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 cyclone channel and a first air inlet communicated with the cyclone channel, the first filter is arranged in the cyclone channel, the outer side of the first filter is communicated with the first air inlet, and the second filter is arranged in the first filter in a penetrating mode; the second filter is provided with a second air inlet and an air outlet, the inner side of the first filter is communicated with the second air inlet, the third filter is arranged at the air outlet, the dust cup is provided with a first dust collection cavity, and the first dust collection cavity is communicated with the cyclone channel; and the second filter defines a second dust collection cavity, the second dust collection cavity is located at the end, away from the air outlet, of the second filter, the granular dust impurities and the airflow have a good separation effect, the granular dust impurities can be prevented from blocking the third filter, and the dust collection device can be conveniently cleaned after being used.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning products, and in particular to a dust collecting device and a cleaning equipment. Background Art

[0002] At present, with the improvement of the quality of life, people have more and more demands for cleaning tools, and automated cleaning equipment is more and more widely used because it can liberate physical labor. Cleaning equipment such as vacuum cleaners and mite removers can be used to remove dust and worms.

[0003] In the related art, cleaning equipment with dust suction function such as vacuum cleaners are usually equipped with a fan and a dust collecting device. The fan can generate negative pressure suction. The airflow formed by the suction sucks external dust and mites into the dust collecting device. The dust collecting device is provided with a filter. After the airflow enters the dust collecting device, it needs to be filtered by the filter to separate dust impurities from the airflow. The clean airflow after filtration is then discharged from the dust collecting device.

[0004] However, the dust collecting device of the current cleaning equipment has a poor separation effect on dust and impurities, which easily causes clogging of the filter element. Utility Model Content

[0005] The present application provides a dust collecting device and a cleaning device to solve the technical problem that the dust collecting device of the current cleaning device has a poor separation effect on dust and impurities and easily causes clogging of the filter element.

[0006] In the first aspect, the present application provides a dust collecting device, which includes a dust cup, a first filter, a second filter and a third filter, the dust cup has a cyclone channel and a first air inlet connected to the cyclone channel, the first filter is arranged in the cyclone channel, the outer side of the first filter is connected to the first air inlet, the second filter is passed through the first filter, the second filter has a second air inlet and an air outlet, the inner side of the first filter is connected to the second air inlet, and the third filter is arranged at the air outlet.

[0007] Among them, the dust cup has a first dust collecting chamber, which is connected to the cyclone channel; the second filter is surrounded to form a second dust collecting chamber, and the second dust collecting chamber is located at the end of the second filter away from the air outlet.

[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 them into the first dust collecting chamber through the cyclone channel, and the second filter can filter and separate the airflow after being 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 embodiment, the second filter may include a cyclone bracket, an air outlet cover and a dust collecting barrel, the air outlet cover is connected to the cyclone bracket, and the second air inlet is located on the side of the cyclone bracket; the air outlet is located on the air outlet cover; the dust collecting barrel is connected to the end of the cyclone bracket facing away from the air outlet cover, and the end of the dust collecting barrel facing away from the cyclone bracket abuts against the inner wall of the dust cup and is surrounded to form a second dust collecting chamber.

[0010] With such arrangement, the airflow entering the second filter from the second air inlet on the side can be settled and separated inside the second filter, and the dust and impurities in the airflow can be collected for a second time.

[0011] As an optional embodiment, the cyclone bracket has a conical air duct, the second air inlet is connected to the first end of the conical air duct, and the second end of the conical air duct faces the second dust collecting chamber; the ventilation cross-sectional area of ​​the second end of the conical air duct is smaller than the ventilation cross-sectional area of ​​the first end of the conical air duct.

[0012] With this arrangement, after the airflow enters the cyclone bracket, the dust and impurity particles in it can be settled through the conical air duct, achieving a good separation effect.

[0013] As an optional embodiment, the air outlet cover may include a cover plate and a ventilation duct, the air outlet is arranged on the cover plate, the ventilation duct is connected to the cover plate and communicated with the air outlet; one end of the ventilation duct away from the air outlet is at least partially inserted into the conical air duct.

[0014] Such an arrangement can ensure that the airflow enters the ventilation duct after being fully settled and separated, thereby improving the separation effect of gas and particulate impurities in the airflow.

[0015] As an optional implementation, there may be multiple second air inlets, and the multiple second air inlets are arranged at intervals around the outer wall of the ventilation duct; the multiple second air inlets are all connected to the conical air duct.

[0016] With such an arrangement, airflow can enter the interior of the cyclone bracket from different directions around the cyclone bracket, thereby increasing the flow rate of airflow.

[0017] As an alternative embodiment, the cyclone support may include a support body and a plurality of first air guiding portions. The support body is configured to form a conical air duct. The plurality of first air guiding portions are connected to the end of the support body and are circumferentially spaced apart around the support body; a second air inlet is formed between adjacent first air guiding portions.

[0018] With such an arrangement, the air flow can be guided into the conical air duct through the second air inlet, reducing the air resistance and improving the smoothness of the air flow.

[0019] As an alternative embodiment, the first air guiding portion extends from the outer side of the end of the support body along an arc direction towards the inner side of the end of the support body; the plurality of first air guiding portions are centrosymmetric with respect to the central axis of the support body.

[0020] With such an arrangement, the air flow can be guided to rotate when entering the conical air duct, so as to achieve a better rotational sedimentation effect of dust and impurity particles by using centrifugal force.

[0021] As an alternative embodiment, there may be a plurality of conical air ducts and a plurality of ventilation pipes. The plurality of ventilation pipes are arranged in one-to-one correspondence with the plurality of conical air ducts; there may be a plurality of second air inlets, which are circumferentially spaced apart around the cyclone support, and each conical air duct communicates with at least two second air inlets.

[0022] With such an arrangement, the air flow can be simultaneously shunted through the plurality of conical air ducts, and particle impurities can be sedimented simultaneously, achieving a good effect of separating particles from the air flow.

[0023] As an alternative embodiment, the plurality of conical air ducts may include a first air duct and a plurality of second air ducts. The plurality of second air ducts are arranged at intervals around the first air duct; the plurality of second air inlets communicate with the first air duct and the second air ducts respectively.

[0024] With such an arrangement, the air flow filtered by the first filter can be shunted into the first air duct and the second air ducts, increasing the flow rate of the air flow entering the second filter.

[0025] As an alternative embodiment, the cyclone support may include a support body, a plurality of second air guiding portions and a plurality of third air guiding portions; the plurality of second air inlets may include a middle air inlet and a circumferential side air inlet. The plurality of second air guiding portions are arranged at intervals around the air inlet end of the first air duct at the end of the support body. A middle air inlet is formed between adjacent second air guiding portions, and the middle air inlet communicates with the first air duct.

[0026] Wherein, the third air guiding portion is located on the side of the second air guiding portion away from the first air duct, the second air duct is located between the second air guiding portion and the third air guiding portion, and circumferential side air inlets are respectively formed between the two ends of the third air guiding portion and the two ends of the second air guiding portion; the circumferential side air inlets communicate with the second air ducts.

[0027] With such an arrangement, the diverted air flow can be guided, improving the smoothness of air flow and reducing wind resistance and wind noise.

[0028] As an alternative embodiment, the first filter may include an air duct upper cover and a filter screen. The air duct upper cover is sealingly connected to the inner wall of the dust cup; the filter screen is connected to the air duct upper cover and is disposed around the second filter.

[0029] With such an arrangement, it can ensure that the dust cup has good sealing performance.

[0030] As an alternative embodiment, the side of the air duct upper cover facing away from the filter screen has a receiving groove, and the third filter is disposed in the receiving groove; the contour shape of the third filter matches the contour shape of the receiving groove.

[0031] With such an arrangement, the air flow flowing out of the dust cup can be fully filtered to ensure the cleanliness of the air flow.

[0032] As an alternative embodiment, the first filter may further include a first seal, which is disposed around the circumferential side wall of the air duct upper cover, and the first seal abuts against the circumferential inner wall of the dust cup.

[0033] With such an arrangement, the sealing performance of the dust cup can be improved.

[0034] As an alternative embodiment, the dust collection device may further include a flexible dust baffle. The dust baffle has a clamping portion, and a clamping groove is provided on the side of the first air inlet. The clamping portion is clamped in the clamping groove; the dust baffle is disposed to block the first air inlet.

[0035] With such an arrangement, it can prevent the dust and impurities in the dust cup from flowing back or falling back through the first air inlet.

[0036] As an alternative embodiment, the dust cup may include a dust cup body, a bottom cover and a second seal. The bottom cover is connected to the side of the dust cup body facing away from the first filter, and the second seal abuts between the second dust collection chamber and the bottom cover.

[0037] With such an arrangement, the sealing performance of the second dust collection chamber can be improved.

[0038] 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 a locking groove is provided on the edge of the bottom cover. The locking portion can be engaged with or disengaged from the locking groove to lock or unlock the bottom cover relative to the dust cup body.

[0039] With such an arrangement, it is convenient to clean the dust cup.

[0040] 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, and the dust collection device is detachably connected to the device main body.

[0041] The present application provides 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 cyclone channel and a first air inlet communicating with the cyclone channel. The first filter is disposed in the cyclone channel, and the outside of the first filter communicates with the first air inlet. The second filter passes through the first filter. The second filter has a second air inlet and an air outlet. The inside of the first filter communicates with the second air inlet. The third filter is disposed at the air outlet. The dust cup has a first dust collection cavity, and the first dust collection cavity communicates with the cyclone channel; the second filter surrounds to form a second dust collection cavity, and the second dust collection cavity is located at one end of the second filter away from the air outlet. 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.

[0042] 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 implementation manners. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] 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.

[0044] Figure 1 It is a schematic structural diagram of the dust collection device provided by the embodiment of the present application;

[0045] Figure 2 It is a cross-sectional view of the dust collection device provided by the embodiment of the present application;

[0046] Figure 3 It is an exploded view of the dust collection device provided by the embodiment of the present application Figure 1 ;

[0047] Figure 4 It is an exploded view of the dust collection device provided by the embodiment of the present application Figure 2 ;

[0048] Figure 5Schematic diagram of the dust cup of the dust collection device provided by the embodiment of the present application;

[0049] Figure 6 Assembly drawing of the first filter and the second filter in the dust collection device provided by the embodiment of the present application;

[0050] Figure 7 Schematic diagram of the first filter in the dust collection device provided by the embodiment of the present application;

[0051] Figure 8 Schematic diagram of the second filter in the dust collection device provided by the embodiment of the present application;

[0052] Figure 9 Cross-sectional view of the dust collection device provided by the embodiment of the present application along the radial direction of the first filter;

[0053] Figure 10 Schematic diagram of the air flow circulation in the dust collection device provided by the embodiment of the present application;

[0054] Figure 11 Cross-sectional view of another structure of the dust collection device provided by the embodiment of the present application;

[0055] Figure 12 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;

[0056] Figure 13 Exploded view of the first filter and the second filter of another structure of the dust collection device provided by the embodiment of the present application;

[0057] Figure 14 Explosion of the second filter in the dust collection device provided by the embodiment of the present application Figure 1 ;

[0058] Figure 15 Explosion of the second filter in the dust collection device provided by the embodiment of the present application Figure 2 ;

[0059] Figure 16 Schematic diagram of the air flow circulation of another structure of the dust collection device provided by the embodiment of the present application;

[0060] Figure 17 Cross-section of the cleaning device provided by the embodiment of the present application Figure 1 ;

[0061] Figure 18 Cross-section of the cleaning device provided by the embodiment of the present application Figure 2 。

[0062] Explanation of reference numerals:

[0063] 10 - Dust collection device;

[0064] 100 - Dust cup; 101 - Cyclone channel; 102 - First air inlet; 103 - First dust collection chamber; 104 - Snap groove; 110 - Dust cup body; 120 - Bottom cover; 121 - Locking groove; 130 - Dust blocking piece; 131 - Snap part; 140 - Second seal; 150 - Locking piece; 151 - Locking part; 160 - Elastic piece;

[0065] 200 - First filter; 210 - Air duct upper cover; 211 - Accommodating groove; 220 - Filter screen; 230 - First seal;

[0066] 300 - Second filter; 301 - Second air inlet; 301a - Intermediate air inlet; 301b - Peripheral air inlet; 302 - Air outlet; 303 - Second dust collection chamber; 310 - Cyclone support; 311 - Conical air duct; 311a - First air duct; 311b - Second air duct; 312 - Support body; 313 - First air guiding part; 314 - Second air guiding part; 315 - Third air guiding part; 320 - Air outlet upper cover; 321 - Cover plate; 322 - Ventilation pipe; 330 - Dust collection cylinder;

[0067] 400 - Third filter;

[0068] 20 - Equipment main body. Detailed implementation mode

[0069] In the description of this 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 internal connection of 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 this application can be understood according to specific situations.

[0070] In the description of this 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 this 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 therefore should not be construed as a limitation to this application.

[0071] The terms "first", "second", "third" (if any) in the description, claims and the above drawings of the present application 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.

[0072] 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 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 maintenance tools.

[0073] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of 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.

[0074] Cleaning devices such as vacuum cleaners and mite removers can be used to remove dust and mites. Cleaning devices with a dust suction function such as vacuum cleaners are usually provided with a blower and a dust collection device. The blower 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 be filtered by the filter element to separate the dust impurities from the airflow. The filtered clean airflow is then discharged from the dust collection device to prevent dust impurities from entering the blower and causing damage to the blower, and at the same time to prevent dust impurities from being discharged into the atmosphere again and causing secondary pollution.

[0075] However, at present, the dust collection device of the cleaning device has a poor separation effect 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 effect. After long-term use, it will cause difficulty in cleaning the dust collection device.

[0076] To solve the above technical problems, the embodiments of the present application provide a dust collection device and a cleaning device. By designing the filter structure in the dust collection device, multi-stage filters are provided to separately 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 using the cleaning device, it is convenient to clean the dust collection device.

[0077] For ease of understanding, first, the application scenario of the dust collection device provided in the embodiments of the present application will be described.

[0078] The dust collection device provided in the embodiments of the present application can be applied to cleaning devices. The cleaning devices can have a dust suction function, including but not limited to vacuum cleaners, floor washers, mite removers, etc. The cleaning devices can be applied to household cleaning, and can also be applied 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 devices.

[0079] Figure 1 is a schematic structural diagram of the dust collection device provided in the embodiments of the present application; Figure 2 is a cross-sectional view of the dust collection device provided in the embodiments of the present application; Figure 3 is the explosion Figure 1 ; Figure 4 is the explosion Figure 2 .

[0080] See Figures 1 to 4 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 a cleaning device having 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.

[0081] Among them, the dust cup 100 has a cyclone channel 101 and a first air inlet 102 communicating with the cyclone channel 101. The first filter 200 is disposed in the cyclone channel 101, and the outside of the first filter 200 communicates with the first air inlet 102. The second filter 300 is disposed through the first filter 200. The second filter 300 has a second air inlet 301 and an air outlet 302. The inside of the first filter 200 communicates with the second air inlet 301, and the third filter 400 is disposed at the air outlet 302.

[0082] It can be understood that the first filter 200, the second filter 300, and the third filter 400 can perform hierarchical filtration on the air flow containing dust impurities flowing through the dust cup 100. The first filter 200 can perform the first-stage filtration on the air flow entering the dust cup 100. The filtered air flow enters the second filter 300 and is second-stage filtered by the second filter 300. Finally, the air flow flowing out of the second filter 300 will be discharged from the air outlet 302 and will be third-stage filtered by the third filter 400 when discharging.

[0083] In some embodiments, the dust cup 100 has a first dust collection cavity 103, and the first dust collection cavity 103 communicates with the cyclone channel 101. The second filter 300 surrounds and forms a second dust collection cavity 303, and the second dust collection cavity 303 is located at one end of the second filter 300 away from the air outlet 302.

[0084] It can be understood that the first filter 200 is used to filter out impurities with larger particles, and the impurities filtered out by the first filter 200 can be collected in the first dust collection cavity 103. The second filter 300 is used to filter out impurities with relatively smaller particles, and the impurities filtered out by the second filter 300 are collected in the second dust collection cavity 303. The third filter 400 then finely filters the finally exhausted air flow and adsorbs the remaining dust in the air flow.

[0085] Exemplarily, the third filter 400 may include a High Efficiency Particulate Air Filter (HEPA Filter), and the third filter 400 can filter solids in the micron range, thereby ensuring the cleanliness of the air flowing out of the dust collection device 10.

[0086] It should be noted that in the dust collection device 10 provided in the present application, the first filter 200 can filter out dust impurities with larger particles and separate them into the first dust collection cavity 103 through the cyclone channel 101. The second filter 300 can filter and separate the air flow after being filtered by the first filter 200, and settle the dust impurities with smaller particles into the second dust collection cavity 303. Finally, the air flow flowing out of the second filter 300 can be filtered by the third filter 400 and then exhausted 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.

[0087] Exemplarily, when the dust collection device 10 is applied to a cleaning device, the first air inlet 102 can communicate with the dust suction port of the cleaning device, and the air outlet 302 of the dust collection device 10 can communicate 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 air flow with impurities is sucked into the dust collection device 10 for separation.

[0088] Figure 5 It is a schematic structural diagram of the dust cup of the dust collection device provided by the embodiment of the present application. Figure 6 It is an assembly drawing of the first filter and the second filter in the dust collection device provided by the embodiment of the present application. Figure 7 It is a schematic structural diagram of the first filter in the dust collection device provided by the embodiment of the present application.

[0089] Please refer toFigures 1 to 7 In the embodiments of the present application, the cyclone channel 101 is used to guide the airflow to flow in the dust cup 100. When the airflow flows along the cyclone channel 101, a cyclone airflow can be formed, thereby generating a centrifugal force to separate impurities in the airflow. Impurities with relatively large weight and particles are thrown into the first dust collection chamber 103, facilitating the collection of impurities. The first filter 200 is used to preliminarily filter the airflow to ensure that the impurity particles in the airflow entering the second filter 300 are relatively small, and hairs and impurities with relatively large particles are retained in the first dust collection chamber 103.

[0090] Exemplarily, the first dust collection chamber 103 may include an area on the side of the cyclone channel 101 and an area below the cyclone channel 101.

[0091] The airflow passing through the first filter 200 will carry small particle impurities and will be filtered by the second filter 300. The specific structure of the second filter 300 will be described in detail below.

[0092] Figure 8 Schematic diagram of the structure of the second filter in the dust collection device provided by the embodiments of the present application; Figure 9 Cross-sectional view of the dust collection device provided by the embodiments of the present application along the radial direction of the first filter; Figure 10 Schematic diagram of the airflow circulation in the dust collection device provided by the embodiments of the present application.

[0093] Please refer to Figures 8 to 10 and in combination with Figures 1 to 7 In a possible implementation manner, the second filter 300 may include a cyclone bracket 310, an air outlet upper cover 320, and a dust collection cylinder 330. The air outlet upper cover 320 is connected to the cyclone bracket 310, and the second air inlet 301 is located on the side of the cyclone bracket 310. The air outlet 302 is located on the air outlet upper cover 320. The dust collection cylinder 330 is connected to one end of the cyclone bracket 310 facing away from the air outlet upper cover 320.

[0094] Among them, the airflow 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 chamber 303, while the airflow after separating the impurities can be discharged from the air outlet 302 to the outside of the air outlet upper cover 320.

[0095] In some embodiments, one end of the dust collection cylinder 330 facing away from the cyclone bracket 310 abuts against the inner wall of the dust cup 100 and encloses to form the second dust collection chamber 303 to ensure good sealing of the end face of the second dust collection chamber 303 and prevent impurities in the second dust collection chamber 303 from entering the first dust collection chamber 103.

[0096] The air flow entering the second filter 300 from the second air inlet 301 on the side can be sedimentationally separated inside it, and the dust impurities in the air flow can be secondarily collected, improving the separation efficiency of the impurities from the air flow.

[0097] 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 chamber 303. 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.

[0098] It can be understood that after the air flow enters the inside of the cyclone bracket 310, it flows from the first end to the second end of the conical air duct 311, and the dust impurity particles of the air flow can settle through the conical air duct 311 to achieve a good separation effect.

[0099] Exemplarily, the outer side wall of the cyclone bracket 310 can be provided with limiting ribs. When the second filter 300 is inserted into the first filter 200, the limiting member can abut against the bottom wall of the first filter 200, thereby preventing the second filter 300 from shaking or being installed deflectedly relative to the first filter 200, and further improving the accuracy and reliability of the installation position of the second filter 300. The limiting ribs can be multiple, and the multiple limiting members can be arranged at intervals around the outer wall of the cyclone bracket 310.

[0100] Exemplarily, the cyclone bracket 310 and the dust collection cylinder 330 can be integrally formed, or the cyclone bracket 310 and the dust collection cylinder 330 can be connected by ultrasonic welding or other means, and the embodiments of the present application do not make specific limitations on this.

[0101] In some embodiments, the air outlet upper cover 320 can include a cover plate 321 and a ventilation pipe 322. The air outlet 302 is arranged on the cover plate 321, and the ventilation pipe 322 is connected to the cover plate 321 and communicated with the air outlet 302. At least a part of the end of the ventilation pipe 322 away from the air outlet 302 is inserted into the conical air duct 311, so as to ensure that the air flow enters the ventilation pipe 322 after sufficient sedimentational separation, improving the separation effect of the gas and particulate impurities in the air flow.

[0102] It can be understood that the cover plate 321 can be connected to the end of the cyclone bracket 310. 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 settle first under the action of centrifugal force and gravity. Thereafter, the air flow can enter the ventilation pipe 322 from the bottom of the ventilation pipe 322, flow upward along the ventilation pipe 322, and flow out from the air outlet 302.

[0103] Exemplarily, one of a card slot and a buckle can be provided on the circumferential edge of the cover plate 321, and the other of the card slot and the buckle can be provided on the first filter 200. After the second filter 300 is inserted into the first filter 200, by rotating the second filter 300, the buckle can be engaged with the card slot, thereby completing the relative installation of the second filter 300 and the first filter 200, ensuring the installation reliability of both and facilitating disassembly.

[0104] Exemplarily, a handle structure can be provided above the cover plate 321, which is convenient for lifting the second filter 300 when disassembling the second filter 300 and the first filter 200.

[0105] In the embodiments of the present application, the cyclone bracket 310 can sediment particles through a single conical air duct 311 or through multiple conical air ducts 311, which will be described below through different examples.

[0106] Please continue to refer to Figures 2 to 10 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 wall of the ventilation pipe 322, and the multiple second air inlets 301 are all communicated with the conical air duct 311.

[0107] It can be understood that the cyclone bracket 310 has a structure of a single conical air duct 311, and air flow can enter the interior of the conical air duct 311 from different directions on the circumferential side of the cyclone bracket 310, increasing the air flow rate.

[0108] In some embodiments, the cyclone bracket 310 can include a bracket main body 312 and multiple first air guiding parts 313. The bracket main body 312 is configured to form the conical air duct 311, and the multiple first air guiding parts 313 are connected to the end of the bracket main body 312 and are distributed at intervals around the circumference of the bracket main body 312. A second air inlet 301 is formed between adjacent first air guiding parts 313. In this way, the air flow can be guided to flow into the conical air duct 311 at the second inlet, reducing the wind resistance and wind noise and improving the smoothness of the air flow.

[0109] Exemplarily, the upper end of the first air guiding part 313 can be in contact with the air outlet upper cover 320. The upper end of the first air guiding part 313 can be ultrasonically welded to the air outlet upper cover 320, improving the connection reliability and at the same time ensuring good sealing performance between the air outlet upper cover 320 and the first air guiding part 313.

[0110] In some embodiments, the first air guiding part 313 extends from the outer side of the end of the bracket main body 312 along an arc direction towards the inner side of the end of the bracket main body 312.

[0111] It can be understood that the first air guiding part 313 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 achieve a better rotational sedimentation effect of dust and impurity particles by using centrifugal force.

[0112] Exemplarily, a plurality of first air guiding parts 313 are centrosymmetric with respect to the central axis of the bracket main body 312. The air flows entering from different second air inlets 301 have the same rotation direction when rotating.

[0113] It should be noted that the number of the first air guiding parts 313 can be set according to the number of the required second air inlets 301. For example, the first air guiding parts 313 can be two, three, four, five, six, etc. When the first air guiding parts 313 are six, the second air inlets 301 are also six. The embodiment of the present application does not make a specific limitation on the set number of the second air inlets 301.

[0114] Figure 11 It is a cross-sectional view of another structure of the dust collection device provided by the embodiment of the present application. Figure 12 It is an assembly diagram of a first filter and a second filter of another structure of the dust collection device provided by the embodiment of the present application. Figure 13 It is an exploded view of a first filter and a second filter of another structure of the dust collection device provided by the embodiment of the present application. Figure 14 It is an explosion of the second filter in the dust collection device provided by the embodiment of the present application. Figure 1 , Figure 15 It is an explosion of the second filter in the dust collection device provided by the embodiment of the present application. Figure 2 , Figure 16 It is a schematic diagram of air flow circulation of another structure of the dust collection device provided by the embodiment of the present application.

[0115] Please refer to Figures 11 to 16 , in a possible implementation manner, there can be a plurality of conical air ducts 311, and there can be a plurality of ventilation pipes 322. The plurality of ventilation pipes 322 are arranged in one-to-one correspondence with the plurality of conical air ducts 311. The second air inlets 301 can be multiple, and the multiple second air inlets 301 are circumferentially spaced apart around the cyclone bracket 310. Each conical air duct 311 is communicated with at least two second air inlets 301.

[0116] It can be understood that the cyclone bracket 310 can simultaneously shunt the air flow through a plurality of conical air ducts 311, and simultaneously perform sedimentation of particulate impurities, achieving a good effect of separating particles from the air flow.

[0117] In some embodiments, the plurality of conical air ducts 311 may include a first air duct 311a and a plurality of second air ducts 311b, and the plurality of second air ducts 311b are arranged at intervals around the first air duct 311a. The plurality of second air inlets 301 are respectively connected to the first air duct 311a and the second air duct 311b, so that the airflow filtered by the first filter 200 can be diverted into the first air duct 311a and the second air duct 311b, increasing the flow rate of the airflow entering the second filter 300.

[0118] Among them, the cyclone bracket 310 may include a bracket body 312, multiple second air guide parts 314 and multiple third air guide parts 315; the multiple second air inlets 301 may include an intermediate air inlet 301a and a peripheral air inlet 301b, and the multiple second air guide parts 314 are arranged at intervals around the air inlet end of the first air duct 311a at the end of the bracket body 312, and an intermediate air inlet 301a is formed between adjacent second air guide parts 314, and the intermediate air inlet 301a is connected to the first air duct 311a.

[0119] It can be understood that the third air guide portion 315 is located on the side of the second air guide portion 314 away from the first air duct 311a, the second air duct 311b is located between the second air guide portion 314 and the third air guide portion 315, and peripheral air inlets 301b are respectively formed between the two ends of the third air guide portion 315 and the two ends of the second air guide portion 314, and the peripheral air inlet 301b is connected to the second air duct 311b, so that the diverted airflow can be guided, the smoothness of the airflow circulation is improved, and the wind resistance and wind noise are reduced.

[0120] Exemplarily, there are four second air ducts 311b, there can be four second air guides 314, and the four second air guides 314 can form four middle air inlets 301a. There can be four third air guides 315, and the four third air guides 315 correspond to the four second air guides 314 one by one, each second air guide 314 corresponds to one third air guide 315, and the two ends of the third air guide 315 respectively form the peripheral air inlets 301b.

[0121] Exemplarily, the tops of the second air guide portion 314 and the third air guide portion 315 may be connected to the air outlet upper cover 320 by ultrasonic welding.

[0122] It should be noted that the second air guide portion 314 and the third air guide portion 315 respectively have an arc-shaped air guide structure, so that the airflow entering from the peripheral air inlets 301b at both ends of the third air guide portion 315 has the same rotation direction when rotating, so as to improve the smoothness of the airflow and reduce wind resistance and wind noise.

[0123] The specific structure of the first filter 200 is described in detail below.

[0124] Please continue to refer to Figures 1 to 7, in a possible implementation, the first filter 200 may include an air duct upper cover 210 and a filter screen 220. The air duct upper cover 210 is hermetically connected to the inner wall of the dust cup 100. The filter screen 220 is connected to the air duct upper cover 210 and is disposed around the second filter 300. In this way, good sealing performance of the dust cup 100 can be ensured.

[0125] Exemplarily, the aperture diameter of the filtering holes of the filter screen 220 may 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 thereto.

[0126] In some embodiments, a receiving groove 211 is provided on the side of the air duct upper cover 210 facing away from the filter screen 220. The third filter 400 is disposed in the receiving groove 211. The contour shape of the third filter 400 matches the contour shape of the receiving groove 211. In this way, the airflow flowing from the dust cup 100 can be fully filtered to ensure the cleanliness of the airflow.

[0127] Exemplarily, a handle structure may be provided above the third filter 400 to facilitate the user to disassemble the third filter 400 from the dust cup 100.

[0128] In some embodiments, the first filter 200 may further include a first seal 230. The first seal 230 is disposed around the circumferential side wall of the air duct upper cover 210, and the first seal 230 abuts against the circumferential inner wall of the dust cup 100, thereby improving the sealing performance of the dust cup 100.

[0129] Exemplarily, the first seal 230 may be a sealing ring made of an elastic material such as rubber or silica gel. The embodiments of the present application do not make specific limitations to its material.

[0130] In a possible implementation, the dust collection device 10 may further include a flexible dust baffle 130. The dust baffle 130 has a clamping portion 131, and a clamping groove 104 is provided on the side of the first air inlet 102. The clamping portion 131 is clamped in the clamping groove 104. The dust baffle 130 blocks the first air inlet 102, thereby preventing the dust and impurities in the dust cup 100 from flowing back or falling back through the first air inlet 102.

[0131] 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 130 facing outside the first air inlet 102 is greater than the pressure inside the dust cup 100. In this way, the dust blocking piece 130 will be elastically deformed and bent under the action of the pressure difference, thereby opening the first air inlet 102 so that air can enter the inside of the dust cup 100. When the fan of the cleaning device stops, the dust blocking piece 130 will rebound and block the first air inlet 102 to prevent dust and impurities in the dust cup 100 from leaking out.

[0132] The structure of the dust cup 100 will be described in detail below.

[0133] Please continue to refer to Figures 1 to 5 , in a possible implementation manner, the dust cup 100 may include a dust cup main body 110, a bottom cover 120, and a second seal 140. The bottom cover 120 is connected to the side of the dust cup main body 110 facing away from the first filter, and the second seal 140 abuts between the second dust collection chamber 303 and the bottom cover 120, thereby improving the sealing performance of the second dust collection chamber 303.

[0134] Wherein, an annular sealing groove may be provided on the side of the bottom cover 120 facing the dust cup main body 110. The second seal 140 may be an O-ring and is disposed in the sealing groove. The end of the cavity wall of the second dust collection chamber 303 may correspond to the sealing groove and abut against the second seal 140, thereby ensuring good sealing performance between the second dust collection chamber 303 and the first dust collection chamber 103.

[0135] Exemplarily, the material of the second seal 140 may be a sealing cotton made of ethylene-vinyl acetate copolymer (EVA). The second seal 140 may also adopt other flexible sealing materials, and the embodiments of the present application do not make specific limitations thereto.

[0136] In some embodiments, the dust cup 100 may further include a locking member 150 and an elastic member 160. The locking member 150 is rotatably connected to the outer side wall of the dust cup main body 110, and the elastic member 160 abuts between the locking member 150 and the outer side wall of the dust cup main body 110. The first end of the locking member 150 has a locking portion 151, and the edge of the bottom cover 120 has a locking groove 121. The locking portion 151 can be engaged or disengaged with the locking groove 121 to lock or unlock the bottom cover 120 relative to the dust cup main body 110. Thereby, it is convenient to open the bottom cover 120 to clean the dust cup 100.

[0137] 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 150, and the rotating shaft may be rotatably inserted into the installation hole so that the locking member 150 can rotate relative to the dust cup body 110. The elastic member 160 and the locking groove 121 respectively correspond to the two ends of the locking member 150. When pressing one end of the locking member 150 corresponding to the elastic member 160, the elastic member 160 is compressed, the locking member 150 rotates, and the locking portion 151 is separated from the locking groove 121. When the locking member 150 is not pressed, the elastic member 160 rebounds, and under the elastic force of the elastic member 160, the locking member 150 rotates back, and the locking portion 151 is engaged with the locking groove 121.

[0138] Exemplarily, a limiting groove or a limiting protrusion may be respectively provided on the dust cup body 110 and the locking member 150, the elastic member may be a spring, and the two ends of the elastic member 160 respectively correspond to the limiting groove or the limiting protrusion.

[0139] 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 150, 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 150 is unlocked.

[0140] Figure 17 Cross-section of the cleaning device provided by the embodiment of the present application Figure 1 ; Figure 18 Cross-section of the cleaning device provided by the embodiment of the present application Figure 2 。

[0141] Please refer to Figure 17 and Figure 8 ,and in combination with Figures 1 to 4 ,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.

[0142] It can be understood that a dust suction port may be provided on the device main body 20, and a fan assembly is installed. The dust suction port is communicated with the first air inlet 102, the fan assembly is communicated with the air outlet 302, and dust and impurities can be sucked in through the dust suction port and sucked into the dust collection device through the first air inlet 102, and the impurities are filtered and retained in the dust collection device 10.

[0143] One or more positioning ribs may be provided on the outer side of the dust cup 100 of the dust collection device 10, and the positioning ribs may correspond to the structure 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 of cooperation between a buckle and a spring, and the embodiment of the present application does not make specific limitations on this.

[0144] 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 here.

[0145] 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 cyclone channel and a first air inlet communicating with the cyclone channel. The first filter is disposed in the cyclone channel, and the outside of the first filter communicates with the first air inlet. The second filter is disposed through the first filter. The second filter has a second air inlet and an air outlet. The inside of the first filter communicates with the second air inlet. The third filter is disposed at the air outlet. The dust cup has a first dust collection cavity, and the first dust collection cavity communicates with the cyclone channel. The second filter encloses to form a second dust collection cavity, and the second dust collection cavity is located at one end of the second filter away from the air outlet. The granular dust impurities have a good separation effect from the air flow, which can avoid the granular dust impurities from clogging the third filter and facilitate the cleaning of the dust collection device after use.

[0146] 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 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 cyclone channel (101) and a first air inlet (102) connected to the cyclone channel (101); the first filter (200) is arranged in the cyclone channel (101); the outer side of the first filter (200) is connected to the first air inlet (102); the second filter (300) is passed through the first filter (200); the second filter (300) has a second air inlet (301) and an air outlet (302); the inner side of the first filter (200) is connected to the second air inlet (301); and the third filter (400) is arranged at the air outlet (302); The dust cup (100) has a first dust collecting chamber (103), and the first dust collecting chamber (103) is connected to the cyclone channel (101); the second filter (300) is surrounded to form a second dust collecting chamber (303), and the second dust collecting chamber (303) is located at an end of the second filter (300) away from the air outlet (302).

2. The dust collecting device (10) according to claim 1, characterized in that: The second filter (300) comprises a cyclone bracket (310), an air outlet cover (320) and a dust collecting barrel (330); the air outlet cover (320) is connected to the cyclone bracket (310); the second air inlet (301) is located on the side of the cyclone bracket (310); the air outlet (302) is located on the air outlet cover (320); the dust collecting barrel (330) is connected to one end of the cyclone bracket (310) away from the air outlet cover (320); the end of the dust collecting barrel (330) 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 (303).

3. The dust collecting device (10) according to claim 2, 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 (303); 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).

4. The dust collecting device (10) according to claim 3, characterized in that: The air outlet upper cover (320) comprises a cover plate (321) and a ventilation pipe (322); the air outlet (302) is arranged on the cover plate (321); the ventilation pipe (322) is connected to the cover plate (321) and communicates with the air outlet (302); one end of the ventilation pipe (322) away from the air outlet (302) is at least partially inserted into the conical air duct (311).

5. The dust collecting device (10) according to claim 4, 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 (322); and the plurality of second air inlets (301) are all connected to the conical air duct (311).

6. The dust collecting device (10) according to claim 5, characterized in that: The cyclone bracket (310) comprises a bracket body (312) and a plurality of first air guide portions (313); the bracket body (312) is configured to form the conical air duct (311); the plurality of first air guide portions (313) are connected to the end of the bracket body (312) and are distributed at intervals around the circumference of the bracket body (312); and the second air inlet (301) is formed between adjacent first air guide portions (313).

7. The dust collecting device (10) according to claim 6, characterized in that: The first air guide portion (313) extends from the outer side of the end of the bracket body (312) toward the inner side of the end of the bracket body (312) in an arc direction; and the plurality of first air guide portions (313) are centrally symmetrical with respect to the central axis of the bracket body (312).

8. The dust collecting device (10) according to claim 4, characterized in that: There are a plurality of conical air ducts (311), and a plurality of ventilation pipes (322), and the plurality of ventilation pipes (322) 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 two of the second air inlets (301).

9. The dust collecting device (10) according to claim 8, characterized in that: The plurality of conical air ducts (311) include a first air duct (311a) and a plurality of second air ducts (311b), and the plurality of second air ducts (311b) are arranged at intervals around the first air duct (311a); and the plurality of second air inlets (301) are respectively connected to the first air duct (311a) and the second air duct (311b).

10. The dust collecting device (10) according to claim 9, characterized in that: The cyclone bracket (310) comprises a bracket body (312), a plurality of second air guides (314) and a plurality of third air guides (315); the plurality of second air inlets (301) comprise a middle air inlet (301a) and a peripheral air inlet (301b); the plurality of second air guides (314) are arranged at intervals around the air inlet end of the first air duct (311a) at the end of the bracket body (312); the middle air inlet (301a) is formed between adjacent second air guides (314); and the middle air inlet (301a) is connected to the first air duct (311a); The third air guide portion (315) is located on a side of the second air guide portion (314) away from the first air duct (311a); the second air duct (311b) is located between the second air guide portion (314) and the third air guide portion (315); the peripheral air inlet (301b) is formed between the two ends of the third air guide portion (315) and the two ends of the second air guide portion (314); and the peripheral air inlet (301b) is connected to the second air duct (311b).

11. The dust collecting device (10) according to any one of claims 1 to 10, characterized in that: The first filter (200) comprises an air duct upper cover (210) and a filter screen (220); the air duct upper cover (210) is sealedly connected to the inner wall of the dust cup (100); the filter screen (220) is connected to the air duct upper cover (210) and is arranged around the second filter (300).

12. The dust collecting device (10) according to claim 11, characterized in that: The side of the air duct upper cover (210) facing away from the filter screen (220) has a receiving groove (211), and the third filter (400) is arranged in the receiving groove (211); the contour shape of the third filter (400) matches the contour shape of the receiving groove (211).

13. The dust collecting device (10) according to claim 11, characterized in that: The first filter (200) further comprises a first seal (230), wherein the first seal (230) is arranged around the circumferential side wall of the air duct upper cover (210), and the first seal (230) abuts against the circumferential inner wall of the dust cup (100).

14. The dust collecting device (10) according to any one of claims 1 to 10, characterized in that: The dust collecting device (10) further comprises a flexible dust shield (130), the dust shield (130) having a snap-on portion (131), a snap-on groove (104) being provided on the side of the first air inlet (102), the snap-on portion (131) being snap-on to the snap-on groove (104); the dust shield (130) is arranged to block the first air inlet (102).

15. The dust collecting device (10) according to any one of claims 1 to 10, characterized in that: The dust cup (100) comprises a dust cup body (110), a bottom cover (120) and a second sealing member (140), wherein the bottom cover (120) is connected to a side of the dust cup body (110) facing away from the first filter (200), and the second sealing member (140) is abutted between the second dust collecting chamber (303) and the bottom cover (120).

16. The dust collecting device (10) according to claim 15, characterized in that: The dust cup (100) further comprises a locking member (150) and an elastic member (160), wherein the locking member (150) is rotatably connected to the outer wall of the dust cup body (110), and the elastic member (160) abuts between the locking member (150) and the outer wall of the dust cup body (110); the first end of the locking member (150) comprises a locking portion (151), and the edge of the bottom cover (120) comprises a locking groove (121), and the locking portion (151) 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).

17. 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 16, wherein the dust collecting device (10) is detachably connected to the equipment body (20).

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