Dust cup structure and cleaning equipment

Abstract

The utility model provides a dust cup structure and cleaning equipment, the dust cup structure comprises a first cup body and a cyclone cylinder, the cyclone cylinder is connected with the first cup body, the cyclone cylinder is located in the first cup body, a separation cavity is defined between the first cup body and the cyclone cylinder, an air outlet cavity is formed in the cyclone cylinder, one end of the cyclone cylinder is provided with a first air outlet, and the other end of the cyclone cylinder is provided with a second air outlet; the first air outlet communicates with the air outlet cavity, a first filter screen is arranged on the side wall of the cyclone cylinder, and the first filter screen communicates with the separation cavity and the air outlet cavity; wherein the caliber d of the cyclone and the caliber D of the first cup body meet the condition that d / D is less than or equal to 1 / 2. The dust cup structure is good in dust-air separation effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of environmental cleaning appliances, and particularly relates to a dust cup structure and a cleaning device. BACKGROUND

[0002] In the related art, a household cleaning device such as a vacuum cleaner can include a main machine and a dust collection assembly. The main machine has a suction assembly. Negative pressure generated by the suction assembly can collect dust and other impurities on the ground into the dust collection assembly. The dust collection assembly includes a dust cup and a filter screen. The filter screen is in a cylindrical shape and is arranged in the dust cup, thereby forming a separation cavity between the dust cup and the filter screen. The dust cup has an air inlet and an air outlet, so that the airflow enters the air inlet and rotates in the separation cavity, thereby performing centrifugal separation. The separated airflow passes through the filter screen and is discharged from the air outlet. The dust and other particulate matters separated by centrifugal separation are deposited at the bottom of the dust cup.

[0003] However, the filter screen is easily blocked by solid particles, and the separation efficiency of the dust collection assembly is low. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a dust cup structure and a cleaning device to solve the problems in the related art.

[0005] The dust cup structure provided in the embodiment of the present application includes a first cup body and a cyclone cylinder. The cyclone cylinder is connected with the first cup body and located in the first cup body. A separation cavity is defined between the first cup body and the cyclone cylinder. The cyclone cylinder has an air outlet cavity. One end of the cyclone cylinder has a first air outlet. The first air outlet is in communication with the air outlet cavity. A first filter screen is arranged on the side wall of the cyclone cylinder. The first filter screen is in communication with the separation cavity and the air outlet cavity.

[0006] In the embodiment, the diameter d of the cyclone cylinder and the diameter D of the first cup body satisfy the condition d / D≤1 / 2.

[0007] The dust cup structure provided in the embodiment of the present application includes a first cup body and a cyclone cylinder. The cyclone cylinder is connected with the first cup body and located in the first cup body. A separation cavity is defined between the first cup body and the cyclone cylinder. The cyclone cylinder has an air outlet cavity. One end of the cyclone cylinder has a first air outlet. The first air outlet is in communication with the air outlet cavity. A first filter screen is arranged on the side wall of the cyclone cylinder. The first filter screen is in communication with the separation cavity and the air outlet cavity.

[0008] In a possible implementation, the diameter D of the first cup body is greater than or equal to 80mm.

[0009] And / or, the distance between the inner circumferential wall of the first cup body and the outer circumferential wall of the cyclone barrel is greater than or equal to 20mm.

[0010] In this way, the caliber D of the first cup body is large enough, and the distance between the inner circumferential wall of the first cup body and the outer circumferential wall of the cyclone barrel is large enough, so that the fluid rotates away from the first filter screen.

[0011] In a possible implementation, the dust cup structure further comprises: a second cup body, the first cup body is connected in the second cup body, and the second cup body and the first cup body define a dust storage cavity; the first cup body has a dust discharge port, the second cup body has an air inlet and a second air outlet, the air inlet is located on the side wall of the second cup body, and the second air outlet is located at one end of the second cup body.

[0012] The air inlet is in communication with the separation cavity, the dust discharge port is in communication with the separation cavity and the dust storage cavity, and the air outlet cavity, the first air outlet and the second air outlet are sequentially communicated.

[0013] In this way, the fluid enters the separation cavity through the air inlet, can rotate away from the first filter screen around the circumference of the cyclone barrel, and then separates the solid particles in the fluid in the process. After that, the separated gas can pass through the first filter screen into the air outlet cavity, and then sequentially flow out from the first air outlet and the second air outlet, while the solid particles are intercepted by the first filter screen in the separation cavity and enter the dust storage cavity through the dust discharge port, and then deposited in the dust storage cavity.

[0014] In this way, the fluid enters the separation cavity through the air inlet, can rotate away from the first filter screen around the circumference of the cyclone barrel, and then separates the solid particles in the fluid. After that, part of the separated gas can pass through the first filter screen into the air outlet cavity, and then sequentially flow out from the first air outlet and the second air outlet, part of the separated gas can drive the solid particles to enter the dust storage cavity from the dust discharge port, and make the dust and other solid particles deposited at the bottom of the dust storage cavity, thereby improving the dust collection effect of the dust cup structure, and the gas can pass through the second filter screen and then sequentially discharged from the air outlet cavity, the first air outlet and the second air outlet.

[0015] In a possible implementation, the dust cup structure further comprises a first filter assembly, the first cup body has a mounting cavity, the dust storage cavity and the mounting cavity are located at two ends of the second cup body, the separation cavity, the air outlet cavity, the first air outlet, the mounting cavity and the second air outlet are sequentially communicated, and the first filter assembly is arranged in the mounting cavity.

[0016] In this way, the first filter assembly can perform secondary filtration on the gas, thereby improving the filtration effect of the dust cup structure, so as to avoid small particles of solid particles entering the main machine of the cleaning equipment, thereby avoiding dust return of the cleaning equipment.

[0017] In a possible implementation, the dust cup structure further comprises a second filter assembly, the second filter assembly is arranged in the mounting cavity, and the first filter assembly is located on one side of the second filter assembly close to the dust storage cavity.

[0018] In this way, the cyclone barrel can perform primary separation and filtration on the fluid, the first filter assembly can perform secondary separation and filtration on the fluid, and the second filter assembly can perform tertiary separation and filtration on the fluid, and then the fluid is discharged from the second air outlet and enters the main machine, so that the multi-stage separation and filtration can improve the filtering effect of the dust cup structure, thereby avoiding dust and the like from entering the main machine.

[0019] In a possible implementation, the dust cup structure further comprises a wind guide assembly, the wind guide assembly is arranged at the first air outlet, the wind guide assembly comprises a flow guide piece, the flow guide piece is connected with the cyclone barrel or the second cup body, and one side of the flow guide piece away from the second air outlet has a flow guide surface to guide the fluid to flow in the radial direction of the cyclone barrel.

[0020] In this way, the fluid flowing in the air outlet cavity flows in the axial direction of the cyclone barrel, and after being guided by the flow guide surface, the flow direction of the fluid can be changed from the axial direction of the cyclone barrel to the radial direction of the cyclone barrel, so that the fluid uniformly flows to each part of the first filter assembly and passes through the first filter assembly at a relatively uniform flow rate, thereby improving the separation and filtration effect of the first filter assembly. In a possible implementation, the wind guide assembly further comprises a plurality of support ribs, the plurality of support ribs are arranged at intervals in the circumferential direction of the flow guide piece, and the support ribs connect the flow guide piece and the second cup body.

[0021] In this way, the support ribs can connect the flow guide piece to the second cup body, the flow guide channel can be defined between the support ribs, the flow guide piece and the first air outlet, and the air outlet cavity and the mounting cavity are communicated through the flow guide channel, so that the fluid in the air outlet cavity flows to the mounting cavity through the flow guide channel.

[0022] In a possible implementation, the flow guide piece comprises a first flow guide part and a second flow guide part connected with each other, the first flow guide part is in a conical shape, one end of the first flow guide part close to the second air outlet is larger than the other end of the first flow guide part away from the second air outlet.

[0023] The second flow guide part is located at the end of the first flow guide part facing the second air outlet, and the second flow guide part is folded towards the outside of the first flow guide part.

[0024] In this way, the flow guide surface formed on the side of the flow guide piece away from the mounting cavity can be a curved surface, so that the flow guide surface gradually changes the flow direction of the fluid from the axial direction of the cyclone barrel to the radial direction of the cyclone barrel, instead of suddenly changing the flow direction, thereby reducing the flow resistance of the fluid, so that the fluid flows more smoothly.

[0025] In a possible implementation, the dust cup structure further includes a baffle, the bottom wall of the cyclone is connected to the bottom wall of the first cup body, and the baffle is connected to an end of the first cup body away from the first air outlet;

[0026] The dust storage chamber includes a first dust storage chamber and a second dust storage chamber which are interconnected. The first dust storage chamber is located on the side of the separation chamber, and the second dust storage chamber is located at the bottom of the separation chamber away from the first air outlet. The baffle is arranged between the first dust storage chamber and the second dust storage chamber.

[0027] In this way, when solid particles are deposited at the bottom of the second dust storage chamber, the baffle disposed between the first and second dust storage chambers can prevent the solid particles deposited in the second dust storage chamber from moving into the first dust storage chamber, thereby preventing the solid particles from flowing back into the separation chamber through the dust outlet, thereby improving the dust collection efficiency of the dust storage chamber. In one possible implementation, the distance between the end of the baffle facing away from the first cup body and the bottom wall of the second cup body facing away from the first air outlet is less than or equal to 25 mm.

[0028] In this way, by controlling the distance within 25 mm, the baffle can effectively prevent the solid particles that have been deposited in the second dust storage chamber from moving to the first dust storage chamber, thereby improving the dust collection effect of the second dust storage chamber.

[0029] In a second aspect, the present application provides a cleaning device, comprising a main body and a dust cup structure provided in the first aspect of the claim above, wherein the dust cup structure is connected to the main body.

[0030] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the dust cup structure and cleaning equipment provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 A schematic diagram of the structure of the dust cup provided in an embodiment of the present application;

[0033] Figure 2 Schematic diagram of the internal structure of the dust cup structure provided in the embodiment of the present application Figure 1 ;

[0034] Figure 3 An internal structure diagram of the dust cup structure provided by the embodiment of the present application Figure 2

[0035] Figure 4 An internal structure diagram of the dust cup structure provided by the embodiment of the present application Figure 3

[0036] Figure 4 An internal structure diagram of the dust cup structure provided by the embodiment of the present application Figure 6

[0037] Figure 5 An internal structure diagram of the dust cup structure provided by the embodiment of the present application Figure 7

[0038] Figure 6 A partial enlarged view of the dotted line circle in FIG. 8. Figure 1

[0039] Legend of reference signs:

[0040] 100-first cup body; 110-dust discharging port; 200-cyclone barrel; 210-air outlet cavity; 220-first air outlet; 230-first filter screen; 240-second filter screen; 300-separation cavity; 400-second cup body; 410-air inlet; 420-second air outlet; 430-mounting cavity; 440-baffle; 500-dust storage cavity; 510-first dust storage cavity; 520-second dust storage cavity; 600-first filter assembly; 700-second filter assembly; 800-air guide assembly; 810-air guide member; 811-air guide surface; 812-first air guide part; 813-second air guide part; 820-supporting rib; 900-baffle. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in combination with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference signs represent the same or similar components or components with the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below in combination with the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below in combination with the drawings.

[0042] ​​​​​In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or indirect connection through an intermediate medium, or internal communication of two elements, or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0043] In the description of the application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0044] The terms "first", "second", "third" (if any) in the specification and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.

[0045] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or display including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or displays.

[0046] In the related art, household cleaning devices such as vacuum cleaners can include a main machine and a dust collection assembly, the main machine has a suction assembly, the negative pressure generated by the suction assembly can collect dust and other impurities on the ground into the dust collection assembly. The dust collection assembly includes a dust cup and a filter screen, the filter screen is in a cylindrical shape and is arranged in the dust cup, thereby forming a separation chamber between the dust cup and the filter screen, the dust cup has an air inlet and an air outlet, so that the airflow enters from the air inlet and rotates in the separation chamber, thereby performing centrifugal separation, and the separated airflow passes through the filter screen and is discharged from the air outlet. The dust and other particulate matter separated by centrifugal separation is deposited at the bottom of the dust cup.

[0047] However, the filter screen is easily clogged by solid particulate matter, and the separation efficiency of the dust collection assembly is low.

[0048] Therefore, the embodiments of the present application provide a dust cup structure and a cleaning device, a ratio of a caliber d of the cyclone barrel to a caliber D of the first cup body is less than or equal to 1 / 2, so that the fluid mixed with the solid and the liquid rotates around the circumference of the cyclone chamber after entering the separation chamber, and the fluid rotates away from the periphery of the first filter screen, and then the solid is separated, so as to avoid the solid from blocking the first filter screen, and improve the separation effect of the dust cup structure.

[0049] Referring to Figures 1 to 4 The embodiments of the present application provide a cleaning device, the cleaning device includes a host and a dust cup structure, and the dust cup structure is connected with the host. The host can provide suction force for the cleaning device, so as to suck away the dust and other particulate matters on the surface to be cleaned, and the dust cup assembly can separate and collect the dust.

[0050] The cleaning device can be a vacuum cleaner, a scrubber or other household cleaning device, and the embodiments of the present application do not limit the same.

[0051] On the basis of the above embodiments, the embodiments of the present application further provide a dust cup structure, the dust cup structure includes a first cup body 100 and a cyclone barrel 200, the cyclone barrel 200 is connected with the first cup body 100, and the cyclone barrel 200 is located in the first cup body 100, a separation chamber 300 is defined between the first cup body 100 and the cyclone barrel 200, the cyclone barrel 200 has an air outlet chamber 210, one end of the cyclone barrel 200 has a first air outlet 220, the first air outlet 220 is in communication with the air outlet chamber 210, a first filter screen 230 is arranged on the side wall of the cyclone barrel 200, and the first filter screen 230 is in communication with the separation chamber 300 and the air outlet chamber 210.

[0052] The caliber d of the cyclone barrel 200 and the caliber D of the first cup body 100 satisfy d / D≤1 / 2.

[0053] Referring to Figures 1 to 6 In the embodiments, the separation chamber 300 is formed between the outer wall of the cyclone barrel 200 and the inner wall of the first cup body 100, so that the mixed fluid entering the dust cup structure is centrifugally separated in the separation chamber 300, and then the large-particle solid in the mixed fluid is separated out, the inner wall of the cyclone barrel 200 forms the air outlet chamber 210, and one end of the cyclone barrel 200 is open to form the first air outlet 220, so that the gas separated primarily flows along the air outlet chamber 210 and the first air outlet 220 in sequence and then is discharged. It can be understood that the separation chamber 300 can be arranged around the outer circumferential side of the cyclone barrel 200, so that the separation chamber 300 is a circular annular chamber, wherein the caliber d of the cyclone barrel 200 can be regarded as the inner diameter of the separation chamber 300, and the caliber D of the first cup body 100 can be regarded as the outer diameter of the separation chamber 300.

[0054] When the fluid enters the separation cavity 300 under the suction of the host, the fluid can rotate around the cyclone 200 as the center of rotation, and rotate around the circumference of the cyclone 200, thereby causing the fluid to generate a centrifugal force. At the same time, due to the relatively large mass of the large-particle solid compared to the mass of the small-particle solid, the gravity of the large-particle solid is relatively large. In this way, under the joint action of the centrifugal force and the gravity, the large-particle solid in the mixed fluid can be separated out. The separated gas can pass through the first filter screen 230 into the air outlet cavity 210 and flow out from the first air outlet 220.

[0055] In order to avoid the first filter screen 230 being blocked due to incomplete separation of the large-particle solid, in the embodiment, the ratio of the diameter d of the cyclone 200 to the diameter D of the first cup body 100 is less than or equal to 1 / 2, that is, the diameter d of the cyclone 200 is less than or equal to half of the diameter D of the first cup body 100.

[0056] In this way, due to the inertia of the fluid moving away from the center of rotation, the fluid can rotate away from the periphery of the cyclone 200, rather than rotating close to the inner periphery of the cyclone 200, so as to avoid the large-particle solid flowing directly to the first filter screen 230 without being subjected to centrifugal separation, thereby avoiding the first filter screen 230 being blocked by the solid. Moreover, the centrifugal force F = mω 2 r, when the rotation radius r is larger, the corresponding centrifugal force F is larger. Therefore, when the fluid rotates away from the periphery of the cyclone 200, the centrifugal force can be increased, thereby improving the dust-gas separation effect of the separation cavity 300.

[0057] It should be noted that the cross sections of the cyclone 200 and the first cup body 100 can both be circular. At this time, the diameter d of the cyclone 200 is the diameter of the cyclone 200, and the diameter D of the first cup body 100 can be the diameter of the first cup body 100. Alternatively, the cross sections of the cyclone 200 and the first cup body 100 can both be elliptical. At this time, the diameter d of the cyclone 200 can be the average diameter of the cyclone 200, and the diameter D of the first cup body 100 can be the average diameter of the first cup body 100.

[0058] wherein the rotation radius r = (D-d) / 2. In this way, when the diameter d of the cyclone 200 is small and the diameter D of the first cup body 100 is large, the rotation radius r can be increased, thereby increasing the centrifugal force F, so as to improve the dust-gas separation effect of the separation cavity 300.

[0059] The dust cup structure provided by the embodiment comprises a first cup body 100, a cyclone barrel 200, and a separation cavity 300. The cyclone barrel 200 comprises an air outlet cavity 210, a first air outlet 220, and a first filter screen 230. The first cup body 100 and the cyclone barrel 200 are arranged to jointly form the separation cavity 300. The separation cavity 300 is arranged to perform primary separation on fluid entering the dust cup structure. The air outlet cavity 210 and the first air outlet 220 are arranged to allow separated gas to flow out. The first filter screen 230 is arranged to communicate the air outlet cavity 210 and the separation cavity 300, so that the gas is discharged from the separation cavity 300 and the solid is intercepted in the separation cavity 300. The diameter d of the cyclone barrel 200 and the diameter D of the first cup body 100 satisfy d / D≤1 / 2. After the fluid enters the separation cavity 300, the fluid rotates away from the first filter screen 230 under the action of inertia, so that the solid in the fluid does not block the first filter screen 230. In addition, d / D≤1 / 2 can increase the rotation radius of the fluid, thereby increasing the centrifugal force of the fluid, and improving the dust-gas separation effect of the dust cup structure.

[0060] In a possible implementation, the diameter D of the first cup body 100 is greater than or equal to 80 mm. And / or, the distance between the inner circumferential wall of the first cup body 100 and the outer circumferential wall of the cyclone barrel 200 is greater than or equal to 20 mm.

[0061] That is, the diameter D of the first cup body 100 can be greater than or equal to 80 mm, so that the diameter D of the first cup body 100 is large enough, and the outer diameter of the separation cavity 300 is large enough, so that the fluid rotates away from the first filter screen 230. The distance between the inner circumferential wall of the first cup body 100 and the outer circumferential wall of the cyclone barrel 200 can be greater than or equal to 20 mm, so that the first cup body 100 is far enough from the cyclone barrel 200, so that the fluid rotates away from the first filter screen 230. The diameter D of the first cup body 100 can be greater than or equal to 80 mm, and the distance between the inner circumferential wall of the first cup body 100 and the outer circumferential wall of the cyclone barrel 200 can be greater than or equal to 20 mm.

[0062] For example, the diameter D of the first cup body 100 can be any one of 80 mm, 82 mm, 84 mm, 85 mm, or within any two ranges. The distance between the inner circumferential wall of the first cup body 100 and the outer circumferential wall of the cyclone barrel 200 can be any one of 20 mm, 22 mm, 23 mm, 25 mm, or within any two ranges.

[0063] Reference Figure 5As shown, in one possible implementation, the dust cup structure further comprises a second cup body 400, the first cup body 100 is connected in the second cup body 400, and a dust storage cavity 500 is defined between the second cup body 400 and the first cup body 100. The first cup body 100 has a dust discharge port 110, the second cup body 400 has an air inlet 410 and a second air outlet 420, the air inlet 410 is located on the side wall of the second cup body 400, and the second air outlet 420 is located at one end of the second cup body 400.

[0064] The air inlet 410 is in communication with the separation cavity 300, the dust discharge port 110 is in communication between the separation cavity 300 and the dust storage cavity 500, and the air outlet cavity 210, the first air outlet 220 and the second air outlet 420 are sequentially in communication.

[0065] The second cup body 400 and the first cup body 100 can be nested inside and outside, and the second cup body 400 can be coaxially arranged with the first cup body 100. Alternatively, the first cup body 100 can be arranged in the second cup body 400, and the first cup body 100 and part of the second cup body 400 can also be arranged side by side. At this time, in order to reduce the processing cost and make the structure more compact, the first cup body 100 and the second cup body 400 can reuse part of the cup wall.

[0066] For example, referring to Figure 5 As shown, in the radial direction of the cyclone barrel 200, the first cup body 100 and the second cup body 400 are arranged side by side, the first cup body 100 and the second cup body 400 reuse part of the side wall, the cyclone barrel 200 and the first cup body 100 are arranged in a nested manner inside and outside, the cyclone barrel 200 and the first cup body 100 reuse part of the bottom wall, the inner wall of the second cup body 400 and the outer wall of the first cup body 100 form the dust storage cavity 500, which can be used to store separated dust and other solid particles, the outer wall of the cyclone barrel 200 and the inner wall of the first cup body 100 form the separation cavity 300, so that the mixed fluid is centrifuged in the separation cavity 300, the inner wall of the cyclone barrel 200 forms the air outlet cavity 210, the common side wall of the first cup body 100 and the second cup body 400 has the air inlet 410, the side wall of the first cup body 100 has the dust discharge port 110, and one end of the cyclone barrel 200 is open to form the first air outlet 220.

[0067] In this way, the fluid enters the separation cavity 300 through the air inlet 410, can rotate away from the first filter screen 230 around the circumference of the cyclone barrel 200, and further separates the solid particles in the fluid in the process. After that, the separated gas can pass through the first filter screen 230 into the air outlet cavity 210, and then sequentially flow out from the first air outlet 220 and the second air outlet 420, while the solid particles are intercepted by the first filter screen 230 in the separation cavity 300 and enter the dust storage cavity 500 through the dust discharge port 110, and then deposit in the dust storage cavity 500.

[0068] For example, referring to Figure 1As shown in FIG. 1, in one possible implementation, the cyclone barrel 200 is provided with a second filter screen 240 at an end thereof away from the first air outlet 220, and the second filter screen 240 is in communication with the air outlet cavity 210 and the dust storage cavity 500.

[0069] In this way, the fluid entering the separation cavity 300 through the air inlet 410 can rotate away from the first filter screen 230 in the circumferential direction of the cyclone barrel 200, thereby separating solid particles in the fluid. Then, part of the separated gas can pass through the first filter screen 230 into the air outlet cavity 210, and then sequentially flow out from the first air outlet 220 and the second air outlet 420. Part of the separated gas can carry the solid particles into the dust storage cavity 500 from the dust discharge port 110, and cause the dust and other solid particles to deposit at the bottom of the dust storage cavity 500, thereby improving the dust collection effect of the dust cup structure. The gas can pass through the second filter screen 240, and then sequentially flow out from the air outlet cavity 210, the first air outlet 220 and the second air outlet 420.

[0070] In a specific arrangement, the ventilation area of the first filter screen 230 can be greater than the ventilation area of the second filter screen 240, thereby causing most of the gas to flow out through the first filter screen 230, so as to shorten the flow path of the gas, thereby avoiding reduction of the suction force of the dust cup structure.

[0071] Referring to Figure 2 , Figure 5 , Figure 6 and Figure 1 As shown in some embodiments, the dust cup structure further comprises a first filter assembly 600, and the first cup body 100 is provided with a mounting cavity 430. The dust storage cavity 500 and the mounting cavity 430 are located at two ends of the second cup body 400. The separation cavity 300, the air outlet cavity 210, the first air outlet 220, the mounting cavity 430 and the second air outlet 420 are sequentially in communication, and the first filter assembly 600 is arranged in the mounting cavity 430.

[0072] It should be noted that d / D≤1 / 2 can cause the fluid entering the separation cavity 300 to rotate away from the first filter screen 230, and improve the centrifugal force, thereby separating large-particle solids, while small-particle dust can pass through the first filter screen 230 or the second filter screen 240 together with the gas. Therefore, the first filter assembly 600 can be arranged on the flow path of the fluid, thereby performing secondary filtration on the gas, thereby improving the filtration effect of the dust cup structure, so as to avoid small-particle solid particles from entering the main machine of the cleaning device, thereby avoiding dust return of the cleaning device.

[0073] Continuing to refer to Figure 2 , Figure 5 , Figure 6 and Figure 6As shown, in a possible implementation, the dust cup structure further comprises a second filtering assembly 700, the second filtering assembly 700 is arranged in the mounting cavity 430, and the first filtering assembly 600 is located on one side of the second filtering assembly 700 close to the dust storage cavity 500.

[0074] In this way, the cyclone barrel 200 can perform primary separation filtering on the fluid, the first filtering assembly 600 can perform secondary separation filtering on the fluid, and the second filtering assembly 700 can perform tertiary separation filtering on the fluid, and then the fluid is discharged from the second air outlet 420 and enters the main machine, so that multi-stage filtering and separation can improve the filtering effect of the dust cup structure, thereby avoiding dust and the like from entering the main machine.

[0075] Referring to Figure 7 With Figure 7 As shown, in some embodiments, the dust cup structure further comprises an air guide assembly 800, the air guide assembly 800 is arranged in the first air outlet 220, and the air guide assembly 800 comprises a flow guide piece 810, the flow guide piece 810 is connected with the cyclone barrel 200 or the second cup body 400, and the flow guide piece 810 has a flow guide surface 811 on the side away from the second air outlet 420, so as to guide the fluid to flow in the radial direction of the cyclone barrel 200.

[0076] In this way, the fluid flowing out of the first air outlet 220 flows in the axial direction of the cyclone barrel 200, and after being guided by the flow guide surface 811, the flow direction of the fluid can be changed from the axial direction of the cyclone barrel 200 to the radial direction of the cyclone barrel 200, so that the fluid uniformly flows to each part of the first filtering assembly 600 and passes through the first filtering assembly 600 at a relatively uniform flow rate, thereby improving the filtering and separation effect of the first filtering assembly 600.

[0077] Referring to Figure 7 As shown, in a possible implementation, the air guide assembly 800 further comprises a plurality of support ribs 820, the plurality of support ribs 820 are arranged at intervals in the circumferential direction of the flow guide piece 810, and the support ribs 820 connect the flow guide piece 810 and the second cup body 400.

[0078] It can be understood that the second cup body 400 can comprise a partition plate 440 located between the mounting cavity 430 and the dust storage cavity 500, thereby preventing solid particulate matters in the dust storage cavity 500 from entering the mounting cavity 430, the support ribs 820 can connect the flow guide piece 810 to the partition plate 440, thereby connecting the flow guide piece 810 to the second cup body 400 through the support ribs 820. The support ribs 820, the flow guide piece 810 and the first air outlet 220 can define a flow guide channel, and the air outlet cavity 210 and the mounting cavity 430 are communicated through the flow guide channel, thereby enabling the fluid in the air outlet cavity 210 to flow to the mounting cavity 430 through the flow guide channel.

[0079] Referring to Figure 6As shown, in a specific implementation, the flow guide 810 includes a first flow guide part 812 and a second flow guide part 813 connected to each other, the first flow guide part 812 is in a conical shape, and an end of the first flow guide part 812 close to the second air outlet 420 is larger than an end of the first flow guide part 812 away from the second air outlet 420.

[0080] The second flow guide part 813 is located at the end of the first flow guide part 812 towards the second air outlet 420, and the second flow guide part 813 is folded towards the outside of the first flow guide part 812.

[0081] In this way, the flow guide surface 811 formed at the side of the flow guide 810 away from the mounting cavity 430 is a curved surface, and the flow guide surface 811 gradually changes the flow direction of the fluid from the axial direction of the cyclone barrel 200 to the radial direction of the cyclone barrel 200, rather than suddenly changing the flow direction, thereby reducing the flow resistance of the fluid, and making the fluid flow more smoothly.

[0082] Referring to Figure 5 As shown, in a possible implementation, the dust cup structure further includes a baffle 900, the bottom wall of the cyclone barrel 200 is connected to the bottom wall of the first cup body 100, and the baffle 900 is connected to the end of the first cup body 100 away from the first air outlet 220.

[0083] The dust storage cavity 500 includes a first dust storage cavity 510 and a second dust storage cavity 520 connected to each other, the first dust storage cavity 510 is located at the side of the separation cavity 300, the second dust storage cavity 520 is located at the bottom of the separation cavity 300 away from the first air outlet 220, and the baffle 900 is arranged between the first dust storage cavity 510 and the second dust storage cavity 520.

[0084] In this way, when the solid particles are deposited at the bottom of the second dust storage cavity 520, the baffle 900 arranged between the first dust storage cavity 510 and the second dust storage cavity 520 can prevent the solid particles deposited in the second dust storage cavity 520 from moving to the first dust storage cavity 510, thereby avoiding the solid particles flowing back to the separation cavity 300 through the ash discharge port 110, and improving the dust collection effect of the dust storage cavity 500.

[0085] Referring to ​ As shown, when the bottom of the cyclone barrel 200 is provided with the second filter screen 240, the separated solid particles enter the first dust storage cavity 510 through the ash discharge port 110 under the action of the centrifugal force, then the solid particles can move to the second dust storage cavity 520 under the driving of the gas, thereby making the solid particles mainly deposited at the bottom of the second dust storage cavity 520, and after the second dust storage cavity 520 is filled, the first dust storage cavity 510 can continue to collect dust, thereby improving the space utilization rate of the dust storage cavity 500.

[0086] In some embodiments, the distance between the end of the baffle 900 away from the first cup body 100 and the bottom wall of the second cup body 400 away from the first air outlet 220 is less than or equal to 25mm.

[0087] It can be understood that when the distance between the end of the baffle 900 away from the first cup body 100 and the bottom wall of the second cup body 400 away from the first air outlet 220 is large, the blocking effect of the baffle 900 on solid particles is limited, and therefore, the distance can be controlled within 25mm, so that the baffle 900 can effectively prevent the solid particles that have been deposited in the second dust storage cavity 520 from moving to the first dust storage cavity 510, thereby improving the dust collection effect of the second dust storage cavity 520.

[0088] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part 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 cup structure, characterized in that: include: First cup body (100); A cyclone barrel (200), the cyclone barrel (200) is connected to the first cup body (100), and the cyclone barrel (200) is located in the first cup body (100), a separation chamber (300) is defined between the first cup body (100) and the cyclone barrel (200), an air outlet chamber (210) is provided in the cyclone barrel (200), one end of the cyclone barrel (200) is provided with a first air outlet (220), the first air outlet (220) is communicated with the air outlet chamber (210), a side wall of the cyclone barrel (200) is provided with a first filter (230), the first filter (230) communicates the separation chamber (300) with the air outlet chamber (210); The diameter d of the cyclone barrel (200) and the diameter D of the first cup body (100) satisfy the relationship: d / D≤1 / 2.

2. The dust cup structure according to claim 1, characterized in that: The diameter D of the first cup body (100) is greater than or equal to 80 mm; And / or, the distance between the inner peripheral wall of the first cup body (100) and the outer peripheral wall of the cyclone barrel (200) is greater than or equal to 20 mm.

3. The dust cup structure according to claim 1 or 2, characterized in that: The invention also includes a second cup body (400), wherein the first cup body (100) is connected to the inside of the second cup body (400), a dust storage chamber (500) is defined between the second cup body (400) and the first cup body (100), the first cup body (100) has a dust outlet (110), and the second cup body (400) has an air inlet (410) and a second air outlet (420), wherein the air inlet (410) is located on the side wall of the second cup body (400), and the second air outlet (420) is located at one end of the second cup body (400); The air inlet (410) is connected to the separation chamber (300), the dust removal port (110) is connected to the separation chamber (300) and the dust storage chamber (500), and the air outlet chamber (210), the first air outlet (220) and the second air outlet (420) are connected in sequence.

4. The dust cup structure according to claim 3, characterized in that: A second filter (240) is provided at one end of the cyclone barrel (200) facing away from the first air outlet (220), and the second filter (240) is connected to the air outlet cavity (210) and the dust storage cavity (500).

5. The dust cup structure according to claim 3, characterized in that: The invention also includes a first filter assembly (600), the first cup body (100) has a mounting cavity (430), the dust storage cavity (500) and the mounting cavity (430) are located at two ends of the second cup body (400), the separation cavity (300), the air outlet cavity (210), the first air outlet (220), the mounting cavity (430) and the second air outlet (420) are connected in sequence, and the first filter assembly (600) is arranged in the mounting cavity (430).

6. The dust cup structure according to claim 5, characterized in that: It also includes a second filter assembly (700), the second filter assembly (700) being arranged in the installation cavity (430), and the first filter assembly (600) being located on a side of the second filter assembly (700) close to the dust storage cavity (500).

7. The dust cup structure according to claim 3, characterized in that: The invention also includes an air guide assembly (800), wherein the air guide assembly (800) is arranged at the first air outlet (220), and the air guide assembly (800) includes a flow guide member (810), wherein the flow guide member (810) is connected to the cyclone barrel (200) or the second cup body (400), and the flow guide member (810) has a flow guide surface (811) on the side facing away from the second air outlet (420) to guide the fluid to flow radially along the cyclone barrel (200).

8. The dust cup structure according to claim 7, characterized in that: The air guide assembly (800) further comprises a plurality of support ribs (820), wherein the plurality of support ribs (820) are arranged at intervals along the circumference of the flow guide (810), and the support ribs (820) connect the flow guide (810) and the second cup body (400).

9. The dust cup structure according to claim 7 or 8, characterized in that: The air guide (810) comprises a first air guide portion (812) and a second air guide portion (813) connected to each other, the first air guide portion (812) being conical, and an end of the first air guide portion (812) close to the second air outlet (420) being larger than an end of the first air guide portion (812) facing away from the second air outlet (420); The second air guide portion (813) is located at one end of the first air guide portion (812) facing the second air outlet (420), and the second air guide portion (813) is folded toward the outside of the first air guide portion (812).

10. The dust cup structure according to claim 3, characterized in that: It also includes a baffle (900), the bottom wall of the cyclone barrel (200) is connected to the bottom wall of the first cup body (100), and the baffle (900) is connected to an end of the first cup body (100) facing away from the first air outlet (220); The dust storage chamber (500) includes a first dust storage chamber (510) and a second dust storage chamber (520) that are interconnected, wherein the first dust storage chamber (510) is located on the side of the separation chamber (300), and the second dust storage chamber (520) is located at the bottom of the separation chamber (300) away from the first air outlet (220), and the baffle (900) is blocked between the first dust storage chamber (510) and the second dust storage chamber (520).

11. The dust cup structure according to claim 10, characterized in that: The distance between the end of the baffle (900) facing away from the first cup body (100) and the bottom wall of the second cup body (400) facing away from the first air outlet (220) is less than or equal to 25 mm.

12. A cleaning device, characterized in that: It comprises a host and a dust cup structure as described in any one of claims 1 to 11, and the dust cup structure is connected to the host.

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