Cleaning device and floor brush

Abstract

The utility model discloses a cleaning device and a floor brush. The floor brush is provided with a first heat dissipation air channel, an air inlet and a first air outlet, heat dissipation airflow enters the first heat dissipation air channel from the air inlet so as to dissipate heat of the driving assembly, and the heat dissipation airflow in the first heat dissipation air channel is exhausted from the first air outlet. In other words, the first heat dissipation air channel is arranged to dissipate heat of the driving assembly, and the mode that in the prior art, heat dissipation holes are formed in a shell of a motor gearbox to dissipate heat is replaced. Moreover, the air inlet is far away from the to-be-cleaned surface relative to the sleeve of the driving assembly, namely, the position of the air inlet is relatively high, and the risk that the cleaning liquid permeates into the air inlet is relatively low, so that the risk that the cleaning liquid permeates into the driving assembly can be reduced, and the floor brush is suitable for being soaked in the cleaning liquid for self-cleaning; and the self-cleaning effect of the floor brush can be improved.

Description

Technical Field

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

[0002] Floor scrubbers with cleaning functions such as floor washing and mopping can replace users to perform cleaning tasks such as floor washing, bringing many conveniences to users, and are therefore widely used. The floor brush of the floor scrubber is equipped with a motor gearbox, which is used to drive the roller brush to rotate for cleaning. However, the shell of the motor gearbox currently has heat dissipation holes, which means that the motor gearbox is prone to water ingress during the self-cleaning process of the floor scrubber and may cause short circuit failure and other problems. This makes it impossible to clean the floor brush by soaking it in water, resulting in poor self-cleaning effect of the current floor scrubber. Utility Model Content

[0003] The present application provides a cleaning device and a floor brush, which can reduce the risk of cleaning liquid infiltrating into a driving component, thereby facilitating improving the self-cleaning effect of the floor brush.

[0004] The present application provides a cleaning device, comprising: a main unit; and a floor brush, comprising: a floor brush main body connected to the main unit; a driving assembly connected to the floor brush main body; and a roller brush, drivingly connected to the driving assembly, the roller brush being used to clean a surface to be cleaned; wherein the floor brush main body has a first heat dissipation duct, an air inlet and a first air outlet, the air inlet being connected to the first air outlet through the first heat dissipation duct; the driving assembly comprises a sleeve and a motor accommodated in the sleeve, the air inlet being relatively far away from the surface to be cleaned from the sleeve.

[0005] In one embodiment of the present application, the floor brush has a first direction and a second direction that are perpendicular to each other. The floor brush can move along the first direction on the surface to be cleaned, and the second direction is also parallel to the surface to be cleaned; the floor brush also has a reference plane perpendicular to the second direction; wherein the orthographic projection of the air inlet on the reference plane is outside the orthographic projection of the sleeve on the reference plane.

[0006] In one embodiment of the present application, two ends of the floor brush in the first direction are respectively a first end and a second end; the roller brush is arranged close to the first end, and the air inlet is arranged relative to the roller brush away from the first end.

[0007] In one embodiment of the present application, the floor brush body includes: a handle portion, which is connected to the driving assembly; wherein the first heat dissipation duct includes a first air inlet channel and a first air outlet channel; the handle portion includes a handle body and a handle cover, the handle cover is covered on the outer side of the handle body, and the handle body is protruding with air duct ribs abutting against the handle cover, the air duct ribs surround the first air inlet channel, and the first air outlet channel is surrounded by the outside of the air duct ribs.

[0008] In one embodiment of the present application, the driving assembly also includes a channel component; the interior of the sleeve has a first cavity; the motor is accommodated in the first cavity, and the motor is transmission-connected to the roller brush; the channel component is embedded in the first cavity, and the channel component is connected to the motor.

[0009] In one embodiment of the present application, a second air inlet channel connected to the air inlet is formed between the channel component and the motor, a second air outlet channel connected to the first air outlet is formed between the channel component and the motor and the sleeve, the second air outlet channel is connected to the second air inlet channel and is arranged around the outer periphery of the second air inlet channel; the sleeve is sealed and connected to the floor brush body through the channel component.

[0010] In one embodiment of the present application, the motor includes: a casing having a second cavity connected to a second air inlet channel, and the casing is also provided with a first ventilation hole, and the second cavity is connected to the second air outlet channel through the first ventilation hole; an axial flow fan accommodated in the second cavity, and the axial flow fan is arranged close to the channel component; and a centrifugal fan accommodated in the second cavity, and the first ventilation hole is arranged around the centrifugal fan.

[0011] In one embodiment of the present application, the driving assembly further includes: a reduction box, through which the motor is transmission-connected to the roller brush, wherein the reduction box is accommodated in the first cavity, and the reduction box is sealedly connected to the sleeve.

[0012] In one embodiment of the present application, the first air outlet is located on a side of the floor brush body facing the surface to be cleaned.

[0013] In one embodiment of the present application, the floor brush further includes a dustproof part arranged at the air inlet.

[0014] In one embodiment of the present application, the cleaning device further includes: a roller assembly, including a rolling wheel and an elastic member, the rolling wheel is protruding relative to the outer side wall of the floor brush, and the rolling wheel is connected to the floor brush through the elastic member.

[0015] In one embodiment of the present application, the floor brush has a first direction and a second direction that are perpendicular to each other. The floor brush can move along the first direction on the surface to be cleaned, and the second direction is also parallel to the surface to be cleaned; in the second direction, the rolling wheel can move between a first position and a second position through an elastic member, and keep at least a portion of the rolling wheel located on the outside of the floor brush.

[0016] In one embodiment of the present application, roller assemblies are respectively provided on both sides of the floor brush.

[0017] In one embodiment of the present application, there are at least two groups of roller assemblies, each roller assembly is located on the same side of the floor brush in the second direction, and each roller assembly is distributed sequentially along the first direction.

[0018] Correspondingly, the present application also provides a floor brush, comprising: a floor brush body; a driving assembly connected to the floor brush body; and a roller brush, which is transmission-connected to the driving assembly; wherein the floor brush body has a first heat dissipation duct, an air inlet and a first air outlet, and the air inlet is connected to the first air outlet through the first heat dissipation duct; the driving assembly comprises a sleeve and a motor accommodated in the sleeve, and in the vertical direction, the air inlet is located above the sleeve.

[0019] The beneficial effect of the present application is as follows: Different from the prior art, the present application provides a cleaning device and a floor brush. The driving assembly of the floor brush drives the roller brush to rotate to clean the surface to be cleaned. In addition, the floor brush has a first heat dissipation duct, an air inlet and a first air outlet. The heat dissipation airflow enters the first heat dissipation duct from the air inlet to dissipate the heat of the driving assembly, and the heat dissipation airflow in the first heat dissipation duct is discharged from the first air outlet. In other words, the present application dissipates heat from the driving assembly by setting a first heat dissipation duct, replacing the method of dissipating heat by opening heat dissipation holes in the outer shell of the motor gear box in the prior art. In addition, the driving assembly of the present application includes a sleeve and a motor accommodated in the sleeve, and the air inlet is relatively far away from the surface to be cleaned relative to the sleeve, that is, the position of the air inlet is higher, and the risk of the cleaning liquid infiltrating into the air inlet is lower, thereby reducing the risk of the cleaning liquid infiltrating into the driving assembly. In this way, the floor brush of the present application is suitable for self-cleaning by immersion in the cleaning liquid, which is conducive to improving the self-cleaning effect of the floor brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the explosion structure of the first embodiment of the present application;

[0022] Figure 2 is a side structural schematic diagram of an embodiment of the ground brush of the present application;

[0023] Figure 3 It is a structural schematic diagram of an embodiment of the handle body of the present application;

[0024] Figure 4 yes Figure 2 The schematic diagram of the structure of the floor brush as seen from above is shown;

[0025] Figure 5 is a schematic diagram of an embodiment of the present application in which a roller brush is immersed in a cleaning liquid;

[0026] Figure 6 yes Figure 2The cross-sectional structure diagram of the ground brush in the AA direction is shown;

[0027] Figure 7 is a schematic diagram of the explosion structure of another embodiment of the ground brush of the present application;

[0028] Figure 8 is a schematic diagram of an embodiment of the present application in which the scroll wheel is in an extended state;

[0029] Fig. 9 It is a schematic diagram of an embodiment of the present application in which the scroll wheel is in a retracted state.

[0030] Description of reference numerals:

[0031] 10 floor brush; 10a surface to be cleaned; 11 floor brush body; 111 body; 112 suction port; 12 handle; 121 handle body; 122 handle cover; 123 air duct ribs; 124 avoidance hole; 125 limiting ribs; 126 second air outlet; 127 second ventilation hole; 13 first heat dissipation air duct; 131 first air inlet channel; 132 first air outlet channel; 14 air inlet; 15 first air outlet; 161 first end; 16 2 second end; 17 dustproof member; 20 driving assembly; 21 sleeve; 211 first cavity; 22 motor; 221 housing; 222 second cavity; 223 first ventilation hole; 224 axial flow fan; 225 centrifugal fan; 23 reduction box; 24 channel member; 25 second heat dissipation duct; 251 second air inlet channel; 252 second air outlet channel; 30 roller brush; 40 roller assembly; 41 rolling wheel; 42 elastic member; 43 limiting shaft. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0033] In this application, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The present application provides a cleaning device and a floor brush, which are described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0035] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the explosion structure of the first embodiment of the present application. Figure 2 1 is a schematic diagram of the side view structure of an embodiment of the present invention. Figure 2 The floor brush 10 shown omits the handle cover 122 described below.

[0036] In one embodiment, the cleaning device may be a cleaning device such as a floor scrubber. The cleaning device includes a main unit and a floor brush 10, and the main unit is connected to the floor brush 10. The user holds the main unit and pushes the floor brush 10 to move on the floor or the surface of the object to be cleaned, such that the floor brush 10 cleans the area it passes through.

[0037] The floor brush 10 according to the embodiment of the present application is described below.

[0038] In one embodiment, the floor brush 10 includes a floor brush body 11, which is connected to the main unit. The floor brush body 11 is the basic carrier of the floor brush 10, and plays a role in bearing and protecting the remaining components of the floor brush 10. The floor brush body 11 can also be provided with a walking mechanism such as a roller and a track wheel to support the floor brush body 11 to move on the surface to be cleaned 10a. The floor brush 10 also includes a driving assembly 20, which is connected to the floor brush body 11. The floor brush 10 also includes a roller brush 30, which is transmission-connected to the driving assembly 20, and the driving assembly 20 is used to drive the roller brush 30 to rotate to clean the surface to be cleaned 10a, specifically to drive the roller brush 30 to rotate around its central axis.

[0039] Specifically, the floor brush body 11 includes a main body 111 and a handle 12. The main body 111 is connected to the host, and the driving assembly 20 is connected to the main body 111 through the handle 12. The floor brush 10 has a first direction (such as Figure 1In the second direction (shown by the arrow X, the same below) and the second direction (as shown in Figure 1 The floor brush 10 is configured to be able to move along a first direction on the surface to be cleaned 10a, and the second direction is also parallel to the surface to be cleaned 10a. The driving assembly 20 is connected to one side of the main body 111 in the second direction through the handle 12, and the roller brush 30 is also connected to the other side of the main body 111 in the second direction through the corresponding handle 12. The following is explained by taking the handle 12 corresponding to the driving assembly 20 as an example. The interior of the roller brush 30 is hollow, and the driving assembly 20 is embedded in the interior of the roller brush 30 and is transmission-connected to the roller brush 30.

[0040] It should be noted that the cleaning device of this embodiment has a self-cleaning function. The cleaning device is equipped with a tray. When the cleaning device is placed on the tray, the cleaning device outputs cleaning liquid to the tray to clean the roller brush 30 of the floor brush 10 and its surrounding area. The cleaning liquid can be clean water, a detergent, or a mixture of the two, etc., which is not limited here. The floor brush body 11 is also provided with a suction port 112, and the suction port 112 is arranged relative to the roller brush 30, and the height of the suction port 112 is close to the height of the roller brush 30. The suction port 112 is used to absorb dirt to recover the dirt into the dirt storage component of the main unit, and then the dirt storage component is cleaned regularly or after the dirt in the dirt storage component reaches a certain amount. During the self-cleaning process of the cleaning device, the dirty cleaning liquid generated by cleaning the roller brush 30 and its surrounding area is recovered through the suction port 112.

[0041] Regarding the method of opening heat dissipation holes in the shell of the motor gearbox for heat dissipation, the motor gearbox cannot be waterproof due to the existence of the heat dissipation holes. Therefore, the liquid level of the cleaning liquid cannot be too high during the self-cleaning process of the cleaning device, and does not exceed the height of the suction port 112, which means that the suction port 112 cannot be well cleaned; and it is not allowed to remove the roller brush 30 to directly rinse the motor gearbox; in addition, the cleaning liquid remaining on the roller brush 30 in a wet state after cleaning is easy to penetrate into the motor gearbox, which will cause the motor gearbox to short-circuit and fail in the long run. Dirt is easy to remain at the suction port 112, and the suction port 112 is easy to be blocked by dirt in the long run, resulting in the attenuation of the suction force of the suction port 112, and a large amount of dirt remaining at the suction port 112 is easy to breed bacteria and produce odor. Users often need to use tools such as brushes to manually clean the suction port 112, which undoubtedly increases the user's usage burden and causes the user's experience to be extremely poor.

[0042] In view of this, please also refer to Figure 3 and Figure 4In this embodiment, the floor brush body 11 has a first heat dissipation duct 13, an air inlet 14 and a first air outlet 15. The air inlet 14 is connected to the first air outlet 15 through the first heat dissipation duct 13. The heat dissipation airflow enters the first heat dissipation duct 13 from the air inlet 14 to dissipate heat for the drive assembly 20. The heat dissipation airflow in the first heat dissipation duct 13 is discharged from the first air outlet 15. In this embodiment, the first heat dissipation duct 13 is provided to dissipate heat for the drive assembly 20, replacing the method of dissipating heat by opening heat dissipation holes in the shell of the motor gear box in the prior art, allowing the drive assembly 20 to adopt a sealed structure design. In addition, the drive assembly 20 of this embodiment includes a sleeve 21 and a motor 22 accommodated in the sleeve 21. The air inlet 14 is relatively far away from the surface to be cleaned 10a relative to the sleeve 21, that is, the position of the air inlet 14 is higher, and the risk of the air inlet 14 infiltrating the cleaning liquid is lower, thereby reducing the risk of the cleaning liquid infiltrating the drive assembly 20. In this way, the floor brush 10 of this embodiment is suitable for self-cleaning by immersing in the cleaning liquid, which is conducive to improving the self-cleaning effect of the floor brush 10. Furthermore, the present embodiment allows the driving assembly 20 to adopt a sealing structure design to adapt to a cleaning method of directly flushing dirt from the driving assembly 20 and the area around the suction port 112 , which is beneficial to improving the cleaning effect of the floor brush 10 .

[0043] Please also read Figure 5 , the tray 50 is provided with a water storage tank 51 for accumulating cleaning liquid. For the method of opening heat dissipation holes in the shell of the motor gear box for heat dissipation, the liquid level of the cleaning liquid in the water storage tank 51 cannot be too high and does not exceed the height of the suction port 112, which means that the suction port 112 and the area around the suction port 112 cannot be well cleaned. In this embodiment, the position of the air inlet 14 is relatively high, and the water storage tank 51 can be designed with a larger groove depth to allow more cleaning liquid to be injected, that is, the liquid level of the cleaning liquid in the water storage tank 51 is relatively high, so that the roller brush 30 is completely immersed in the cleaning liquid, and the roller brush 30 and the roller brush cavity in which it is located can be efficiently cleaned, thereby greatly improving the self-cleaning effect of the floor brush 10. When the roller brush 30 is immersed in the cleaning liquid, the suction port 112 and the scraper plate in the area around the suction port 112 are also immersed in the cleaning liquid, thereby greatly improving the self-cleaning effect of the suction port 112 and the area around the suction port, reducing the risk of the suction port 112 being blocked by residual dirt, and avoiding hygiene problems such as bacteria breeding and odor in the suction port 112 as much as possible. The user is saved from manually cleaning the roller brush 30 and the roller brush cavity where it is located, the suction port 112, and the scraper plate in the area around the suction port 112. Of course, the liquid level of the cleaning liquid cannot exceed the air inlet 14 to prevent the air inlet 14 from infiltrating the cleaning liquid.

[0044] Moreover, when the roller brush 30 is not wetted, the bristles on the roller brush 30 are in a fluffy state and have a certain thickness. When the roller brush 30 is completely immersed in the cleaning liquid, the bristles on the roller brush 30 are wetted and attached to the drum. At this time, the outer surface of the roller brush 30 is substantially flush with the outer surface of the drive assembly 20, and the distance between the two can be ignored. Therefore, in this embodiment, the air inlet 14 is arranged relative to the drive assembly 20 away from the surface to be cleaned 10a, which can ensure that the risk of the air inlet 14 infiltrating the cleaning liquid is low.

[0045] In one embodiment, the floor brush 10 further has a reference plane (eg, Figure 2 The orthographic projection of the air inlet 14 on the reference plane is outside the orthographic projection of the sleeve 21 on the reference plane. In this way, the air inlet 14 of this embodiment is relatively far away from the roller brush 30, which can further reduce the risk of the air inlet 14 infiltrating the cleaning liquid. In particular, when the roller brush 30 is completely immersed in the cleaning liquid, the orthographic projection of the air inlet 14 on the reference plane is outside the orthographic projection of the roller brush 30 in the wet state on the reference plane.

[0046] Furthermore, the two ends of the floor brush 10 in the first direction are respectively a first end 161 and a second end 162. The roller brush 30 is arranged close to the first end 161, and the roller brush 30 is completely immersed in the cleaning liquid during the self-cleaning process of the cleaning device. The air inlet 14 is arranged away from the first end 161 relative to the roller brush 30, that is, the air inlet 14 is arranged close to the rear of the floor brush 10, which can further reduce the risk of the air inlet 14 infiltrating the cleaning liquid.

[0047] Please also read Figure 6 , Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the brush in the AA direction.

[0048] In one embodiment, the drive assembly 20 has a second heat dissipation duct 25. The second heat dissipation duct 25 is fluidically connected to the first heat dissipation duct 13. The heat dissipation airflow is input from the air inlet 14, and enters the second heat dissipation duct 25 through the first heat dissipation duct 13 to dissipate heat for the drive assembly 20, and then the heat dissipation airflow in the second heat dissipation duct 25 enters the first heat dissipation duct 13, and is finally discharged from the first air outlet 15.

[0049] The first heat dissipation air channel 13 includes a first air inlet channel 131 and a first air outlet channel 132, and the air inlet 14 is connected to the first air outlet 15 through the first air inlet channel 131 and the first air outlet channel 132 in sequence. The second air inlet channel 251 includes a second air inlet channel 251 and a second air outlet channel 252. The first air inlet channel 131 is connected to the first air outlet channel 132 through the second air inlet channel 251 and the second air outlet channel 252 in sequence. The heat dissipation airflow enters the first air inlet channel 131 from the air inlet 14, and enters the second air inlet channel 251 through the first air inlet channel 131 to dissipate heat for the drive component 20, and then the heat dissipation airflow in the second air inlet channel 251 enters the first air outlet channel 132, and flows to the first air outlet 15 through the first air outlet channel 132 for discharge.

[0050] Furthermore, the handle portion 12 has a second air outlet 126. The first air outlet 15 is located in the main body portion 111. The first air outlet channel 132 is connected to the first air outlet 15 through the second air outlet 126, and the heat dissipation airflow in the first air outlet channel 132 flows through the second air outlet 126 to the first air outlet 15 for discharge.

[0051] In one embodiment, the handle portion 12 includes a handle body 121 and a handle cover 122. The handle cover 122 is covered on the outer side of the handle body 121, that is, the handle cover 122 is covered on the side of the handle body 121 away from the drive assembly 20, and the handle cover 122 and the handle body 121 can be fastened and locked by a buckle or other structure. The handle body 121 is provided with a duct rib 123, the duct rib 123 surrounds the first air inlet channel 131, and the first air outlet channel 132 is surrounded by the outside of the duct rib 123. The handle body 121 is grooved at the back of the handle cover 122 to form a second air outlet 126, and the second air outlet 126 is connected to the first air outlet 15 through the internal space of the main body 111. The air duct ribs 123 abut against the handle cover plate 122 to separate the air inlet 14 and the first air inlet channel 131 from the first air outlet channel 132, and can separate the heat dissipation airflow in the first air inlet channel 131 from the heat dissipation airflow in the first air outlet channel 132, so as to prevent the heat dissipation airflow with a higher temperature in the first air outlet channel 132 from interfering with the heat dissipation airflow in the first air inlet channel 131. The handle body 121 is further provided with a plurality of second ventilation holes 127, and the first air outlet channel 132 is connected to the second air outlet channel 252 through the plurality of second ventilation holes 127. Figure 3 The example shows that there are three second ventilation holes 127 , each of which is surrounded by the outside of the air duct rib 123 .

[0052] In one embodiment, the drive assembly 20 further includes a reduction box 23 and a channel member 24. The interior of the sleeve 21 has a first cavity 211. The motor 22 and the reduction box 23 are accommodated in the first cavity 211 and are locked in the radial direction by fasteners such as screws. The motor 22 is connected to the roller brush 30 through the reduction box 23. The channel member 24 is embedded in the first cavity 211, and the channel member 24 is sealed and connected to the motor 22. A second air inlet channel 251 connected to the air inlet 14 is formed between the channel member 24 and the motor 22, and a second air outlet channel 252 connected to the first air outlet 15 is formed between the channel member 24 and the motor 22 and the sleeve 21, and the second air outlet channel 252 is surrounded by the outer periphery of the second air inlet channel 251. The channel member 24 and the sleeve 21 are locked in the radial direction by fasteners such as screws to ensure smooth air intake and avoid turbulence of the heat dissipation airflow in the second air inlet channel 251 and the heat dissipation airflow in the second air outlet channel 252 to form a vortex. In addition, the sleeve 21 is sealedly connected to the floor brush body 11 through the channel component 24, specifically, the channel component 24 is sealedly connected to the handle portion 12, and the channel component 24 and the handle portion 12 are axially locked by fasteners such as screws, so that the drive component 20 and the handle portion 12 form a whole, and the drive component 20 is connected to the main body 111 through the handle portion 12, specifically, the handle portion 12 is locked to the side of the main body 111 in the second direction by fasteners such as screws.

[0053] Further, the motor 22 includes a housing 221, and the housing 221 is sealed and connected to the channel member 24. The housing 221 cooperates with the channel member 24 to form a second air inlet channel 251, and a second air outlet channel 252 is formed between the channel member 24 and the housing 221 and the sleeve 21. The housing 221 has a second cavity 222 in communication with the second air inlet channel 251, and the housing 221 is also provided with a first ventilation hole 223, and the second cavity 222 is in communication with the second air outlet channel 252 through the first ventilation hole 223. The number of the first ventilation holes 223 can be multiple, and each first ventilation hole 223 is distributed along the circumference of the housing 221. The motor 22 further includes an axial flow fan 224, which is accommodated in the second cavity 222. The axial flow fan 224 is arranged close to the channel member 24, specifically, the axial flow fan 224 is close to the channel member 24 relative to the first ventilation hole 223, and the axial flow fan 224 is used to guide the heat dissipation airflow in the second air inlet channel 251 into the second cavity 222. The motor 22 further includes a centrifugal fan 225, which is accommodated in the second cavity 222 and close to the first ventilation hole 223, specifically, the first ventilation hole is arranged around the centrifugal fan. The centrifugal fan 225 is used to guide the heat dissipation airflow in the second cavity 222 to be discharged to the second air outlet channel 252 through the first ventilation hole 223. In this embodiment, the axial flow fan 224 cooperates with the centrifugal fan 225 to improve the discharge efficiency of the heat dissipation airflow inside the motor 22, thereby facilitating the improvement of the heat dissipation effect of the motor 22. The remaining components of the motor 22 belong to the understanding scope of those skilled in the art, and will not be described in detail here.

[0054] The reduction box 23 is sealed and connected to the sleeve 21. The heat dissipation airflow discharged from the first ventilation hole 223 to the second air outlet channel 252 cannot escape from between the reduction box 23 and the sleeve 21, and can only flow along the second air outlet channel 252 to the first air outlet channel 132 for discharge. In addition, the reduction box 23 is designed with a sealed structure as a whole, which can achieve a good sealing and waterproof effect. The dustproof and waterproof level of the drive component 20 of this embodiment can reach IPX6. This embodiment allows the drive component 20 to be immersed in the cleaning liquid as a whole along with the roller brush 30, which greatly improves the self-cleaning effect of the roller brush 30 and its surrounding areas; and, after the roller brush 30 is removed, this embodiment allows the drive component 20 to be directly flushed, which can facilitate the user to clean the drive component 20 and the suction port 112. Since the handle portion 12 is located on the side of the floor brush 10 in the second direction, the air inlet 14 of this embodiment is located on the side of the floor brush 10, which further supports a cleaning method of directly flushing the drive component 20, the suction port 112 and the surrounding area, and can prevent the cleaning liquid from penetrating into the air inlet 14.

[0055] In one embodiment, the air inlet 14 faces away from the surface to be cleaned 10a, which can further reduce the risk of cleaning liquid infiltrating through the air inlet 14 during the self-cleaning process. In addition, the floor brush 10 also includes a dustproof member 17, which is arranged at the location of the air inlet 14, and the dustproof member 17 is used to block the air inlet 14. The dustproof member 17 can be a component with a filtering function such as a sponge. The dustproof member 17 can allow the heat dissipation airflow to pass through the air inlet 14, and prevent dust, water droplets, water vapor, etc. from directly splashing into the first heat dissipation air duct 13, thereby reducing the risk of blockage of the air inlet 14 and / or the first heat dissipation air duct 13.

[0056] Figure 2 The dustproof member 17 is embedded in the air inlet 14, and the upper edge of the dustproof member 17 is flush with the outer edge of the air inlet 14. Of course, the dustproof member 17 can also be located outside the air inlet 14, but the lower edge of the dustproof member 17 needs to be flush with the outer edge of the air inlet 14 to ensure the dustproof and waterproof functions of the dustproof member 17. Figure 2 The air inlet 14 is exemplarily shown to be directly connected to the outside of the floor brush 10, and the heat dissipation airflow directly enters the first heat dissipation duct 13 through the air inlet 14. Of course, the air inlet 14 may not be directly connected to the outside of the floor brush 10, for example, the air inlet 14 may be transferred to the outer surface of the floor brush 10 through a channel inside the floor brush 10.

[0057] Since the heat dissipation airflow is discharged through the first air outlet 15, the risk of the first air outlet 15 infiltrating the cleaning liquid is low, so the first air outlet 15 does not need to be arranged at a high position like the air inlet 14. Figure 4 As shown, in this embodiment, the first air outlet 15 is located on the side of the floor brush body 11 facing the surface to be cleaned 10a, which can prevent the first air outlet 15 from affecting the product appearance of the floor brush 10. Of course, the first air outlet 15 can be set at other positions of the floor brush 10, and the first air outlet 15 should be avoided as far as possible from being directed away from the surface to be cleaned 10a, so as to prevent external dust, water droplets, water vapor, etc. from entering the first air outlet 15 in a non-working state.

[0058] Please also read Figure 7 , Figure 7 It is a schematic diagram of the explosion structure of another embodiment of the ground brush of the present application.

[0059] In one embodiment, the cleaning device further includes a roller assembly 40. The rolling wheel 41 of the roller assembly 40 is protruding relative to the outer wall 18 of the floor brush 10, and specifically, the rolling wheel 41 protrudes relative to the outer wall 18 of the floor brush 10 in the second direction. In this way, when the floor brush 10 is close to the edge of the surface to be cleaned 10a for cleaning, the rolling wheel 41 replaces the floor brush 10 to contact obstacles such as the wall at the edge of the surface to be cleaned 10a, which can reduce the risk of scratches and friction caused by the outer wall of the floor brush 10 contacting the wall, which is conducive to ensuring the structural reliability of the floor brush 10, and at the same time, avoiding large-scale scratches on the floor brush 10 as much as possible to affect the product appearance of the floor brush 10. In addition, there is rolling friction between the rolling wheel 41 and the wall, which has a small friction resistance, so that the user can push the floor brush 10 to clean along the edge with little effort, which greatly improves the user's experience.

[0060] The roller assembly 40 further includes an elastic member 42. The rolling wheel 41 is connected to the floor brush 10 via the elastic member 42. In this way, the elastic member 42 can realize elastic contact between the rolling wheel 41 and the wall, that is, when the rolling wheel 41 contacts the wall, the elastic member 42 can play a buffering role to prevent the rolling wheel 41 and the wall from being damaged due to hard contact between the rolling wheel 41 and the wall.

[0061] Please also read Figure 8 and Fig. 9 , Figure 8 is a schematic diagram of an embodiment of the present application in which the scroll wheel is in an extended state, Fig. 9 It is a schematic diagram of an embodiment of the present application in which the scroll wheel is in a retracted state.

[0062] In one embodiment, the rolling wheel 41 is connected to the handle portion 12 of the floor brush 10 through an elastic member 42. Specifically, a avoidance hole 124 is provided on the handle cover plate 122, and the rolling wheel 41 is connected to the handle body 121 through the elastic member 42, and the rolling wheel 41 extends from the avoidance hole 124. The roller assembly 40 also includes a limiting shaft 43, which is passed through the rolling wheel 41 and connected to the handle body 121 through the elastic member 42. The elastic member 42 can be an elastic element such as a spring, and the elastic member 42 is sandwiched between the limiting shaft 43 and the handle body 121. The rolling wheel 41 can rotate around the limiting shaft 43, so that during the process of the floor brush 10 cleaning along the edge, the rolling wheel 41 and the wall surface are rolled and rubbed, which has a small friction resistance, so that the user can push the floor brush 10 with little effort. Furthermore, the length of the limiting shaft 43 is greater than the diameter of the avoidance hole 124 , and the limiting shaft 43 is used to cooperate with the handle cover 122 to limit the rolling wheel 41 from escaping from the avoidance hole 124 .

[0063] The handle body 121 is also provided with a limiting rib 125 opposite to the rolling wheel 41. The limiting rib 125 is used to abut the rolling wheel 41 when the rolling wheel 41 is squeezed back by the wall, so as to limit the rolling wheel 41 from being completely retracted into the floor brush 10, thereby ensuring that the rolling wheel 41 can replace the floor brush 10 to contact obstacles such as the wall at the edge of the surface to be cleaned 10a, thereby reducing the risk of the outer wall of the floor brush 10 contacting the wall and causing scratches, friction and other problems. The elastic member 42 is sleeved on the outer periphery of the limiting rib 125.

[0064] In the second direction, the rolling wheel 41 can move between the first position and the second position through the elastic member 42, and keep at least a portion of the rolling wheel 41 located outside the floor brush 10. Figure 8 As shown, when the rolling wheel 41 is not in contact with the wall, the rolling wheel 41 is in the first position. The elastic member 42 is in an extended state, and the elastic member 42 makes the limiting shaft 43 abut against the handle cover 122 around the avoidance hole 124, that is, the limiting shaft 43 abuts against the handle cover 122, and the limiting shaft 43 is used to cooperate with the handle cover 122 to limit the rolling wheel 41 from escaping from the avoidance hole 124. At this time, the length L1 of the rolling wheel 41 protruding relative to the outer wall 18 of the floor brush 10 in the second direction is less than or equal to 5 mm, that is, the distance between the end face of the rolling wheel 41 facing away from the floor brush 10 and the outer wall 18 is less than or equal to 5 mm, thereby ensuring that the protruding length of the rolling wheel 41 relative to the floor brush 10 is not too large, and can prevent the floor brush 10 from being too far away from the wall at the edge of the surface 10a to be cleaned, thereby affecting the edge cleaning effect of the floor brush 10. Fig. 9 As shown, when the rolling wheel 41 contacts the wall, the rolling wheel 41 is squeezed by the wall and retracts toward the floor brush 10, and the rolling wheel 41 is in the second position. The rolling wheel 41 compresses the elastic member 42 so that the elastic member 42 is in a compressed state, and the elastic member 42 will shrink and adjust with the distance between the floor brush 10 and the wall, thereby ensuring that the rolling wheel 41 maintains close contact with the wall. When the rolling wheel 41 abuts the limiting rib 125, the compression amount of the elastic member 42 reaches the maximum, and the length L2 of the rolling wheel 41 protruding relative to the outer wall 18 of the floor brush 10 in the second direction is greater than or equal to 0.5mm, that is, the distance between the end face of the rolling wheel 41 facing away from the floor brush 10 and the outer wall 18 is greater than or equal to 0.5mm, so as to ensure that the distance between the floor brush 10 and the wall is not too small, and can further reduce the risk of scratches, friction and other problems caused by the outer wall of the floor brush 10 contacting the wall.

[0065] It should be noted that the floor brush 10 is provided with roller assemblies 40 on both sides in the second direction. In this way, the floor brush 10 has roller assemblies 40 on either side in the second direction, which can reduce the risk of the outer walls on both sides of the floor brush 10 contacting the wall and causing scratches, friction and other problems. The floor brush 10 is provided with handles 12 on both sides in the second direction, and the roller assemblies 40 on each side of the floor brush 10 are arranged on the handle 12 on the same side.

[0066] Furthermore, the number of groups of roller assemblies 40 may be one group or multiple groups. When the number of groups of roller assemblies 40 is at least two groups, each roller assembly 40 is located on the same side of the floor brush 10 in the second direction, and each roller assembly 40 is distributed sequentially along the first direction. The at least two groups of roller assemblies 40 are provided on at least one side of the floor brush 10 in the second direction. In other words, each roller assembly 40 on the side of the floor brush 10 in the second direction is distributed sequentially along the first direction, and each roller assembly 40 on the side of the floor brush 10 can cooperate to maintain the distance between the floor brush 10 and the wall, thereby reducing the risk of problems such as scratches and frictions caused by accidental contact between the floor brush 10 and the wall.

[0067] In one embodiment, the floor brush 10 includes a floor brush body 11. The floor brush 10 also includes a driving assembly 20, which is connected to the floor brush body 11. The floor brush 10 also includes a roller brush 30, which is transmission-connected to the driving assembly 20. The floor brush body 11 has a first heat dissipation duct 13, an air inlet 14, and a first air outlet 15, and the air inlet 14 is connected to the first air outlet 15 through the first heat dissipation duct 13; the driving assembly 20 includes a sleeve 21 and a motor 22 accommodated in the sleeve 21, and in the vertical direction, the air inlet 14 is located above the sleeve 21.

[0068] The technical solution provided in the embodiments of the present application is described below in conjunction with specific application scenarios.

[0069] Application scenario 1:

[0070] The cleaning device may be a floor scrubber. The cleaning device includes a main unit and a floor brush 10. The handle portion 12 of the floor brush 10 has a first heat dissipation duct 13, an air inlet 14, and a first air outlet 15. The first heat dissipation duct 13 includes a first air inlet duct 131 and a first air outlet duct 132. The air inlet 14 is connected to the first air outlet 15 through the first air inlet duct 131 and the first air outlet duct 132 in sequence. The driving assembly 20 has a second heat dissipation duct 25. The second air inlet duct 251 includes a second air inlet duct 251 and a second air outlet duct 252. The first air inlet duct 131 is connected to the first air outlet duct 132 through the second air inlet duct 251 and the second air outlet duct 252 in sequence. The heat dissipation airflow enters the first air inlet channel 131 from the air inlet 14, and enters the second air inlet channel 251 through the first air inlet channel 131 to dissipate heat for the drive component 20. Then, the heat dissipation airflow in the second air inlet channel 251 enters the first air outlet channel 132, and flows through the first air outlet channel 132 to the first air outlet 15 for discharge.

[0071] Compared with the temperature of the driving assembly 20 in the working state, the air outside the floor brush 10 has a lower temperature and can be used as a heat dissipation airflow. When the driving assembly 20 needs to be cooled, the axial fan 224 and the centrifugal fan 225 inside the motor 22 cooperate to guide the heat dissipation airflow outside the floor brush 10 to enter the air inlet 14 through the dustproof member 17. The heat dissipation airflow enters the second cavity 222 inside the motor 22 through the first air inlet channel 131 and the second air inlet channel 251 to dissipate the heat of the driving assembly 20, and the centrifugal fan 225 guides the heat dissipation airflow in the second cavity 222 to be discharged to the second air outlet channel 252 through the first ventilation hole 223. The reduction gearbox 23 and the sleeve 21 are sealed and connected, and the heat dissipation airflow discharged from the first ventilation hole 223 to the second air outlet channel 252 cannot escape from between the reduction gearbox 23 and the sleeve 21, so that the heat dissipation airflow in the second air inlet channel 251 enters the first air outlet channel 132 through the second ventilation hole 127 on the handle body 121; the heat dissipation airflow in the first air outlet channel 132 flows to the first air outlet 15 through the second air outlet 126 on the back of the handle body 121 for discharge.

[0072] The air inlet 14 is far away from the surface to be cleaned 10a relative to the driving assembly 20, that is, the position of the air inlet 14 is higher, and the risk of the cleaning liquid infiltrating the air inlet 14 is lower, so the risk of the cleaning liquid infiltrating the driving assembly 20 can be reduced. In this way, the floor brush 10 is suitable for self-cleaning by immersing in the cleaning liquid of the base station, which is conducive to improving the self-cleaning effect of the floor brush 10. In addition, the driving assembly 20 is allowed to adopt a sealing structure design to adapt to the cleaning method of directly flushing the driving assembly 20 and the suction port 112 on the floor brush 10, which is conducive to improving the cleaning effect of the floor brush 10.

[0073] Application scenario 2:

[0074] The cleaning device may be a floor scrubber. The cleaning device includes a main unit and a floor brush 10. The user pushes the floor brush 10 close to the edge of the surface to be cleaned 10a, and pushes the floor brush 10 to move along the wall at the edge of the surface to be cleaned 10a, and the floor brush 10 cleans the edge of the surface to be cleaned 10a. A roller assembly 40 is provided on the side of the floor brush 10 in the second direction. The rolling wheel 41 of the roller assembly 40 is protruding relative to the outer wall of the floor brush 10 in the second direction. In this way, when the floor brush 10 is close to the edge of the surface to be cleaned 10a for cleaning, the rolling wheel 41 replaces the floor brush 10 to contact obstacles such as the wall at the edge of the surface to be cleaned 10a, which can reduce the risk of scratches, friction and other problems caused by the outer wall of the floor brush 10 contacting the wall, which is conducive to ensuring the structural reliability of the floor brush 10, and at the same time, avoiding large-scale scratches on the floor brush 10 as much as possible to affect the product appearance of the floor brush 10. In addition, there is rolling friction between the rolling wheel 41 and the wall surface, which has a small friction resistance, so that the user can push the floor brush 10 to clean along the edge with little effort, which greatly improves the user's experience. In addition, the rolling wheel 41 is connected to the floor brush 10 through an elastic member 42. In this way, the elastic member 42 can achieve elastic contact between the rolling wheel 41 and the wall surface, that is, when the rolling wheel 41 contacts the wall surface, the elastic member 42 can play a buffering role to prevent the rolling wheel 41 from hard contact with the wall surface and causing damage to the rolling wheel 41 and the wall surface.

[0075] The cleaning device and floor brush provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A cleaning device, characterized in that: include: Host; as well as Floor brush, including: A floor brush body connected to the host; A driving assembly connected to the floor brush body; and A roller brush is drivingly connected to the driving assembly, and the roller brush is used to clean the surface to be cleaned; Among them, the floor brush body has a first heat dissipation duct, an air inlet and a first air outlet, and the air inlet is connected to the first air outlet through the first heat dissipation duct; the driving assembly includes a sleeve and a motor accommodated in the sleeve, and the air inlet is away from the surface to be cleaned relative to the sleeve.

2. The cleaning device according to claim 1, characterized in that The floor brush has a first direction and a second direction perpendicular to each other, and the floor brush can move along the first direction on the surface to be cleaned, and the second direction is also parallel to the surface to be cleaned; the floor brush also has a reference plane perpendicular to the second direction; Wherein, the orthographic projection of the air inlet on the reference plane is located outside the orthographic projection of the sleeve on the reference plane.

3. The cleaning device according to claim 2, characterized in that: The two ends of the floor brush in the first direction are respectively a first end and a second end; the roller brush is arranged close to the first end, and the air inlet is arranged relative to the roller brush away from the first end.

4. The cleaning device according to claim 1, characterized in that The floor brush body comprises: A handle connected to the driving assembly; Wherein, the first heat dissipation air duct includes a first air inlet channel and a first air outlet channel; The handle portion includes a handle body and a handle cover, wherein the handle cover is covered on the outer side of the handle body, and the handle body is protruded with an air duct rib abutting against the handle cover, the air duct rib surrounds the first air inlet channel, and the first air outlet channel is surrounded outside the air duct rib.

5. The cleaning device according to claim 1, characterized in that: The driving assembly also includes a channel component; the interior of the sleeve has a first cavity; the motor is accommodated in the first cavity, and the motor is transmission-connected to the roller brush; the channel component is embedded in the first cavity, and the channel component is connected to the motor.

6. The cleaning device according to claim 5, characterized in that: A second air inlet channel connected to the air inlet is formed between the channel component and the motor, a second air outlet channel connected to the first air outlet is formed between the channel component, the motor and the sleeve, the second air outlet channel is connected to the second air inlet channel and is surrounded by the outer periphery of the second air inlet channel; the sleeve is sealed and connected to the floor brush body through the channel component.

7. The cleaning device according to claim 6, characterized in that: The motor comprises: A casing having a second cavity in communication with the second air inlet passage, and the casing also has a first ventilation hole, and the second cavity is in communication with the second air outlet passage through the first ventilation hole; an axial flow fan, contained in the second chamber, the axial flow fan being disposed close to the channel member; and The centrifugal fan is accommodated in the second cavity, and the first ventilation hole is arranged around the centrifugal fan.

8. The cleaning device according to claim 5, characterized in that: The drive assembly also includes: A reduction box, the motor is connected to the roller brush through the reduction box, wherein the reduction box is accommodated in the first cavity, and the reduction box is sealed to the sleeve.

9. The cleaning device according to claim 1, characterized in that: The first air outlet is located on a side of the floor brush body facing the surface to be cleaned.

10. The cleaning device according to claim 1, characterized in that The floor brush also includes a dustproof part arranged at the air inlet.

11. The cleaning device according to claim 1, characterized in that: The cleaning device also includes: The roller assembly comprises a rolling wheel and an elastic member. The rolling wheel is protrudingly arranged relative to the outer side wall of the floor brush, and the rolling wheel is connected to the floor brush through the elastic member.

12. The cleaning device according to claim 11, characterized in that The floor brush has a first direction and a second direction perpendicular to each other, the floor brush can move along the first direction on the surface to be cleaned, and the second direction is also parallel to the surface to be cleaned; In the second direction, the rolling wheel can move between a first position and a second position through the elastic member, and at least a portion of the rolling wheel is kept located outside the floor brush.

13. The cleaning device according to claim 11 or 12, characterized in that: The roller assemblies are respectively arranged on both sides of the floor brush.

14. The cleaning device according to claim 12, characterized in that The number of groups of the roller assemblies is at least two, each of the roller assemblies is located on the same side of the floor brush in the second direction, and each of the roller assemblies is distributed sequentially along the first direction.

15. A floor brush, characterized in that: include: Floor brush body; A driving assembly connected to the floor brush body; as well as A roller brush is drivingly connected to the driving assembly; Among them, the floor brush body has a first heat dissipation duct, an air inlet and a first air outlet, and the air inlet is connected with the first air outlet through the first heat dissipation duct; the driving assembly includes a sleeve and a motor accommodated in the sleeve, and in the vertical direction, the air inlet is located above the sleeve.

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