Cleaning equipment and floor brush assembly

Abstract

The utility model provides cleaning equipment and a floor brush assembly. The floor brush assembly of the cleaning equipment comprises a floor brush base, a cleaning element, a rolling wheel and a supporting wheel assembly. The cleaning element and the rolling wheel are both installed on the floor brush base in a rotatable mode. The supporting wheel assembly is arranged on the face, facing the to-be-cleaned face, of the floor brush base and comprises a first supporting wheel and a first elastic piece, and the first supporting wheel is installed on the first side of the floor brush base through the first elastic piece. The first side of the floor brush base is heavier than the second side of the floor brush base; when the cleaning equipment is placed on a surface to be cleaned, the first elastic piece is in a compressed state, and then elastic force is provided for the first side of the floor brush base so as to balance the weight difference between the first side and the second side of the floor brush base. When the floor brush assembly of the cleaning equipment is placed on the surface to be cleaned, the elastic force of the first elastic piece can balance the weight difference between the first side and the second side of the floor brush base, the abrasion difference between the two ends of the cleaning element is reduced, and the service life of the cleaning element is prolonged.

Description

Technical Field

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

[0002] With the advancement of technology, various smart home devices have further improved people's quality of life. Among them, as people pay more and more attention to environmental hygiene, cleaning equipment has become one of the most commonly used smart home devices.

[0003] In order to improve the user experience, many improvements have been made to the existing cleaning equipment. One common cleaning equipment mainly includes a body and a floor brush assembly, in which a floor brush base, a roller brush and a roller are specifically provided, and the roller brush and the roller are rotatably mounted on the floor brush base. When cleaning, the roller brush and the roller are in contact with the surface to be cleaned at the same time, and the roller brush rolls on the surface to be cleaned under the drive of the roller, thereby removing dirt from the surface to be cleaned.

[0004] However, in the existing cleaning equipment, in order to enable the cleaning equipment to automatically complete the cleaning work, a variety of components are set on the floor brush assembly, such as various motors, sensors, pumps, pipes, etc., and each component is distributed in different positions of the floor brush assembly, so that when the roller brush and roller of the floor brush assembly are in contact with the surface to be cleaned at the same time, the pressure distribution of the two ends of the roller brush on the ground is uneven, and the end with high pressure wears faster during use, and the service life of the roller brush is short, affecting the user experience. At the same time, it will cause inconsistent cleaning efficiency at both ends of the roller brush, resulting in poor cleaning effect. Therefore, how to balance the pressure load of the roller brush on the ground has become a technical problem to be solved. Utility Model Content

[0005] The present application provides a cleaning device to solve the problems of short service life and poor cleaning efficiency of the roller brush of the existing cleaning device. At the same time, the present application also provides a floor brush assembly.

[0006] The present application provides a cleaning device, the cleaning device comprising a floor brush assembly;

[0007] The floor brush assembly comprises: a floor brush base, a cleaning element, a roller and a supporting wheel assembly;

[0008] The cleaning element and the roller are both rotatably mounted on the floor brush base;

[0009] The support wheel assembly is arranged on a side of the floor brush base facing the surface to be cleaned;

[0010] The support wheel assembly includes a first support wheel and a first elastic member, and the first support wheel is installed on the first side of the floor brush base through the first elastic member; the weight of the first side of the floor brush base is greater than the weight of the second side of the floor brush base;

[0011] When the cleaning device is placed on the surface to be cleaned, the first elastic member is in a compressed state, thereby providing elastic force to the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base.

[0012] Optionally, the support wheel assembly further includes a second support wheel, and the second support wheel is mounted on a second side of the floor brush base; the second support wheel is also located on the surface to be cleaned.

[0013] Optionally, the support wheel assembly further includes a second support wheel and a second elastic member, and the second support wheel is mounted on the second side of the floor brush base through the second elastic member;

[0014] When the cleaning device is placed on the surface to be cleaned, the first elastic member and the second elastic member are both in a compressed state, and the first elastic force generated by the compression of the first elastic member is greater than the second elastic force generated by the compression of the second elastic member; the elastic force difference between the first elastic force and the second elastic force is used to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base.

[0015] Optionally, the elastic coefficient of the first elastic member is greater than the elastic coefficient of the second elastic member;

[0016] When the cleaning device is placed on the surface to be cleaned, the compression deformation amount of the first elastic member and the compression deformation amount of the second elastic member are the same.

[0017] Optionally, the elastic coefficient of the first elastic member is the same as the elastic coefficient of the second elastic member;

[0018] When the cleaning device is placed on the surface to be cleaned, the compression deformation amount of the first elastic member is greater than the compression deformation amount of the second elastic member.

[0019] Optionally, the first support wheel includes a first frame and a first support wheel body; the first support wheel body is rotatably mounted on the first frame via a rotating shaft; the first end of the first elastic member abuts against the first frame of the first support wheel, and the second end of the first elastic member abuts against the floor brush base.

[0020] Optionally, a first cavity is provided on the floor brush base; the first elastic member is provided inside the first cavity, and the second end of the first elastic member abuts against a supporting surface in the first cavity.

[0021] Optionally, a first limiting member is provided in the first cavity; the first limiting member is provided at the abutting position between the second end of the first elastic member and the abutting surface to limit the movable space of the first elastic member in the first cavity.

[0022] Optionally, a second position-limiting member is provided on the first frame; the second position-limiting member is provided at the abutting position between the first elastic member and the first frame to achieve abutting between the first end of the first elastic member and the first frame.

[0023] Optionally, the first elastic member is configured as a spring; the second limiting member includes a central limiting member; and the first elastic member is nested on the central limiting member.

[0024] Optionally, the second limiting member includes a limiting sleeve; and the first elastic member is arranged in a limiting space of the limiting sleeve.

[0025] Optionally, a third position-limiting member is provided on the floor brush base or the first frame; the third position-limiting member is arranged on a moving path of the first supporting wheel as the first elastic member extends and retracts, so as to limit the displacement space of the first supporting wheel for retraction.

[0026] Optionally, the first end of the cleaning element is located on the first side of the floor brush base, and the second end of the cleaning element is located on the second side of the floor brush base; and a motor is disposed at the first end of the cleaning element.

[0027] Optionally, the first supporting wheel is configured as a universal wheel.

[0028] The present application provides a floor brush assembly, comprising: a floor brush base, a cleaning element, a roller and a supporting wheel assembly;

[0029] The cleaning element and the roller are both rotatably mounted on the floor brush base;

[0030] The support wheel assembly is arranged on a side of the floor brush base facing the surface to be cleaned;

[0031] The support wheel assembly includes a first support wheel and a first elastic member, and the first support wheel is installed on the first side of the floor brush base through the first elastic member; the weight of the first side of the floor brush base is greater than the weight of the second side of the floor brush base;

[0032] When the floor brush base is placed on the surface to be cleaned, the first elastic member is in a compressed state, thereby providing elastic force to the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base.

[0033] Compared with the prior art, this application has the following advantages:

[0034] The present application provides a cleaning device, which includes a body and a floor brush assembly, and the floor brush assembly includes: a floor brush base, a cleaning element, a roller and a supporting wheel assembly; the cleaning element and the roller are both rotatably mounted on the floor brush base; the supporting wheel assembly is arranged on a side of the floor brush base facing a surface to be cleaned; the supporting wheel assembly includes a first supporting wheel and a first elastic member, and the first supporting wheel is mounted on a first side of the floor brush base through the first elastic member; the weight of the first side of the floor brush base is greater than the weight of the second side of the floor brush base; when the cleaning device is placed on the surface to be cleaned, the first elastic member is in a compressed state, thereby providing elastic force to the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base. The floor brush assembly is provided with a support wheel and a first elastic member on the first side of the floor brush base where the weight is large. When the cleaning device is placed on the surface to be cleaned, the first elastic member is in a compressed state, and its elastic force will offset part of the weight of the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base, thereby balancing the pressure load of the two ends of the cleaning element on the ground, reducing the wear difference at the two ends of the cleaning element, and extending the service life of the cleaning element. At the same time, due to the structure of the floor brush assembly, the pressure of the two ends of the cleaning element on the ground is the same, which improves the cleaning efficiency of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A cross-sectional view of a first elastic member of a floor brush assembly on a cleaning device provided in the first embodiment when the first elastic member is in an extended state;

[0036] Figure 2 A cross-sectional view of the cleaning device provided in the first embodiment when it is placed on the surface to be cleaned and the first elastic member is in a compressed state;

[0037] Figure 3 A schematic structural diagram of a housing of a floor brush base on a cleaning device provided in the first embodiment;

[0038] Figure 4 A schematic structural diagram of a floor brush assembly provided with a second supporting wheel provided in the first embodiment;

[0039] Figure 5 A cross-sectional view of a floor brush assembly provided with a second supporting wheel provided in the first embodiment;

[0040] Figure 6 A partial cross-sectional view of a first supporting wheel in a floor brush assembly provided in the first embodiment;

[0041] Figure 7 A schematic structural diagram of a first frame provided in the first embodiment;

[0042] Figure 8 A schematic structural diagram of a scraper assembly provided in the first embodiment;

[0043] Fig. 9 This is a schematic structural diagram of the cleaning device provided in the first embodiment.

[0044] Reference numerals:

[0045] Floor brush base 11; first cavity 111;

[0046] Cleaning element 12; Roller 13;

[0047] Support wheel assembly 14;

[0048] First support wheel 141; first frame 1411; first support wheel body 1412;

[0049] A first elastic member 142; a second supporting wheel 143;

[0050] A first limiting member 15; a second limiting member 16; a central limiting member 161; a limiting sleeve 162; a third limiting member 17;

[0051] Scraper assembly 18. DETAILED DESCRIPTION

[0052] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0053] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] The present application provides a cleaning device and a floor brush assembly. The structure and working principle of the cleaning device and the floor brush assembly of the present application are described below using specific embodiments. It should be noted that the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. The cleaning device and the floor brush assembly involved in the present application are described in detail below.

[0057] First embodiment

[0058] The first embodiment of the present application provides a cleaning device. The cleaning device in the present application can be used for a handheld cleaning device, or for a fully automatic cleaning device such as an automatic floor scrubber, or for other types of cleaning devices. In a specific working scenario, the floor brush assembly installed on the cleaning device is mainly used to clean pollutants attached to the dirty surface, and the cleaning element in the floor brush assembly is used to directly contact the dirty surface for cleaning. The cleaning element is such as a roller brush.

[0059] With the advancement of technology, various smart home devices have further improved people's quality of life. Among them, as people pay more and more attention to environmental hygiene, cleaning equipment has become one of the most commonly used smart home devices.

[0060] In order to improve the user experience, many improvements have been made to the existing cleaning equipment. One common cleaning device mainly includes a body and a floor brush assembly, in which a floor brush base, a roller brush and a roller are specifically provided, and the roller brush and the roller are rotatably mounted on the floor brush base. During cleaning, the roller brush and the roller are in contact with the surface to be cleaned at the same time, and the roller brush rolls on the surface to be cleaned under the drive of the roller, thereby removing dirt from the surface to be cleaned. Generally speaking, unless otherwise specified, in this embodiment, the surface to be cleaned is a plane. Of course, it can also be a non-planar surface.

[0061] However, in the existing cleaning equipment, in order to enable the cleaning equipment to automatically complete the cleaning work, a variety of components are set on the floor brush assembly, such as various motors, sensors, pumps, pipes, etc., and each component is distributed in different positions of the floor brush assembly, so that when the roller brush and roller of the floor brush assembly are in contact with the surface to be cleaned at the same time, the pressure distribution of the two ends of the roller brush on the ground is uneven, and the end with high pressure wears faster during use, and the service life of the roller brush is short, affecting the user experience. At the same time, it will cause inconsistent cleaning efficiency at both ends of the roller brush, resulting in poor cleaning effect. Therefore, how to balance the pressure load of the roller brush on the ground has become a technical problem to be solved.

[0062] In order to solve the above existing problems, the present application provides a cleaning device, which includes a body and a floor brush assembly. In the floor brush assembly, a first support wheel and a first elastic member are arranged on the first side of the floor brush base where the weight is large. When the floor brush assembly is used for cleaning, when the cleaning device is placed on the surface to be cleaned, the cleaning element, the roller and the first support wheel are all placed on the surface to be cleaned. The first elastic member is in a compressed state under the weight of the floor brush assembly, and its elastic force will offset part of the weight of the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base, and then balance the pressure load of the two ends of the cleaning element on the ground, so that the cleaning element can be evenly in contact with the ground in the entire axial direction, forming a uniform cleaning force on the ground, while reducing the wear difference at both ends of the cleaning element, extending the service life of the cleaning element, and improving the cleaning efficiency of the cleaning element.

[0063] The cleaning device provided in the first embodiment of the present application is as follows Figure 1 , Figure 2 and Fig. 9 As shown, Figure 1 A cross-sectional view of a first elastic member of a floor brush assembly on a cleaning device provided in the first embodiment when the first elastic member is in an extended state, Figure 2 A cross-sectional view of the cleaning device provided in the first embodiment when it is placed on the surface to be cleaned and the first elastic member is in a compressed state, Fig. 9 This is a schematic structural diagram of the cleaning device provided in the first embodiment.

[0064] In this embodiment, the cleaning device includes a floor brush assembly, which includes: a floor brush base 11, a cleaning element 12, a roller 13 and a support wheel assembly 14; the cleaning element 12 and the roller 13 are both rotatably mounted on the floor brush base 11; the support wheel assembly 14 is arranged on the side of the floor brush base 11 facing the surface to be cleaned; the support wheel assembly 14 includes a first support wheel 141 and a first elastic member 142, and the first support wheel 141 is mounted on the first side of the floor brush base 11 through the first elastic member 142; the weight of the first side of the floor brush base 11 is greater than the weight of the second side of the floor brush base 11; when the cleaning device is placed on the surface to be cleaned, the first elastic member 142 is in a compressed state, thereby providing elastic force to the first side of the floor brush base 11 to balance the weight difference between the first side of the floor brush base 11 and the second side of the floor brush base 11.

[0065] In the floor brush assembly, the floor brush base 11 is the base of the floor brush assembly, which is used to install various functional components, such as various motors, sensors, pumps, pipes, cameras, etc., so that the floor brush assembly can realize the function of automatic cleaning. The specific structure of the shell of the floor brush base 11 can be set to different shapes according to specific needs; please refer to Figure 3 , Figure 3 A schematic diagram of the structure of the housing of the floor brush base on the cleaning device provided in the first embodiment, as shown in FIG. Figure 3 As shown, the two sides of the floor brush base 11 can be set to a symmetrical structure.

[0066] The cleaning element 12 and the roller 13 can be rotatably mounted on the floor brush base 11 to support the floor brush base 11, so that the floor brush base 11 maintains a preset distance from the surface to be cleaned. Among them, the cleaning element 12 is a component that is in direct contact with the surface to be cleaned, and is used to remove dirt on the surface to be cleaned. The cleaning element 12 can be set to different structural forms as required, such as a solid cylinder, a cylinder, and the like. In addition, a felt surface, a collodion surface, etc. can be set on the surface of the cleaning element 12 so that the cleaning element 12 has different cleaning capabilities, which is not specifically limited here.

[0067] The roller 13 can generally be set to be multiple, so that the floor brush base 11 can be supported together with the cleaning element 12. The roller 13 can include a driving wheel, and the driving wheel is powered by a motor to drive the cleaning element 12 to rotate and move. In addition, the number of driving wheels can be freely set. For example, the roller 13 can be set to two, and both rollers 13 can be set as driving wheels, or one of the rollers 13 can be set as a driving wheel and the other can be set as a driven wheel. Of course, during the cleaning process, the cleaning element 12 can also be rotated by the motor on the cleaning element 12, thereby driving the roller 13 to rotate.

[0068] When the surface to be cleaned needs to be cleaned, the cleaning device is placed on the surface to be cleaned, and the roller 13 and the cleaning element 12 are in contact with the surface to be cleaned. When the roller 13 rotates and moves, the cleaning element 12 rotates accordingly, and the cleaning element 12 sweeps across the surface to be cleaned, thereby achieving cleaning. Of course, during the cleaning process, the cleaning element 12 can also be rotated by the motor on the cleaning element 12, thereby driving the roller 13 to rotate.

[0069] The first support wheel 141 is rotatably mounted on the first side of the floor brush base 11 through the first elastic member 142, so that the first support wheel 141 can be displaced along the extension direction of the first elastic member 142. The first elastic member 142 can be selected as a spring, a spring sheet, etc. according to the needs, and is not limited here.

[0070] In this embodiment, the positional relationship between the first support wheel 141 and the first elastic member 142 relative to the floor brush base 11 can be set as follows: when the cleaning device is placed on the surface to be cleaned, the first support wheel 141, the roller 13 and the cleaning element 12 are all placed on the surface to be cleaned, the first support wheel 141, the roller 13 and the cleaning element 12 are all in contact with the surface to be cleaned, and the first elastic member 142 is in a compressed state. When the cleaning device is lifted from the surface to be cleaned and the first support wheel 141 gradually stops contacting the surface to be cleaned, the first elastic member 142 will gradually stretch.

[0071] In short, when the first elastic member 142 is not compressed, the center of gravity of the first support wheel 141 will be lower than that of the roller 13 and the cleaning element 12. When the floor brush assembly is needed to clean the surface to be cleaned, the first support wheel 141 first contacts the surface to be cleaned while the floor brush assembly of the cleaning device is placed on the surface to be cleaned. As the roller 13 and the cleaning element 12 continue to approach the surface to be cleaned, the first elastic member 142 will be gradually compressed until the roller 13 and the cleaning element 12 contact the surface to be cleaned. When the cleaning device is completely placed on the surface to be cleaned, the elastic force of the compressed first elastic member 142 will act on the first side of the floor brush base 11, thereby offsetting part of the weight of the first side of the floor brush base 11.

[0072] In this embodiment, the first support wheel 141 and the first elastic member 142 are arranged on the first side of the floor brush base 11. The first side and the second side of the floor brush base 11 are divided by the central axis of the floor brush base 11. For example, Figure 3 As shown by the dotted line in Figure 3 The dotted line in the figure is the central axis of the floor brush base 11, the side with heavier weight of the floor brush base 11 is the first side, the side with lighter weight of the floor brush base 11 is generally the second side, the first end of the cleaning element 12 is located on the first side of the floor brush base 11, the second end of the cleaning element 12 is located on the second side of the floor brush base 11, and the first end of the cleaning element 12 may be provided with a motor.

[0073] It is understandable that the first side and the second side are only examples. The first side and the second side of the floor brush base 11 may also be distinguished by other methods, which are not limited here.

[0074] The structure described above is a basic structure of the floor brush assembly provided in this embodiment. When the floor brush assembly is placed on the surface to be cleaned for use, the first elastic member 142 is in a compressed state, and its elastic force will offset part of the weight of the first side of the floor brush base 11, thereby balancing the weight difference between the first side of the floor brush base 11 and the second side of the floor brush base 11. Since the cleaning element 12 is installed on the floor brush base 11, the pressure load on the ground from both ends of the cleaning element 12 is also balanced, thereby reducing the wear of the heavier end of the cleaning element 12 during long-term work, thereby extending the service life of the cleaning element 12; at the same time, the pressure on the ground from both ends of the cleaning element 12 is the same, and the cleaning force is also the same, thereby ensuring the cleaning efficiency of the cleaning element 12.

[0075] In addition, based on the above infrastructure, the above infrastructure can be improved, or other feasible structures can be added to the infrastructure to obtain more functions or performances to meet the needs of different application scenarios. The improvement of the infrastructure is specifically introduced below.

[0076] In this embodiment, in addition to providing the first support wheel 141 on the first side of the floor brush base 11, a second support wheel may also be provided on the second side of the floor brush base 11, so that the floor brush base 11 has higher stability when walking. Two feasible structural methods for providing the second support wheel on the floor brush base 11 are provided below.

[0077] The first embodiment of providing a second support wheel on the floor brush base 11: Figure 4 and Figure 5 As shown, Figure 4 A schematic diagram of the structure of a floor brush assembly provided with a second support wheel provided in the first embodiment, Figure 5 A cross-sectional view of a floor brush assembly provided with a second support wheel in the first embodiment. Figure 4 and Figure 5 The support wheel assembly 14 also includes a second support wheel 143, which is installed on the second side of the floor brush base 11; when the cleaning device is placed on the surface to be cleaned, the second support wheel 143 is also located on the surface to be cleaned.

[0078] In the structure of this embodiment, the second support wheel 143 is directly mounted on the second side of the floor brush base 11, that is, the weight of the second side of the floor brush base 11 is directly transferred to the second support wheel 143. When the cleaning device is placed on the surface to be cleaned, the second support wheel 143 is also located on the surface to be cleaned. When the floor brush assembly is placed on the surface to be cleaned, the second support wheel 143 contacts the surface to be cleaned, so that the second support wheel 143, the cleaning element 12, the roller 13, and the first support wheel 141 support the floor brush base 11 together.

[0079] Since support wheels are provided on the first side and the second side of the floor brush base 11, the elastic force of the first elastic member 142 on the first side will act on the first side of the floor brush base 11, and the torque generated by the elastic force will be balanced by the second support wheel 143, so that the floor brush assembly has stronger stability when placed on the surface to be cleaned, and when the surface to be cleaned where the floor brush assembly is placed is a non-horizontal inclined surface, the floor brush assembly will not be flipped over by the elastic force of the first elastic member 142.

[0080] The above describes a first implementation method of installing the second support wheel 143 on the floor brush base 11. The second support wheel 143 may also be installed on the floor brush base 11 through the following second implementation method.

[0081] The second implementation method of installing the second support wheel 143 on the floor brush base 11 is as follows: Specifically, the support wheel assembly 14 also includes a second support wheel 143 and a second elastic member, and the second support wheel 143 is installed on the second side of the floor brush base 11 through the second elastic member; when the cleaning equipment is placed on the surface to be cleaned, the first elastic member 142 and the second elastic member are both in a compressed state, and the first elastic force generated by the compression of the first elastic member 142 is greater than the second elastic force generated by the compression of the second elastic member; the elastic force difference between the first elastic force and the second elastic force is used to balance the weight difference between the first side of the floor brush base 11 and the second side of the floor brush base 11.

[0082] In this embodiment, the second support wheel 143 provided on the second side of the floor brush base 11 has a similar structure to the first support wheel 141 provided on the first side, and the second support wheel 143 is provided on the second side of the floor brush base 11 through a second elastic member. At the same time, the center of gravity of the second support wheel 143 is also lower than the roller 13 and the cleaning element 12; the structure of the second support wheel 143 and the second elastic member is set as follows: when the cleaning device is placed on the surface to be cleaned, that is, when the first support wheel 141 and the second support wheel 143 are both located on the surface to be cleaned, the first elastic force generated by the compression of the first elastic member 142 is greater than the second elastic force generated by the compression of the second elastic member, so that the first side and the second side of the floor brush base 11 are subjected to different elastic forces, and the elastic force difference between the first elastic force and the second elastic force can balance the weight difference between the first side and the second side of the floor brush base 11.

[0083] In fact, in this embodiment, not only is the second support wheel 143 provided, but the second support wheel 143 is also installed on the floor brush base 11 through the second elastic member. When the cleaning device is placed on the surface to be cleaned, the second support wheel 143 will balance the torque generated by the first elastic member 142, so that the floor brush assembly has stronger stability. At the same time, since the first elastic member 142 and the second elastic member are provided on the first side and the second side at the same time, the first support wheel 141 and the second support wheel 143 both become floating structures, so that the first support wheel 141 and the second support wheel 143 can always contact the surface to be cleaned even on surfaces to be cleaned with different concave and convex shapes, so that the floor brush assembly can always remain stable during the cleaning process.

[0084] Since the first elastic force of the first elastic member 142 will offset part of the weight of the first side, and the second elastic force of the second elastic member will offset part of the weight of the second side, and the action of the elastic forces is mutual, it is equivalent to the first elastic member 142 offsetting part of the weight of the first side and releasing it to the surface to be cleaned through the first support wheel 141, and at the same time, the second elastic member offsets part of the weight of the second side and releases it to the surface to be cleaned through the second support wheel 143, thereby reducing the pressure of the cleaning element 12 on the ground, and further reducing the degree of wear of the cleaning element 12 during operation.

[0085] In this embodiment, in order to balance the weight difference between the first side of the floor brush base 11 and the second side of the floor brush base 11, when the cleaning device is placed on the surface to be cleaned, it is necessary to make the first elastic member 142 and the second elastic member both in a compressed state, and make the first elastic force generated by the first elastic member 142 greater than the second elastic force generated by the second elastic member. In a specific embodiment, this effect can be achieved by setting a difference in elastic coefficients of the first elastic member 142 and the second elastic member or controlling a difference in elastic deformation of the first elastic member 142 and the second elastic member, as follows.

[0086] The first embodiment, in which the difference in elastic coefficients between the first elastic member 142 and the second elastic member is set so that the first elastic force generated by the first elastic member 142 is greater than the second elastic force generated by the second elastic member, is as follows: the elastic coefficient of the first elastic member 142 is set to be greater than the elastic coefficient of the second elastic member, and when the cleaning device is placed on the surface to be cleaned, the compression deformation amount of the first elastic member 142 is the same as the compression deformation amount of the second elastic member.

[0087] In this structure, the elastic coefficient of the first elastic member 142 is greater than the elastic coefficient of the second elastic member. When the cleaning device is placed on the surface to be cleaned, the compression deformation of the first elastic member 142 and the second elastic member is the same. The elastic coefficient of the first elastic member 142 is greater than the elastic coefficient of the second elastic member, so that the elastic force generated by the first elastic member 142 is greater than the elastic force generated by the second elastic member.

[0088] In a second embodiment, the first elastic force generated by the first elastic member 142 is greater than the second elastic force generated by the second elastic member by controlling the difference in elastic deformation between the first elastic member 142 and the second elastic member. The elastic coefficient of the first elastic member 142 is set to be the same as the elastic coefficient of the second elastic member. When the cleaning device is placed on the surface to be cleaned, the compression deformation of the first elastic member 142 is greater than the compression deformation of the second elastic member.

[0089] In this structure, the elastic coefficient of the first elastic member 142 and the second elastic member are the same. When the cleaning device is placed on the surface to be cleaned, the elastic coefficient of the first elastic member 142 is equal to the elastic coefficient of the second elastic member, and the compression deformation of the first elastic member 142 is greater than the compression deformation of the second elastic member, so that the elastic force generated by the first elastic member 142 is greater than the elastic force generated by the second elastic member.

[0090] In the above two implementations in which the first elastic force generated by the first elastic member 142 is greater than the second elastic force generated by the second elastic member, the elastic coefficients or elastic deformation amounts of the elastic members are set to be different so that the first elastic force generated by the first elastic member 142 is greater than the second elastic force generated by the second elastic member.

[0091] In addition, the elastic coefficient and elastic deformation of the elastic member can also be set to have differences, so that the first elastic force generated by the first elastic member 142 is greater than the second elastic force generated by the second elastic member. Specifically, the elastic coefficient of the first elastic member 142 is set to be greater than the elastic coefficient of the second elastic member, and when the cleaning device is placed on the surface to be cleaned, the compression deformation of the first elastic member 142 is also greater than the compression deformation of the second elastic member. It can be understood that no matter which structure is adopted, the elastic force difference between the first elastic force and the second elastic force can just balance the weight difference between the first side of the floor brush base 11 and the second side of the floor brush base 11.

[0092] The above is an introduction to how to set the first support wheel 141 and the second support wheel 143 on the floor brush base. In order to further explain in detail how to set the first support wheel 141 and the second support wheel 143 on the floor brush base, the specific structure and connection method of the support wheel and the elastic member are described in detail below. Since the first support wheel 141 and the second support wheel 143 can be set on the floor brush base in a similar manner, the specific structure and connection method of the support wheel and the elastic member are described below by taking the first support wheel 141 and the first elastic member 142 as an example.

[0093] like Figure 6 As shown, Figure 6 A partial cross-sectional view of the first support wheel in the floor brush assembly provided in the first embodiment. The first support wheel 141 includes a first frame 1411 and a first support wheel body 1412; the first support wheel body 1412 is rotatably mounted on the first frame 1411 via a rotating shaft; the first end of the first elastic member 142 abuts against the first frame 1411 of the first support wheel 141, and the second end of the first elastic member 142 abuts against the floor brush base 11.

[0094] Specifically, the first frame 1411 is a base structure for installing the first support wheel 141 and connecting the first elastic member 142, and the first frame 1411 is provided with installation positions for the first support wheel 141 and the first elastic member 142. In addition, the first support wheel 141 is rotatably installed on the first frame 1411 through a rotating shaft, and the two ends of the first elastic member 142 are respectively in contact with the first support wheel 141 and the floor brush base 11. When the cleaning device is placed on the surface to be cleaned, the first support wheel body 1412 contacts the surface to be cleaned, and the first elastic member 142 between the first frame 1411 and the floor brush base 11 is compressed, and the elastic force generated by the first elastic member 142 acts on the floor brush base 11 through the abutment position between the second end of the first elastic member 142 and the floor brush base 11.

[0095] In order to prevent the first elastic member 142 from shifting when compression deformation occurs, thereby ensuring the effect of the first elastic member 142 on the floor brush base 11, it can be limited by a limiting structure, which can be specifically achieved by the following two limiting structures.

[0096] In the first specific embodiment of the limiting structure, in order to prevent the second end of the first elastic member 142 from being offset in the lateral direction relative to the floor brush base 11, a cavity for accommodating the first elastic member 142 is provided on the floor brush base 11. Figure 6 As shown, a first cavity 111 is provided on the floor brush base 11 ; a first elastic member 142 is provided inside the first cavity 111 , and a second end of the first elastic member 142 abuts against an abutting surface in the first cavity 111 .

[0097] The abutting surface refers to the surface in the first cavity 111 for abutting against the first elastic member 142, and is generally selected as the top inner wall surface of the first cavity 111. Since the first elastic member 142 is arranged in the first cavity 111, the first elastic member 142 will be restricted by the cavity wall of the first cavity 111 when it is deformed. Therefore, even if the floor brush base 11 leaves the surface to be cleaned and causes the first elastic member 142 to be stretched instantly, or the floor brush base 11 falls from a high place and causes the first elastic member 142 to be compressed instantly, the first cavity 111 will protect the first elastic member 142 and prevent it from popping out from the installation position.

[0098] Furthermore, if Figure 6 As shown, a first limiter 15 may be disposed in the first cavity 111 ; the first limiter 15 is disposed at the abutting position between the second end of the first elastic member 142 and the abutting surface to limit the movable space of the first elastic member 142 in the first cavity 111 .

[0099] Specifically, the first position-limiting member 15 is a structure for limiting the position of the second end of the first elastic member 142, and the purpose is to keep the second end of the first elastic member 142 in the abutting position with the abutting surface. There are many specific structures of the first position-limiting member 15, which depend on the structure of the first elastic member 142. For example, if the first elastic member 142 is a spring, the first position-limiting member 15 can be set as a boss that is easy to process, and the first elastic member 142 is sleeved on the boss and connected to the abutting surface. Of course, the first position-limiting member 15 can also be set as other structures such as a limiting rib and a block, which are not limited here.

[0100] After the second end of the first elastic member 142 is limited by the first limiting member 15, the movable space of the first elastic member 142 in the first cavity 111 is also limited, so that the first elastic member 142 is not easy to collide and rub with the cavity wall of the first cavity 111 when elastic deformation occurs.

[0101] The above is the first specific implementation of the limiting structure. In another specific implementation of the limiting structure, in order to prevent the first end of the first elastic member 142 from being offset in the lateral direction relative to the first frame 1411, a limiting member can be provided on the first frame 1411 to maintain the abutment between the first elastic member 142 and the first frame 1411. Figure 6 A second stopper 16 is disposed on the first frame 1411 ; the second stopper 16 is disposed at the abutting position between the first elastic member 142 and the first frame 1411 to achieve abutment between the first end of the first elastic member 142 and the first frame 1411 .

[0102] Specifically, the second position-limiting member 16 is a structure for limiting the position of the first end of the first elastic member 142 , so as to keep the first end of the first elastic member 142 at abutting position with the first frame 1411 .

[0103] There are many specific structures of the second limiter 16. For example, a feasible implementation method can be as follows: Figure 6 and Figure 7 As shown, Figure 7 The schematic diagram of the structure of the first frame provided for the first embodiment is specifically as follows: the first elastic member 142 is configured as a spring; the second limiting member 16 is configured to include a central limiting member 161; the first elastic member 142 is nested on the central limiting member 161. The central limiting member 161 may refer to a limiting column, a limiting rib, etc. The central limiting member 161 is a structure that can nest the first elastic member 142 to achieve the purpose of limiting. Through the central limiting member 161, the first elastic member 142 will be deformed based on the central limiting member 161, so that the deformation direction is controllable.

[0104] Further, such as Figure 7 As shown, the second limiting member 16 may further include a limiting sleeve 162; the first elastic member 142 is disposed in the limiting space of the limiting sleeve 162. The limiting sleeve 162 forms a limiting space similar to the first cavity 111, thereby limiting the movable space of the first end of the first elastic member 142. Moreover, in the case where the first elastic member 142 fails in the central limiting member 161, the setting of the limiting sleeve 162 causes the first elastic member 142 to be spatially restricted, thereby enhancing the limiting effect on the first elastic member 142.

[0105] In addition, since the first elastic member 142 makes the first support wheel 141 a floating structure, the retracted position of the first support wheel 141 can be further limited by a limiter. Specifically, a third limiter 17 is provided on the floor brush base 11 or the first frame 1411; the third limiter 17 is provided on the moving path of the first support wheel 141 as the first elastic member 142 expands and contracts, so as to limit the displacement space of the first support wheel 141 for retraction.

[0106] The third limiting member 17 can be configured as follows Figure 7 The stopper is shown to limit the retracted position of the first support wheel 141. By setting the third limiter 17, even if the surface to be cleaned is uneven, the first support wheel 141 will not hit the floor brush base 11 when passing over the convex surface to be cleaned, and the first elastic member 142 will not be excessively deformed.

[0107] In addition, in order to ensure that the cleaning device equipped with the floor brush assembly can move normally when turning during the cleaning process, the first supporting wheel 141 can be set as a universal wheel.

[0108] In this embodiment, in order to improve the cleaning effect of the floor brush assembly on the surface to be cleaned, a scraper assembly 18 is arranged around the cleaning element 12. The scraper assembly 18 is used to scrape off the dirt on the surface to be cleaned, and the scraper assembly 18 is arranged between the cleaning element 12 and the roller 13. When the cleaning device is placed on the surface to be cleaned, the scraper assembly 18 also contacts the surface to be cleaned. For details on the structure of the scraper assembly, please refer to Figure 8 , which is a schematic structural diagram of the scraper assembly provided in the first embodiment. In this embodiment, the first support wheel 141 can be set on the scraper assembly 18.

[0109] The above process introduces the specific structure of the first support wheel 141 and the first elastic member 142 and the connection method therebetween. If the second side of the floor brush base 11 is provided with a second support wheel 143 and a second elastic member, the specific structure of the second support wheel 143 and the second elastic member and the connection method therebetween can refer to the specific structure of the first support wheel 141 and the first elastic member 142 and the connection method therebetween described above.

[0110] Specifically, the second support wheel 143 may include a second frame and a second support wheel body, and a second cavity may be provided on the second side of the floor brush base 11, so that the two ends of the second elastic member are respectively in contact with the contact surfaces of the second frame and the second cavity. Of course, various stoppers may be further provided to limit the second elastic member, so that the second elastic member maintains a good matching relationship with the second frame and the floor brush base 11, respectively. For details, please refer to the description of the specific structure of the first support wheel 141 and the first elastic member 142 and the connection method therebetween, which will not be repeated here.

[0111] The cleaning equipment provided by the present application is introduced in detail above. The floor brush assembly of this cleaning equipment is provided with a first support wheel and a first elastic member on the first side of the floor brush base where the weight is large. When the cleaning equipment is placed on the surface to be cleaned, that is, when the cleaning element and the roller are in contact with the surface to be cleaned, the first support wheel is also on the surface to be cleaned, so that the first elastic member is in a compressed state, and the elastic force generated by it will offset part of the weight of the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base, thereby balancing the pressure load of the two ends of the cleaning element on the ground, reducing the wear difference at both ends of the cleaning element, and extending the service life of the cleaning element. At the same time, due to the structure of this floor brush assembly, the pressure of the two ends of the cleaning element on the ground is the same, which improves the cleaning efficiency of the cleaning equipment.

[0112] Second embodiment

[0113] Corresponding to the first embodiment, the second embodiment of the present application further provides a floor brush assembly, which may be the floor brush assembly in the cleaning device provided in the first embodiment.

[0114] The floor brush assembly comprises: a floor brush base, a cleaning element, a roller and a supporting wheel assembly;

[0115] The cleaning element and the roller are both rotatably mounted on the floor brush base;

[0116] The support wheel assembly is arranged on the side of the floor brush base facing the surface to be cleaned;

[0117] The support wheel assembly includes a first support wheel and a first elastic member, and the first support wheel is installed on the first side of the floor brush base through the first elastic member; the weight of the first side of the floor brush base is greater than the weight of the second side of the floor brush base;

[0118] When the floor brush base is placed on the surface to be cleaned, the first elastic member is in a compressed state, thereby providing elastic force to the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base.

[0119] The specific structure of this type of floor brush assembly can refer to the structure of the floor brush assembly of the cleaning device in the first embodiment, and the details will not be repeated here.

[0120] Since the floor brush assembly of this embodiment is provided with a first support wheel and a first elastic member on the first side of the floor brush base where the weight is large, when the floor brush base is placed on the surface to be cleaned, that is, the cleaning element and the roller are in contact with the surface to be cleaned, and the first support wheel is also on the surface to be cleaned, the first elastic member is in a compressed state, and the elastic force generated by the elastic member will offset part of the weight of the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base, thereby balancing the pressure load of the two ends of the cleaning element on the ground, reducing the wear difference at the two ends of the cleaning element, and extending the service life of the cleaning element. At the same time, due to the structure of this floor brush assembly, the pressure of the two ends of the cleaning element on the ground is the same, which improves the cleaning efficiency of the cleaning assembly.

[0121] It should be noted that, although several structures, components or units for realizing related functions are mentioned in the above detailed description, such division is not mandatory. In fact, according to the specific implementation of the present application, the features and functions of two or more structures, components or units described above can be concretized in one structure, component or unit. Conversely, the features and functions of one structure, component or unit described above can be further divided into multiple components, structures or units to be concretized.

[0122] The technical solution provided in the embodiment of the present application is described below in conjunction with specific application scenarios.

[0123] Application Scenario 1

[0124] When the user uses the cleaning device to clean the surface to be cleaned, the user first places the floor brush assembly of the cleaning device on the surface to be cleaned. In the process of placing the floor brush assembly on the surface to be cleaned, since the floor brush assembly is provided with a first supporting wheel and a first elastic member, the first supporting wheel in the floor brush assembly will first contact the surface to be cleaned. At this time, the cleaning element and the roller have not yet contacted the surface to be cleaned. After the first supporting wheel contacts the surface to be cleaned, under the action of the gravity of the floor brush assembly, the cleaning element and the roller contact the surface to be cleaned, and the first supporting wheel compresses the first elastic member to cause the first elastic member to deform. The first elastic member provides elastic force to the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base. At this time, the pressures of both ends of the cleaning element on the ground are the same, and the roller brush starts to clean the surface to be cleaned.

[0125] Application Scenario 2

[0126] When the user uses the cleaning device to clean the surface to be cleaned, the user first places the floor brush assembly of the cleaning device on the surface to be cleaned. In the process of placing the floor brush assembly on the surface to be cleaned, since the floor brush assembly is provided with a first supporting wheel, a second supporting wheel, a first elastic member and a second elastic member, the first supporting wheel and the second supporting wheel in the floor brush assembly will first contact the surface to be cleaned. At this time, the cleaning element and the roller have not yet contacted the surface to be cleaned. After the first supporting wheel and the second supporting wheel contact the surface to be cleaned, under the action of gravity of the floor brush assembly, the cleaning element and the roller contact the surface to be cleaned, the first supporting wheel compresses the first elastic member to cause the first elastic member to deform, the second supporting wheel compresses the second elastic member to cause the second elastic member to deform, the deformation amount of the first elastic member is the same as the deformation amount of the second elastic member, the first elastic member provides a first elastic force to the first side of the floor brush base, and the first elastic member provides a second elastic force to the second side of the floor brush base. The elastic force difference between the first elastic force and the second elastic force is used to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base. At this time, the pressures of both ends of the cleaning element on the ground are the same, and the roller brush starts to clean the surface to be cleaned.

[0127] Application Scenario 3

[0128] When the user uses the cleaning device to clean the surface to be cleaned, the user first places the floor brush assembly of the cleaning device on the surface to be cleaned. In the process of placing the floor brush assembly on the surface to be cleaned, since the floor brush assembly is provided with a first support wheel, a second support wheel and a first elastic member, the first support wheel in the floor brush assembly will first contact the surface to be cleaned. At this time, the second support wheel, the cleaning element and the roller have not yet contacted the surface to be cleaned. After the first support wheel contacts the surface to be cleaned, under the action of gravity of the floor brush assembly, the second support wheel, the cleaning element and the roller contact the surface to be cleaned, and the first support wheel compresses the first elastic member to cause the first elastic member to deform. The first elastic member provides elastic force to the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base. At this time, the pressures of both ends of the cleaning element on the ground are the same, and the roller brush starts to clean the surface to be cleaned.

[0129] In addition, although the components and the installation methods of the components or devices in the present application are described in a specific order in the drawings, this does not require or imply that the components or devices must be designed according to the specific components or the installation methods of the components, or that all the components shown must be included to achieve the desired results. Additionally or alternatively, some components can be omitted, multiple components can be combined into one component to achieve corresponding functions, and / or one component can be decomposed into multiple components to achieve corresponding functions, etc.

[0130] Although the present application is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present application. Any technical personnel in this field may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

Claims

1. A cleaning device, characterized in that: The cleaning device includes a floor brush assembly; The floor brush assembly comprises: a floor brush base (11), a cleaning element (12), a roller (13) and a supporting wheel assembly (14); The cleaning element (12) and the roller (13) are both rotatably mounted on the floor brush base (11); The support wheel assembly (14) is arranged on a side of the floor brush base (11) facing the surface to be cleaned; The support wheel assembly (14) comprises a first support wheel (141) and a first elastic member (142); the first support wheel (141) is mounted on a first side of the floor brush base (11) via the first elastic member (142); the weight of the first side of the floor brush base (11) is greater than the weight of the second side of the floor brush base (11); When the cleaning device is placed on the surface to be cleaned, the first elastic member (142) is in a compressed state, thereby providing elastic force to the first side of the floor brush base (11) to balance the weight difference between the first side of the floor brush base (11) and the second side of the floor brush base (11).

2. The cleaning device according to claim 1, characterized in that The support wheel assembly (14) further comprises a second support wheel (143), wherein the second support wheel (143) is mounted on a second side of the floor brush base (11); the second support wheel (143) is also located on the surface to be cleaned.

3. The cleaning device according to claim 1, characterized in that: The support wheel assembly (14) further comprises a second support wheel (143) and a second elastic member, wherein the second support wheel (143) is mounted on the second side of the floor brush base (11) via the second elastic member; When the cleaning device is placed on the surface to be cleaned, the first elastic member (142) and the second elastic member are both in a compressed state, and the first elastic force generated by the compression of the first elastic member (142) is greater than the second elastic force generated by the compression of the second elastic member; the elastic force difference between the first elastic force and the second elastic force is used to balance the weight difference between the first side of the floor brush base (11) and the second side of the floor brush base (11).

4. The cleaning device according to claim 3, characterized in that: The elastic coefficient of the first elastic member (142) is greater than the elastic coefficient of the second elastic member; When the cleaning device is placed on the surface to be cleaned, the compression deformation amount of the first elastic member (142) is the same as the compression deformation amount of the second elastic member.

5. The cleaning device according to claim 3, characterized in that: The elastic coefficient of the first elastic member (142) is the same as the elastic coefficient of the second elastic member; When the cleaning device is placed on the surface to be cleaned, the compression deformation amount of the first elastic member (142) is greater than the compression deformation amount of the second elastic member.

6. The cleaning device according to claim 1, characterized in that The first supporting wheel (141) comprises a first frame (1411) and a first supporting wheel body (1412); the first supporting wheel body (1412) is rotatably mounted on the first frame (1411) via a rotating shaft; the first end of the first elastic member (142) abuts against the first frame (1411) of the first supporting wheel (141), and the second end of the first elastic member (142) abuts against the floor brush base (11).

7. The cleaning device according to claim 6, characterized in that The floor brush base (11) is provided with a first cavity (111); the first elastic member (142) is arranged inside the first cavity (111), and the second end of the first elastic member (142) abuts against a supporting surface in the first cavity (111).

8. The cleaning device according to claim 7, characterized in that A first limiting member (15) is arranged in the first cavity (111); the first limiting member (15) is arranged at a contact position between the second end of the first elastic member (142) and the abutting surface to limit the movable space of the first elastic member (142) in the first cavity (111).

9. The cleaning device according to claim 6, characterized in that A second limiting member (16) is provided on the first frame (1411); the second limiting member (16) is provided at a contact position between the first elastic member (142) and the first frame (1411) to achieve contact between the first end of the first elastic member (142) and the first frame (1411).

10. The cleaning device according to claim 9, characterized in that The first elastic member (142) is configured as a spring; the second limiting member (16) comprises a central limiting member (161); and the first elastic member (142) is nested on the central limiting member (161).

11. The cleaning device according to claim 9, characterized in that The second limiting member (16) comprises a limiting sleeve (162); the first elastic member (142) is arranged in a limiting space of the limiting sleeve (162).

12. The cleaning device according to claim 6, characterized in that A third limiting member (17) is provided on the floor brush base (11) or the first frame (1411); the third limiting member (17) is provided on a moving path of the first supporting wheel (141) as the first elastic member (142) extends and retracts, so as to limit the displacement space of the first supporting wheel (141) for retraction.

13. The cleaning device according to claim 1, characterized in that The first end of the cleaning element (12) is located on the first side of the floor brush base (11), and the second end of the cleaning element (12) is located on the second side of the floor brush base (11); a motor is provided at the first end of the cleaning element (12).

14. The cleaning device according to claim 1, characterized in that The first supporting wheel (141) is configured as a universal wheel.

15. A floor brush assembly, characterized in that: include: Floor brush base, cleaning element, roller and support wheel assembly; The cleaning element and the roller are both rotatably mounted on the floor brush base; The support wheel assembly is arranged on a side of the floor brush base facing the surface to be cleaned; The support wheel assembly includes a first support wheel and a first elastic member, and the first support wheel is installed on the first side of the floor brush base through the first elastic member; the weight of the first side of the floor brush base is greater than the weight of the second side of the floor brush base; When the floor brush base is placed on the surface to be cleaned, the first elastic member is in a compressed state, thereby providing elastic force to the first side of the floor brush base to balance the weight difference between the first side of the floor brush base and the second side of the floor brush base.

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