Cleaning device

Abstract

The present disclosure relates to a cleaning device, which comprises a first air blower, a second air blower, and an air guide enclosure. The air guide enclosure is provided with a first air duct, a second air duct, and an air outlet. The first air duct and the second air duct are combined at the upstream of the air outlet, so that both airflow generated by the first air blower and guided by the first air duct and airflow generated by the second air blower and guided by the second air duct are discharged from the air outlet. Due to the presence of the air guide enclosure, no matter the first air blower and the second air blower operate individually or simultaneously, the airflow generated by the first air blower and the airflow generated by the second air blower can converge at the same air outlet under the guide of the respective air ducts, and then be discharged from the air outlet. The airflow discharged from the air outlet helps the cleaning device to achieve an air blowing function, so that the cleaning device can operate in a suction mode and can operate in an air blowing mode. In this way, the cleaning device of the present disclosure has rich functionalities.

Description

cleaning equipment Technical Field

[0001] The present disclosure relates to the technical field of suction cleaning, and in particular, to a cleaning device. Background Art

[0002] The use of cleaning equipment not only reduces labor costs but also improves cleaning efficiency. Some cleaning equipment includes a fan, which creates negative pressure to achieve cleaning. Vacuum cleaners are one such type of cleaning equipment, which clean by sucking air to pick up dust.

[0003] In order to cope with some usage requirements, a cleaning device including two fans has emerged. For example, one fan can be driven by an AC motor and the other fan can be driven by a DC motor, so that the cleaning device can operate under both DC and AC power supply modes.

[0004] However, in the related art, these cleaning devices with dual fans can only operate by suction, and their functions are relatively simple. Utility Model Content

[0005] In view of this, the present disclosure improves the cleaning equipment with dual fans, aiming to enrich the functions of this type of cleaning equipment and solve the problem that the functions of this type of cleaning equipment are relatively single.

[0006] The cleaning device provided herein includes a first blower, a second blower, and an air guide. The air guide is provided with a first air duct, a second air duct, and an air outlet. The first air duct and the second air duct merge upstream of the air outlet, so that the airflow generated by the first blower and guided by the first air duct and the airflow generated by the second blower and guided by the second air duct are both discharged through the air outlet.

[0007] Due to the presence of the air guide, regardless of whether the first and second fans are operating separately or simultaneously, the airflows they generate will be guided by their respective air ducts and converged to the same air outlet, where they will be discharged. The airflow discharged from this air outlet will help the cleaning device achieve its blowing function, allowing the cleaning device to operate not only by suction but also by blowing. As a result, the cleaning device according to the present disclosure will have a relatively rich set of functions.

[0008] Additionally or alternatively, the first and second fans include first and second impellers, respectively, and the air guide includes a first air guide portion, a second air guide portion, and an air outlet duct. The first air guide portion at least partially defines a first air chamber for accommodating the first impeller, and the second air guide portion at least partially defines a second air chamber for accommodating the second impeller. The first air duct, the second air duct, and the air outlet are defined by the first air guide portion, the second air guide portion, and the air outlet duct, respectively.

[0009] When a fan is running, its impeller rotates, creating negative pressure in the corresponding air chamber, which in turn generates airflow. The airflow flows from the air chamber through the corresponding air duct to the outlet duct. Guided by the outlet duct, the airflow is better concentrated, helping to achieve directional blowing. Each air guide at least partially defines the air chamber and the air duct, which helps reduce the number of components and allows airflow to flow directly from the air chamber to the air duct.

[0010] Additionally or alternatively, the axes of the first fan and the second fan are substantially parallel and spaced apart from each other. When viewed from above, the axis of the first fan intersects a reference line, or the first fan and the air outlet duct are located on the same side of the reference line. Here, the reference line intersects the axis of the second fan and is substantially parallel to the air outlet duct.

[0011] This structure can help the first air duct and the second air duct to have a relatively short length, thereby helping to reduce the flow resistance when the air flows through them, ensuring better air outlet efficiency.

[0012] Additionally or alternatively, in a plan view, the axis of the first fan and the air outlet duct are located on the same side of the reference line, and the axis of the first fan and the axis of the second fan are located on opposite sides of the air outlet duct in the transverse direction.

[0013] This structure can further help the first air duct and the second air duct to have a relatively short length, thereby helping to reduce the flow resistance when the air flows through them, ensuring better air outlet efficiency.

[0014] Additionally or alternatively, the first fan is driven by a DC motor and the second fan is driven by an AC motor. In a top view, the axis of the first fan intersects the reference line, and the axis of the first fan is closer to the outlet end of the air outlet duct than the axis of the second fan.

[0015] The second fan is driven by an AC motor and therefore usually has a larger size. Correspondingly, the first fan is driven by a DC motor and therefore usually has a smaller size. On this basis, the axis of the first fan is arranged to intersect with the reference straight line and be closer to the outlet end of the air outlet duct than the axis of the second motor. The first air duct is closer to the flow channel inside the air outlet duct, while the second air duct only needs to bypass the smaller first fan. Therefore, both air ducts do not need to be extended for a long time to connect with the flow channel inside the air outlet duct. Therefore, this structure can further help the first air duct and the second air duct to obtain a relatively short length, thereby helping to reduce the flow resistance when the airflow passes through them, ensuring better air outlet efficiency.

[0016] Additionally or alternatively, the first fan and the second fan include a first motor and a second motor respectively, the first air guide portion is provided with a first exposure opening exposing the top end of the first motor, and / or the second air guide portion is provided with a second exposure opening exposing the top end of the second motor.

[0017] The first exposure opening exposes the top of the first motor outside the first air guide, which helps improve the heat dissipation efficiency of the first motor. Similarly, the second exposure opening exposes the top of the second motor outside the second air guide, which helps improve the heat dissipation efficiency of the second motor.

[0018] Additionally or alternatively, the second air guide portion at least partially defines a storage chamber separated from the second air chamber, and the second motor is at least partially stored in the storage chamber. An outer wall of the storage chamber is provided with a first heat dissipation opening. A heat dissipation fan of the second motor generates a heat dissipation airflow from the second exposure opening to the first heat dissipation opening.

[0019] When the second motor is running, the cooling airflow generated by its cooling fan will enter the accommodation chamber through the second exposure port, flow through the accommodation chamber, and out through the first cooling port. This process effectively removes the heat generated by the second motor, thereby improving the heat dissipation effect of the second motor. In particular, when the second motor is an AC motor, it will generate more heat, thus requiring a better heat dissipation effect.

[0020] Additionally or alternatively, the cleaning device further comprises a shell, the air guide cover is at least partially accommodated in the shell, the shell is provided with a second heat dissipation port, and the heat dissipation airflow from the first heat dissipation port is discharged through the second heat dissipation port.

[0021] When the second motor is running, the heat dissipation airflow generated by its heat dissipation fan will be able to flow smoothly out of the shell through the second heat dissipation port after leaving the accommodating chamber, which helps to further improve the heat dissipation effect of the second motor.

[0022] Additionally or alternatively, the air guide cover further includes a pair of partition portions, which are spaced apart from each other in the circumferential direction and protrude radially outward beyond the outer wall of the second air guide portion, and the first heat dissipation outlet is located between the pair of partition portions.

[0023] Under the guidance of the pair of partition parts, the heat dissipation airflow leaving the first heat dissipation port will flow more and more directly to the second heat dissipation port, and then be discharged outside the shell, which is conducive to reducing flow resistance and thus improving heat dissipation efficiency.

[0024] Additionally or alternatively, the air guide cover further includes a reinforcement rib, which is located between the pair of partition portions in the circumferential direction and divides the first heat dissipation opening.

[0025] To improve heat dissipation efficiency, the first heat dissipation opening is larger in size. A larger opening would weaken the structural strength of the air scoop. The reinforcing ribs with this structure help to improve the structural strength of the air scoop.

[0026] Additionally or alternatively, the first fan and the second fan include a first motor and a second motor respectively, the first motor is a DC motor, and the second motor is an AC motor.

[0027] Additionally or alternatively, the cleaning device includes a dust collection bucket and a head assembly, wherein the head assembly closes a top opening of the dust collection bucket, the dust collection bucket is provided with a suction port, and the head assembly includes a first fan, a second fan, and an air guide cover. When the first fan and / or the second fan are in operation, air flows in through the suction port and is discharged through the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments.

[0029] It should be understood that the following drawings only depict certain embodiments of the present disclosure and should not be considered limiting of the scope.

[0030] It should also be understood that the same or similar reference numerals are used in the drawings to identify the same or similar elements.

[0031] It should also be understood that the drawings are merely schematic and that the sizes and proportions of elements in the drawings are not necessarily accurate.

[0032] FIG1 is a schematic structural diagram of a cleaning device according to an embodiment of the present disclosure.

[0033] FIG. 2 is an exploded schematic diagram of the main body of the cleaning device in FIG. 1 .

[0034] FIG3 is a schematic cross-sectional view of the main body of the cleaning device in FIG1 .

[0035] FIG4 is a schematic structural diagram of the air guide cover in FIG2 .

[0036] FIG5 shows the relative positional relationship among the first fan, the second fan, and the air outlet pipe of the air guide cover in FIG2 .

[0037] FIG6 shows the relative positional relationship among the first fan, the second fan, and the air outlet duct of the air guide cover according to a modified example of the present disclosure.

[0038] FIG7 shows the relative positional relationship among the first fan, the second fan, and the air outlet duct of the air guide cover according to another modified example of the present disclosure. DETAILED DESCRIPTION

[0039] The following is an exemplary description of the embodiments of the present disclosure in conjunction with the accompanying drawings. It should be understood that the present disclosure can be implemented in many ways and should not be construed as being limited to the embodiments described herein. The embodiments described herein are only for a more thorough and clear understanding of the present disclosure.

[0040] The present disclosure provides a cleaning device 100. The present disclosure does not particularly limit the type of cleaning device 100. For example, the cleaning device 100 can perform cleaning operations by suction. As an example, the cleaning device 100 can pick up dust and debris by suctioning air to achieve the purpose of cleaning. In other words, the cleaning device 100 can be a vacuum cleaner. As another example, the cleaning device 100 can achieve the purpose of cleaning by applying a cleaning fluid to an object to be cleaned and sucking dirty fluid from the object to be cleaned. For example, the cleaning device 100 can be a floor scrubber or carpet washer.

[0041] For ease of understanding, the overall structure of cleaning device 100 will be described below, using cleaning device 100 as an example of a specific type of vacuum cleaner. It should be understood that cleaning device 100 is not limited to this type of vacuum cleaner, or even to vacuum cleaners. Of course, the structure of cleaning device 100 is not limited to the following description. For example, one or more of the elements described below may be omitted or replaced, and their layout relationships may be altered.

[0042] 1 , a cleaning device 100 may include a head assembly 10 , a dust collecting container 20 , and a suction pipe 30 .

[0043] 2 , the dust collection bucket 20 may include a dust storage space 21 with an open top. The top of the dust storage space 21 is open to form a top opening 22. The dust collection bucket 20 may also include a suction port 23, which is in fluid communication with the dust storage space 21. For example, the suction port 23 may be located on a side of the dust collection bucket 20. When the cleaning device 100 is in operation, airflow carrying dust debris enters the dust storage space 21 through the suction port 23, leaving the dust debris in the dust storage space 21.

[0044] The head assembly 10 can be installed on the top of the dust collecting bucket 20 to close the top opening 22 of the dust collecting bucket 20. The head assembly 10 may include a shell 11, a first fan 12, a second fan 13 and a filter 14. The first fan 12 and the second fan 13 may be accommodated in the shell 11. The filter 14 may be installed below the shell 11 to at least partially extend into the dust holding space 21. As an example, the shell 11 may include an upper cover portion 111 and a lower cover portion 112 assembled together. When the first fan 12 and / or the second fan 13 are in operation, the airflow mixed with dust will first enter the dust holding space 21, and then enter the head assembly 10 through the filter 14, thereby leaving the dust in the dust holding space 21 and discharging the filtered air.

[0045] The suction pipe 30 can have a slender structure. One end of the suction pipe 30 can be connected to the suction port 23 of the dust collecting bucket 20 to communicate with the dust holding space 21 in the dust collecting bucket 20. The other end of the suction pipe 30 can be provided with a cleaning tool 31. The cleaning tool 31 can be integrally formed with the suction pipe 30, or it can be assembled together with the suction pipe 30. In the example where the cleaning device 100 is a vacuum cleaner, the cleaning tool 31 can be a suction nozzle that allows air mixed with dust to be sucked in. Of course, in other examples, the cleaning tool 31 can also have other structures and functions. For example, it can be used to apply a cleaning fluid to the object to be cleaned and to suck dirty fluid from the object to be cleaned.

[0046] In order to solve the problem that the cleaning equipment with dual fans provided in the related field has a relatively single function, referring to Figure 2, according to the cleaning equipment 100 provided by the present disclosure, the head assembly 10 may further include an air guide hood 15. The air guide hood 15 may be at least partially housed in the housing 11. In conjunction with Figures 3 and 4, the air guide hood 15 may be provided with a first air duct 151a, a second air duct 152a and an air outlet 153a. The first air duct 151a and the second air duct 152a may merge upstream of the air outlet 153a, so that the airflow generated by the first fan 12 and guided by the first air duct 151a and the airflow generated by the second fan 13 and guided by the second air duct 152a are both discharged through the air outlet 153a.

[0047] Due to the presence of the air guide hood 15, regardless of whether the first fan 12 and the second fan 13 are operating separately or simultaneously, the airflows they generate will be guided by their respective air ducts (the first air duct 151a or the second air duct 152a), converge to the air outlet 153a, and be discharged at the air outlet 153a. The airflow discharged from the air outlet 153a will help the cleaning device 100 achieve the blowing function, allowing the cleaning device 100 to operate not only by suction but also by blowing. Accordingly, the cleaning device 100 according to the present disclosure will have a relatively rich set of functions.

[0048] Continuing with reference to Figures 2 to 4, the first fan 12 may include a first impeller 121, the second fan 13 may include a second impeller 131, and the air guide 15 may include a first air guide portion 151, a second air guide portion 152, and an air outlet duct 153. The first air guide portion 151 may at least partially define a first air chamber 16 for accommodating the first impeller 121, and the second air guide portion 152 may at least partially define a second air chamber 17 for accommodating the second impeller 131. A first air duct 151a may be defined by the first air guide portion 151, a second air duct 152a may be defined by the second air guide portion 152, and an air outlet 153a may be defined by the air outlet duct 153.

[0049] When the first fan 12 is running, the first impeller 121 rotates, generating negative pressure in the first air chamber 16, thereby forming an airflow. The airflow flows from the first air chamber 16 through the first air duct 151a to the air outlet duct 153. The first air guide 151 at least partially defines the first air chamber 16 and defines the first air duct 151a, and the second air guide 152 at least partially defines the second air chamber 17 and defines the second air duct 152a. This helps reduce the number of components and allows the airflow to flow directly from the first air chamber 16 and the second air chamber 17 to the first air duct 151a and the second air duct 152a, respectively. Under the guidance of the air outlet duct 153, the airflow will be better concentrated, helping to achieve directional blowing.

[0050] 2 and 3 , as an implementation, the air guide 15 can be mounted on the lower cover 112 such that the first air guide 151 cooperates with the lower cover 112 to form a first air chamber 16, and the second air guide 151 cooperates with the lower cover 112 to form a second air chamber 17. The filter 14 can be mounted on the lower cover 112 such that airflow passing through the filter 14 can flow into the first air chamber 6 and the second air chamber 17.

[0051] The air outlet pipe 153 can at least partially extend outside the housing 11. In some examples, when in use, the air outlet pipe 153 can directly provide a blowing function. In other examples, as shown in Figure 1, the cleaning device 100 can further include an external pipe 40, which can be connected to the air outlet pipe 153. When in use, the external pipe 40 can directly provide a blowing function. In examples with the external pipe 40, the air outlet pipe 153 does not necessarily extend outside the housing 11.

[0052] In order to drive the first impeller 121 and the second impeller 131 to rotate, the first fan 12 may further include a first motor 122 that is transmission-connected to the first impeller 121, and the second fan 13 may further include a second motor 132 that is transmission-connected to the second impeller 131. As an example, the first motor 122 may be a DC motor and the second motor 132 may be an AC motor, so that the cleaning device 100 can operate under both DC and AC power supply modes. Of course, in other examples, the first motor 122 may be an AC motor and the second motor 132 may be a DC motor, or the first motor 122 and the second motor 132 may be similar motors.

[0053] Further, referring to Figure 2, when the first motor 112 is a DC motor and the second motor 132 is an AC motor, the head assembly 10 can also include a battery 16 placed in the shell 11, and the battery 16 can be fixed to the lower cover 112 and electrically connected to the first motor 122 to power the first motor 112.

[0054] Furthermore, when the second motor 132 is operated by an external AC power supply, the external AC power supply can charge the battery 16 at the same time.

[0055] Continuing to refer to Figures 2 and 3, the first fan 12 may have an axis A1, and the second fan 13 may have an axis A2, and the axis A1 and the axis A2 may be approximately parallel and spaced apart from each other. In conjunction with Figures 4 and 5, a reference straight line RL is introduced, and the reference straight line RL is defined to intersect with the axis A2 of the second fan 13 and be approximately parallel to the air outlet duct 153 (for example, the error may be ±5°). As shown in Figure 5, when viewed from above, that is, in the orthographic projection in which the projection line is parallel to the axes A1 and A2, the axis A1 of the first fan 12 and the air outlet duct 153 may be located on the same side of the reference straight line RL (that is, the upper side in Figure 5). Alternatively, as shown in Figures 6 and 7, when viewed from above, the axis A1 of the first fan 12 may also intersect with the reference straight line RL.

[0056] If the axis A1 of the first fan 12 is located on the side of the reference line RL facing away from the air outlet duct 153, the first air duct 151a will need to travel a longer distance, bypassing the second air guide 152, before it can extend to connect with the flow channel inside the air outlet duct 153. This will increase the length of the first air duct 151a, thereby increasing the flow resistance of the airflow through the first air duct 151a, and thus reducing the air outlet efficiency. In contrast, in the above-mentioned examples of the present disclosure, the axis A1 and the air outlet duct 153 are located on the same side of the reference line RL, or the axis A1 intersects the reference line RL. This configuration can help the first air duct 151a and the second air duct 152a have relatively shorter lengths, thereby helping to reduce the flow resistance of the airflow passing through them and ensuring better air outlet efficiency.

[0057] In a specific example, referring to Figures 4 and 5 , when viewed from above, axis A1 of first fan 12 and air outlet duct 153 are located on the same side of reference line RL, and axis A1 of first fan 12 and axis A2 of second fan 13 are located on opposite sides of air outlet duct 153 in the transverse direction. This configuration further helps to shorten first air duct 151a and second air duct 152a, thereby reducing flow resistance when air flows through them and ensuring better air outlet efficiency.

[0058] It is understandable that the axis A1 and the axis A2 may be located on opposite sides of the entire air outlet pipe 153 in the horizontal direction, or may be located on opposite sides of the central axis L of the air outlet pipe 153 in the horizontal direction. The present disclosure is intended to cover both situations.

[0059] In another specific example, the first motor 122 is a DC motor, and the second motor 132 is an AC motor. When viewed from above, referring to FIG7 , the axis A1 of the first fan 12 intersects the reference line RL, and the axis A1 is closer to the outlet end of the air outlet duct 153 (i.e., the right end in FIG7 ) than the axis A2. The second fan 13 is driven by an AC motor and therefore typically has a larger size. Correspondingly, the first fan 12 is driven by a DC motor and therefore typically has a smaller size. On this basis, the axis A1 of the first fan 12 is arranged to intersect the reference line RL and be closer to the outlet end of the air outlet duct 153 than the axis A2 of the second fan 13. The first air duct 151a is closer to the flow path inside the air outlet duct 153, while the second air duct 152a only needs to bypass the smaller first fan 12. Therefore, both air ducts can connect to the flow path inside the air outlet duct 153 without a long extension. Therefore, this structure can further help the first air duct 151a and the second air duct 152a to obtain a relatively short length, thereby helping to reduce the flow resistance when the air flows through them, ensuring better air outlet efficiency.

[0060] 2 to 4 , the first air guide portion 151 may be provided with a first exposure opening 1511, through which the top end of the first motor 122 may be exposed to the outside of the air guide cover 15. Similarly, the second air guide portion 152 may be provided with a second exposure opening 1521, through which the top end of the second motor 132 may be exposed to the outside of the air guide cover 15. It will be understood that when the top end of a motor is exposed to the outside of the air guide cover 15, it may mean that the top end of the motor extends outside the air guide cover 15 through the corresponding exposure opening, or it may mean that the top end of the motor does not extend outside the air guide cover 15.

[0061] The top of the first motor 122 is exposed outside the first air guide 151 through the first exposure opening 1511, which helps improve the heat dissipation efficiency of the first motor 122. Similarly, the top of the second motor 132 is exposed outside the second air guide 152 through the second exposure opening 1521, which helps improve the heat dissipation efficiency of the second motor 132.

[0062] Considering that AC motors typically generate more heat, in the example where the second motor 132 is an AC motor, with continued reference to Figures 2 to 4 , the second air guide 152 can at least partially define a receiving chamber 18 separated from the second air chamber 17. The second motor 132 can be at least partially received in the receiving chamber 18. The outer wall of the receiving chamber 18 (i.e., the second air guide 152) can be provided with a first heat dissipation opening 1522. The cooling fan 1321 of the second motor 132 can generate a cooling airflow 1522 from the second exposure opening 1521 to the first heat dissipation opening. Of course, the possibility that the second motor 132 is a DC motor should not be ruled out.

[0063] When the second motor 132 is running, the cooling airflow generated by its cooling fan 1321 will enter the accommodation chamber 18 through the second exposure port 1521, flow through the accommodation chamber 18, and flow out through the first cooling port 1522. This process will effectively remove the heat generated by the second motor 132, thereby improving the heat dissipation effect of the second motor 132. In particular, when the second motor 132 is an AC motor, it will generate more heat, so a better heat dissipation effect is required.

[0064] Furthermore, referring to Figures 1 to 3, the housing 11 may be provided with a second heat dissipation vent 113, through which the heat dissipation airflow from the first heat dissipation vent 1522 can be discharged from the housing 11. Thus, when the second motor 132 is operating, the heat dissipation airflow generated by its heat dissipation fan 1321 will smoothly flow out of the housing 11 through the second heat dissipation vent 113 after leaving the accommodation chamber 18, thereby further improving the heat dissipation effect of the second motor 132.

[0065] Furthermore, referring to FIG4 , the air guide 15 may further include a pair of baffles 154. The baffles 154 may be spaced apart from each other in the circumferential direction and radially protrude outward beyond the outer wall of the second air guide 152. The first heat dissipation opening 1522 is located between the baffles 154. Thus, under the guidance of the baffles 154, the heat dissipation airflow leaving the first heat dissipation opening 1522 will flow more and more directly toward the second heat dissipation opening 113, and then be discharged outside the housing 11. This helps reduce flow resistance and thus improve heat dissipation efficiency.

[0066] To improve heat dissipation efficiency, first heat dissipation opening 1522 needs to be larger, but a larger opening would weaken the structural strength of air scoop 15. With this in mind, referring again to FIG4 , air scoop 15 may further include reinforcing ribs 155. Reinforcing ribs 155 may be circumferentially located between the pair of partitions 154 and divide first heat dissipation opening 1522. Reinforcing ribs 155 with this configuration help improve the structural strength of air scoop 15.

[0067] It should be noted that, in the present disclosure, axis A1 of the first fan 12 may refer to the rotation axis of the first impeller 121, and axis A2 of the second fan 13 may refer to the rotation axis of the second impeller 131. When describing the pair of partitions 154 and reinforcing ribs 155, the circumferential direction may refer to a direction around axis A2, and the radial direction may refer to a direction located on a plane perpendicular to axis A2 and intersecting axis A2.

[0068] It should be understood that the term "including" and its variations used in this disclosure are open-ended, i.e., "including but not limited to." The term "according to" means "at least in part according to." The term "one embodiment" means "a pair of embodiments"; the term "another embodiment" means "a pair of additional embodiments."

[0069] It should be understood that although the terms "first" or "second" etc. may be used in the present disclosure to describe various elements, for example, a first fan and a second fan, these elements are not defined by these terms, which are only used to distinguish one element from another.

[0070] The scope of protection of the present disclosure is not limited to the above-mentioned embodiments. Any changes or substitutions that can be conceived by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A cleaning device comprising a first blower and a second blower, characterized in that: The cleaning equipment also includes an air guide cover, which is provided with a first air duct, a second air duct and an air outlet. The first air duct and the second air duct merge upstream of the air outlet, so that the airflow generated by the first fan and guided by the first air duct and the airflow generated by the second fan and guided by the second air duct are both discharged through the air outlet.

2. The cleaning device according to claim 1, characterized in that The first fan and the second fan include a first impeller and a second impeller, respectively. The air guide cover includes a first air guide portion, a second air guide portion and an air outlet duct. The first air guide portion at least partially defines a first air chamber for accommodating the first impeller. The second air guide portion at least partially defines a second air chamber for accommodating the second impeller. The first air duct, the second air duct and the air outlet are respectively defined by the first air guide portion, the second air guide portion and the air outlet duct.

3. The cleaning device according to claim 2, characterized in that The axes of the first fan and the second fan are roughly parallel and spaced from each other; when viewed from above, the axis of the first fan intersects with a reference straight line, or the first fan and the air outlet duct are located on the same side of the reference straight line; the reference straight line intersects with the axis of the second fan and is roughly parallel to the air outlet duct.

4. The cleaning device according to claim 3, wherein When viewed from above, the axis of the first fan and the air outlet pipe are located on the same side of the reference straight line, and the axis of the first fan and the axis of the second fan are respectively located on opposite sides of the air outlet pipe in the transverse direction.

5. The cleaning device according to claim 3, wherein The first fan is driven by a DC motor, and the second fan is driven by an AC motor; when viewed from above, the axis of the first fan intersects with the reference straight line, and the axis of the first fan is closer to the outlet end of the air outlet duct than the axis of the second fan.

6. The cleaning device according to claim 2 or 3, characterized in that: The first fan and the second fan include a first motor and a second motor respectively. The first air guide portion is provided with a first exposure opening for exposing the top end of the first motor, and / or the second air guide portion is provided with a second exposure opening for exposing the top end of the second motor.

7. The cleaning device according to claim 6, characterized in that The second air guide portion at least partially defines a storage chamber separated from the second air chamber, the second motor is at least partially stored in the storage chamber, an outer wall of the storage chamber is provided with a first heat dissipation outlet, and a heat dissipation fan of the second motor generates a heat dissipation airflow from the second exposure outlet to the first heat dissipation outlet.

8. The cleaning device according to claim 7, characterized in that The device further comprises a housing, wherein the air guide cover is at least partially accommodated in the housing, and the housing is provided with a second heat dissipation outlet, through which the heat dissipation airflow from the first heat dissipation outlet is discharged; The air guide cover further includes a pair of partition portions, the pair of partition portions being spaced apart from each other in the circumferential direction and protruding outwardly in the radial direction beyond the outer wall of the second air guide portion, and the first heat dissipation outlet being located between the pair of partition portions; The air guide cover further includes a reinforcement rib, the reinforcement rib being located between the pair of partition plates in a circumferential direction and dividing the first heat dissipation opening.

9. The cleaning device according to any one of claims 1 to 3, characterized in that The first fan and the second fan include a first motor and a second motor respectively. The first motor is a DC motor, and the second motor is an AC motor.

10. The cleaning device according to any one of claims 1 to 3, characterized in that It includes a dust collecting bucket and a head assembly, the head assembly closes the top opening of the dust collecting bucket, the dust collecting bucket is provided with a suction port, the head assembly includes the first fan, the second fan and the air guide cover, wherein when the first fan and / or the second fan are running, the air flow enters from the suction port and is discharged from the air outlet.

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