Cleaning device

Abstract

The embodiment of the utility model provides cleaning equipment. The cleaning equipment comprises a main body provided with a rolling brush cavity, and an air inlet communicated with the rolling brush cavity is formed in the bottom of the main body; the rolling brush is rotatably arranged in the rolling brush cavity, and a peripheral brush body of the rolling brush extends out of the air inlet to clean the surface to be cleaned; along the rotating axis of the rolling brush, the rolling brush cavity is provided with a first end wall and a second end wall which are oppositely arranged, the first end wall corresponds to the first end in position, and the first end wall is in a cambered surface shape sunken towards the outer side of the rolling brush cavity; or the main body comprises a rolling brush cover body, the rolling brush cover body is provided with a first cover body end wall and a second cover body end wall which are oppositely arranged along the rotating axis of the rolling brush, the first cover body end wall faces the first end, and the first cover body end wall is sunken towards the outer side of the rolling brush cavity, so that the first cover body end wall is in a smooth arc shape.

Description

[0001] The utility model is a divisional application of the utility model patent entitled “cleaning equipment” previously applied by the applicant.

[0002] The original application date is August 8, 2023.

[0003] The original application number is: CN202322130734.9.

[0004] Original utility model name: cleaning equipment. Technical Field

[0005] The utility model relates to the technical field of cleaning appliances, in particular to a cleaning device. Background Art

[0006] With the improvement of living standards, people's requirements for the quality of life are getting higher and higher. Cleaning equipment has a good cleaning effect on dust and garbage, so it is becoming more and more popular.

[0007] For example, a cleaning device such as a sweeping robot may include a main body, a fan, a roller brush, a side brush, and a dust collecting device. During operation, the side brush can sweep the garbage on the surface to be cleaned to the air inlet of the main body within its cleaning area. A roller brush is provided in the main body of the sweeping robot, and the roller brush contacts the surface to be cleaned and rotates to lift up the dust and garbage on the surface to be cleaned. In this process, the suction negative pressure generated by the fan sucks the dust and garbage into a dust collecting device such as a dust box or a dust bag through the air duct assembly, thereby realizing the collection of dry garbage on the surface to be cleaned.

[0008] However, in actual application, it is found that during the operation of the cleaning device, a dead angle with large wind resistance is formed in the roller brush chamber, so that the garbage in the roller brush chamber cannot be smoothly sucked into the dust collecting device. In this case, the cleaning effect of the cleaning device is poor. Utility Model Content

[0009] In order to at least partially solve the problems existing in the prior art, an embodiment of the utility model provides a cleaning device, which aims to reduce the situation where garbage cannot be smoothly sucked into the dust collecting device, thereby improving the cleaning effect of the cleaning device.

[0010] In a first aspect, a cleaning device comprises:

[0011] A main body, wherein the main body is provided with a rolling brush cavity, and an air inlet communicating with the rolling brush cavity is provided at the bottom of the main body;

[0012] A roller brush, the roller brush is rotatably disposed in the roller brush cavity, and the outer peripheral brush body of the roller brush extends out of the air inlet to clean the surface to be cleaned; and

[0013] The roller brush has a first end and a second end disposed opposite to each other along its rotation axis, wherein the first end is a free end;

[0014] Along the rotation axis of the roller brush, the roller brush cavity has a first end wall and a second end wall that are arranged opposite to each other, the first end wall corresponds to the position of the first end, and the first end wall is in the shape of an arc surface that is concave toward the outside of the roller brush cavity; and / or

[0015] The main body includes a roller brush cover body, which has a first cover body end wall and a second cover body end wall relatively arranged along the rotation axis of the roller brush, the first cover body end wall faces the first end, and the first cover body end wall is recessed toward the outer side of the roller brush cavity so that the first cover body end wall is in a smooth arc shape.

[0016] Exemplarily, the roller brush chamber has a suction port for communicating with the negative pressure device, and the distance from the suction port to the first end is smaller than the distance to the second end; and / or

[0017] The second end is rotatably connected to the main body.

[0018] Exemplarily, the main body includes a roller brush housing and a roller brush cover, and the roller brush housing is provided with a first groove; and

[0019] The roller brush cover is provided with a second groove, and the roller brush cover can be detachably buckled onto the roller brush shell, the first groove and the second groove are connected to form the roller brush cavity, and the air inlet of the roller brush cavity is located on the roller brush cover.

[0020] Exemplarily, the roller brush housing has a first housing end wall and a second housing end wall which are arranged opposite to each other along the rotation axis of the roller brush, the first housing end wall faces the first end, and the first housing end wall is recessed toward the outside of the roller brush cavity, so that the first housing end wall is in a smooth arc shape; and / or

[0021] The first end is a garbage collection end.

[0022] Exemplarily, the roller brush cover has a first side and a second side that are relatively arranged, the first side is connected to the roller brush shell through a slot and an insert block that can be inserted into the slot, wherein one of the slot and the insert block is arranged on the first side, and the other of the slot and the insert block is arranged on the roller brush shell.

[0023] Exemplarily, the first side is provided with one of the anti-foolproof protrusion and the anti-foolproof opening, the roller brush shell is provided with the other of the anti-foolproof protrusion and the anti-foolproof opening, and the anti-foolproof protrusion enters the anti-foolproof opening before the slot and the plug block are plugged in.

[0024] Exemplarily, the fool-proof protrusion or the fool-proof opening provided on the roller brush housing is located on the first housing end wall; and / or

[0025] The fool-proof protrusion and the fool-proof opening are both located outside the roller brush cavity.

[0026] Exemplarily, the second side is connected to the roller brush shell via a snap assembly, and the snap assembly includes a snap and a snap adapter that can be detachably snapped together, one of the snap and the snap adapter is arranged on the second side, and the other of the snap and the snap adapter is arranged on the roller brush shell.

[0027] In a first aspect, a cleaning device comprises:

[0028] A main body, wherein the main body is provided with a rolling brush cavity, and an air inlet communicating with the rolling brush cavity is provided at the bottom of the main body;

[0029] A roller brush, the roller brush is rotatably disposed in the roller brush cavity, and the outer peripheral brush body of the roller brush extends out of the air inlet to clean the surface to be cleaned; and

[0030] The main body comprises a roller brush cover and a roller brush housing, wherein the roller brush cover has a first side and a second side which are arranged opposite to each other.

[0031] The first side is connected to the roller brush housing via a slot and an insert block that can be inserted into the slot, wherein one of the slot and the insert block is arranged on the first side, and the other of the slot and the insert block is arranged on the roller brush housing.

[0032] Exemplarily, the first side is provided with one of the anti-foolproof protrusion and the anti-foolproof opening, the roller brush shell is provided with the other of the anti-foolproof protrusion and the anti-foolproof opening, and the anti-foolproof protrusion enters the anti-foolproof opening before the slot and the plug block are plugged in.

[0033] Exemplarily, the fool-proof protrusion or the fool-proof opening provided on the roller brush housing is located on the first housing end wall; and / or

[0034] The fool-proof protrusion and the fool-proof opening are both located outside the roller brush cavity.

[0035] Exemplarily, the second side is connected to the roller brush shell via a snap assembly, and the snap assembly includes a snap and a snap adapter that can be detachably snapped together, one of the snap and the snap adapter is arranged on the second side, and the other of the snap and the snap adapter is arranged on the roller brush shell.

[0036] The cleaning device includes: a main body and a roller brush, the main body is provided with a roller brush cavity, and the bottom of the main body is provided with an air inlet connected to the roller brush cavity; the roller brush is rotatably arranged in the roller brush cavity, and the peripheral brush body of the roller brush extends out of the air inlet to clean the surface to be cleaned; the roller brush cavity has a first end wall and a second end wall that are relatively arranged, the first end wall corresponds to the position of the first end, and the first end wall is in an arc shape that is concave toward the outside of the roller brush cavity. Once the garbage cannot be smoothly sucked in through the suction port, the garbage will be thrown up again along the first end wall as the roller brush rotates, so as to be smoothly sucked into the suction port, and will not form a dead angle with large wind resistance in the roller brush cavity.

[0037] Or the roller brush cover has a first cover end wall and a second cover end wall that are relatively arranged along the rotation axis of the roller brush, the first cover end wall faces the first end, and the first cover end wall is recessed toward the outside of the roller brush cavity, so that the first cover end wall is in a smooth arc shape. With this arrangement, once the garbage cannot pass through one end of the roller brush smoothly, it will fall on the first cover end wall. The smooth arc-shaped first cover end wall can prevent the garbage from staying on it, and the garbage will slide along the smooth arc surface through the air inlet to the surface to be cleaned, avoiding the formation of a dead corner with large wind resistance in the roller brush cavity and residual garbage. Then, the roller brush can continue to clean the garbage.

[0038] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0039] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0041] Figure 1 A three-dimensional view of a cleaning device according to an exemplary embodiment of the present invention;

[0042] Figure 2 for Figure 1 A perspective view of the cleaning device shown in another angle;

[0043] Figure 3 for Figure 1 A bottom view of the cleaning device shown in FIG.

[0044] Figure 4 for Figure 1 A partial enlarged view of the cleaning device shown in FIG.

[0045] Figure 5 for Figure 1 A schematic diagram of a cleaning device shown in FIG.

[0046] Figure 6 for Figure 1 An exploded view of a portion of the cleaning device shown in FIG.

[0047] Figure 7 for Figure 6 An exploded view of another angle of the cleaning device shown in FIG.

[0048] Figure 8 for Figure 6 An exploded view of the cleaning device shown in FIG.

[0049] Fig. 9 for Figure 8 A cross-sectional view of the cleaning device shown in FIG.

[0050] Fig.10 for Figure 6 An exploded view of the cleaning device shown in FIG.

[0051] Fig.11 for Fig.10 A cross-sectional view of the cleaning apparatus shown in FIG.

[0052] Fig.12 for Figure 6 A cross-sectional view of the cleaning device shown in FIG.

[0053] The above drawings include the following reference numerals:

[0054] 100, main body; 101, roller brush cavity; 102, air inlet; 103, opening; 104, suction port; 105, first end wall; 106, second end wall; 110, roller brush housing; 111, first housing end wall; 112, second housing end wall; 120, roller brush cover; 121, first cover end wall; 122, second cover end wall; 123, first side; 124, second side; 131, first groove; 1 32. Second groove; 140. Slot; 150. Insert block; 160. Foolproof protrusion; 170. Foolproof opening; 180. Buckle assembly; 181. Buckle; 182. Buckle adapter; 200. Roller brush; 201. First end; 202. Second end; 210. Peripheral brush body; 310. First side brush; 311. First cleaning area; 320. Second side brush; 400. Partition; 500. Air duct assembly. DETAILED DESCRIPTION

[0055] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0056] The embodiment of the utility model provides a cleaning device. The cleaning device includes but is not limited to a sweeping robot. The cleaning device of the embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings. Figure 1-2 It is a three-dimensional diagram of a cleaning device according to an embodiment of the present application. Figure 3 FIG. 2 is a bottom view of a cleaning device according to an embodiment of the present application. Figure 3 As shown, the cleaning device may include a main body 100 , a roller brush 200 , and a first side brush 310 .

[0057] The main body 100 may be provided with a rolling brush chamber 101. The rolling brush chamber 101 may be used to communicate with a negative pressure device (not shown in the figure). Specifically, the rolling brush chamber 101 may have a suction port 104, such as Fig. 9 As shown. The suction port 104 can be set at any suitable position on the roller brush chamber 101, such as the top. The suction port 104 can be used to communicate with a negative pressure device. The cleaning device may include a negative pressure device. The negative pressure device can be installed on the main body 100. The negative pressure device includes but is not limited to a fan or an air pump. Of course, the negative pressure device can also be independent of the cleaning device. From the appearance, the negative pressure device is set independently of the cleaning device, but the two can always maintain fluid communication or be fluidly connected to each other when needed. An air inlet 102 may be provided at the bottom of the main body 100. The air inlet 102 can connect the roller brush chamber 101 and the outside.

[0058] For example, see Figure 6 and Figure 7, the cleaning device may further include an air duct assembly 500 and a dust collecting device. The air duct assembly 500 may be made of any suitable material, including but not limited to rigid or elastic materials. Elastic materials include but are not limited to rubber and silicone. The air duct assembly 500 may extend in any suitable shape such as a straight line or an arc. Along the extension direction of the air duct assembly 500, the air duct assembly 500 may have an air inlet and an air outlet. The air inlet of the air duct assembly 500 may be connected to the suction port 104 of the roller brush chamber 101 by any suitable means such as welding, bonding, connecting with a connector or integrally formed. The dust collecting device may include a dust collecting container and a dust collecting container storage bin. The dust collecting container storage bin is arranged on the main body 100, and the dust collecting container storage bin may be used to place the dust collecting container. The air outlet of the air duct assembly 500 may be connected to the dust collecting container storage bin by any suitable means such as welding, bonding, connecting with a connector or integrally formed, so as to be connected to the dust collecting container. The dust collecting container includes but is not limited to a dust box or a dust bag.

[0059] Continue to see Figure 3 , the roller brush 200 is rotatably arranged in the roller brush cavity 101. The peripheral brush body 210 of the roller brush 200 can extend out of the air inlet 102, so that the surface to be cleaned can be cleaned. Under normal circumstances (for example, when using a cleaning device, the cleaning device is placed on the surface to be cleaned), the rotation axis PP of the roller brush 200 is horizontal or parallel to the surface to be cleaned. There is always a part of the peripheral brush body 210 of the roller brush 200 that can extend out of the roller brush cavity 101. This part of the peripheral brush body 210 can contact the surface to be cleaned to raise dust and garbage during the rotation of the roller brush 200. The surface to be cleaned includes but is not limited to the ground or the table top. The roller brush 200 can adopt various types of roller brushes known in the art or that may appear in the future, including but not limited to a cantilever roller brush connected to the main body 100 at only one end, or an ordinary roller brush connected to the main body 100 at both ends.

[0060] The first side brush 310 is rotatably disposed at the bottom of the main body 100. In order to expand the cleaning area of ​​the cleaning device in one stroke, the first side brush 310 is closer to the outside of the main body 100 along the extension direction of the rotation axis PP of the roller brush 200. Figure 1 and Figure 2 The vertical direction extends along the height direction of the cleaning device. For the sake of clarity, the vertical direction is described in the following embodiments. The first side brush 310 can generally be centered around an axis extending along the vertical direction (such as Figure 3 and Figure 4 The first side brush 310 sweeps a circular cleaning area during the rotation process. For the sake of clarity, the area swept by the first side brush 310 during the rotation process may be referred to as the first cleaning area 311. Figure 5As shown. The first side brush 310 can collect dust and garbage on the outside toward the air inlet 102. In addition, since the roller brush 200 is usually arranged between the two driving wheels and cannot be close to the edge of the main body 100, the ability to clean dust and garbage at the corners of the surface to be cleaned is poor. The first side brush 310 can usually be located at the edge of the bottom of the main body 100, so that the dust and garbage at the corners of the surface to be cleaned can be cleaned to the bottom of the air inlet 102.

[0061] When the cleaning device is working, the roller brush 200 and the first side brush 310 can rotate on the surface to be cleaned. The roller brush 200 can extend through the air inlet 102, so that the dust and garbage on the surface to be cleaned can be lifted, and these dust and garbage can be attached to the roller brush 200 and thus guided to the suction port 104 during the rotation of the roller brush 200. Under the action of the negative pressure device, dust and garbage can enter the dust collection container through the roller brush chamber 101 and the air duct assembly 500 in turn. The roller brush chamber 101 and the air inlet 102 are usually located in the middle of the bottom of the main body 100. In this way, it is difficult for the roller brush 200 to clean the garbage at the edge of the surface to be cleaned. In this way, the first side brush 310 needs to cooperate with the roller brush 200 for cleaning. Specifically, the first side brush 310 can clean the garbage at the edge of the surface to be cleaned to the bottom of the air inlet 102, and then clean it through the roller brush 200.

[0062] The inventors have found that when the cleaning device in the related art is in use, the first side brush 310 is easy to bring out garbage such as hair in the roller brush chamber 101 during the rotation process, which is mainly related to the position between the first side brush 310 and the air inlet 102. By setting the first side brush 310 so that the projection of the first cleaning area 311 on the plane where the air inlet 102 is located does not intersect with the air inlet 102, the above problem can be solved to a large extent. It can be understood that non-intersection refers to the area where the first side brush 310 does not pass through the air inlet 102, that is, the first cleaning area 311 formed by the rotation of the first side brush 310 does not have an overlapping part with the air inlet 102. In the illustrated embodiment, the air inlet 102 is substantially parallel to the ground, and along the horizontal direction, the air inlet 102 can be arranged adjacent to or spaced apart from the first cleaning area 311. With such a configuration, when garbage rotates on the roller brush 200, part of the garbage may extend out of the air inlet 102 (for example, part of the hair is entangled on the roller brush 200, and part of it extends out of the air inlet 102), and the first side brush 310 will not bring out the garbage on the roller brush 200 or in the roller brush cavity 101, and the garbage on the roller brush 200 can be smoothly swept into the roller brush cavity 101 and collected in the dust collection container. Therefore, the cleaning effect of the cleaning device is better. Especially for garbage such as hair, the cleaning device can prevent the hair from being entangled between the roller brush 200 and the first side brush 310. Therefore, the anti-entanglement effect of the cleaning device is better.

[0063] In some embodiments, in the horizontal direction, the first cleaning area 311 of the first side brush 310 when rotating can be spaced apart from the air inlet 102. That is, the first side brush 310 can be far enough away from the air inlet 102 to achieve that the projection of the first cleaning area 311 on the plane where the air inlet 102 is located does not intersect with the air inlet 102. To achieve this purpose, in some embodiments, the size of the bristles of the first side brush 310 can be shortened, or the first side brush 310 can be set at a more peripheral position of the bottom of the main body 100. Of course, the size of the air inlet 102 can also be reduced.

[0064] For example, participating Figure 5 , an opening 103 is provided at the bottom of the main body 100, the peripheral brush body 210 extends out of the opening 103, a partition 400 is provided in a partial area of ​​the opening 103 close to the first cleaning area 311, and the area of ​​the opening 103 not covered by the partition 400 forms an air inlet 102. Specifically, an opening 103 may be provided at the bottom of the main body 100. The peripheral brush body 210 of the roller brush 200 extends out of the opening 103. A partition 400 may be provided in a partial area of ​​the opening 103 close to the first cleaning area 311. This partial area is closer to the first cleaning area 311 than other areas of the opening 103. The partition 400 is provided on this partial area, which can well separate the first side brush 310 from the roller brush 200. The partition 400 can be fixed at any position as long as the partial area can be shielded. Exemplarily, the partition 400 can be connected to the edge of the opening 103. The edge can be adjacent to the first cleaning area 311. In the illustrated embodiment, the opening 103 is generally rectangular. The first side brush 310 is arranged at the corner of the opening 103 near the front of the main body 100. The separator 400 can extend from the edge of the corner of the rectangular opening toward the center of the opening 103. In the illustrated embodiment, the separator 400 can be arranged generally in the horizontal direction. The shape of the separator 400 can be arbitrary, including but not limited to the rectangle shown in the figure, for example, it can also be a triangle or a fan. Among them, the curvature of the arcuate edge of the fan can be consistent with the curvature of the outer contour of the first cleaning area 311. Since a part of the opening 103 is blocked by the separator 400, the area of ​​the opening 103 not covered by the separator 400 can form the air inlet 102. In this way, the separator 400 can prevent the garbage on the roller brush 200 from being taken out by the first side brush 310. The cleaning device has little modification to the existing structure, thereby reducing the cost of design and manufacturing.

[0065] Exemplarily, the partition 400 can separate the roller brush chamber 101 and the first cleaning area 311 in the vertical direction. It can be understood that the vertical direction can be a direction extending from top to bottom, or a direction extending from bottom to top. In this way, the roller brush chamber 101 can still have a sufficiently large volume, and there is no need to change the position of the first side brush 310 to be closer to the edge of the main body 100, and the first side brush 310 can still be in its original position. However, it may cause the size of the air inlet 102 to become smaller. However, through reasonable design, the size of the air inlet 102 can be increased along other directions, so that the overall size of the air inlet 102 does not change much, thereby minimizing the impact on wind resistance.

[0066] For example, the separator 400 may be in the form of a sheet. By designing the separator 400 in this way, on the one hand, compared with other complex structures, the structure of the separator 400 may be relatively simple and occupy less space, thereby reducing the manufacturing cost of the cleaning device; on the other hand, the separator 400 in the form of a sheet may make it more flexible, especially when the separator 400 is made of an elastic material, when the separator 400 touches the surface to be cleaned, the force of the separator 400 on the surface to be cleaned is small, so that no large friction is generated, thereby avoiding the generation of large noise.

[0067] For example, the opening 103 may be substantially rectangular. With such a configuration, the main body 100 may be easily processed and manufactured. Furthermore, the projection of the roller brush 200 on the plane where the opening 103 is located may be substantially rectangular. The opening 103 is more compatible with the shape of the roller brush 200, and the structure of the cleaning device may be more compact. Furthermore, the corners of the opening 103 may be conveniently provided with the separator 400.

[0068] Exemplarily, the separator 400 may be a flexible member or an elastic member made of an elastic material. The elastic material includes but is not limited to silicone or rubber. During the movement of the cleaning device, especially when crossing an obstacle, the separator 400 may contact the surface to be cleaned. After the separator 400 made of elastic material contacts the surface to be cleaned, it will not make excessive noise due to friction. Therefore, the use experience of the cleaning device is better. As mentioned above, the peripheral brush body 210 of the roller brush 200 will extend out of the roller brush chamber 101 through the opening 103. When the separator 400 is arranged on the plane where the opening 103 is located, if the separator 400 is made of a rigid material, the separator 400 may form an obstruction to the peripheral brush body 210, resulting in a large friction force, which may not only cause serious wear of the roller brush 200, but also generate a large noise. In addition, when the cleaning device walks on the surface to be cleaned, the separator 400 may contact the surface to be cleaned. If the separator 400 is made of a rigid material, the separator 400 will generate a large noise when it contacts the surface to be cleaned. In the case where the separator 400 is a flexible or elastic member, the separator 400 can be appropriately deformed as the roller brush 200 rotates to reduce wear and reduce noise. Of course, the present application does not exclude the solution that the separator 400 is made of a rigid material. In this case, the separator 400 can be arranged to protrude from the edge of the opening 103 toward the outside of the roller brush chamber 101 to avoid friction between the separator 400 and the roller brush 200 during rotation. It can be understood that the peripheral brush body 210 of the roller brush 200 includes bristles and rubber brushes arranged on the peripheral side of the roller brush 200.

[0069] For example, Figure 6-7As shown in Figure 12, the roller brush 200 may have a first end 201 and a second end 202. The first end 201 and the second end 202 may be arranged relatively to each other along the rotation axis PP of the roller brush 200. The first end 201 of the roller brush 200 may be a garbage gathering end. The garbage gathering end means that garbage can be gathered at this end. The first end 201 being a garbage gathering end may be realized by the following embodiments. In one group of embodiments, the roller brush 200 is provided with bristles, which are arranged on the peripheral side of the roller brush 200, and the bristles include a fixed end and a free end. The fixed end of the bristles is connected to the roller brush 200, and the end facing away from the fixed end of the bristles is a free end, which gradually tilts toward the first end 201 of the roller brush 200 in the direction from the fixed end of the bristles to the free end. With such a configuration, when the roller brush 200 rotates, the bristles can guide most of the garbage to gather toward the first end 201 of the roller brush 200. In another set of embodiments, the roller brush 200 may be truncated cone-shaped, and the diameter of the first end 201 of the roller brush 200 is smaller than the diameter of the second end 202, so that when hair is entangled on the roller brush 200, the hair moves toward the first end 201 of the roller brush 200 along the slope formed by the diameter difference between the first end 201 and the second end 202 of the roller brush 200. In another set of embodiments, the roller brush cavity is provided with a plurality of cleaning components (not marked in the figure), and the plurality of cleaning components are arranged at intervals along the direction from the second end 202 to the first end 201 of the roller brush 200, and the cleaning components are used to scrape off the garbage on the roller brush to prevent entanglement. The cleaning component includes a free end and a fixed end, and the fixed end of the cleaning component is connected to the inner wall of the roller brush cavity, and the end facing away from the fixed end of the cleaning component is the free end of the cleaning component, and the free end can contact the roller brush, and gradually tilts toward the first end 201 of the roller brush 200 along the fixed end of the cleaning component toward the free end. When the roller brush 200 rotates, the roller brush 200 contacts the cleaning component, and the cleaning component guides the garbage on the roller brush to move toward the first end 201 of the roller brush. In another set of embodiments, a rubber brush is provided on the roller brush 200, and the rubber brush is arranged on the circumference of the roller brush 200, and is arranged in a spiral along the circumference of the roller brush 200. The rubber brush includes a first end and a second end, the first end of the rubber brush is arranged on the first end 201 of the roller brush 200, and the second end of the rubber brush is arranged on the second end 202 of the roller brush 200, that is, the rubber brush extends from the first end 201 of the roller brush 200 to the second end 201. From the first end of the rubber brush to the second end, the width of the rubber brush becomes larger and larger. The width of the rubber brush is the width from the side where the rubber brush is connected to the roller brush to the side facing away from the roller brush. When the rubber brush is arranged in this way, when the roller brush 200 rotates, the shape formed by the rotation of the rubber brush is a truncated cone, so that the hair on the roller brush 200 can be guided to the first end 201 of the roller brush 200. Of course, for a common roller brush, garbage may be collected at both the first end 201 and the second end 202 , in which case the first end 201 may also be referred to as a garbage collection end. The first side brush 310 may be located at the first end 201 of the roller brush 200 .Since the garbage at the garbage collection end is more concentrated, it is particularly important that the projection of the first cleaning area 311 on the plane where the air inlet 102 is located does not intersect with the air inlet 102, thereby ensuring that the garbage passes through the garbage collection end smoothly without being brought out by the first side brush 310.

[0070] For example, Figure 3 As shown, the cleaning device may further include a second side brush 320. The second side brush 320 is rotatably disposed at the bottom of the main body 100. The second side brush 320 forms a second cleaning area when rotating. The second side brush 320 may be located at the second end 202 of the roller brush 200. That is, the first side brush 310 and the second side brush 320 may be located at both ends of the roller brush 200, respectively. Exemplarily, the second side brush 320 and the first side brush 310 may be symmetrically disposed on the left and right sides of the main body 100. The second side brush 320 is substantially similar in structure and function to the first side brush 310. The rotation direction of the first side brush 310 and the rotation direction of the second side brush 320 may be opposite. Of course, the present application does not exclude embodiments in which the rotation directions of the two are the same. For the sake of brevity, the structure of the second side brush 320 itself will not be further described in detail herein. Exemplarily, the second end 202 is a non-garbage gathering end. Based on this, the projection of the second cleaning area of ​​the second side brush 320 on the plane where the air inlet 102 is located intersects with the air inlet 102 or does not intersect with the air inlet 102. Since all garbage can move toward the first end 201, there is relatively less garbage at the second end 202. Therefore, even if the projection of the second cleaning area on the plane where the air inlet 102 is located intersects with the air inlet 102, it is difficult for the second side brush 320 to bring out the garbage. Of course, the projection of the second cleaning area on the plane where the air inlet 102 is located does not intersect with the air inlet 102, which can completely prevent the second side brush 320 from bringing out the garbage. In an embodiment where the cleaning device includes a partition 400, the partition 400 can also be arranged on the edge of the opening 103 adjacent to the second cleaning area.

[0071] The garbage is gathered toward the first end 201 of the roller brush 200, which can also bring the following benefits: the aforementioned suction port 104 can be set close to the first end 201, so that the garbage can be collected into the dust collection container by setting the suction port 104. Moreover, the corresponding air duct assembly 500 can also be set close to one side of the main body 100, so that the structure inside the main body 100 can be more compact. For the aforementioned roller brushes that can make the garbage gather toward the first end 201, there is less garbage at the second end 202. Exemplarily, the distance from the suction port 104 on the roller brush chamber 101 to the first end 201 of the roller brush 200 can be less than the distance to the second end 202 of the roller brush 200. With such a configuration, the distance from the suction port 104 to the garbage gathering end is shorter, and the garbage passing through the garbage gathering end can pass through the suction port 104 more quickly. The cleaning effect of the cleaning device is better. Exemplarily, the first end 201 of the roller brush 200 extends to the suction port 104 , corresponding to the position of the suction port 104 . When garbage gathers at the first end 201 of the roller brush 200 , the suction port can suck away the garbage on the first end 201 .

[0072] Exemplarily, the second end 202 of the roller brush 200 is rotatably connected to the main body 100. The first end 201 of the roller brush 200 may be a free end. That is, the first end 201 of the roller brush 200 may be spaced apart from the main body 100. With such an arrangement, the roller brush 200 may be a cantilever roller brush. In this way, the space at the garbage collection end is larger, so that garbage can pass more easily. Moreover, the installation and removal of the roller brush 200 and the main body 100 can be facilitated.

[0073] Exemplarily, the first end 201 of the roller brush 200 can be a garbage gathering end, the first end 201 is a free end, the first end 201 of the roller brush 200 corresponds to the position of the suction port 104, and the projection of the first cleaning area 311 on the plane where the air inlet 102 is located does not intersect with the air inlet 102. When the roller brush 200 rotates, since the first end 201 of the roller brush 200 is a garbage gathering end, the garbage is moved to the first end 201 of the roller brush 200, and the first end 201 of the roller brush 200 is a free end, then the garbage is separated from the roller brush 200 at the first end 201 of the roller brush 200, so as to achieve the purpose of preventing the roller brush 200 from winding. Further, the garbage is separated from the roller brush at the first end 201 of the roller brush 200, and can be sucked by the suction port 104 to be collected in the dust collection container. The garbage is guided to the first end 201 of the roller brush 200. There will be more garbage at the first end 201 of the roller brush 200, that is, there will be more garbage at the roller brush cavity where the first end 201 of the roller brush 200 is located. The garbage will partially extend out of the opening. At this time, a partition is set at the opening so that the projection of the first cleaning area 311 on the plane where the air inlet 102 is located does not intersect with the air inlet 102, thereby preventing the first side brush from bringing out the garbage in the roller brush cavity or on the roller brush when rotating. In this way, when the garbage enters the roller brush compartment, it is guided to move toward the first end 201 of the roller brush 200, so that the garbage is separated from the roller brush 200 at the first end 201 of the roller brush 200, and then, the garbage is directly sucked away by the suction port 104 of the first end 201 of the roller brush 200. The structural designs of the cleaning device from the second end 202 to the first end 201 of the roller brush 200 are mutually complementary and closely related to achieve the purpose of preventing the roller brush from winding and preventing the garbage from being brought out by the first side brush.

[0074] For example, Fig.12As shown, the roller brush chamber 101 may have a first end wall 105 and a second end wall 106. The first end wall 105 and the second end wall 106 may be arranged opposite to each other along the rotation axis PP of the roller brush 200. The first end wall 105 may correspond to the position of the first end 201 of the roller brush 200. The first end 201 of the roller brush 200 is arranged close to the first end wall 105. When the first end 201 of the roller brush 200 is a free end, the first end wall 105 may be opposite to the first end 201 of the roller brush 200, and there may be a gap between the first end wall 105 and the first end 201 of the roller brush 200. The first end wall 105 may be in the shape of an arc surface that is concave toward the outside of the roller brush chamber 101, that is, the first end wall 105 is concave outward along the second end 202 of the roller brush 200 toward the first end 201. With such a configuration, once the garbage cannot be smoothly sucked in through the suction port 104 (for example, there is a lot of garbage and the suction port cannot suck in all the garbage at once), it will fall on the first end wall 105. The arc-shaped first end wall 105 can prevent the garbage from staying on it, and the garbage will slide along the first end wall 105 through the air inlet 102 to the surface to be cleaned. Then, the roller brush 200 can continue to clean the garbage. Alternatively, the garbage will be thrown up again along the first end wall 105 as the roller brush 200 rotates, so as to be smoothly sucked into the suction port 104, and will not form a dead angle with large wind resistance in the roller brush chamber 101. In addition, when the roller brush 200 rotates with the garbage, the first end wall 105 can exert a centripetal force toward the roller brush 200 on the garbage that contacts it, thereby preventing the garbage from being thrown out by the roller brush 200.

[0075] For example, Figure 6-12 As shown, the main body 100 may include a roller brush housing 110 and a roller brush cover 120. The roller brush housing 110 may be provided with a first groove 131. The roller brush cover 120 may be provided with a second groove 132. The roller brush cover 120 may be detachably buckled onto the roller brush housing 110. When the roller brush cover 120 is buckled onto the roller brush housing 110, the first groove 131 and the second groove 132 may be connected, thereby forming a roller brush chamber 101. The air inlet 102 of the roller brush chamber 101 may be located on the roller brush cover 120. When the roller brush cover 120 is removed from the roller brush housing 110, the relevant personnel may install the roller brush 200 onto the roller brush housing 110, or remove the roller brush 200 from the roller brush housing 110. When the roller brush 200 is installed onto the roller brush housing 110, the relevant personnel may buckle the roller brush cover 120 onto the roller brush housing 110. In this way, the roller brush 200 can be fixed in the roller brush chamber 101. Therefore, the cleaning device can be easily installed and removed from the roller brush 200, thereby reducing the time cost of replacing the roller brush 200.

[0076] In the embodiment where the cleaning device includes the partition 400 , the opening 103 may be disposed on the roller brush cover 120 . In the embodiment where the roller brush chamber 101 has the suction port 104 , the suction port 104 may be disposed on the roller brush housing 110 .

[0077] Exemplarily, the roller brush cover 120 may have a first cover end wall 121 and a second cover end wall 122. The first cover end wall 121 and the second cover end wall 122 may be arranged relatively along the rotation axis PP of the roller brush 200. The first cover end wall 121 may face the first end 201 of the roller brush 200. The second cover end wall 122 may face the second end 202 of the roller brush 200. The first cover end wall 121 may be recessed toward the outside of the roller brush cavity 101, that is, the first cover end wall 121 may be recessed outwardly along the second end 202 of the roller brush 200 toward the first end 201, so that the first cover end wall 121 may be in a smooth arc shape. With such a configuration, once the garbage cannot pass through the first end 201 of the roller brush 200 smoothly, it will fall on the first cover end wall 121. The smooth arc-shaped first cover end wall 121 can prevent the garbage from staying thereon, and the garbage will slide along the smooth arc surface through the air inlet 102 to the surface to be cleaned. Then, the roller brush 200 can continue to clean the garbage. Moreover, when the roller brush 200 rotates with the garbage, the first cover end wall 121 with a smooth arc shape can exert a force toward the roller brush 200 on the garbage contacting it, thereby preventing the garbage from being thrown out by the roller brush 200.

[0078] For example, see Figure 7 and Fig.10 The roller brush housing 110 may have a first housing end wall 111 and a second housing end wall 112. The first housing end wall 111 and the second housing end wall 112 may be arranged relatively to each other along the rotation axis PP of the roller brush 200. The first housing end wall 111 may face the first end 201 of the roller brush 200. The second housing end wall 112 may face the second end 202 of the roller brush 200. The first housing end wall 111 may be recessed toward the outside of the roller brush chamber 101 so that the first housing end wall 111 may be in a smooth arc shape. With such an arrangement, when the roller brush 200 rotates with garbage, the first housing end wall 111 in a smooth arc shape may exert a centripetal force toward the roller brush 200 on the garbage contacting it, thereby preventing the garbage from being thrown out by the roller brush 200.

[0079] See also Fig.12 When the roller brush cover 120 is buckled on the roller brush housing 110, the first smoothly curved cover end wall 121 and the first smoothly curved housing end wall 111 can be connected to form the first end wall 105. The second smoothly curved cover end wall 122 and the second smoothly curved housing end wall 112 can be connected to form the second end wall 106.

[0080] For example, participating Fig.11, the roller brush cover 120 may have a first side 123 and a second side 124. The first side 123 and the second side 124 may be arranged relative to each other in a direction perpendicular to the rotation axis PP of the roller brush 200. The first side 123 may be connected to the roller brush housing 110 via a slot 140 and an insert block 150. The slot 140 may be arranged on one of the first side 123 and the roller brush housing 110. The insert block 150 may be arranged on the other of the first side 123 and the roller brush housing 110. In the embodiment shown in the figure, the slot 140 may be arranged on the roller brush housing 110; the insert block 150 may be arranged on the first side 123. The insert block 150 may be inserted into the slot 140, so that the first side 123 may be connected to the roller brush housing 110. The relevant personnel must move the roller brush cover 120 according to a predetermined insertion angle so that the insert block 150 can be inserted into the slot 140. When the slot 140 and the plug block 150 are plugged in, the first side 123 of the roller brush housing 110 can rotate relative to the roller brush cover 120. The plug block 150 can be removed from the slot 140, so that the first side 123 can be separated from the roller brush housing 110. Along the rotation axis PP of the roller brush 200, the plug block 150 can have any number, such as one, two, three or more. The plug block 150 and the slot 140 can be set one-to-one. That is, each plug block 150 can be inserted into the corresponding slot 140.

[0081] Exemplarily, the first side 123 of the roller brush housing 110 may be provided with one of the fool-proof protrusion 160 and the fool-proof opening 170. The roller brush housing 110 may be provided with the other of the fool-proof protrusion 160 and the fool-proof opening 170. In the embodiment shown in the figure, the fool-proof opening 170 may be provided on the first side 123. The fool-proof protrusion 160 may be provided on the roller brush housing 110. The fool-proof protrusion 160 may enter the fool-proof opening 170 before the slot 140 and the plug block 150 are plugged in. With such a configuration, the fool-proof protrusion 160 may enter the fool-proof opening 170 before the slot 140 and the plug block 150 are plugged in. Then, the slot 140 and the plug block 150 may be plugged in. In this way, when the relevant personnel moves the roller brush cover 120 according to the non-predetermined insertion angle, the fool-proof protrusion 160 cannot enter the fool-proof opening 170, so that the relevant personnel can directly see that the slot 140 and the plug block 150 are separated and the two cannot be plugged in. In this way, the relevant personnel need to readjust the roller brush cover 120 to move the roller brush cover 120 according to the predetermined insertion angle. Therefore, the fool-proof effect of the cleaning device is better, thereby improving the installation efficiency of the roller brush housing 110 and the roller brush cover 120.

[0082] For example, participating Fig. 9, the foolproof protrusion 160 or foolproof opening 170 provided on the roller brush housing 110 can be provided on the first cover end wall 121. Exemplarily, the first housing end wall 111 can also be provided on the first housing end wall 111. In the embodiment shown in the figure, the foolproof protrusion 160 and the first housing end wall 111 can be spaced apart in the up and down direction. This position is relatively easier to observe, so that relevant personnel can more intuitively understand the predetermined insertion angle of the roller brush cover 120.

[0083] For example, the foolproof protrusion 160 and the foolproof opening 170 can be located outside the roller brush chamber 101. In this way, the foolproof protrusion 160 and the foolproof opening 170 will not affect the passage of garbage through the roller brush chamber 101, and the cleaning effect of the cleaning device is better. In addition, the garbage will not contaminate the foolproof protrusion 160 and the foolproof opening 170.

[0084] Exemplarily, the second side 124 of the roller brush cover 120 can be connected to the roller brush housing 110 through a snap assembly 180. The snap assembly 180 may include a snap 181 and a snap adapter 182 that are detachably snapped. The second side 124 may be provided with one of the snap 181 and the snap adapter 182. The roller brush housing 110 may be provided with the other of the snap 181 and the snap adapter 182. Exemplarily, the snap adapter 182 may be a slot or an opening, etc. In the embodiment shown in the figure, the snap 181 may be provided on the second side 124. The snap adapter 182 may be provided on the roller brush housing 110. When the slot 140 and the plug block 150 are plugged in, the first side 123 of the roller brush housing 110 may rotate relative to the roller brush cover 120. When the second side 124 is rotated to contact the roller brush housing 110, the snap 181 may be snapped into the snap adapter 182. In this way, the roller brush shell 110 and the roller brush cover 120 can be connected. Conversely, the buckle 181 can be unfastened with the buckle adapter 182, and the relevant personnel can rotate the first side 123 of the roller brush shell 110 relative to the roller brush cover 120, and then the roller brush shell 110 and the roller brush cover 120 can be disassembled. There can be many types of buckles 181, such as buckles made of elastic materials, or movable buckles with elastic parts such as springs. In short, as long as the buckle 181 can be connected and unfastened with the buckle adapter 182. With this arrangement, the roller brush shell 110 and the roller brush cover 120 can be easily connected and disassembled. Along the rotation axis PP of the roller brush 200, the buckle assembly 180 can have any number, such as one, two, three or more.

[0085] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0086] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0087] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0088] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0089] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cleaning device, characterized in that: include: A main body, wherein the main body is provided with a rolling brush cavity, and an air inlet communicating with the rolling brush cavity is provided at the bottom of the main body; A roller brush, the roller brush is rotatably disposed in the roller brush cavity, and the outer peripheral brush body of the roller brush extends out of the air inlet to clean the surface to be cleaned; and The roller brush has a first end and a second end disposed opposite to each other along its rotation axis, wherein the first end is a free end; Along the rotation axis of the roller brush, the roller brush cavity has a first end wall and a second end wall that are arranged opposite to each other, the first end wall corresponds to the position of the first end, and the first end wall is in the shape of an arc surface that is concave toward the outside of the roller brush cavity; and / or The main body includes a roller brush cover body, which has a first cover body end wall and a second cover body end wall relatively arranged along the rotation axis of the roller brush, the first cover body end wall faces the first end, and the first cover body end wall is recessed toward the outer side of the roller brush cavity so that the first cover body end wall is in a smooth arc shape.

2. The cleaning device according to claim 1, characterized in that The roller brush chamber has a suction port for communicating with the negative pressure device, and the distance from the suction port to the first end is smaller than the distance to the second end; and / or The second end is rotatably connected to the main body.

3. The cleaning device according to claim 1, characterized in that The main body comprises a roller brush housing and a roller brush cover, and the roller brush housing is provided with a first groove; and The roller brush cover is provided with a second groove, and the roller brush cover can be detachably buckled onto the roller brush shell, the first groove and the second groove are connected to form the roller brush cavity, and the air inlet of the roller brush cavity is located on the roller brush cover.

4. The cleaning device according to claim 3, characterized in that The roller brush housing comprises a first housing end wall and a second housing end wall which are arranged opposite to each other along the rotation axis of the roller brush, the first housing end wall faces the first end, and the first housing end wall is recessed toward the outer side of the roller brush cavity, so that the first housing end wall is in a smooth arc shape; and / or The first end is a garbage collection end.

5. The cleaning device according to claim 4, characterized in that The roller brush cover has a first side and a second side that are arranged opposite to each other, the first side is connected to the roller brush shell through a slot and an insert block that can be inserted into the slot, wherein one of the slot and the insert block is arranged on the first side, and the other of the slot and the insert block is arranged on the roller brush shell.

6. The cleaning device according to claim 5, characterized in that The first side is provided with one of the anti-foolproof protrusion and the anti-foolproof opening, and the roller brush shell is provided with the other of the anti-foolproof protrusion and the anti-foolproof opening. The anti-foolproof protrusion enters the anti-foolproof opening before the slot and the plug-in block are plugged in.

7. The cleaning device according to claim 6, characterized in that The fool-proof protrusion or the fool-proof opening provided on the roller brush housing is located on the first housing end wall; and / or The fool-proof protrusion and the fool-proof opening are both located outside the roller brush cavity.

8. The cleaning device according to claim 5, characterized in that The second side is connected to the roller brush shell via a snap assembly, which includes a snap and a snap adapter that can be detachably snapped together, one of the snap and the snap adapter is arranged on the second side, and the other of the snap and the snap adapter is arranged on the roller brush shell.

9. A cleaning device, characterized in that: include: A main body, wherein the main body is provided with a rolling brush cavity, and an air inlet communicating with the rolling brush cavity is provided at the bottom of the main body; A roller brush, the roller brush is rotatably disposed in the roller brush cavity, and the outer peripheral brush body of the roller brush extends out of the air inlet to clean the surface to be cleaned; and The main body includes a roller brush cover and a roller brush shell, the roller brush cover has a first side and a second side arranged opposite to each other, the first side is connected to the roller brush shell through a slot and an insert block that can be inserted into the slot, wherein one of the slot and the insert block is arranged on the first side, and the other of the slot and the insert block is arranged on the roller brush shell.

10. The cleaning device according to claim 9, characterized in that The first side is provided with one of the anti-foolproof protrusion and the anti-foolproof opening, and the roller brush shell is provided with the other of the anti-foolproof protrusion and the anti-foolproof opening. The anti-foolproof protrusion enters the anti-foolproof opening before the slot and the plug-in block are plugged in.

11. The cleaning device according to claim 10, characterized in that The fool-proof protrusion or the fool-proof opening provided on the roller brush housing is located on the first housing end wall; and / or The fool-proof protrusion and the fool-proof opening are both located outside the roller brush cavity.

12. The cleaning device according to claim 9, characterized in that The second side is connected to the roller brush shell via a snap assembly, which includes a snap and a snap adapter that can be detachably snapped together, one of the snap and the snap adapter is arranged on the second side, and the other of the snap and the snap adapter is arranged on the roller brush shell.

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