Cleaning device

Abstract

The invention relates to the technical field of cleaning, and provides cleaning equipment which comprises a machine shell and a rolling brush middle sweeping structure arranged at the bottom of the machine shell, the rolling brush middle sweeping structure comprises a rolling brush body, a rolling brush cover, a floating support and a scraping strip, the rolling brush cover is arranged on the machine shell, a dust inlet is formed in the rolling brush cover, the surface of the rolling brush cover sinks inwards to form a containing groove, and the scraping strip is arranged in the containing groove. The accommodating groove surrounds the dust inlet; the floating support is arranged in the containing groove and connected to the rolling brush cover in an up-down floating mode, the rolling brush body is rotationally connected to the rolling brush cover, and the rolling brush body penetrates through the dust inlet to brush the ground to be cleaned; the scraping strip is arranged on the floating support, extends into the dust inlet and is located behind the rolling brush body in the advancing direction of the cleaning equipment. The floating support used for driving the scraping strip to float up and down relative to the ground to be cleaned is contained in the containing groove, so that the dust inlet space of the dust inlet is not affected by the floating support, and the cleaning efficiency of the rolling brush body is improved.

Description

Technical Field

[0001] The present invention relates to the field of cleaning technology, and in particular provides a cleaning device. Background Art

[0002] With the improvement of people's living standards, the requirements for environmental sanitation have also become higher accordingly.

[0003] Currently, floor sweepers have been widely used indoors such as in homes and offices, and can perform cleaning operations on the ground. For example, they can sweep, and can also be equipped with additional functions such as vacuuming and mopping. Specifically, the floor sweeper first rolls the brush on the garbage on the ground to concentrate the garbage, and then uses a scraping strip to send the garbage attached to the ground into the dust box.

[0004] In order to achieve that the scraping strip can float and sweep relative to the ground to meet the requirements of different grounds, an elastic floating bracket is set at the dust inlet corresponding to the rolling brush. The elastic floating bracket is used to support the scraping strip, so that the scraping strip can float relative to the ground. However, the elastic floating bracket will occupy the dust suction area of the dust inlet, resulting in a decrease in the cleaning efficiency of the floor sweeping mechanism. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a cleaning device, aiming to solve the problem that the cleaning efficiency of the existing cleaning device is reduced due to the setting of the elastic floating bracket at the dust inlet.

[0006] To achieve the above purpose, the technical solution adopted in the embodiments of the present application is:

[0007] The embodiments of the present application provide a cleaning device, including a housing and a rolling brush and middle sweeping structure provided at the bottom of the housing. The rolling brush and middle sweeping structure includes a rolling brush main body for brushing the ground to be cleaned. The rolling brush and middle sweeping structure further includes:

[0008] A rolling brush cover, which is provided on the housing, and an air inlet is opened on the rolling brush cover. The surface of the rolling brush cover is recessed inward to form a receiving groove, and the receiving groove surrounds the air inlet;

[0009] A floating bracket, which is placed in the receiving groove and is connected to the rolling brush cover in a vertically floating manner. The rolling brush main body is rotatably connected to the rolling brush cover, and the rolling brush main body passes through the air inlet to brush the ground to be cleaned;

[0010] A scraping strip, which is provided on the floating bracket, and the scraping strip extends into the air inlet. Along the forward direction of the cleaning device, the scraping strip is located behind the rolling brush main body.

[0011] Advantages of the embodiments of the present application: For the cleaning device provided in the present application, the floating bracket used to drive the squeegee to float up and down relative to the ground to be cleaned is arranged in the accommodation groove of the roller brush cover, so that the dust inlet space of the dust inlet will not be affected by the floating bracket, thereby improving the cleaning efficiency of the roller brush body.

[0012] In some embodiments, the floating bracket has a hinged end and a connection end opposite to the hinged end. The hinged end is rotatably connected to the inner wall of the accommodation groove, and the connection end is used for connecting the squeegee so that the squeegee floats up and down relative to the roller brush cover.

[0013] By adopting the above technical solution, the hinged end can be hingedly rotated relative to the inner wall of the accommodation groove to drive the squeegee on the connection end to float up and down relative to the roller brush cover.

[0014] In some embodiments, the floating bracket includes a rotating shaft, a connecting plate spaced apart from the rotating shaft, and a connecting arm for connecting the rotating shaft and the connecting plate. The rotating shaft is hinged to the inner wall of the accommodation groove, and the connecting plate is used for connecting the squeegee.

[0015] By adopting the above technical solution, specifically, the floating bracket is similar to a frame structure to reduce or decrease the interference effect on the operation of the roller brush body. The rotating shaft is rotatably connected to the inner wall of the accommodation groove, the connecting plate is used to fix the squeegee, and the connecting arm is used to connect the rotating shaft and the connecting plate, so that when the rotating shaft rotates relative to the inner wall of the accommodation groove, it drives the connecting plate and the squeegee to float up and down relative to the ground to be cleaned.

[0016] In some embodiments, a clamping portion is provided in the accommodation groove, and the rotating shaft is clamped in the clamping portion, and the rotating shaft can rotate relative to the roller brush cover around its own central axis.

[0017] By adopting the above technical solution, the clamping portion is used to limit the rotating shaft to rotate around the central axis of the rotating shaft in the accommodation groove, reducing the risk of the rotating shaft coming out of the accommodation groove.

[0018] In some embodiments, the floating bracket further includes a reinforcing member, one end of the reinforcing member is connected to the rotating shaft and the other end is connected to the connecting plate.

[0019] By adopting the above technical solution, the reinforcing member can improve the structural strength of the frame structure of the floating bracket, reduce the probability of deformation of the frame structure of the floating bracket, and at the same time, the force at each part of the frame structure of the floating bracket is more uniform during the rotation process, so that the squeegee can be lifted and lowered smoothly relative to the ground to be cleaned.

[0020] In some embodiments, the connecting arm and the connecting plate extend out of the accommodating groove to the outside in the first position state, and the connecting arm and the connecting plate extend into the accommodating groove in the second position state.

[0021] By adopting the above technical solution, in the first position state, the connecting arm and the connecting plate synchronously extend out of the accommodating groove to the outside and drive the scraping strip to be in an extended state; in the second position state, the connecting arm and the connecting plate synchronously extend into the accommodating groove and drive the scraping strip to be in a retracted state.

[0022] In some embodiments, the cleaning device further includes a flexible member, and the flexible member is used to connect the connecting plate and the roller brush cover to provide an elastic force for the connecting plate to extend out of the dust inlet.

[0023] By adopting the above technical solution, the flexible member is used to provide the elastic force required for the scraping strip to float up and down relative to the ground to be cleaned.

[0024] In some embodiments, the flexible member includes a flexible main body, a first connecting portion provided at one end of the flexible main body, and a second connecting portion provided at the other end of the flexible main body. The first connecting portion is connected to the roller brush cover in a plug-in manner, and the second connecting portion is connected to the connecting plate in a plug-in manner;

[0025] The thickness of the flexible main body increases from the middle position along the direction towards the first connecting portion; and / or the thickness of the flexible main body increases from the middle position along the direction towards the second connecting portion.

[0026] By adopting the above technical solution, the first connecting portion of the flexible member forms a seamless dust suction channel with the housing, so that dust enters the dust box in the housing along the scraping strip, the connecting plate and the flexible member, better realizing the sealing of the roller brush middle sweeping structure, and also being more conducive to improving the cleaning efficiency of the cleaning device; at the same time, the flexible main body presents a gradually changing structure of "thin in the middle and thick at both ends", which can further assist the scraping strip to float and deform and rebound and recover.

[0027] In some embodiments, a plurality of plug-in columns are provided on the roller brush cover at intervals, and plug-in slots adapted to the plug-in columns are formed on the first connecting portion;

[0028] At least one of the plug-in columns includes a column body connected to the roller brush cover and an anti-detachment portion provided on the main body; the plug-in slot includes a first groove portion and a second groove portion communicated with each other. The first groove portion is used to accommodate the column body, and the second groove portion is used to accommodate the anti-detachment portion.

[0029] By adopting the above technical solution, a plurality of insertion posts are adaptively connected to corresponding insertion slots to improve the connection stability between the flexible member and the roller brush cover; specifically, the first groove portion wraps the column body, and the second groove portion wraps the anti-disengagement portion to improve the sealing performance of the connection between the flexible member and the roller brush cover.

[0030] In some embodiments, the scraping strip includes an insertion portion inserted into the connection end and a scraping portion connected to the insertion portion of the scraping strip;

[0031] The thickness of the insertion portion gradually increases in the direction towards the connection end; and / or, the scraping portion is in a sheet shape, and the thickness of the scraping portion remains consistent in the direction towards the insertion portion.

[0032] By adopting the above technical solution, the insertion portion with a relatively large thickness can improve the connection strength between the scraping strip and the connection end of the floating bracket. At the same time, the overall weight of the scraping strip is increased, so that the connection end of the floating bracket naturally extends out of the accommodation groove under the action of gravity; and, the scraping portion is in a sheet shape and has a consistent thickness to provide an upward elastic force for the floating bracket relative to the ground to be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 Is a bottom view of the cleaning device provided by the embodiment of the present invention;

[0035] Figure 2 Is a sectional view of the cleaning device provided by the embodiment of the present invention;

[0036] Figure 3 Is an exploded view of the middle sweeping structure of the roller brush of the cleaning device provided by the embodiment of the present invention;

[0037] Figure 4 Is Figure 3 An enlarged view of part A in;

[0038] Figure 5 Is a structural schematic diagram of the middle sweeping structure of the roller brush of the cleaning device provided by the embodiment of the present invention;

[0039] Figure 6 Is an exploded view of the middle sweeping structure of the roller brush of the cleaning device provided by the embodiment of the present invention from another angle;

[0040] Figure 7 Is a sectional view of the middle sweeping structure of the roller brush of the cleaning device provided by the embodiment of the present invention;

[0041] Figure 8 Another structural schematic diagram of the middle sweeping structure of the roller brush of the cleaning device provided by the embodiment of the present invention;

[0042] Figure 9 Another sectional view of the middle sweeping structure of the roller brush of the cleaning device provided by the embodiment of the present invention;

[0043] Figure 10 Is Figure 9 An enlarged view of part B.

[0044] Among them, each reference numeral in the figure:

[0045] 100, housing; 200, middle sweeping structure of the roller brush; 201, main body of the roller brush;

[0046] 202, roller brush cover; 203, dust inlet; 204, accommodating groove; 205, clamping portion; 206, inserting column; 207, column body; 208, anti - detachment portion;

[0047] 209, floating bracket; 210, hinged end; 211, connecting end; 212, rotating shaft; 213, connecting plate; 214, connecting arm;

[0048] 215, scraping strip; 216, inserting portion; 217, scraping portion;

[0049] 218, reinforcing member;

[0050] 219, flexible member; 220, flexible main body; 221, first connecting portion; 222, second connecting portion; 223, inserting groove; 224, first groove portion; 225, second groove portion. Detailed implementation manners

[0051] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0052] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0054] In the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The working process of the floor sweeper is to first roll the brush to gather the garbage on the ground, and then use the scraping strip to send the garbage attached to the ground into the dust box.

[0056] In order to improve the adaptability of the scraping strip to different floors, an elastic floating bracket is usually arranged at the dust inlet corresponding to the rolling brush to support the scraping strip by using the elastic floating bracket, so that the scraping strip can float relative to the ground. However, since the elastic floating bracket is installed inside the dust inlet, the elastic floating bracket will occupy the dust inlet area of the dust inlet, resulting in a decrease in the cleaning coverage rate and thus a decrease in the cleaning efficiency of the floor sweeping mechanism.

[0057] In view of this, the present application provides a cleaning device. A receiving groove is formed by inward depression on the surface of the rolling brush cover of the rolling brush middle sweeping structure in the rolling brush. Moreover, the receiving groove surrounds the dust inlet. Therefore, the floating bracket is arranged in the receiving groove to drive the scraping strip to float up and down relative to the rolling brush cover. In this way, the floating bracket is arranged around the periphery of the dust inlet, so that the dust suction area of the dust inlet is not affected, that is, the cleaning coverage area of the cleaning device is not affected, thereby improving the cleaning efficiency of the floor sweeping mechanism to a certain extent.

[0058] Please refer to Figures 1 to 3 , an embodiment of the present application provides a cleaning device, including a housing 100 and a rolling brush middle sweeping structure 200 arranged at the bottom of the housing 100. The rolling brush middle sweeping structure 200 includes a rolling brush main body 201 for brushing the ground to be cleaned, a rolling brush cover 202, a floating bracket 209, and a scraping strip 215.

[0059] The rolling brush cover 202 is arranged on the housing 100. Moreover, a dust inlet 203 is opened on the rolling brush cover 202, and a receiving groove 204 is formed by inward depression on the surface of the rolling brush cover 202. The receiving groove 204 surrounds the dust inlet 203;

[0060] The floating bracket 209 is placed inside the accommodation groove 204 and is connected to the roller brush cover 202 in a vertically floating manner. The roller brush body 201 is rotatably connected to the roller brush cover 202, and the roller brush body 201 passes through the dust inlet 203 to brush the ground to be cleaned;

[0061] The scraping strip 215 is provided on the floating bracket 209, and the scraping strip 215 extends into the dust inlet 203. Along the forward direction of the cleaning device, the scraping strip 215 is located behind the roller brush body 201.

[0062] It can be understood that the roller brush cover 202 is used to be connected to the housing 100 and cover the roller brush body 201. That is, the roller brush body 201 rotates around the axis at the dust inlet 203 of the roller brush cover 202 to sweep dust and other impurities into the air suction channel of the housing 100.

[0063] Here, the surface of the roller brush cover 202 refers to the surface of the roller brush cover 202 facing the ground to be cleaned. The accommodation groove 204 surrounds the periphery of the dust inlet 203. Then, the floating bracket 209 surrounds the periphery of the dust inlet 203, so that the outer contour of the floating bracket 209 has no influence on the dust suction area of the dust inlet 203. That is, the actual cleaning area size is the projected area of the dust inlet 203 on the ground to be cleaned.

[0064] The floating connection method between the floating bracket 209 and the roller brush cover 202 can be a hinge connection. For example, one end of the floating bracket 209 is hinged to the inner wall of the accommodation groove 204, and the scraping strip 215 is arranged at the other end of the floating bracket 209. Under the action of gravity, the scraping strip 215 drives the current end of the floating bracket 209 from the natural hanging state, and when the scraping strip 215 touches an obstacle on the ground to be cleaned, the floating bracket 209 rotates relative to the roller brush cover 202 by hinge to lift the scraping strip 215 from the ground to be cleaned. In this way, only one end or a part of the current floating bracket 209 can float up and down relative to the roller brush cover 202.

[0065] Or, the floating connection method between the floating bracket 209 and the roller brush cover 202 can be an elastic connection. For example, an elastic member is arranged between the floating bracket 209 and the inner wall of the accommodation groove 204. One end of the elastic member is connected to the inner wall of the accommodation groove 204 and the other end is connected to the floating bracket 209. In this way, the deformation ability of the elastic member is used to realize the up and down floating of the floating bracket 209 relative to the roller brush cover 202. Here, the elastic member can be a part of the floating bracket 209. For example, the elastic member is an elastic column integrally formed on the floating bracket 209, and the elastic column realizes the up and down floating of the floating bracket 209 relative to the roller brush cover 202 due to the deformation characteristics of the material; or, the elastic member can also be an additional spring, with one end of the spring connected to the inner wall of the accommodation groove 204 and the other end connected to the floating bracket 209.

[0066] When the cleaning device moves on the ground to be cleaned, the roller brush body 201 rotates relative to the roller brush cover 202 around an axis, so as to collect the dust entering the dust inlet 203. As the roller brush body 201 moves, the scraping strip 215 is used to collect the dust located behind the roller brush body 201. Finally, the collected dust is guided by the scraping strip 215 and collected in the housing 100 of the cleaning device.

[0067] In the cleaning device provided by the present application, a receiving groove 204 is formed by inward depression on the surface of the roller brush cover 202 of the roller brush middle sweeping structure 200. Moreover, the receiving groove 204 surrounds the dust inlet 203. Therefore, the floating bracket 209 is arranged in the receiving groove 204 to drive the scraping strip 215 to float up and down relative to the roller brush cover 202. In this way, the floating bracket 209 surrounds the periphery of the dust inlet 203, so that the dust suction area of the dust inlet 203 is not affected, that is, the cleaning coverage area of the cleaning device is not affected, thereby improving the cleaning efficiency of the sweeping mechanism to a certain extent.

[0068] Please refer to Figure 3 and Figure 6 , in some embodiments, the floating bracket 209 has a hinged end 210 and a connection end 211 opposite to the hinged end 210. The hinged end 210 is rotatably connected to the inner wall of the receiving groove 204, and the connection end 211 is used for connecting the scraping strip 215, so that the scraping strip 215 floats up and down relative to the roller brush cover 202.

[0069] It can be understood that in this embodiment, the floating bracket 209 is connected to the roller brush cover 202 by a hinged connection method.

[0070] Specifically, the hinged end 210 of the floating bracket 209 is rotatably connected to the inner wall of the receiving groove 204. Here, the hinged end 210 can be a hinged column, and an installation hole adapted to the hinged column is opened on the inner wall of the receiving groove 204. Or, the hinged end 210 is a hinged hole opened on the floating bracket 209, and a plugging column inserted into the hinged hole is provided on the inner wall of the receiving groove 204. Or, a first annular structure is provided on the inner wall of the receiving groove 204, the hinged end 210 of the floating bracket 209 is a second annular connection structure, and the first annular structure and the second annular structure are connected by a chain.

[0071] The connection end 211 is opposite to the hinged end 210. The connection end 211 can extend into or out of the receiving groove 204 when the hinged end 210 of the floating bracket 209 rotates relative to the inner wall of the receiving groove 204, so as to form a position relationship of floating up and down with the roller brush cover 202.

[0072] Specifically, the connecting end 211 can be in the form of a plate structure, a block structure, a shaft structure, etc. The connection methods between the connecting end 211 and the scraping strip 215 include but are not limited to plug connection, snap connection, bonding, threaded connection, etc.

[0073] In this way, the hinged end 210 can rotate hingedly relative to the inner wall of the receiving groove 204, so as to drive the scraping strip 215 on the connecting end 211 to float up and down relative to the roller brush cover 202.

[0074] Exemplarily, the floating bracket 209 is similar to a closed annular structure, and the outer contour of this annular structure is the same as or similar to the groove contour of the receiving groove 204, both being similar to a "mouth" shape. One end of the annular structure is hinged to the inner wall of the receiving groove 204, and the scraping strip 215 is arranged at the other end of the annular structure.

[0075] Alternatively, the outer shape structure of the floating bracket 209 is similar to a U shape. Then, the two free ends of the floating bracket 209 are the hinged ends 210, that is, the two free ends are hinged to the inner wall of the receiving groove 204 through hole-shaft cooperation. The closed end of the floating bracket 209 is the connecting end 211. A snap groove is formed on the scraping strip 215, and the scraping strip 215 is connected to the closed end of the floating bracket 209 by snap connection.

[0076] Please refer to Figure 3 , in some embodiments, the floating bracket 209 includes a rotating shaft 212, a connecting plate 213 spaced apart from the rotating shaft 212, and a connecting arm 214 for connecting the rotating shaft 212 and the connecting plate 213. The rotating shaft 212 is hinged to the inner wall of the receiving groove 204, and the connecting plate 213 is used for connecting the scraping strip 215.

[0077] It can be understood that the rotating shaft 212 is the hinged end 210 of the floating bracket 209, and the connecting plate 213 is the connecting end 211 of the floating bracket. At the same time, according to actual usage requirements, several connecting arms 214 are arranged between the rotating shaft 212 and the connecting plate 213. The number of connecting arms 214 can be one or two, and the rotating shaft 212, the connecting plate 213, and the connecting arm 214 can all be accommodated in the receiving groove 204.

[0078] Exemplarily, when the number of connecting arms 214 is one, the rotating shaft 212, the connecting arm 214, and the connecting plate 213 enclose a "C" or a structure similar to a "C" shape. The rotating shaft 212 rotates hingedly on the inner wall of the receiving groove 204, so that the connecting plate 213 extends into or out of the receiving groove 204, so that the scraping strip 215 floats up and down relative to the ground to be cleaned.

[0079] Alternatively, when the number of connecting arms 214 is two, the rotating shaft 212, the two connecting arms 214, and the connecting plate 213 enclose a "mouth" - shaped or a structure similar to the "mouth" - shaped structure. Similarly, the rotating shaft 212 is hinged and rotatable on the inner wall of the accommodating groove 204, so that the connecting plate 213 extends into or out of the accommodating groove 204, enabling the scraping strip 215 to float up and down relative to the ground to be cleaned.

[0080] The hinged manner between the rotating shaft 212 and the inner wall of the accommodating groove 204 can form a hinge hole on the inner wall of the accommodating groove 204, and the rotating shaft 212 is inserted into the hinge hole. Alternatively, the hinged manner between the two can also form a clamping structure on the inner wall of the accommodating groove 204, and the rotating shaft 212 is clamped within the clamping structure to achieve hinged rotation.

[0081] The connection manner between the connecting plate 213 and the scraping strip 215 includes but is not limited to plug - in connection, clamping connection, threaded connection, bonding, etc.

[0082] In summary, compared with the spring - floating scheme, the combined structural form of the floating bracket 209 and the scraping strip 215 in this embodiment is simpler, which can indirectly eliminate structures such as springs, pressure plates, and screws, and the raw material cost is lower.

[0083] In this way, the floating bracket 209 is similar to a frame structure to reduce or lower the interference effect on the operation of the roller brush main body 201. The rotating shaft 212 is rotationally connected to the inner wall of the accommodating groove 204, the connecting plate 213 is used to fix the scraping strip 215, and the connecting arm 214 is used to connect the rotating shaft 212 and the connecting plate 213. When the rotating shaft 212 rotates relative to the inner wall of the accommodating groove 204, it drives the connecting plate 213 and the scraping strip 215 to float up and down relative to the ground to be cleaned.

[0084] Please refer to Figure 3 、 Figure 4 and Figure 7 , in some embodiments, a clamping portion 205 is provided in the accommodating groove 204, the rotating shaft 212 is clamped in the clamping portion 205, and the rotating shaft 212 can rotate relative to the roller brush cover 202 around its own central axis.

[0085] It can be understood that the clamping portion 205 and the rotating shaft 212 have a clamped connection relationship. Then, the clamping portion 205 is a convex bone or convex rib formed by the inner wall of the accommodating groove 204 protruding outward. The cross - sectional shape of the clamping portion 205 is similar to the radial cross - section of the rotating shaft 212. In this way, a clamping port with the same orientation as the notch of the accommodating groove 204 is formed on the clamping portion 205, and the rotating shaft 212 is clamped into the corresponding clamping portion 205 by pressing.

[0086] Optionally, as Figure 3As shown, there are three clamping parts 205, and the positions of the three clamping parts 205 in the accommodating groove 204 just divide the rotating shaft 212 into equal parts. For example, one of the clamping parts 205 is located at half of the length of the rotating shaft 212, and the other two clamping parts 205 are symmetrically distributed at the opposite ends of the rotating shaft 212 with respect to the above-mentioned clamping parts 205. In this way, the rotation process of the rotating shaft 212 relative to the roller brush cover 202 is smoother, that is, the up and down floating process of the scraper strip 215 relative to the ground to be cleaned is also smoother.

[0087] In this way, the clamping portion 205 is used to restrict the rotating shaft 212 in the receiving groove 204 to rotate around the central axis of the rotating shaft 212 , thereby reducing the risk of the rotating shaft 212 escaping from the receiving groove 204 .

[0088] Please refer to Figure 3 In some embodiments, the floating bracket 209 further includes a reinforcement member 218 , one end of the reinforcement member 218 is connected to the rotating shaft 212 and the other end is connected to the connecting plate 213 .

[0089] It can be understood that the role of the reinforcement 218 is to increase the structural strength of the floating bracket 209, improve the stability of the floating bracket 209 when it is hinged and rotated relative to the roller brush cover 202, and especially increase the anti-twisting performance of the scraper strip 215.

[0090] For example, there are two reinforcement members 218 , which are evenly spaced and distributed between the rotation shaft 212 and the connecting plate 213 with the midpoint of the rotation shaft 212 as the symmetric center, so as to increase the anti-torsion performance of the frame structure of the floating bracket 209 .

[0091] Of course, in other embodiments, the number of reinforcement members 218 may be increased or decreased, depending on actual usage requirements.

[0092] In this way, the reinforcement 218 can improve the structural strength of the frame structure of the floating bracket 209 and reduce the probability of deformation of the frame structure of the floating bracket 209. At the same time, the force on the frame structure of the floating bracket 209 is more uniform at various locations during rotation, so that the scraper 215 can rise and fall smoothly relative to the ground to be cleaned.

[0093] Optionally, in some embodiments, since the reinforcement 218 is placed horizontally on the dust inlet 203, the spatial position of the reinforcement 218 interferes with the roller brush body 201 to a certain extent. Therefore, the reinforcement 218 is bent in a direction away from the roller brush body 201 to reduce the spatial interference between the reinforcement 218 and the roller brush body 201.

[0094] In some embodiments, the connecting arm 214 and the connecting plate 213 extend out of the accommodating groove 204 to the outside in the first position state, and the connecting arm 214 and the connecting plate 213 extend into the accommodating groove 204 in the second position state.

[0095] Understandably, as Figure 5 shown, the first position state means that the floating bracket 209 is in the use state. At this time, the floating bracket 209 drives the squeegee 215 to move downward to the ground to be cleaned. Therefore, both the connecting arm 214 and the connecting plate 213 extend out of the accommodating groove 204 to the outside. Here, both the connecting arm 214 and the connecting plate 213 can partially extend out of the accommodating groove 204 to the outside, or both of them can extend out of the accommodating groove 204 to the outside. That is, the position where the connecting arm 214 and the connecting plate 213 extend out of the accommodating groove 204 to the outside is the lower limit floating position of the floating bracket 209.

[0096] The second position state means that the floating bracket 209 is in the storage state. At this time, the floating bracket 209 drives the squeegee 215 to move upward into the accommodating groove 204. Therefore, both the connecting arm 214 and the connecting plate 213 extend into the accommodating groove 204. Here, both the connecting arm 214 and the connecting plate 213 can partially extend into the accommodating groove 204, or both of them can extend into the accommodating groove 204. That is, the position where the connecting arm 214 and the connecting plate 213 extend into the accommodating groove 204 is the upper limit floating position of the floating bracket 209.

[0097] The squeegee 215 can reciprocally move between the upper limit floating position and the lower limit floating position driven by the floating bracket 209.

[0098] In this way, in the first position state, the connecting arm 214 and the connecting plate 213 synchronously extend out of the accommodating groove 204 to the outside and drive the squeegee 215 to be in the extended state; in the second position state, the connecting arm 214 and the connecting plate 213 synchronously extend into the accommodating groove 204 and drive the squeegee 215 to be in the retracted state.

[0099] Please refer to Figure 3 、 Figure 6 and Figure 7 , in some embodiments, the cleaning device further includes a flexible member 219. The flexible member 219 is used to connect the connecting plate 213 and the roller brush cover 202 to provide an elastic force for the connecting plate 213 to extend out of the dust inlet 203.

[0100] Understandably, the flexible member 219 refers to a structural member that can deform. The flexible member 219 is used to reduce the probability of abnormal noise occurring when the floating bracket 209 floats up and down.

[0101] The material of the flexible member 219 includes but is not limited to resin, rubber, silica gel, etc.

[0102] Meanwhile, the flexibility member 219 can also provide an elastic force for the connecting plate 213 to extend out of the dust inlet 203, that is, provide an elastic force for the floating bracket 209 to swing out of the dust inlet 203 relative to the brush cover 202, so as to keep the scraping strip 215 in contact with the ground to be cleaned.

[0103] In this way, the flexible member 219 is used to provide the elastic force required for the scraping strip 215 to float up and down relative to the ground to be cleaned.

[0104] Please refer to Figure 7 , in some embodiments, the flexible member 219 includes a flexible main body 220, a first connecting portion 221 provided at one end of the flexible main body 220, and a second connecting portion 222 provided at the other end of the flexible main body 220. The first connecting portion 221 is plugged and connected to the brush cover 202, and the second connecting portion 222 is plugged and connected to the connecting plate 213.

[0105] It can be understood that the flexible main body 220 is the part of the flexible member 219 that mainly assists the floating of the floating bracket 209 up and down. The first connecting portion 221 is used to realize the connection between the flexible member 219 and the brush cover 202, and the second connecting portion 222 is used to realize the connection between the flexible member 219 and the connecting plate 213.

[0106] Specifically, the first connecting portion 221 and the brush cover 202 are connected by a plugging method. For example, mounting holes are provided on the first connecting portion 221, and mounting posts adapted to the mounting holes are provided on the brush cover 202, or the positions of the mounting holes and the mounting posts are adjusted.

[0107] At the same time, since the first connecting portion 221 of the flexible member 219 is connected to the brush cover 202, the gap between the flexible main body 220 and the inner wall of the dust inlet 203 of the brush cover 202 is blocked, that is, the probability of dust entering the gap between the flexible main body 220 and the inner wall of the dust inlet 203 of the brush cover 202 is reduced, and further the probability of the connecting plate 213 being stuck due to squeezing dust and other impurities at this gap is reduced.

[0108] The second connecting portion 222 is also plugged and connected to the connecting plate 213.

[0109] Specifically, a chute extending along its own length direction is opened on the connecting plate 213, and the second connecting portion 222 is slidably inserted into the corresponding chute along the length direction of the connecting plate 213.

[0110] The thickness of the flexible main body 220 increases from the middle position along the direction towards the first connecting portion 221; and / or, the thickness of the flexible main body 220 increases from the middle position along the direction towards the second connecting portion 222.

[0111] Understandably, the overall thickness of the flexible body 220 may be thicker on one side and thinner on the other. For example, the thickness of the flexible body 220 increases from the middle position in the direction towards the first connecting portion 221; or, the thickness of the flexible body 220 increases from the middle position in the direction towards the second connecting portion 222; and, the overall thickness of the flexible body 220 may also be thinner in the middle and thicker at both ends. For example, the thickness of the flexible body 220 increases from the middle position in the direction towards the first connecting portion 221; and, the thickness of the flexible body 220 increases from the middle position in the direction towards the second connecting portion 222.

[0112] Here, the middle position of the flexible body 220 refers to the middle region of the flexible body 220 that is far from both the first connecting portion 221 and the second connecting portion 222.

[0113] In this way, the first connecting portion 221 of the flexible member 219 and the housing 100 form a seamless dust suction channel, so that dust enters the dust box in the housing 100 along the scraping strip 215, the connecting plate 213, and the flexible member 219, better realizing the sealing of the roller brush middle sweeping structure 200 and being more conducive to improving the cleaning efficiency of the cleaning device; at the same time, the flexible body 220 presents a gradually changing structure of "thinner in the middle and thicker at both ends", which can further assist the scraping strip 215 in floating deformation and rebound restoration.

[0114] Please refer to Figure 3 、 Figure 6 、 Figure 9 and Figure 10 In some embodiments, a plurality of insertion posts 206 are provided on the roller brush cover 202 at intervals, and insertion slots 223 adapted to the insertion posts 206 are formed on the first connecting portion 221.

[0115] Understandably, each insertion slot 223 on the first connecting portion 221 is adaptively connected to each insertion post 206, so that the first connecting portion 221 is connected to the roller brush cover 202.

[0116] Here, the insertion post 206 may be an insertion post 206 with a consistent outer diameter along the axial direction, and the insertion slot 223 is an insertion slot 223 with a consistent inner diameter along the insertion direction. In this way, the assembly process between the first connecting portion 221 and the roller brush cover 202 is smoother; or, the insertion post 206 may be an insertion post 206 with an outer diameter gradually increasing in the direction away from the roller brush cover 202, and the insertion slot 223 is an insertion slot 223 with a consistent inner diameter along the insertion direction. In this way, the connection stability between the first connecting portion 221 and the roller brush cover 202 is higher, and the probability of the first connecting portion 221 coming off the insertion post 206 is lower.

[0117] Specifically, at least one insertion post 206 includes a column body 207 connected to the roller brush cover 202 and an anti - detachment portion 208 provided on the main body; the insertion slot 223 includes a first slot portion 224 and a second slot portion 225 that communicate with each other. The first slot portion 224 is used to accommodate the column body 207, and the second slot portion 225 is used to accommodate the anti - detachment portion 208.

[0118] Understandably, the anti - detachment portion 208 is a part of the anti - detachment portion 208 that is different from the column body 207, and the column body 207 is directly connected to the roller brush cover 202.

[0119] The size of the anti - detachment portion 208 is larger than that of the column body 207. For example, the anti - detachment portion 208 and the column body 207 are combined to form a structure similar to a "T" shape, or the anti - detachment portion 208 and the column body 207 are combined to form a structure similar to the number "7" shape.

[0120] At the same time, the first slot portion 224 of the insertion slot 223 is used to accommodate the column body 207, that is, the column body 207 can be filled in the first slot portion 224; and the second slot portion 225 of the insertion slot 223 is used to accommodate the anti - detachment portion 208, that is, the anti - detachment portion 208 can be filled in the second slot portion 225.

[0121] In this way, multiple insertion posts 206 are adaptively connected to the corresponding insertion slots 223 to improve the connection stability between the flexible member 219 and the roller brush cover 202; specifically, the first slot portion 224 wraps the column body 207, and the second slot portion 225 wraps the anti - detachment portion 208 to improve the sealing performance of the connection between the flexible member 219 and the roller brush cover 202.

[0122] Optionally, as Figure 9 and Figure 10 shown, a plurality of insertion posts 206 are provided on the roller brush cover 202. Among them, the insertion posts 206 located at even positions have anti - detachment portions 208, and the insertion posts 206 located at odd positions do not have anti - detachment portions 208. Similarly, a plurality of insertion slots 223 are provided on the first connection portion 221. The insertion slots 223 located at even positions have second slot portions 225, and the insertion slots 223 located at odd positions do not have second slot portions 225. In this way, the smoothness of the adaptation between each insertion slot 223 of the first connection portion 221 and each insertion post 206 can be improved.

[0123] Please refer to Figure 7 , in some embodiments, the squeegee 215 includes an insertion portion 216 inserted into the connection end 211 and a scraping portion 217 connected to the insertion portion 216 of the squeegee 215.

[0124] Understandably, the insertion portion 216 is inserted and connected to the connection end 211, and the scraping portion 217 is directly in contact with the ground to be cleaned and is used for collecting dust.

[0125] Exemplarily, a groove structure may be provided on the connection end 211. For example, a groove structure extending along its length direction is provided on the connection plate 213 of the floating bracket 209. At the same time, the insertion portion 216 is slidably inserted into the corresponding groove structure along the length direction of the connection plate 213.

[0126] The thickness of the insertion portion 216 gradually increases in the direction towards the connection end 211; and / or, the scraping portion 217 is sheet-shaped, and the thickness of the scraping portion 217 remains consistent in the direction towards the insertion portion 216.

[0127] It can be understood that the insertion portion 216 has one end close to the scraping portion 217 and one end close to the connection end 211. And the thickness of the insertion portion 216 gradually increases in the direction towards the connection end 211. For example, the cross-sectional shape of the insertion portion 216 is triangular or similar to a triangle. And one of the apex angles of the triangular cross-section is close to the end of the scraping portion 217, and the base of the triangular cross-section is close to the end of the connection portion. Then, the weight of the insertion portion 216 occupies the vast majority of the weight of the scraping strip 215. At the same time, the insertion portion 216 is connected to the connection end 211, which enables the connection end 211 of the floating bracket 209 to be in a natural drooping state under the action of gravity.

[0128] The scraping portion 217 is sheet-shaped, and the fact that the thickness of the scraping portion 217 remains consistent in the direction towards the insertion portion 216 means that its thickness is relatively thin and the distribution of the thickness is consistent. This enables the scraping portion 217 to provide an upward floating elastic force for the floating bracket 209 when encountering obstacles on the ground to be cleaned.

[0129] In this way, the relatively thick insertion portion 216 can enhance the connection strength between the scraping strip 215 and the connection end 211 of the floating bracket 209. At the same time, it increases the overall weight of the scraping strip 215, so that the connection end 211 of the floating bracket 209 naturally extends out of the receiving groove 204 under the action of gravity; and the scraping portion 217 is sheet-shaped and has a consistent thickness to provide an upward elastic force for the floating bracket 209 relative to the ground to be cleaned.

[0130] Please refer to Figures 1 to 10 , in a specific embodiment, the cleaning device includes a housing 100 and a roller brush middle sweeping structure 200 provided at the bottom of the housing 100. The roller brush middle sweeping structure 200 includes a roller brush main body 201 for brushing the ground to be cleaned, a roller brush cover 202, a floating bracket 209, and a scraping strip 215.

[0131] The roller brush cover 202 is provided on the housing 100. And a dust inlet 203 is provided on the roller brush cover 202. The surface of the roller brush cover 202 is recessed inward to form a receiving groove 204, and the receiving groove 204 surrounds the dust inlet 203;

[0132] The floating bracket 209 is placed in the accommodation groove 204 and is connected to the roller brush cover 202 in a vertically floating manner. The roller brush body 201 is rotatably connected to the roller brush cover 202, and the roller brush body 201 penetrates through the dust inlet 203 to brush the ground to be cleaned.

[0133] The scraping strip 215 is provided on the floating bracket 209, and the scraping strip 215 extends into the dust inlet 203. Along the forward direction of the cleaning device, the scraping strip 215 is located behind the roller brush body 201.

[0134] The floating bracket 209 includes a rotating shaft 212, a connecting plate 213 arranged at an interval from the rotating shaft 212, a connecting arm 214 for connecting the rotating shaft 212 and the connecting plate 213, and a reinforcing member 218 connecting the rotating shaft 212 and the connecting plate 213.

[0135] A clamping portion 205 is provided in the accommodation groove 204, and the rotating shaft 212 is clamped in the clamping portion 205. Moreover, the rotating shaft 212 can rotate relative to the roller brush cover 202 around its own central axis.

[0136] The connecting plate 213 is for connecting the scraping strip 215. The scraping strip 215 includes a plugging portion 216 inserted into the connecting plate 213 and a scraping portion 217 connected to the plugging portion 216 of the scraping strip 215. The thickness of the plugging portion 216 gradually increases along the direction towards the connecting end 211; the scraping portion 217 is in a sheet shape, and the thickness of the scraping portion 217 remains consistent along the direction towards the plugging portion 216.

[0137] The cleaning device further includes a flexible member 219, and the flexible member 219 is used for connecting the connecting plate 213 and the roller brush cover 202.

[0138] The flexible member 219 includes a flexible main body 220, a first connecting portion 221 provided at one end of the flexible main body 220, and a second connecting portion 222 provided at the other end of the flexible main body 220.

[0139] A plurality of plugging columns 206 arranged at intervals are provided on the roller brush cover 202. Plugging slots 223 adapted to the plugging columns 206 are formed on the first connecting portion 221. Moreover, the first connecting portion 221 abuts against the machine housing 100, and the second connecting portion 222 is plugged and connected to the connecting plate 213.

[0140] At least one plugging column 206 includes a column body 207 connected to the roller brush cover 202 and an anti - detachment portion 208 provided on the main body; the plugging slot 223 includes a first slot portion 224 and a second slot portion 225 that are communicated with each other. The first slot portion 224 is for accommodating the column body 207, and the second slot portion 225 is for accommodating the anti - detachment portion 208.

[0141] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cleaning device, comprising a housing and a roller brush middle sweeping structure disposed at the bottom of the housing, the roller brush middle sweeping structure including a roller brush main body for brushing the ground to be cleaned. Characterized in that: The roller brush middle sweeping structure further includes: A roller brush cover, which is disposed on the housing, and a dust inlet is formed on the roller brush cover. A receiving groove is formed by inward depression on the surface of the roller brush cover, and the receiving groove surrounds the dust inlet. A floating bracket, which is placed in the receiving groove and is connected to the roller brush cover in a vertically floating manner. The roller brush main body is rotatably connected to the floating bracket, and the roller brush main body passes through the dust inlet to brush the ground to be cleaned. A scraping strip, which is disposed on the floating bracket and extends into the dust inlet. Along the forward direction of the cleaning device, the scraping strip is located behind the roller brush main body.

2. The cleaning device according to claim 1, Characterized in that: The floating bracket has a hinged end and a connection end opposite to the hinged end. The hinged end is rotatably connected to the inner wall of the receiving groove, and the connection end is used for connecting the scraping strip so that the scraping strip floats up and down relative to the roller brush cover.

3. The cleaning device according to claim 2, Characterized in that: The floating bracket includes a rotating shaft, a connecting plate spaced apart from the rotating shaft, and a connecting arm for connecting the rotating shaft and the connecting plate. The rotating shaft is hinged to the inner wall of the receiving groove, and the connecting plate is used for connecting the scraping strip.

4. The cleaning device according to claim 3, Characterized in that: A clamping portion is provided in the receiving groove, and the rotating shaft is clamped in the clamping portion, and the rotating shaft can rotate relative to the roller brush cover around its own central axis.

5. The cleaning device according to claim 3, Characterized in that: The floating bracket further includes a reinforcing member, one end of the reinforcing member is connected to the rotating shaft and the other end is connected to the connecting plate.

6. The cleaning device according to claim 3, Characterized in that: The connecting arm and the connecting plate extend out of the receiving groove to the outside in a first position state, and the connecting arm and the connecting plate extend into the receiving groove in a second position state.

7. The cleaning device according to any one of claims 3 to 6, Characterized in that: The cleaning device further includes a flexible member, which is used for connecting the connecting plate and the roller brush cover to provide an elastic force for the connecting plate to extend out of the dust inlet.

8. The cleaning device according to claim 7, Characterized in that: The flexible member includes a flexible main body, a first connecting portion provided at one end of the flexible main body, and a second connecting portion provided at the other end of the flexible main body. The first connecting portion is inserted and connected to the roller brush cover, and the second connecting portion is inserted and connected to the connecting plate; The thickness of the flexible main body increases along the direction towards the first connecting portion from the middle position; and / or the thickness of the flexible main body increases along the direction towards the second connecting portion from the middle position.

9. The cleaning device according to claim 8, Characterized in that: A plurality of insertion posts are provided on the roller brush cover at intervals, and insertion slots adapted to the insertion posts are formed on the first connecting portion; At least one of the insertion posts includes a column body connected to the roller brush cover and an anti - detachment portion provided on the column body; the insertion slot includes a first slot portion and a second slot portion that are communicated with each other. The first slot portion is used to accommodate the column body, and the second slot portion is used to accommodate the anti - detachment portion.

10. The cleaning device according to claim 2, characterized in that: The squeegee includes an insertion portion inserted into the connection end and a scraping portion connected to the insertion portion of the squeegee; The thickness of the insertion portion gradually increases in the direction towards the connection end; and / or, the scraping portion is in a sheet shape, and the thickness of the scraping portion remains consistent in the direction towards the insertion portion.

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