Dust collection bucket and cleaning system

Abstract

A dust collection bucket of the present application includes: a dust collection bucket housing, a fan, and a fan bracket. The fan bracket is installed inside the dust collection bucket housing, the fan is installed inside the fan bracket. The first end of the fan bracket cooperates with the dust collection bucket housing to form a first layer of air duct, and the second end of the fan bracket cooperates with the dust collection bucket housing to form a second layer of air duct. The air flow formed by the fan sequentially flows into the first layer of air duct and the second layer of air duct for sound absorption, and then is discharged from the exhaust port of the dust collection bucket housing. Different from the existing method of directly arranging multiple layers of sound-absorbing cotton around the fan, the present application utilizes the structures of the first layer of air duct and the second layer of air duct. The sound waves of the air flow will gradually weaken after being reflected in the first layer of air duct and the second layer of air duct, thereby achieving a good sound-absorbing effect, and solving the problems in the prior art that the method of wrapping multiple layers of sound-absorbing cotton at the fan will affect the air volume of the dust collection bucket and the sound-absorbing effect is not ideal.

Description

Technical Field

[0001] This application relates to the field of intelligent cleaning devices, and particularly to a dust collection bucket and a cleaning system. Background Art

[0002] With the development of intelligent technology, more and more intelligent devices are put into use in ordinary families to replace users in handling daily affairs and provide convenient services for users. The floor sweeper is loved by more and more users because of its intelligent cleaning function. In order not to clean the dust box of the floor sweeper frequently, a dust collection bucket is usually equipped for the floor sweeper. When the garbage collected in the dust box built in the floor sweeper is too much, it will return to the base station and connect with the dust collection bucket to discharge the garbage in the dust box into the dust collection bucket.

[0003] Therefore, a high-power fan is arranged in the dust collection bucket. Due to the large air volume and strong suction force brought by the high-power fan, it can quickly and efficiently suck the garbage in the dust box of the floor sweeper into the dust collection bucket. However, when the high-power fan operates, it will inevitably generate a large amount of noise, which will affect the user experience.

[0004] For the existing dust collection buckets on the market, in order to soundproof them, the common method is to directly wrap multiple layers of sound-absorbing cotton around the fan. However, this method will greatly affect the air volume of the dust collection bucket, and the soundproofing effect on noise is not ideal. Summary of the Invention

[0005] The dust collection bucket and the cleaning system provided by this application aim to solve the problem that in the prior art, the method of wrapping multiple layers of sound-absorbing cotton around the fan will affect the air volume of the dust collection bucket and the soundproofing effect is not ideal.

[0006] To solve the above technical problems, this application provides a dust collection bucket, including: a dust collection bucket housing, a fan, and a fan bracket. The fan bracket is installed in the dust collection bucket housing, the fan is installed in the fan bracket. The first end of the fan bracket and the dust collection bucket housing cooperate to form a first-layer air duct, the second end of the fan bracket and the dust collection bucket housing cooperate to form a second-layer air duct. The air inlet of the fan is communicated with the suction port of the dust collection bucket, the air outlet of the fan is communicated with the first-layer air duct, the first-layer air duct is communicated with the second-layer air duct, and the second-layer air duct is communicated with the exhaust port of the dust collection bucket housing. Under the action of the fan, the air flow flows into the first-layer air duct and the second-layer air duct in sequence for soundproofing, and then is discharged from the exhaust port of the dust collection bucket housing.

[0007] Preferably, a fan installation groove is provided inside the dust collection bucket housing. The fan bracket is installed in the fan installation groove. An air suction port is provided in the fan installation groove. The air inlet of the fan communicates with the outside through the air suction port. The first end of the fan bracket and the fan installation groove cooperate to form the first-layer air duct, and the second end of the fan bracket and the fan installation groove cooperate to form the second-layer air duct.

[0008] Preferably, the fan bracket includes a first bracket and a second bracket. The first bracket is arranged inside the second bracket. The fan is installed inside the first bracket. A partition is provided between the first bracket and the second bracket. The partition cooperates with the first bracket and the second bracket to divide the fan installation groove into the first-layer air duct and the second-layer air duct. A first ventilation hole is provided inside the partition, and the first ventilation hole communicates the first-layer air duct and the second-layer air duct.

[0009] Preferably, the partition connects the first bracket and the second bracket. The first bracket extends from the connection part of the partition to form an extension part that protrudes longer than the second bracket. The extension part is the end of the first bracket close to the first-layer air duct, and a second ventilation hole is provided on the extension part. The air outlet of the fan communicates with the first-layer air duct through the second ventilation hole.

[0010] Preferably, the first ventilation hole and the second ventilation hole are arranged opposite to each other.

[0011] Preferably, the second-layer air duct is formed by enclosing the end of the first bracket away from the extension part, the second bracket, the partition, and the dust collection bucket housing. A third ventilation hole is also provided on the second bracket, and the third ventilation hole communicates with the exhaust port.

[0012] Preferably, the third ventilation hole and the second ventilation hole are arranged opposite to each other.

[0013] Preferably, a sealing gasket is provided at the contact between the fan and the first bracket.

[0014] Preferably, at least one resonance cavity is arranged oppositely inside the first-layer air duct. Sound absorption holes are provided on the surface of the resonance cavity facing the first-layer air duct.

[0015] Preferably, when the number of the resonance cavities exceeds two, the number of the sound absorption holes on the adjacent resonance cavities are prime numbers to each other.

[0016] Preferably, shock pads are provided at both ends of the fan.

[0017] Preferably, sound absorption cotton is provided inside the second-layer air duct.

[0018] In a second aspect, the present application further provides a cleaning system, which includes a floor sweeper and the dust collection bucket described in any one of the above.

[0019] A dust collection bucket of the present application includes: a dust collection bucket housing, a fan, and a fan bracket. The fan bracket is installed inside the dust collection bucket housing, the fan is installed inside the fan bracket. The first end of the fan bracket cooperates with the dust collection bucket housing to form a first-layer air duct, and the second end of the fan bracket cooperates with the dust collection bucket housing to form a second-layer air duct. The air inlet of the fan is communicated with the suction port of the dust collection bucket, the air outlet of the fan is communicated with the first-layer air duct, the first-layer air duct is communicated with the second-layer air duct, and the second-layer air duct is communicated with the exhaust port of the dust collection bucket housing. Under the action of the fan, the air flow flows into the first-layer air duct and the second-layer air duct in sequence for sound absorption and then is discharged from the exhaust port of the dust collection bucket housing. The air flow generated by the fan will flow through the first-layer air duct and the second-layer air duct in sequence. Different from the existing method of directly arranging multiple layers of sound-absorbing cotton around the fan, the present application utilizes the structures of the first-layer air duct and the second-layer air duct. The sound waves of the air flow will gradually weaken after being reflected in the first-layer air duct and the second-layer air duct, thereby achieving a good sound-absorbing effect and solving the problems in the prior art that the method of wrapping multiple layers of sound-absorbing cotton around the fan will affect the air volume of the dust collection bucket and the sound-absorbing effect is not ideal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an exploded view of the dust collection bucket in an embodiment;

[0021] Figure 2 is a schematic structural diagram of the dust collection bucket housing in an embodiment;

[0022] Figure 3 is a schematic structural diagram of the fan in an embodiment;

[0023] Figure 4 is a schematic structural diagram of the fan bracket in an embodiment;

[0024] Figure 5 is a schematic diagram of the first perspective of the assembly of the fan and the fan bracket in an embodiment;

[0025] Figure 6 is a schematic diagram of the second perspective of the assembly of the fan and the fan bracket in an embodiment.

[0026] Among them, 1. Dust collection bucket housing; 11. Air suction port; 12. Exhaust port; 13. Fan installation groove; 2. Fan; 21. Air inlet; 22. Air outlet; 3. Fan bracket; 31. First bracket; 32. Second bracket; 33. Partition; 34. First ventilation hole; 35. Second ventilation hole; 36. Third ventilation hole; 37. Resonance cavity; 4. First layer air duct; 5. Second layer air duct; 6. Gasket; 7. Shock pad; 8. Sound-absorbing cotton.

[0027] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In the first aspect, referring to Figures 1 to 6 , a dust collection bucket provided by the present application includes: a dust collection bucket housing 1, a fan 2 and a fan bracket 3. The fan bracket 3 is installed in the dust collection bucket housing 1, the fan 2 is installed in the fan bracket 3. The first end of the fan bracket 3 cooperates with the dust collection bucket housing 1 to form a first layer air duct 4, the second end of the fan bracket 3 cooperates with the dust collection bucket housing 1 to form a second layer air duct 5. The air inlet 21 of the fan 2 is communicated with the air suction port 11 of the dust collection bucket, the air outlet 22 of the fan 2 is communicated with the first layer air duct 4, the first layer air duct 4 is communicated with the second layer air duct 5, and the second layer air duct 5 is communicated with the exhaust port 12 of the dust collection bucket housing 1. Under the action of the fan 2, the air flow flows into the first layer air duct 4 and the second layer air duct 5 in sequence for sound absorption and then is discharged from the exhaust port 12 of the dust collection bucket housing 1.

[0031] As described above, the dust collection bucket provided in this embodiment includes: a dust collection bucket housing 1, a fan 2, and a fan bracket 3. The dust collection bucket housing 1 is a relatively airtight cavity, or a relatively airtight cavity is provided inside the dust collection bucket housing 1. The cavity can be integrally formed or assembled by a main trough body and a cover plate. An air suction port 11 and an air exhaust port 12 are provided on the end face or side wall of the cavity. The fan bracket 3 and the fan 2 are installed in this cavity. The fan bracket 3 is a hollow cylindrical structure with openings at both ends. The side wall of the fan bracket 3 is in close contact with the side wall of the cavity. When the fan 2 is installed into the fan bracket 3, the outer surface of the fan 2 is in close fit with the inner wall of the fan bracket 3. The inside of the fan bracket 3 is blocked by the fan 2, so that the two ends of the fan bracket 3 cannot be directly communicated, but can only be communicated through the air inlet 21 and the air outlet 22 of the fan 2. Therefore, the first end of the fan bracket 3 can form a first air duct 4 by enclosing with one of the side wall of the cavity, and the bottom surface or the top surface of the cavity, and the second end of the fan bracket 3 can directly form a second air duct 5 by enclosing with the remaining one of the bottom surface or the top surface of the cavity, or the second end of the fan bracket 3 can directly form a second air duct 5 by enclosing with the remaining one of the bottom surface or the top surface of the cavity and the side wall of the cavity. The air outlet 22 of the fan 2 is communicated with the first air duct 4. The first air duct 4 can only be communicated through a first ventilation hole 34 provided between the first air duct 4 and the second air duct 5. The second air duct 5 is communicated with the air exhaust port 12;

[0032] When the dust collection bucket is working, the air inlet 21 of the fan 2 sucks air. While the air outlet 22 of the fan 2 generates air flow, noise is also generated. The noise sound waves follow the air flow and enter the first air duct 4 and the second air duct 5 in sequence. The sound waves will be reflected in the first air duct 4 and the second air duct 5, and the sound waves will be weakened during the continuous reflection process. At the same time, the first air duct 4 and the second air duct 5 generate acoustic impedance to the sound waves during the propagation process of the sound waves. Therefore, the noise generated by the fan 2 can be effectively silenced without hindering the flow of air. At the same time, since there is no interference of orifice plates and sudden changes in cross-sections in the main flow channel, the overall resistance to the air flow is basically not affected. Therefore, the influence on the air volume of the dust collection bucket is relatively small.

[0033] Referring to Figure 2 , in one embodiment, a fan installation groove 13 is provided inside the dust collection bucket housing 1. The fan bracket 3 is installed in the fan installation groove 13. The air suction port 11 is provided in the fan installation groove 13. The air inlet 21 of the fan 2 is communicated with the outside through the air suction port 11. The first end of the fan bracket 3 and the fan installation groove 13 cooperate to form the first air duct 4, and the second end of the fan bracket 3 and the fan installation groove 13 cooperate to form the second air duct 5.

[0034] As described above, a fan mounting groove 13 is provided in the dust collecting barrel shell 1. The fan mounting groove 13 is a relatively closed cavity. The cavity can be integrally formed or assembled from a main groove body and a groove cover. An air intake port 11 and an air exhaust port 12 are provided on the end face or side wall of the cavity. The fan bracket 3 is installed in the fan mounting groove 13. The outer layer of the fan bracket 3 is tightly fitted with the side wall of the fan mounting groove 13. The fan 2 is installed in the fan bracket 3. The air inlet of the fan 2 is connected to the air intake port 11. The fan bracket The first end of the fan bracket 3 can be combined with the side wall of the fan mounting groove 13 and one of the end surfaces of the bottom surface or the top surface of the fan mounting groove 13 to form a first layer of air duct 4, and the second end of the fan bracket 3 can be directly combined with the remaining end surface of the bottom surface or the top surface of the fan mounting groove 13 to form a second layer of air duct 5, or the second end of the fan bracket 3 can be directly combined with the remaining end surface of the bottom surface or the top surface of the fan mounting groove 13 and the side wall of the fan mounting groove 13 to form a second layer of air duct 5.

[0035] Reference Figure 4 - Figure 6 In one embodiment, the fan bracket 3 includes a first bracket 31 and a second bracket 32, the first bracket 31 is arranged in the second bracket 32, the fan 2 is installed in the first bracket 31, and a partition 33 is arranged between the first bracket 31 and the second bracket 32. The partition 33 cooperates with the first bracket 31 and the second bracket 32 to separate the fan installation groove 13 to form the first layer of air duct 4 and the second layer of air duct 5. The partition 33 is provided with a first vent 34, and the first vent 34 connects the first layer of air duct 4 and the second layer of air duct 5.

[0036] As described above, the fan bracket 3 includes a first bracket 31 and a second bracket 32. Among them, for the first bracket 31 and the second bracket 32, the shape of the first bracket 31 is the same as that of the fan 2. It is worth mentioning that here it does not mean that the shapes of the first bracket 31 and the fan 2, that is, the outer contours are exactly the same, but only from the same end face of the first bracket 31 and the fan 2, the shape of the first bracket 31 is the same as that of the fan 2. So that when the fan 2 is installed in the first bracket 31, the fan 2 can fit perfectly with the first bracket 31 without gaps. The first bracket 31 is sleeved in the second bracket 32, and the first bracket 31 is connected to the second bracket 32 through a partition 33. Looking from the front direction of the fan bracket 3, the partition 33 divides the first bracket 31 and the second bracket 32 into upper and lower layers. Further, the first bracket 31 can be entirely sleeved in the second bracket 32, or partially sleeved in the second bracket 32, and the other part extends out of the second bracket 32. The upper part of the first bracket 31, the upper part of the second bracket 32 (the upper part of the second bracket 32 is not shown), the partition 33, and the top surface of the fan installation groove 13 cooperate to form the first air duct 4, or the upper part of the first bracket 31, the partition 33, and the side wall and top surface of the fan installation groove 13 cooperate to form the first air duct 4. The lower part of the second bracket 32, the lower part of the first bracket 31, the partition 33, and the bottom surface of the fan installation groove 13 cooperate to form the second air duct 5, or the lower part of the second bracket 32, the partition 33, and the side wall and bottom surface of the fan installation groove 13 cooperate to form the second air duct 5. That is, the first bracket 31 can cooperate with the partition 33 and the side wall and two end faces of the fan installation groove 13 to divide the fan installation groove 13 into the first air duct 4 and the second air duct 5, or the first bracket 31 can cooperate with the partition 33, the side wall and two end faces of the fan installation groove 13, and the second bracket 32 to divide the fan installation groove 13 into the first air duct 4 and the second air duct 5. Whether the second bracket 32 is provided and which layer it is provided in can be set according to the spatial structure of the fan installation groove 13.

[0037] In one embodiment, the partition 33 connects the first bracket 31 and the second bracket 32. The first bracket 31 extends from the connection of the partition 33 to form an extension part that protrudes longer than the second bracket 32. The extension part is the end of the first bracket 31 close to the first air duct 4, and the extension part is provided with a second ventilation hole 35. The air outlet 22 of the fan 2 is communicated with the first air duct 4 through the second ventilation hole 35.

[0038] In one embodiment, the first ventilation hole 34 and the second ventilation hole 35 are arranged opposite to each other.

[0039] As described above, the partition 33 connects the first bracket 31 and the second bracket 32. The first bracket 31 extends from the connection of the partition 33 to form an extension part that is convex and longer than the second bracket 32. The extension part is the end of the first bracket 31 close to the first-layer air duct 4. At this end of the first bracket 31 in the first-layer air duct 4, a second ventilation hole 35 is provided. After the air flow comes out from the air outlet 22 of the fan 2, it flows into the first-layer air duct 4 through the second ventilation hole 35. The first ventilation hole 34 is arranged opposite to the second ventilation hole 35, that is, the first ventilation hole 34 and the second ventilation hole 35 are arranged at opposite ends. This can increase the air flow path of the air flow in the first-layer air duct 4, and then correspondingly increase the acoustic impedance of the air flow in the first-layer air duct 4 and the reflection of the sound wave on the inner side wall surface of the first-layer air duct 4, strengthening the sound absorption effect.

[0040] In one embodiment, the second-layer air duct 5 is formed by enclosing the end of the first bracket 31 away from the extension part, the second bracket 32, the partition 22, and the dust collection bucket housing 1. A third ventilation hole 36 is further provided on the second bracket 32, and the third ventilation hole 36 is communicated with the exhaust port 12.

[0041] In one embodiment, the third ventilation hole 36 is arranged opposite to the second ventilation hole 35.

[0042] As described above, the second-layer air duct 5 is formed by enclosing the end of the first bracket 31 away from the extension part, the second bracket 32, the partition 22, and the dust collection bucket housing 1. At this end of the second bracket 32 in the second-layer air duct 5, a third ventilation hole 36 is provided. After the air flow flows into the second-layer air duct 5 from the second ventilation hole 35, since the second ventilation hole 35 is arranged opposite to the third ventilation hole 36, that is, the third ventilation hole 36 and the second ventilation hole 35 are arranged at opposite ends, this can increase the air flow path of the air flow in the second-layer air duct 5, and then correspondingly increase the acoustic impedance of the air flow in the second-layer air duct 5 and the reflection of the sound wave on the inner side wall surface of the second-layer air duct 5, further strengthening the sound absorption effect.

[0043] Refer to Figure 1 and Figure 6 In one embodiment, a sealing gasket 6 is provided at the contact between the fan 2 and the first bracket 31.

[0044] As described above, a sealing gasket 6 is provided at the contact between the fan 2 and the first bracket 31. The sealing gasket 6 can ensure the tightness at the contact between the fan 2 and the first bracket 31, so that the air flow can only flow into the first-layer air duct 4 from the second ventilation hole 35 and can only flow into the second-layer air duct 5 from the third ventilation hole 36.

[0045] Refer to Figure 5 and Figure 6, in one embodiment, at least one resonance cavity 37 is oppositely arranged in the first-layer air duct 4, and sound-absorbing holes are arranged on the surface of the resonance cavity 37 facing the first-layer air duct 4.

[0046] As described above, at least one resonance cavity 37 is arranged in the first-layer air duct 4, and a plurality of sound-absorbing holes are arranged on the resonance cavity 37. When the air flow passes through the resonance cavity 37, the resonance cavity 37 can absorb the noise sound waves in the air flow. Further, the resonance cavities 37 can be symmetrically arranged in the first-layer air duct 4 to ensure the same noise reduction effect on the air flow passing from both sides.

[0047] In one embodiment, when the number of the resonance cavities 37 exceeds two, the number of the sound-absorbing holes on the adjacent resonance cavities 37 is relatively prime to each other.

[0048] As described above, when the number of the resonance cavities 37 exceeds two, the number of the sound-absorbing holes on each resonance cavity 37 can be designed differently to enable the resonance cavity 37 to reduce the noise of different frequencies. Further, the number of the sound-absorbing holes on the adjacent resonance cavities 37 is relatively prime to each other. That is, if 5 sound-absorbing holes are arranged on the first resonance cavity 37, 7 sound-absorbing holes can be arranged on the second resonance cavity 37, and 11 sound-absorbing holes can be arranged on the third resonance cavity 37, ensuring that there is no multiple relationship in the aperture ratio (number of holes) of different resonance cavities 37. Therefore, the resonance cavity 37 can process the noise of more frequencies and increase the frequency range of sound absorption.

[0049] It is worth mentioning that when there is enough space, 4, 5 (3 in the figure) or even more sections of resonance cavities can be designed, so as to reduce the noise of sound absorption in a wider frequency range.

[0050] In one embodiment, shock pads 7 are arranged at both ends of the blower 2.

[0051] As described above, shock pads 7 are arranged at both ends of the blower 2, which can reduce the noise generated by the vibration of the blower 2 during operation.

[0052] In one embodiment, sound-absorbing cotton 8 is arranged in the second-layer air duct 5.

[0053] As described above, sound-absorbing cotton 8 can be arranged in the second-layer air duct 5. Since the sound-absorbing cotton 8 has a certain absorption effect on the whole broadband noise, the overall noise reduction effect can be enhanced.

[0054] In a second aspect, the present application further provides a cleaning system, and the cleaning system includes a floor sweeper and the dust collection bucket described in any one of the above.

[0055] It should be noted that all the directional indications (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The connection can be a direct connection or an indirect connection.

[0056] In addition, in the present invention, the descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0057] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A dust collection bucket, characterized in that, Comprising: A dust collection bucket housing, a fan, and a fan bracket. The fan bracket is installed inside the dust collection bucket housing, the fan is installed inside the fan bracket. The first end of the fan bracket cooperates with the dust collection bucket housing to form a first-layer air duct, the second end of the fan bracket cooperates with the dust collection bucket housing to form a second-layer air duct. The air inlet of the fan is communicated with the suction port of the dust collection bucket, the air outlet of the fan is communicated with the first-layer air duct, the first-layer air duct is communicated with the second-layer air duct, and the second-layer air duct is communicated with the exhaust port of the dust collection bucket. Under the action of the fan, air flows into the first-layer air duct and the second-layer air duct in sequence for sound absorption, and then is discharged from the exhaust port of the dust collection bucket housing; A fan installation groove is provided inside the dust collection bucket housing, the fan bracket is installed inside the fan installation groove, an air suction port is provided in the fan installation groove, and the air inlet of the fan is communicated with the outside through the air suction port. The first end of the fan bracket cooperates with the fan installation groove to form the first-layer air duct, and the second end of the fan bracket cooperates with the fan installation groove to form the second-layer air duct; The fan bracket includes a first bracket and a second bracket. The first bracket is arranged inside the second bracket, the fan is installed inside the first bracket. A partition is arranged between the first bracket and the second bracket. The partition cooperates with the first bracket and the second bracket to divide the fan installation groove into the first-layer air duct and the second-layer air duct. A first ventilation hole is provided inside the partition, and the first ventilation hole communicates the first-layer air duct and the second-layer air duct.

2. The dust collection bucket according to claim 1, characterized in that, The partition connects the first bracket and the second bracket. The first bracket extends from the connection part of the partition to form an extension part that protrudes longer than the second bracket. The extension part is the end of the first bracket close to the first-layer air duct, and a second ventilation hole is provided on the extension part. The air outlet of the fan is communicated with the first-layer air duct through the second ventilation hole.

3. The dust collection bucket according to claim 2, wherein The first ventilation hole and the second ventilation hole are arranged opposite to each other.

4. The dust collection bucket according to claim 3, wherein, The end of the first bracket away from the extension part, the second bracket, the partition, and the dust collection bucket housing enclose to form the second-layer air duct. A third ventilation hole is also provided on the second bracket, and the third ventilation hole is communicated with the exhaust port.

5. The dust collection bucket according to claim 4, characterized in that, The third ventilation hole and the second ventilation hole are arranged opposite to each other.

6. The dust collection bucket according to claim 1, wherein, At least one resonance cavity is arranged opposite inside the first-layer air duct, and sound absorption holes are provided on the surface of the resonance cavity facing the first-layer air duct.

7. The dust collection bucket according to claim 6, wherein When the number of the resonance cavities exceeds two, the number of the sound absorption holes on adjacent resonance cavities is relatively prime to each other.

8. A cleaning system, characterized in that, The cleaning system includes a sweeping robot and the dust collection bucket as described in any one of claims 1 to 7.

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