Cleaning device

Abstract

The application discloses a cleaning device. The cleaning device comprises a machine body, a floor brush mounted on the machine body, a negative pressure source and a recovery bucket mounted on the machine body, an inlet of the recovery bucket being communicated with the floor brush, an outlet being communicated with the negative pressure source, a sealing element being mounted at the outlet, the sealing element comprising a first sealing lip and a second sealing lip sealing a fluid channel between the outlet and the negative pressure source, the second sealing lip being in front of the first sealing lip in a mounting direction of the recovery bucket, the first sealing lip and the second sealing lip extending away from the mounting direction, the second sealing lip comprising a sealing reinforcement body, the sealing reinforcement body maintaining the sealing function of the second sealing lip when air is drawn from the recovery bucket, and the sealing element further comprising a filter assembly in the fluid channel and surrounded by the sealing element. According to the cleaning device, the first sealing lip and the second sealing lip will not be reversed and raised when the recovery bucket is mounted, and the first sealing lip and the second sealing lip both maintain their respective sealing functions when air is drawn from the recovery bucket.

Description

Technical Field

[0001] This application relates to the field of household cleaning technology, and more particularly to a cleaning device. Background Technology

[0002] As people's living standards improve, the use of cleaning devices such as household vacuum cleaners and floor scrubbers is becoming increasingly common. Taking a floor scrubber as an example, it typically includes a floor brush, a main body, and a collection bin assembled with the main body. The collection bin is connected to the floor brush through a dust channel, and the collection bin is also connected to the main body through a negative pressure channel. When using the floor scrubber, the main body generates negative pressure to suck dust from the floor into the collection bin through the floor brush.

[0003] The recycling bin is detachably assembled with the machine body. A seal is typically installed between the recycling bin and the machine body to prevent air leakage through the negative pressure channel. For example, in patent application CN111358344A, (as...) Figure 11 As shown, a sealing ring is disclosed between the recycling bin 9 and the main unit 903 to seal the airflow channel 904. For ease of assembly, the sealing ring has a first sealing lip 901 and a second sealing lip 902 facing away from the assembly direction C. However, during the evacuation of the recycling bin 9, the second sealing lip 902 bends towards the airflow channel 904, causing the second sealing lip 902 to separate from the main unit 903 (e.g., ...). Figure 11 In the middle, the curved second sealing lip (902) shown by the dotted line can cause poor sealing of the sealing ring, resulting in poor dust collection performance. Summary of the Invention

[0004] This application provides a cleaning device, comprising: a body, a floor brush mounted on the body and adapted to move on a surface to be cleaned, the body also being equipped with a negative pressure source and a collection bin, the inlet of the collection bin being in fluid communication with the floor brush and the outlet being in fluid communication with the negative pressure source, a seal being installed at the outlet, the seal comprising an elastic first sealing lip and an elastic second sealing lip sealing the fluid channel between the outlet and the negative pressure source, the second sealing lip being in front of the first sealing lip along the installation direction of the collection bin, and the first and second sealing lips extending away from the installation direction, the second sealing lip including a sealing reinforcement, the sealing reinforcement maintaining the sealing effect of the second sealing lip when the collection bin is evacuated, the seal comprising a filter assembly located in the fluid channel and surrounded by the seal.

[0005] In one embodiment, the seal further includes a radially extending base, a first sealing lip and a second sealing lip formed on the base, the second sealing lip including a support portion extending vertically from the base and a sealing portion extending radially inward from the top of the support portion, and a sealing reinforcement on the support portion.

[0006] In one embodiment, the sealing reinforcement is a region of increased local thickness of the support portion, extending from the base to the sealing portion, with the top of the sealing reinforcement connected to the sealing portion.

[0007] In one embodiment, the base includes a radially inwardly extending portion, and the sealing reinforcement includes reinforcing ribs, with a plurality of reinforcing ribs spaced apart at the ends and / or middle of the inner side of the support.

[0008] In one embodiment, the reinforcing rib is configured such that its dimensions gradually decrease in the vertical upward direction.

[0009] In one embodiment, the radial extension length of the sealing portion is between 3.5 mm and 5 mm; the radial extension dimension of the top of the reinforcing rib is between 0.5 mm and 0.8 mm.

[0010] In one embodiment, the sealing reinforcement is configured as a radially outwardly extending elastic flange, the circumferential extension length of which is greater than or equal to the circumferential extension length of the sealing portion, wherein the elastic flange at least partially seals the fluid passage when the recovery tank is evacuated.

[0011] In one embodiment, when the seal is not assembled, the top surface of the seal and the top surface of the first sealing lip are on the same plane, and the elastic flange is below this plane.

[0012] In one embodiment, the seal is quadrilateral, with a first sealing lip forming two opposite sides of the quadrilateral. Between the first and second sealing lips, there are also a third and a fourth sealing lip, which are connected to the first and second sealing lips to form the other two sides of the quadrilateral. The third and fourth sealing lips are also formed on the substrate and extend radially outward relative to the outlet.

[0013] In one embodiment, the seal further includes a rigid support frame having an axially through-hole forming at least a portion of a fluid passage, the seal being disposed on the support frame and surrounding the through-hole, and a filter assembly being disposed in the through-hole.

[0014] In one embodiment, the seal and the support frame are integrated.

[0015] In one embodiment, the recycling bin includes a housing and a bracket mounted on an opening in the housing, the bracket having an opening communicating with the interior of the recycling bin, and a support frame mounted in the opening.

[0016] In one embodiment, a top cover is also mounted on the bracket, and the top cover has a mating hole, in which the seal and the support frame are located.

[0017] The beneficial effects of this application are as follows: According to the cleaning device of this application, both the first sealing lip and the second sealing lip extend away from the installation direction. This prevents the first and second sealing lips from tilting upwards in opposite directions when the recycling bin is assembled onto the machine body, facilitating smooth installation of the recycling bin. Furthermore, when the recycling bin is evacuated, the first sealing lip maintains its sealing function, and the second sealing lip also maintains its sealing function under the action of the sealing reinforcement, ensuring that the required negative pressure is generated inside the recycling bin, guaranteeing that debris can be smoothly sucked into the recycling bin. Attached Figure Description

[0018] Figure 1 A cleaning apparatus according to one embodiment of this application is schematically shown.

[0019] Figure 2 A recycling bin according to one embodiment of this application is schematically shown.

[0020] Figure 3 The overall structure of the first embodiment of the seal is schematically shown.

[0021] Figure 4 yes Figure 3 Cross-sectional view.

[0022] Figure 5 The overall structure of the second embodiment of the seal is schematically shown.

[0023] Figures 6(a) and 6(b) schematically show Figure 5 The diagram shown illustrates the working principle of the seal.

[0024] Figure 7 The diagram illustrates the state in which the seal and the support frame are fitted together.

[0025] Figure 8 schematically shown Figure 2 The image shows the state of the recycling bin after the lid has been removed.

[0026] Figure 9 The structure of the support is shown schematically.

[0027] Figure 10 The structure of the top cover is shown schematically.

[0028] Figure 11 The diagram illustrates the assembly process of a sealing ring in the prior art. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present application, not the entire structure.

[0030] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are merely used to distinguish between descriptions and have no special meaning.

[0034] In the embodiments of this application, such as Figure 1 As shown, arrow I points "up," and the opposite direction is "down." Figure 2 As shown, the direction of arrow A is the installation direction of the recycling bin. The direction along arrow A is "front", and the direction opposite to arrow A is "back".

[0035] Figure 1 A schematic diagram of a cleaning device 1 according to an embodiment of this application is shown. The cleaning device 1 can be a vacuum cleaner, a floor scrubber, etc.

[0036] like Figure 1 As shown, the cleaning device 1 includes a body 2, on which a floor brush 4 adapted to move on the surface to be cleaned is mounted. Furthermore, a negative pressure source 22 and a collection bin 3 are also mounted on the body 2. The inlet (not shown) of the collection bin 3 is in fluid communication with the floor brush 4, and the outlet 301 is in fluid communication with the negative pressure source 22. Thus, the negative pressure source 22 generates negative pressure within the collection bin 3, thereby drawing dirt from the surface to be cleaned onto the collection bin 3 via the floor brush 4.

[0037] Overall, the body 2 is constructed in a slender rod shape to make the cleaning device 1 more portable. The negative pressure source 22 can be a motor used to evacuate the recycling bin 3. The negative pressure source 22 and the floor brush 4 are well known to those skilled in the art and are irrelevant to the technical problem to be solved, so they will not be described in detail here.

[0038] It should be understood that when the cleaning device 1 is a vacuum cleaner, the recycling bin 3 can be used to store dust, debris, etc. When the cleaning device 1 is a floor scrubber that can spray and suck water, the recycling bin 3 can be used to store wastewater and solid waste carried by the wastewater. Additionally, other structural components, such as a solid-liquid separation device, can be installed inside the recycling bin 3. With a solid-liquid separation device installed, when the recycling bin 3 is used in the floor scrubber, the device can separate the wastewater and solid waste sucked into the recycling bin 3, making it easier for the user to dispose of the waste in the recycling bin 3. Of course, a solid-liquid separation device may not be installed inside the recycling bin 3. Other structures inside the recycling bin 3 are unrelated to the technical problem to be solved and will not be described further here.

[0039] For example Figure 1 As shown, to facilitate the installation of the recycling bin 3, a support structure 20 for supporting the recycling bin 3 is also provided on the body 2. The support structure 20 can be, for example, a receiving cavity or a snap-fit, etc., which will not be described in detail here. The support structure 20 is provided with an air inlet 21 that communicates with the negative pressure source 22, and the outlet 301 of the recycling bin 3 is connected to the air inlet 21 to form a fluid channel 370. A seal 310 is installed at the outlet 301. When using the cleaning device 1, the seal 310 seals the gap between the outlet 301 and the air inlet 21 to prevent air leakage in the fluid channel 370, so as to ensure that the dirt can be smoothly sucked into the recycling bin 3.

[0040] Figure 2 The overall structure of recycling bin 3 is schematically shown. Figure 3 and 4 The structure of one embodiment of the seal 310 is schematically shown. The following is in conjunction with... Figure 2 , 3 4 and 4 are used to describe the recycling bin 3 and the seal 310.

[0041] The recycling bin 3 includes a housing 300, with an outlet 301 being the opening of the housing 300. A seal 310 is installed at the outlet 301. The seal 310 includes a resilient first sealing lip 313 and a resilient second sealing lip 314 that seal the fluid passage 370 between the outlet 301 of the recycling bin 3 and the negative pressure source 22. Along the installation direction A of the recycling bin 300, the second sealing lip 314 is located in front of the first sealing lip 313, and both the first and second sealing lips 313 extend away from the installation direction A. The second sealing lip 314 includes a sealing reinforcement 317, which maintains the sealing effect of the second sealing lip 314 when the recycling bin 3 is evacuated.

[0042] According to the cleaning device 1 of this application, the first sealing lip 313 and the second sealing lip 314 extend in opposite directions to the installation direction A. In other words, the first sealing lip 313 extends radially outward relative to the outlet 301, and the second sealing lip 314 extends radially inward relative to the outlet 301. When the recycling bin 3 is assembled onto the body 2, the recycling bin 3 moves relative to the body 2 along the installation direction A. Since the extension directions of the first sealing lip 313 and the second sealing lip 314 are both opposite to the installation direction A of the housing 300, even if the first sealing lip 313 scrapes against the structure on the body 2, it will not lift up in the opposite direction, which facilitates the smooth installation of the recycling bin 3.

[0043] After the recycling bin 3 is installed onto the body 2, the first sealing lip 313 and the second sealing lip 314 are pressed between the mating surfaces of the housing 300 and the body 2 to seal the fluid passage 370. When the recycling bin 3 is evacuated, the first sealing lip 313 may deform toward the outlet 301, which helps to further improve its sealing effect; the second sealing lip 314 also maintains its sealing effect under the action of the sealing reinforcement 317. In this way, the first sealing lip 313 and the second sealing lip 314 maintain the seal on the fluid passage 370 (e.g., the joint gap between the outlet 301 and the air inlet 21), ensuring that the required negative pressure is generated in the recycling bin 3 (or housing 300), ensuring that debris can be smoothly sucked into the recycling bin 3.

[0044] like Figure 3 and 4As shown, the seal 310 also includes a radially extending base 311, on which a first sealing lip 313 and a second sealing lip 314 are formed. Specifically, the second sealing lip 314 includes a support portion 315 extending vertically from the base 311 and a sealing portion 316 extending radially inward from the top of the support portion 315, with a sealing reinforcement 317 located on the support portion 315. In this structure, the sealing reinforcement 317 increases the strength of the support portion 315 of the second sealing lip 314. When the recovery tank 3 is evacuated, the degree of bending of the support portion 315 is greatly reduced or even eliminated, thus the second sealing lip 314 has a very small degree of bending or even eliminates bending overall, ensuring a good sealing effect of the seal 316 of the second sealing lip 314.

[0045] In one embodiment, the sealing reinforcement 317 is a region where the thickness of the support portion 315 is locally increased. In other words, by increasing the local thickness of the support portion 315, the overall strength of the support portion 315 is improved. This can be easily achieved through injection molding at a low cost. In this case, the sealing reinforcement 317 extends from the base 311 to the sealing portion 316, and the top of the sealing reinforcement 317 is connected to the sealing portion 316. Thus, the sealing reinforcement 317 also supports the sealing portion 316, allowing the sealing portion 316 to deform over a larger range when compressed, thereby improving its sealing effect. In a specific embodiment, the radial extension length of the sealing portion 316 is between 3.5 mm and 5 mm, for example, 3.5 mm, 3.8 mm, 4 mm, 4.2 mm, 4.5 mm, or 5 mm; the radial extension dimension of the top of the sealing reinforcement 317 (or the reinforcing rib described below) is between 0.5 mm and 0.8 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm. If the top radial extension dimension of the sealing reinforcement 317 is too large, the rigidity of the sealing part 316 will be too large, making it difficult for the sealing part 316 and the second sealing lip 314 to be squeezed and deformed when assembling the recycling bin 3, and the recycling bin 3 will also be difficult to install. If the top radial extension dimension of the sealing reinforcement 317 is too small, the support for the sealing part 316 will be insufficient, which is not conducive to improving the sealing effect of the sealing part 316 or the second sealing lip 314.

[0046] In another embodiment, reinforcing fibers may be locally added within the support portion 315 to improve the strength of the support portion 315. This is easily implemented by those skilled in the art and will not be described in detail here.

[0047] Specifically, such as Figure 4As shown, the base 311 includes a radially inwardly extending portion, and the sealing reinforcement 317 is configured as a reinforcing rib 318. Multiple reinforcing ribs 318 are spaced apart at the ends and / or middle of the inner side of the support portion 315. The reinforcing ribs 318 have a simple structure and can be integrally molded with the sealing ring 310 by injection molding, simplifying the manufacturing process. In one specific embodiment, the distance between adjacent reinforcing ribs 318 is between 4 mm and 5 mm, so that the rigidity of the support portion 315 does not become excessive, facilitating the compression deformation of the second sealing lip 314 during assembly of the recycling bin 3. Reinforcing ribs 318 are provided at both ends of the support portion 315. Especially for square seals, the ends of the support portion 135 are more prone to bending; therefore, providing reinforcing ribs 318 at the ends of the support portion 315 can more effectively prevent the second sealing lip 314 from folding or warping.

[0048] For example Figure 3 As shown, the reinforcing rib 318 is configured such that its dimensions gradually decrease along the vertical upward direction. This reinforcing rib 318 can provide good overall support for the support portion 315, thereby reducing the degree of bending of the support portion 315; at the same time, the upper part of the support portion 315 still maintains good flexibility, so that the second sealing lip 314 can be easily pressed together when assembling the recycling bin 3. In a specific embodiment, the reinforcing rib 318 can be constructed into the shape of a frustum, a truncated cone, etc., which will not be described in detail here.

[0049] In another embodiment, the reinforcing rib 318 may also be located at the top and / or middle of the outer side of the support portion 315. In this way, the reinforcing rib 318 can also improve the strength of the support portion 315, reduce or avoid bending of the support portion 31 when the recycling tank 3 is evacuated, and ensure the sealing effect of the second sealing lip 314.

[0050] Figure 5 The overall structure of the seal 310' of the second embodiment is schematically shown. (As...) Figure 5 As shown, the sealing reinforcement 317 is constructed as a radially outward extending elastic flange 319, that is, the extending direction of the elastic flange 319 is the same as the installation direction of the recycling bin 3.

[0051] Figures 6(a) and 6(b) schematically show Figure 5The working principle of the seal 310' shown is as follows: As shown in Figure 6(a), when the recovery tank 3 is not evacuated or the vacuum level inside the recovery tank 3 is low (e.g., less than 3 kPa), the sealing part 316 seals the fluid channel 370 by sealing against the mating structure on the body 2. As shown in Figure 6(b), when the recovery tank 3 is evacuated or the vacuum level inside the recovery tank 3 is high (e.g., greater than or equal to 3 kPa), the support part 315 of the second sealing lip 314 bends toward the fluid channel 370, and the sealing part 316 loses its sealing function; at the same time, the bending of the support part 315 causes the elastic flange 319 to flip and seal against the mating structure on the body 2, thus achieving a sealing function. It should be noted that the initial state of the second sealing lip 314 (i.e., the state shown in Figure 6(a)) is shown in dashed lines in Figure 6(b).

[0052] The circumferential extension length of the flexible flange 319 is greater than or equal to the circumferential extension length of the sealing portion 316. This ensures that the flexible flange 319 can provide a good seal.

[0053] Furthermore, a sealing plane 320 extending along its length is formed on the surface of the elastic flange 319. After the recycling bin 3 is installed on the body 2, the sealing plane 320 is in surface contact with the mating structure (e.g., the load-bearing structure) on the body 2, thereby further improving the sealing effect of the elastic flange 319.

[0054] The flexible flange 319 is integrally formed by injection molding the sealing part 316, the support part 315, and the base 311. The thickness of the flexible flange 319 can be the same as that of the sealing part 316 to facilitate the integral molding of the sealing part 310.

[0055] As shown in Figure 6(a), when the seal 310 is not assembled (e.g., when the recycling bin 3 is not assembled onto the body 2), the top surface of the sealing part 316 and the top surface of the first sealing lip 313 are on the same plane 380, and the elastic flange 319 is below the plane 380. Thus, during the process of installing the recycling bin 3 onto the body 2, the sealing part 316 and the first sealing lip 313 contact the mating parts on the body 2 (e.g., the support structure 20), while the elastic flange 319 is in a lower position and does not contact the mating parts on the body 2. This greatly reduces the probability of the elastic flange 319 folding or lifting (e.g., being scratched by the mating parts on the body 2), making it easier for the user to install the recycling bin 3 and ensuring the sealing effect of the seal 310.

[0056] It should be understood that, in Figure 5 The seal 310' shown can also be provided with, for example Figure 1The reinforcing ribs 318 on the seal 310 are shown. For example, multiple reinforcing ribs may be spaced apart on the inner or outer surface of the support portion 315 of the second sealing lip 314 of the seal 310', which is a feature that those skilled in the art can combine. Figure 3 and Figure 5 It is easily achievable, so I will not go into details here.

[0057] For example Figure 3 As shown in Figure 5, the seals 310 and 310' are quadrilaterals. The first sealing lip 313 and the second sealing lip 314 form two opposite sides of the quadrilateral. Between the first sealing lip 313 and the second sealing lip 314 are a third sealing lip 321 and a fourth sealing lip 322. The third sealing lip 321 and the fourth sealing lip 322 are connected to the first sealing lip 313 and the second sealing lip 314, forming the other two sides of the quadrilateral. The third sealing lip 321 and the fourth sealing lip 322 are formed on the base 311 and extend radially outward relative to the outlet 301. As described above, when assembling the recycling bin 3, the first sealing lip 313 and the second sealing lip 314 will not fold over. Since the third sealing lip 321 and the fourth sealing lip 322 are connected to the first sealing lip 313 and the second sealing lip 314, they will also not fold over or curl upwards. When evacuating the recycling bin 3, as described above, the first sealing lip 313 and the second sealing lip 314 seal the fluid passage 370. Since the third sealing lip 321 and the fourth sealing lip 322 also extend radially outward relative to the outlet 301, they deform towards the outlet 301, which further enhances the sealing effect. Therefore, this type of seal not only facilitates the assembly of the recycling bin 3, but also ensures that the required negative pressure is generated within the recycling bin 3 (or housing 300) during evacuation, guaranteeing that debris can be smoothly drawn into the recycling bin 3.

[0058] In another embodiment, the seal can also be of other shapes, as long as it conforms to the shape of the outlet 301, such as circular or elliptical. When the seal is circular, it may only have a first sealing lip 313 and a second sealing lip 314. The first sealing lip 313 and the second sealing lip 314 are arc-shaped and connected at their ends to form a circle surrounding the outlet 301. The elliptical seal 310 is similar to the circular one and will not be described further here.

[0059] The seal 310 also includes a filter assembly 332. The filter assembly 332 is located in the fluid channel 370 and is surrounded by the seal 310. The filter assembly 332 may be, for example, a HEPA filter. The filter assembly 332 is used to filter dust and / or water droplets carried by the airflow. Preferably, the fluid channel 370 may be configured to extend in a tortuous manner, which also helps to separate dust and / or water droplets entrained by the airflow from the airflow, thereby reducing the load on the filter assembly 332 and reducing the frequency of maintenance or replacement of the filter assembly 332.

[0060] In a specific embodiment, such as Figure 7 As shown, the seal 310 includes a rigid support frame 330. An axially through-hole 381 is formed in the support frame 330, creating at least a portion of the fluid channel 370. The seal 310 is disposed on the support frame 330 and surrounds the through-hole 381, and the filter assembly 332 is disposed within the through-hole 381. Specifically, the support frame 330 holds the seal 310 in a desired shape, for example, the support frame 330 is rectangular, thereby holding the seal 310 as a whole in a rectangular shape. Furthermore, this facilitates the assembly and disassembly of the seal 310 and the support frame 330 as a whole.

[0061] A handle 340 is provided on the support frame 330 to further facilitate the assembly and disassembly of the support frame 330 (including the seal 310).

[0062] In one embodiment, the seal 310 is integral with the support frame 330. For example, the seal 310 can be formed on the support frame 330 by an overmolding process. The overmolding process is well known to those skilled in the art and will not be described in detail here. In this case, the substrate 311, the first sealing lip 313, and the second sealing lip 314 can be made of the same elastic material to simplify the manufacturing (e.g., overmolding) process.

[0063] like Figure 8 and 9 As shown, a bracket 331 is provided at the opening of the housing 300 of the recycling bin 3, and the bracket 331 has an opening 334 communicating with the interior of the recycling bin 3. A support frame 330 is installed in the opening 334. In one embodiment, the support frame 330 and the bracket 331 can be connected by screws. In addition, the opening 334 on the bracket 331 is smaller than the opening of the housing 300, which allows the support frame 330 and the seal 310 to be constructed in a smaller size, facilitating the manufacturing and assembly of the support frame 330 and the seal 310.

[0064] Various other devices can also be installed on the bracket 331 to enable the cleaning device 1 to perform more functions. For example, when the cleaning device 1 is used as a floor scrubber, a liquid level sensor (not shown in the figure) can be installed on the bracket 331 to facilitate monitoring of the liquid level in the recycling bin 3 during use of the cleaning device 1. As another example, a cyclone separation system (not shown in the figure) can also be installed in the opening 334 of the bracket 331, and the cyclone separation system communicates with the interior of the housing 300 and the through hole 381 of the support frame 330. The cyclone separation system can further separate debris and / or water droplets carried by the airflow from the housing 300 to achieve further separation. Other devices installed on the bracket 331 are not related to solving the technical problem of this application and will not be described in detail here.

[0065] For example Figure 2 and Figure 10 A top cover 333 is also installed on the bracket 331. The top cover 333 has a mating hole 335, within which the seal 310 and the support frame 330 are located. The top cover 333 serves to limit and guide the support frame 330 and the seal 310 during assembly, facilitating user assembly. Additionally, the top cover 333 has a groove 336 corresponding to the handle 340. When assembling or disassembling the support frame 330 and / or the seal 310, the groove 336 creates an operating space to facilitate user operation.

[0066] The following describes the disassembly, assembly, and use of the recycling bin 3 equipped with the seal 310.

[0067] When installing the recycling bin 3, lift the recycling bin 3 upwards and push it along the installation direction A toward the mating structure (e.g., the support structure 20) on the body 2. The second sealing lip 314 of the seal 310 is in front of the installation direction A, so the second sealing lip 314 contacts the body 2 first. Subsequently, the first sealing lip 313 also contacts the body 2. Both the first sealing lip 313 and the second sealing lip 314 extend away from the installation direction A, so there is no folding. After the recycling bin 3 is installed in place, the first sealing lip 313 and the second sealing lip 314 are pressed between the mating surfaces of the housing 300 and the body 2 to seal the fluid passage 370.

[0068] When the recycling bin 3 is evacuated, the air pressure inside the recycling bin 3 decreases. Under the action of external atmospheric pressure, the first sealing lip 313 may deform toward the outlet 301, which helps to further improve the sealing effect. The second sealing lip 314 also maintains its sealing effect under the action of the sealing reinforcement 317 (as described above).

[0069] When disassembling the recycling bin 3, pull and rotate the recycling bin 3 away from the installation direction A and away from the body 2. The first sealing lip 313 and the second sealing lip 314 separate from the mating mechanism of the body 2 in the vertical direction, so as not to be scraped by the body 2 and flipped or lifted.

[0070] Obviously, the above embodiments of this application are merely examples for clear illustration and are not intended to limit the implementation of this application. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the scope of protection of this application. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A cleaning device, characterized in that, include: fuselage (2) A floor brush (4) mounted on the body (2) and adapted to move on the surface to be cleaned. The body (2) is also equipped with a negative pressure source (22) and a recycling bin (3). The inlet of the recycling bin (3) is in fluid communication with the floor brush (4), and the outlet (301) is in fluid communication with the negative pressure source (22). A seal (310) is installed at the outlet (301). The seal (310) includes a base (311), an elastic first sealing lip (313) and an elastic second sealing lip (314) sealing the fluid passage (370) between the outlet (301) and the negative pressure source (22). Along the installation direction of the recycling bin (3), the second sealing lip (314) is in front of the first sealing lip (313), and the first sealing lip (313) and the second sealing lip (314) extend away from the installation direction. The second sealing lip (314) includes a support portion (315) extending vertically from the base (311), a sealing portion (316) extending radially inward from the top end of the support portion (315), and an elastic flange (319) extending radially outward from the top end of the support portion (315). When the recycling bin (3) is not evacuated, the top surface of the sealing part (316) and the top surface of the first sealing lip (313) are on the same plane (380), and the elastic flange (319) is below the plane (380). The sealing part (316) maintains the sealing function of the second sealing lip (314). When the recycling bin (3) is evacuated, the top surface of the elastic flange (319) and the top surface of the first sealing lip (313) are on the same plane (380), and the sealing part (316) is below the plane (380). The elastic flange (319) maintains the sealing function of the second sealing lip (314). The seal (310) also includes a filter assembly (332) which is located in the fluid channel (370) and surrounded by the seal (310).

2. The cleaning device according to claim 1, characterized in that, The seal (310) also includes a radially extending base (311), on which the first sealing lip (313) and the second sealing lip (314) are formed.

3. The cleaning device according to claim 2, characterized in that, The circumferential extension length of the elastic flange (319) is greater than or equal to the circumferential extension length of the sealing part (316).

4. The cleaning device according to claim 3, characterized in that, The seal (310) is quadrilateral, with the first sealing lip (313) and the second sealing lip (314) forming two opposite sides of the quadrilateral. Between the first sealing lip (313) and the second sealing lip (314) are a third sealing lip (321) and a fourth sealing lip (322), both of which are connected to the first sealing lip (313) and the second sealing lip (314) to form the other two sides of the quadrilateral. The third sealing lip (321) and the fourth sealing lip (322) are also formed on the substrate (311) and extend radially outward relative to the outlet (301).

5. The cleaning device according to claim 1, characterized in that, The seal (310) further includes a rigid support frame (330) having an axially through hole (381) forming at least a portion of the fluid channel (370). The seal (310) is disposed on the support frame (330) and surrounds the through hole (381), and the filter assembly (332) is disposed in the through hole (381).

6. The cleaning device according to claim 5, characterized in that, The sealing element (310) and the support frame (330) form an integral unit.

7. The cleaning device according to claim 5, characterized in that, The recycling bin (3) includes a box (300) and a bracket (331) installed on the opening of the box (300). The bracket (331) has an opening (334) communicating with the interior of the recycling bin (3). The support frame (330) is installed in the opening (334).

8. The cleaning device according to claim 7, characterized in that, A top cover (333) is also installed on the bracket (331), and a mating hole (335) is constructed on the top cover (333). The sealing element (310) and the support frame (330) are located in the mating hole (335).

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