Floor brush assembly of surface cleaning device

Abstract

The utility model belongs to the technical field of cleaning equipment, and discloses a floor brush assembly of a surface cleaning device, which comprises a shell with a roller brush cavity at the front end, a roller brush assembly arranged in the roller brush cavity, and a roller brush cover mounted on the shell and covering the roller brush assembly, the roller brush assembly comprises a roller provided with a cleaning part and a side plate arranged at one end of the roller, the floor brush assembly further comprises a locking structure arranged between the shell and the side plate, the side plate is locked to the outer side wall of the shell through the locking structure, limiting parts matched with each other are arranged between the side plate and the roller brush cover, and the limiting parts are used for limiting shaking of the roller brush assembly. According to the roller brush assembly, the roller brush cover and the side plates are arranged to prevent the roller brush assembly from falling off, and only the roller brush cover and the side plates need to be operated in the process of dismounting and mounting the roller, so that the dismounting and mounting difficulty of the roller brush assembly is reduced, the dismounting and mounting steps of the roller brush assembly are simplified, and the use experience of a user is improved.

Description

Technical Field

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

[0002] With the continuous development of cleaning devices, surface cleaning devices are widely used in people's lives, such as sweeping robots and handheld cleaning devices. These cleaning devices are usually equipped with roller brushes, which can clean the surface by rotating the roller brush relative to the surface to be cleaned. The bristles on the roller brush need to be replaced regularly due to long-term cleaning wear to ensure the cleaning effect. Therefore, the roller brush and the floor brush assembly are generally detachably connected to facilitate the replacement or disassembly and cleaning of the roller brush.

[0003] In order to improve the cleaning efficiency and corner cleaning ability of surface cleaning devices, surface cleaning devices are developing towards the trend of double-edging on both sides. For the solution with double-edged floor brush motor built-in, the inside of the roller brush and the floor brush motor are interference fit through the ribs. Due to the mold ejection direction and convenient assembly, the mouth size of the position where the inside of the roller brush fits with the ribs is larger than the root size. This results in the roller brush having a tendency to move to the side of the roller brush end cover when it is running, which makes it easy for the roller brush to detach from the floor brush assembly.

[0004] In order to increase the connection stability of the roller brush, a larger locking force is usually applied to the roller brush end cover on the detachable side of the roller brush to prevent the roller brush from detaching from the floor brush assembly. This makes it difficult to disassemble and assemble the roller brush or the disassembly and assembly steps are more complicated, which in turn affects the user experience. Utility Model Content

[0005] The present application provides a floor brush assembly of a surface cleaning device to increase the connection stability between a roller brush and the floor brush assembly, while reducing the difficulty of disassembling and assembling the roller brush, so as to improve the user experience.

[0006] The technical solution adopted in this application is:

[0007] A floor brush assembly of a surface cleaning device comprises a shell having a roller brush cavity at the front end, a roller brush assembly arranged in the roller brush cavity, and a roller brush cover installed on the shell and covering the roller brush assembly, the roller brush assembly comprises a roller provided with a cleaning member and a side plate arranged at one end of the roller, and also comprises a locking structure arranged between the shell and the side plate, the side plate is locked to the outer side wall of the shell by the locking structure, and a matching limiter is arranged between the side plate and the roller brush cover, the limiter is used to limit the shaking of the roller brush assembly to prevent the roller brush assembly from falling off.

[0008] Furthermore, a containing cavity is provided in the shell, a water tank is placed in the containing cavity, and the roller brush cover is covered on the water tank.

[0009] Furthermore, the front end of the roller brush cover protrudes forward from the water tank, and the upper port of the water tank has an arc-shaped edge extending forward and upward, and the arc-shaped edge extends to abut against the front end of the roller brush cover, and the limiting member is located on at least one side of the arc-shaped edge.

[0010] Furthermore, a accommodating cavity is provided in the shell, a water tank is placed in the accommodating cavity, the roller brush cover is covered on the water tank, the front end of the roller brush cover protrudes forward from the water tank, the upper port of the water tank has an arc-shaped edge extending forward and upward, and the arc-shaped edge extends to abut against the front end of the roller brush cover.

[0011] Furthermore, the limiting member includes a groove provided on the roller brush cover and a limiting protrusion provided on the side plate, and the limiting protrusion cooperates with the groove and is located on at least one side of the arc edge.

[0012] Furthermore, the locking structure includes a locking portion, a clamping portion, and an elastic portion acting on the locking portion. The locking portion has a clamping state of clamping with the clamping portion and a avoiding state of elastically avoiding the clamping portion. When the locking portion is in the avoiding state, the elastic portion undergoes elastic deformation.

[0013] Furthermore, the clamping portion includes a clamping section that is clamped with the locking portion and a stop section located on opposite sides of the clamping section, and the stop section is stop-matched with the locking portion.

[0014] Furthermore, a lock seat is provided on the side of the shell, the locking portion and the elastic portion are provided on the lock seat, and the clamping portion is provided on the side plate.

[0015] Furthermore, the locking structure includes a magnetic attraction structure arranged on the shell and a metal part arranged on the side panel.

[0016] Furthermore, a receiving groove is provided on the side of the shell, and the side plate has a matching rib extending into the receiving groove.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0018] 1. The floor brush assembly of the surface cleaning device in the present application comprises a shell having a roller brush cavity at the front end, a roller brush assembly arranged in the roller brush cavity, and a roller brush cover installed on the shell and covering the roller brush assembly, the roller brush assembly comprises a roller provided with a cleaning member and a side plate arranged on one side of the roller, the floor brush assembly also comprises a locking structure arranged between the shell and the side plate, the side plate is locked to the outer side wall of the shell through the locking structure, so as to fix the roller in the roller brush cavity, and a mutually cooperating limiting member is arranged between the side plate and the roller brush cover, the limiting member is used to limit the shaking of the roller brush assembly to prevent the roller brush assembly from falling off, and then when the roller is installed, pressure is first applied to the side plate in the direction of the shell to make The side panels are locked to the outer wall of the shell by a locking structure, and then the roller brush cover is installed to the shell so that the limiter limits the left and right swing of the side panels, so as to increase the stability of the roller and avoid the situation where the roller is separated from the shell when the floor brush assembly is working; when disassembling the roller, first remove the roller brush cover from the shell so that the limiter releases the limit on the side panels, and then apply a pulling force away from the shell to the side panels so that the locking structure releases the fixation of the side panels; in summary, in the process of disassembling and assembling the roller, only the roller brush cover and the side panels need to be operated, thereby reducing the difficulty of disassembling and assembling the roller brush assembly and simplifying the disassembly and assembly steps of the roller brush assembly, thereby improving the user experience.

[0019] 2. As a preferred embodiment of the present application, a accommodating cavity is provided in the shell, and a water tank is placed in the accommodating cavity, that is, the water tank is moved into the floor brush assembly to greatly reduce the thickness of the body, thereby making the body of the surface cleaning device equipped with the floor brush assembly thinner, not only can it enter a low space, but also can enable the body to enter a relatively low area, so that the floor brush assembly can enter the low area to clean dirt, thereby improving the flexibility of the surface cleaning device and enhancing the user experience; at the same time, the roller brush cover is closed on the water tank, and the roller brush cover can also cover the water tank to increase the appearance quality of the floor brush assembly.

[0020] 3. As a preferred embodiment of the present application, the front end of the roller brush cover protrudes forward from the water tank, and the upper port of the water tank has an arc-shaped edge extending forward and upward, and the arc-shaped edge extends to abut against the front end of the roller brush cover, so that dirt on the cleaning member can be thrown onto the arc-shaped edge, so that the arc-shaped edge can be cleaned while cleaning the water tank, thereby further improving the user experience; the limiting member is located on at least one side of the arc-shaped edge to ensure the limiting effect of the limiting member on the roller brush assembly, thereby ensuring the stability of the roller brush assembly.

[0021] 4. As a preferred embodiment of the present application, the limiting member includes a groove provided on the roller brush cover and a limiting protrusion provided on the side panel, the limiting protrusion cooperates with the groove and is located on at least one side of the arc edge, that is, after the roller assembly is installed on the shell and the roller brush cover is installed on the shell, the limiting protrusion cooperates with the groove to achieve the limitation of the side panel, thereby avoiding the side panel from shaking left and right, thereby increasing the connection stability between the roller assembly and the shell; at the same time, the difficulty of installing and disassembling the roller brush cover is reduced, so as to further improve the user experience.

[0022] 5. As a preferred embodiment of the present application, the locking structure includes a locking portion, a clamping portion and an elastic portion acting on the locking portion, the locking portion having a clamping state of clamping cooperation with the clamping portion and a avoiding state of elastic avoiding with the clamping portion, when the locking portion is in the avoiding state, the elastic portion undergoes elastic deformation, when the roller is disassembled and assembled, the clamping portion squeezes the locking portion so that the locking portion squeezes the elastic portion so that the elastic portion is deformed, and the locking portion moves from the clamping state to the avoiding state, and after the clamping portion is separated from the locking portion or the locking portion passes over the clamping portion, the elastic portion restores the deformation so that the locking portion moves to the clamping state, due to the presence of the elastic portion, on the one hand, the connection stability between the side plate and the outer side wall of the shell is increased to reduce the risk of the roller being detached from the shell, and on the other hand, the force required for disassembling and assembling the roller is reduced, thereby reducing the difficulty of disassembling and assembling the roller for the user, thereby further improving the user's usage experience.

[0023] 6. As a preferred embodiment of the present application, the clamping portion includes a clamping section that is clamped with the locking portion and a stop section located on opposite sides of the clamping section, and the stop section cooperates with the locking portion to stop the clamping portion, thereby preventing the locking portion from being separated from the clamping section at the side of the clamping section, so as to further increase the clamping stability between the locking portion and the clamping portion, and further increase the connection stability between the roller and the shell.

[0024] 7. As a preferred embodiment of the present application, a locking seat is provided on the side of the shell, and the locking portion and the elastic portion are provided on the locking seat to reduce the difficulty of installing the locking portion and the elastic portion, thereby reducing the production cost of the floor brush assembly and improving the production efficiency of the floor brush assembly. The clamping portion is provided on the side panel, thereby simplifying the structural complexity of the side panel to achieve the effect of facilitating the production of the side panel, and improving the structural strength of the side panel to increase the connection stability between the roller brush assembly and the shell and increase the service life of the roller brush assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1It is a structural schematic diagram of the floor brush assembly in the first embodiment, mainly showing the connection relationship between the floor brush assembly and the body;

[0027] Figure 2 This is an exploded schematic diagram of the floor brush assembly described in Example 1;

[0028] Figure 3 Schematic diagram of the structure of the floor brush assembly in the first embodiment, in which the roller brush cover is not assembled to the housing;

[0029] Figure 4 for Figure 3 A magnified view of the middle A area;

[0030] Figure 5 It is a partial structural cross-sectional view of the floor brush assembly described in Example 1;

[0031] Figure 6 for Figure 5 Enlarged view of the B area;

[0032] Figure 7 It is a schematic diagram of the structure of the water tank and the roller brush cover in the second embodiment;

[0033] Figure 8 It is a partial structural schematic diagram of the floor brush assembly described in the second embodiment;

[0034] Fig. 9 It is a partial structural cross-sectional view of the floor brush assembly described in the second embodiment;

[0035] Fig.10 It is a partial structural cross-sectional view of the floor brush assembly described in the second embodiment, mainly showing the locking structure;

[0036] Fig.11 for Fig.10 Enlarged view of the middle C area;

[0037] Fig.12 It is a structural schematic diagram of the lock seat described in the second embodiment;

[0038] Fig.13 It is a structural schematic diagram of the roller brush assembly described in Example 2;

[0039] Fig.14 It is a partial structural schematic diagram of the floor brush assembly described in the second embodiment, mainly showing the relationship between the roller brush cover and the water tank;

[0040] Fig.15 It is a structural schematic diagram of the roller brush assembly described in Example 3;

[0041] Fig.16 This is a partial structural schematic diagram of the roller brush assembly in the third embodiment, in which the roller brush cover is omitted;

[0042] Fig.17 for Fig.16 Enlarged view of area D in the middle.

[0043] Reference numerals:

[0044] 1. Shell; 11. Accommodating groove; 111. Locking seat; 112. Anti-slip rib; 12. Positioning part; 13. Roller brush chamber; 131. Driving motor; 132. Driving head; 133. Accommodating chamber;

[0045] 2. Roller brush assembly; 21. Roller; 22. Side plate; 211. Position limiting protrusion; 212. Roller brush handle; 213. Guide portion; 214. Matching rib;

[0046] 3. Roller brush cover; 31. Groove;

[0047] 4. Locking structure; 41. Locking part; 411. Installation cavity; 412. Positioning rib; 413. Stop block; 42. Clamping part; 421. Clamping section; 422. Stop section; 43. Elastic part;

[0048] 5. Water tank;

[0049] 6. Machine body; 61. Sewage bucket; 62. Sewage suction power source; 63. Handle. DETAILED DESCRIPTION

[0050] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0051] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0052] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "circumferential", etc. 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, 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 therefore should not be understood as a limitation on the present application.

[0053] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0055] Reference Figures 1 to 17 A floor brush assembly of a surface cleaning device includes a shell 1 with a roller brush cavity 13 at the front end, a roller brush assembly 2 arranged in the roller brush cavity 13, and a roller brush cover 3 installed on the shell 1 and covering the roller brush assembly 2. The roller brush assembly 2 includes a roller 21 with a cleaning member and a side plate 22 installed at one end of the roller 21. The floor brush assembly also includes a locking structure 4 provided between the shell 1 and the side plate 22. The side plate 22 is locked to the outer side wall of the shell 1 through the locking structure 4. A matching limiter is provided between the side plate 22 and the roller brush cover 3. The limiter is used to limit the shaking of the roller brush assembly 2 to prevent the roller brush assembly 2 from falling off.

[0056] When installing the roller 21, first apply pressure to the side plate 22 in the direction of the shell 1 so that the side plate 22 is locked to the outer wall of the shell 1 through the locking structure 4, and then install the roller brush cover 3 to the shell 1 so that the limiting member limits the left and right shaking of the side plate 22 to increase the stability of the roller 21 and avoid the situation where the roller 21 is separated from the shell 1 when the floor brush assembly is working; when disassembling the roller 21, first remove the roller brush cover 3 from the shell 1 so that the limiting member releases the limit on the side plate 22, and then apply a pulling force to the side plate 22 away from the shell 1 so that the locking structure 4 releases the fixation of the side plate 22.

[0057] In summary, during the disassembly and assembly of the roller 21, only the roller brush cover 3 and the side panel 22 need to be operated, thereby reducing the difficulty of disassembly and assembly of the roller brush assembly 2 and simplifying the disassembly and assembly steps of the roller brush assembly 2, thereby improving the user experience.

[0058] Embodiment 1:

[0059] The floor brush assembly of the present application is used for a surface cleaning device, which includes a body 6, a floor brush assembly hinged to the body 6, a sewage suction system and a power source 62, the sewage suction system includes a suction device, a sewage bucket and a sewage suction channel, the power source 62 includes a battery pack and a power part that provides suction force, the sewage bucket 61 and the power source 62 are arranged on the body 6, and the body 6 is also provided with a water tank 5 and a handle 63. Specifically, one end of the bottom of the body 6 is hinged to the rear end of the floor brush assembly. When cleaning the surface to be cleaned, the handle 63 is pushed to make the handle 63 drive the floor brush assembly to move, and the roller brush assembly 2 rotates to realize the cleaning parts on the roller brush assembly 2 to rub and clean the surface to be cleaned.

[0060] Reference Figures 1 to 6 The floor brush assembly includes a housing 1, a roller brush assembly 2 arranged at the front end of the housing 1, and a roller brush cover 3 arranged on the housing 1 and covering the roller brush assembly 2. The housing 1 is also provided with a walking wheel. The housing 1 is provided with a receiving cavity (not shown in the figure), and a driving motor (not shown in the figure) is provided in the receiving cavity. The roller brush assembly 2 includes a roller 21 and a cleaning member sleeved outside the roller 21 and a side plate 22 for mounting the roller 21 on the housing 1. The side plate 22 is arranged at one end of the roller 21. The front end of the body 1 is provided with a roller brush chamber 13, and the front wall of the shell 1, that is, the cavity wall of the roller brush chamber 13, is also provided with a sewage suction port, a scraper strip is provided above the sewage suction port, and the sewage suction port is connected with the sewage bucket 61 through a sewage suction channel. A driving head 132 connected to a driving motor 131 is provided on one side of the roller brush chamber 13, and the other end of the roller 21 is sleeved on the driving motor 131, and the side plate 22 is connected to the outer side wall of the shell 1, so that the roller 21 is installed in the roller brush chamber 13, and the roller brush assembly 2 is installed on the shell 1 at the same time. When cleaning, the driving motor drives the roller 21 to rotate through the driving head 132, and the cleaning parts on the roller 21 wipe the dirt on the surface of the surface to be cleaned. The scraper continuously scrapes the cleaning parts to scrape off the dirty liquid or dirt on the cleaning parts. The suction device works, and the gas in the sewage bucket 61 is sucked into the fuselage 6, so that negative pressure is formed in the sewage bucket 61. At the same time, the dirty liquid or dirt scraped off by the suction device and the dirty liquid on the surface to be cleaned are sucked into the sewage bucket 61.

[0061] The floor brush assembly also includes a locking structure 4 provided between the shell 1 and the side plate 22. The side plate 22 is locked to the outer wall of the shell 1 through the locking structure 4, thereby fixing the roller 21 in the roller brush cavity 13. In order to prevent the roller brush assembly 2 from falling off during cleaning, a matching limiter is provided between the side plate 22 and the roller brush cover 3. The limiter is used to limit the shaking of the roller brush assembly 2 to prevent the roller brush assembly 2 from falling off.

[0062] In this embodiment, the locking structure 4 includes a magnetic attraction structure arranged on the shell 1 and a metal part arranged on the side panel 22; specifically, the magnetic attraction structure is a magnet arranged on the outer wall of the shell 1, and the metal part is an iron sheet arranged on the side panel 22, so that the magnet and the iron sheet are magnetically connected to lock the roller assembly 2 to the shell, so as to achieve the effect of facilitating the disassembly and assembly of the roller assembly 2.

[0063] Of course, it is understandable that the magnetic attraction structure can also be an electromagnet arranged on the outer wall of the shell 1, and the metal part is an iron sheet arranged on the side plate 22, and when the electromagnet is energized, the electromagnet generates a magnetic attraction force on the iron sheet.

[0064] In this embodiment, the limiting member includes a groove 31 provided on the roller brush cover 3 and a limiting protrusion 211 provided on the side plate 22. The limiting protrusion 211 cooperates with the groove 31 and is located on at least one side of the roller brush cover 3 to further fix the roller brush assembly 2 on the shell 1.

[0065] In this embodiment, refer to Figure 4 and Figure 6 The groove 31 is formed by a second notch arranged on one side of the roller brush cover 3. The roller brush assembly 2 is installed in the roller brush cavity 13. The front end of the roller brush cover 3 covers the roller 21. The limiting protrusion 211 on the side plate 22 is inserted into the inner side of the second notch to further fix the roller brush assembly 2 on the shell 1, thereby further increasing the connection stability between the roller brush assembly 2 and the shell 1.

[0066] It is understandable that the groove 314 may also be a groove-shaped structure provided on one side of the roller brush cover 3 .

[0067] Embodiment 2:

[0068] As the floor brush assembly of the surface cleaning device described in this application, refer to Figures 7 to 14The floor brush assembly includes a shell 1, a roller brush assembly 2 arranged at the front end of the shell 1, and a roller brush cover 3 arranged on the shell 1 and covering the roller brush assembly 2. The shell 1 is provided with a accommodating chamber 133, and the accommodating chamber 133 of the shell 1 is also provided with a water tank 5. The roller brush assembly 2 includes a roller 21 and a cleaning member sleeved outside the roller 21 and a side plate 22 for mounting the roller 21 on the shell 1. The side plate 22 is arranged at one end of the roller 21. The front end of the shell 1 has a roller brush chamber 13. The drive motor 131 is arranged on one side of the roller brush chamber 13, and the drive motor 131 can be flipped outward. When the drive motor 131 is flipped out from near the roller brush chamber 13, the other end of the roller 21 is sleeved on the drive motor 131, and then the roller 21 is pushed inward, and the side plate 22 is connected to the outer side wall of the shell 1 at the same time, so that the roller 21 is installed in the roller brush chamber 13, and the roller brush assembly 2 is installed on the shell 1.

[0069] In this embodiment, refer to Figure 7 , Fig.10 , Fig.11 and Fig.12 The locking structure 4 includes a locking portion 41, a clamping portion 42 and an elastic portion 43 acting on the locking portion 41. The locking portion 41 has a clamping state of clamping with the clamping portion 42 and a avoiding state of elastically avoiding the clamping portion 42. When the locking portion 41 is in the avoiding state, the elastic portion 43 undergoes elastic deformation.

[0070] When the roller 21 is disassembled and assembled, the clamping portion 42 squeezes the locking portion 41 so that the locking portion 41 squeezes the elastic portion 43 so that the elastic portion 43 is deformed, and the locking portion 41 moves from the clamping state to the avoidance state. After the clamping portion 42 is separated from the locking portion 41 or the clamping portion 42 passes over the locking portion 41, the elastic portion 43 recovers its deformation so that the locking portion 41 moves to the clamping state. Due to the presence of the elastic portion 43, on the one hand, the connection stability between the side plate 22 and the outer wall of the shell 1 is increased to reduce the risk of the roller 21 being detached from the shell 1. On the other hand, the force required for disassembling and assembling the roller 21 is reduced, thereby reducing the difficulty of disassembling and assembling the roller 21 for the user, thereby further improving the user's experience.

[0071] In this embodiment, refer to Figure 7 , Fig.10 , Fig.11 and Fig.12 The locking portion 41 is a block structure, and the locking portion 41 has a clamping end that is clamped with the clamping portion 42. The end face of the clamping end is arc-shaped, so that the clamping end can guide the locking portion 41, so as to improve the elastic avoidance effect of the locking portion 41 and the clamping portion 42, reduce the force required for disassembly and assembly of the roller 21, and further achieve the effect of facilitating the disassembly and assembly of the roller 21.

[0072] In this embodiment, refer to Fig.11 and Fig.12 The elastic part 43 is a spring to increase the elastic effect of the elastic part 43 on the locking part 41, and at the same time balance the force on the locking part 41 to increase the stability of the locking part 41. It is understandable that the elastic part 43 can also be an elastic sheet or an elastic column or other elastic structures.

[0073] In this embodiment, refer to Fig.11 The locking portion 41 has a mounting cavity 411 on one side facing the elastic portion 43, and one end of the elastic portion 43 extends into the mounting cavity 411 to increase the connection stability between the elastic portion 43 and the locking portion 41, thereby ensuring the elastic effect of the elastic portion 43 on the locking portion 41, and further increasing the clamping stability between the locking portion 41 and the clamping portion 42.

[0074] Further, see Fig.11 A positioning rib 412 is provided in the installation cavity 411, and the elastic part 43 is sleeved on the outside of the positioning rib 412, so that the positioning rib 412 guides the elastic part 43, so as to increase the stability of the elastic deformation of the elastic part 43, and at the same time, the connection stability between the elastic part 43 and the locking part 41 can be further increased.

[0075] A plurality of locking portions 41 are provided along the vertical direction, and a plurality of clamping portions 42 are provided corresponding to the locking portions 41 .

[0076] Since there are multiple locking parts 41 in the vertical direction, the space utilization of the outer wall of the shell 1 is maximized, the internal space of the shell 1 is saved, and it is more convenient to arrange other components inside the shell 1, so as to avoid the roller 21 and other components inside the shell 1, so as to achieve the effect of facilitating the disassembly and assembly of the roller 21. At the same time, the position of the locking part 41 can be made closer to the position of the handle on the side plate 22, so that the disassembly of the roller 21 is more labor-saving, so as to further enhance the user experience. In addition, the card connection point between the side plate 22 and the outer wall of the shell 1 can be increased to further increase the connection stability between the side plate 22 and the outer wall of the shell 1, thereby improving the quality stability of the floor brush assembly.

[0077] Specifically, two locking parts 41 are provided in the vertical direction to ensure the connection stability between the side plate 22 and the outer wall of the housing 1 and to facilitate the user to disassemble and assemble the roller 21. Multiple elastic parts 43 are provided corresponding to the locking parts 41, so that each locking part 41 is driven by its corresponding elastic part 43 to increase the clamping stability between the locking part 41 and the clamping part 42.

[0078] Reference Fig.14 The side panel 22 has a roller brush handle 212 , and the roller brush handle 212 is extended in a horizontal direction to facilitate the user to disassemble and assemble the roller brush assembly 2 .

[0079] It is understandable that two locking portions 41 may be provided in the horizontal direction, two clamping portions 42 may be provided corresponding to the locking portions 41 , and the roller brush handle 212 may be extended in the vertical direction to facilitate the user to disassemble and assemble the roller brush assembly 2 .

[0080] In this embodiment, refer to Fig.13 The clamping portion 42 includes a clamping section 421 clamped with the locking portion 41 and a stop section 422 located on opposite sides of the clamping section 421. The stop section 422 stops and cooperates with the locking portion 41, thereby preventing the locking portion 41 from being separated from the clamping section 421 at the side of the clamping section 421, so as to further increase the clamping stability between the locking portion 41 and the clamping portion 42, and further increase the connection stability between the roller 21 and the shell 1.

[0081] Reference Fig.13 The end of the stop segment 422 is connected to the end of the clamping segment 421, so that the stop segment 422 and the clamping segment 421 together form a C-shaped structure to increase the structural strength of the clamping segment 421 and the stop segment 422, thereby increasing the clamping effect of the clamping portion 42 and the locking portion 41.

[0082] Reference Figure 7 and Fig.12 A lock seat 111 is disposed on the side of the housing 1 , the locking portion 41 and the elastic portion 43 are disposed on the lock seat 111 , and the clamping portion 42 is disposed on the side plate 22 .

[0083] Specifically, the lock seat 111 is disposed on the outer side wall of the housing 1, and since the locking portion 41 and the elastic portion 43 are disposed on the lock seat 111, the difficulty of installing the locking portion 41 and the elastic portion 43 is reduced, thereby reducing the production cost of the floor brush assembly and improving the production efficiency of the floor brush assembly. At the same time, the clamping portion 42 is disposed on the side plate 22, thereby simplifying the structural complexity of the side plate 22, so as to achieve the effect of facilitating the production of the side plate 22, and improving the structural strength of the side plate 22, so as to increase the connection stability between the roller brush assembly 2 and the housing 1 and increase the service life of the roller brush assembly 2.

[0084] Further, see Fig.12 A stop block 413 is provided at one end of the locking portion 41 away from the locking end. When the locking portion 41 is in the locking state, the stop block 413 cooperates with the lock seat 111 to avoid the risk of separation of the locking portion 41 and the lock seat 111, thereby increasing the connection stability of the locking portion 41 and the lock seat 111.

[0085] Further, refer to Fig.12The lock seat 111 is provided with anti-slip ribs 112 located on opposite sides of the locking portion 41, so that the anti-slip ribs 112 can block the locking portion 41 that is elastically avoiding the clamping portion 42, so as to avoid the locking portion 41 from being separated from the lock seat 111, thereby increasing the connection stability between the locking portion 41 and the lock seat 111. At the same time, the anti-slip ribs 112 can also increase the connection stability between the elastic portion 43 and the lock seat 111, so as to ensure the clamping stability between the locking portion 41 and the clamping portion 42.

[0086] It is understandable that the lock seat 111 can also be disposed on the side plate 22 , that is, the locking portion 41 and the elastic portion 43 are disposed on the side plate 22 , and the clamping portion 42 is disposed on the side of the housing 1 .

[0087] Reference Figure 7 and Figure 8 A accommodating chamber 133 is provided in the shell 1, and a water tank 5 is placed in the accommodating chamber 133. The roller brush cover 3 covers the water tank 5, and the front end of the roller brush cover 3 protrudes forward from the water tank 5. The upper port of the water tank 5 has an arc edge extending forward and upward, and the arc edge extends to abut against the front end of the roller brush cover 3.

[0088] That is to say, the water tank 5 is arranged on the housing 1 to greatly reduce the thickness of the body, so that the floor brush assembly can enter the low area to clean the dirt, thereby improving the user's experience. At the same time, the roller brush cover 3 is covered on the water tank 5, so that the roller brush cover 3 can cover the water tank 5, thereby increasing the aesthetics of the floor brush assembly, thereby improving the appearance quality of the floor brush assembly, thereby improving the user's experience. In addition, the roller brush cover 3 can also block the water tank 5 to increase the connection stability between the water tank 5 and the housing 1. In addition, the upper port of the water tank 5 has an arc-shaped edge extending forward and upward, so that the dirt on the cleaning part can be thrown onto the arc-shaped edge, so that the arc-shaped edge can be cleaned while the water tank 5 is cleaned, thereby improving the user's experience. The arc-shaped edge extends to abut against the front end of the roller brush cover 3, and then the arc-shaped edge can support the roller brush cover 3 to increase the stability of the roller brush cover 3.

[0089] Reference Figure 7 The roller brush cover 3 is fixedly connected to the water tank 5, that is, the roller brush cover 3 and the water tank 5 are integrally arranged to achieve the effect of facilitating the disassembly of the water tank 5.

[0090] In this embodiment, refer to Fig.14 The limiting member includes a groove 31 provided on the roller brush cover 3 and a limiting protrusion 211 provided on the side plate 22. The limiting protrusion 211 cooperates with the groove 31 and is located on at least one side of the arc edge.

[0091] Reference Fig.14A first notch is provided on at least one side of the arc edge, and a second notch is provided on the roller brush cover 3 corresponding to the first notch. The first notch and the second notch together form a groove 31. The roller brush assembly 2 is installed in the roller brush cavity. After the water tank 5 is placed in the accommodating cavity 133, the arc edge and the front end of the roller brush cover 3 cover the roller 21, and the limiting protrusion 211 on the side plate 22 is inserted into the groove 31 to further fix the roller brush assembly 2 on the shell 1.

[0092] Furthermore, grooves 31 are provided on both sides of the arc edge, and two limiting protrusions 211 are provided corresponding to the grooves 31 to increase the limiting position of the side plate 22 to further increase the stability of the roller brush assembly 2 and further achieve the effect of preventing the roller brush assembly 2 from falling off.

[0093] It is understandable that the groove 31 may also be a groove-shaped structure provided on the arc edge.

[0094] The other structures of the second embodiment are the same as those of the first embodiment and will not be described in detail here.

[0095] Embodiment three:

[0096] In this embodiment, refer to Figures 15 to 17 A positioning portion 12 is provided on the side of the housing 1 , and a guide portion 213 is provided on the side plate 22 . The guide portion 213 cooperates with the positioning portion 12 to position the side plate 22 .

[0097] Specifically, the positioning portion 12 is arranged on the outer wall of the shell 1. When installing the roller 21, one end of the roller 21 is first extended into the roller brush cavity 13, and the guide portion 213 is aligned with the positioning portion 12. Then, pressure is continued to be applied to the side plate 22 in the direction of the shell 1 so that the guide portion 213 cooperates with the positioning portion 12 to achieve the positioning of the side plate 22. On the one hand, it is easy to install the side plate 22 on the outer wall of the shell 1. On the other hand, the cooperation between the positioning portion 12 and the guide portion 213 can also increase the connection stability between the side plate 22 and the outer wall of the shell 1, so as to increase the stability of the roller 21.

[0098] In this embodiment, refer to Figures 15 to 17 The guide portion 213 is a block structure provided on the side panel 22, and the positioning portion 12 is a groove structure provided on the outer wall of the shell 1, so that the guide portion 213 and the positioning portion 12 are plugged and matched to realize the guidance of the side panel 22 and the positioning of the side panel 22, so as to reduce the assembly difficulty of the side panel 22 and improve the stability of the side panel 22; at the same time, the positioning portion 12 and the guide portion 213 are hidden on the inner side of the side panel 22 to reduce the size of the floor brush assembly, greatly reduce the cleaning blind area on the side of the floor brush assembly, and improve the appearance quality of the floor brush assembly, so as to further improve the user experience.

[0099] Reference Figures 15 to 17A receiving groove 11 is provided on the side of the shell 1, and the side plate 22 has a matching rib 214 extending into the receiving groove 11. After the roller 21 is installed on the shell 1, the matching rib 214 is located in the receiving groove 11, so that the matching rib 214 cooperates with the groove wall of the receiving groove 11 to realize the positioning of the side plate 22, so as to further increase the stability of the side plate 22, and further increase the stability of the roller 21.

[0100] Reference Figures 15 to 17 The matching rib 214 is an annular structure to ensure the structural strength of the matching rib 214, and at the same time can also increase the structural strength of the side plate 22, thereby further ensuring the stability of the side plate 22, and further increasing the stability of the roller 21. In other embodiments, the matching rib 214 can also be a strip structure arranged at intervals along the circumferential direction.

[0101] In this embodiment, refer to Fig.15 The clamping portion 42 is arranged on the matching rib 214 to increase the stability of the clamping portion 42; the locking portion 41 and the elastic portion 43 are arranged in the accommodating groove 11 to greatly reduce the size of the floor brush assembly, thereby greatly improving the effect of facilitating the miniaturization design of the floor brush assembly.

[0102] Reference Fig.17 The side wall of the receiving groove 11 is inclined so that the notch area of ​​the receiving groove 11 is larger than the bottom area of ​​the receiving groove 11 , and the side surface of the matching rib 214 is inclined corresponding to the side wall of the receiving groove 11 .

[0103] That is to say, the slot opening of the receiving slot 11 is larger so as to facilitate the insertion of the mating rib 214 into the receiving slot 11, thereby reducing the difficulty of assembling the roller brush assembly 2 for the user. At the same time, after the mating rib 214 is assembled with the receiving slot 11, the circumferential surface of the mating rib 214 contacts the slot wall of the receiving slot 11, thereby limiting the side plate 22.

[0104] The other structures of the third embodiment are the same as those of the first embodiment or the second embodiment, and will not be described in detail here.

[0105] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0106] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0107] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A floor brush assembly of a surface cleaning device, comprising a housing with a roller brush cavity at the front end, a roller brush assembly disposed in the roller brush cavity, and a roller brush cover mounted on the housing and covering the roller brush assembly, wherein the roller brush assembly comprises a roller having a cleaning member and a side plate disposed at one end of the roller, characterized in that: It also includes a locking structure arranged between the shell and the side plate, and the side plate is locked to the outer wall of the shell through the locking structure. A matching limiting member is provided between the side plate and the roller brush cover, and the limiting member is used to limit the shaking of the roller brush assembly to prevent the roller brush assembly from falling off.

2. The floor brush assembly of a surface cleaning device according to claim 1, characterized in that: The shell body is provided with a containing cavity, a water tank is placed in the containing cavity, and the roller brush cover is covered on the water tank.

3. The floor brush assembly of a surface cleaning device according to claim 2, characterized in that: The front end of the roller brush cover protrudes forward from the water tank, and the upper port of the water tank has an arc edge extending forward and upward, the arc edge extends to abut against the front end of the roller brush cover, and the limiting member is located at least on one side of the arc edge.

4. The floor brush assembly of a surface cleaning device according to claim 1, characterized in that: A accommodating cavity is provided in the shell, a water tank is placed in the accommodating cavity, the roller brush cover is covered on the water tank, the front end of the roller brush cover protrudes forward from the water tank, the upper port of the water tank has an arc edge extending forward and upward, and the arc edge extends to abut against the front end of the roller brush cover.

5. The floor brush assembly of a surface cleaning device according to claim 4, characterized in that: The limiting member includes a groove arranged on the roller brush cover and a limiting protrusion arranged on the side plate. The limiting protrusion cooperates with the groove and is located on at least one side of the arc edge.

6. The floor brush assembly of a surface cleaning device according to claim 1, characterized in that: The locking structure includes a locking portion, a clamping portion, and an elastic portion acting on the locking portion. The locking portion has a clamping state in which it is clamped with the clamping portion and a avoiding state in which it elastically avoids the clamping portion. When the locking portion is in the avoiding state, the elastic portion undergoes elastic deformation.

7. The floor brush assembly of a surface cleaning device according to claim 6, characterized in that: The clamping portion comprises a clamping section clamped with the locking portion and stop sections located at opposite sides of the clamping section, and the stop sections stop with the locking portion.

8. The floor brush assembly of a surface cleaning device according to claim 6, characterized in that: A lock seat is arranged on the side of the shell, the locking portion and the elastic portion are arranged on the lock seat, and the clamping portion is arranged on the side plate.

9. The floor brush assembly of a surface cleaning device according to claim 1, characterized in that: The locking structure includes a magnetic attraction structure arranged on the shell and a metal piece arranged on the side plate.

10. The floor brush assembly of a surface cleaning device according to claim 1, characterized in that: The side of the shell is provided with a receiving groove, and the side plate has a matching rib extending into the receiving groove.

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