Rolling brush assembly, cleaning head and surface cleaning equipment
Through the design of the D-shaped roller brush assembly, the problem of cylindrical roller brush cleaning blind spots is solved, and effective cleaning and efficient cleaning of the wall corners is achieved.
Patent Information
- Application Number
- CN202421959509.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-13
AI Technical Summary
The existing roller brushes are cylindrical, and there are blind spots when cleaning corners of the wall, making it difficult to effectively clean.
D-shaped roller brush components are adopted, including rags, roller brush brackets and mounting brackets. The roller brush bracket is composed of a roller and a support plate. The support plate is equipped with a rolling structure. The roller drives the rag to rotate through friction. The support plate ensures that the rag is tight and increases the ability to clean the corners of the wall.
Effectively clean the blind spots in the corners of the wall, improve cleaning efficiency, ensure that the rag does not deform during rotation, and maintains a good cleaning effect.
Smart Images
Figure CN223248109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cleaning equipment, in particular to a roller brush assembly, a cleaning head and a surface cleaning device. Background Art
[0002] Surface cleaning equipment typically includes a suction motor, which generates a suction airflow to collect dirt into a recovery bin. To improve cleaning efficiency, surface cleaning equipment typically utilizes a cleaning head. This head is equipped with a roller brush assembly, which removes loose dust from the surface being cleaned. The rotation of the roller brush sweeps away dust adhering to the surface.
[0003] Currently, roller brushes are generally cylindrical in shape, which has a simpler structure and runs more smoothly. However, due to the cylindrical shape of the roller brush, there is a blind spot when cleaning corners, and users have to use other cleaning methods. Utility Model Content
[0004] In view of the deficiencies in the above-mentioned technologies, the present invention provides a roller brush assembly, a cleaning head and a surface cleaning device, which adopts a roller brush assembly with a different structure from the existing one and can effectively clean the corners of walls.
[0005] On the one hand, the utility model provides a roller brush assembly, comprising
[0006] Wipes, which are used to contact and clean the surface to be cleaned;
[0007] A roller brush bracket, used for supporting the rag; the roller brush bracket has two opposite ends along its axial direction;
[0008] A mounting frame, used for mounting the roller brush bracket;
[0009] The roller brush bracket includes a roller and a support plate arranged in front of the roller along the direction of travel; the roller is rotatably mounted on the mounting frame, one end of the roller is mounted on the mounting frame, and the other end is suspended; one end of the support plate is fixedly mounted on the mounting frame, and the other end is suspended;
[0010] At least one upper rolling structure is installed at the upper end of the support plate, and the upper rolling structure contacts and supports the rag; at least one lower rolling structure is installed at the lower end of the support plate, and the lower rolling structure contacts and supports the rag.
[0011] Optionally, a rotating structure is installed on the support plate, and the rotating structure can be in contact with the roller, and the rotating structure rotates together with the roller under the action of friction force.
[0012] Optionally, the rotating structure is mounted on the support plate via a mounting bracket, the rotating structure is located between the support plate and the roller, and the mounting bracket is retractable relative to the support plate.
[0013] Optionally, a plurality of upper rolling structures are installed on the upper end of the support plate, and the plurality of upper rolling structures are arranged at intervals along the axial direction of the roller brush assembly; and / or
[0014] A plurality of lower rolling structures are installed at the lower end of the support plate, and the plurality of lower rolling structures are arranged at intervals along the axial direction of the roller brush assembly.
[0015] Optionally, the rag includes a base layer and a wiping layer arranged on the surface of the base layer; the roller drives the rag to rotate through the friction force generated between the outer surface and the base layer, and the base layer drives the upper rolling structure and the lower rolling structure to rotate through the friction force.
[0016] Optionally, 4-7 upper rolling structures are installed on the upper end of the support plate; and 4-7 lower rolling structures are installed on the lower end of the support plate.
[0017] Optionally, the drum is provided with at least one groove extending along its circumferential direction, and the inner side of the rag is provided with a protruding structure corresponding to the groove, and the protruding structure cooperates with the groove to limit the axial movement of the rag relative to the drum.
[0018] Optionally, both ends of the drum are provided with boss structures extending in the radial direction, and the boss structures are used to prevent the rag from deviating outwards during the rotation process.
[0019] On the other hand, the present invention also provides a cleaning head, comprising
[0020] A floor brush body, on which a driving motor is installed,
[0021] and the roller brush assembly;
[0022] The drum defines a space for accommodating the driving motor, and the driving motor is configured to drive the drum to rotate.
[0023] On the other hand, the present invention further provides a surface cleaning device, which includes the cleaning head.
[0024] The utility model provides a roller brush assembly, a cleaning head, and a surface cleaning device. The roller brush assembly includes a rag, a roller brush holder, and a mounting bracket. The rag is used to contact and clean the surface to be cleaned. The roller brush holder is used to support the rag. The roller brush holder has two opposing ends along its axial direction. The mounting bracket is used to mount the roller brush holder. The roller brush holder includes a roller and a support plate arranged in front of the roller along the direction of travel; the roller is rotatably mounted on the mounting bracket, with one end of the roller mounted to the mounting bracket and the other end suspended in the air; one end of the support plate is fixedly mounted to the mounting bracket and the other end suspended in the air. At least one upper rolling structure is mounted on the upper end of the support plate, which contacts and supports the rag; at least one lower rolling structure is mounted on the lower end of the support plate, which contacts and supports the rag. By mounting the rolling structure on the support plate, the tension of the rag can be increased as much as possible while ensuring the normal rotation of the rag, so that the rag is in a relatively tight state, thereby improving the ability to clean blind spots in corners. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a structural diagram of a floor scrubber in one embodiment of the present invention;
[0026] Figure 2 This is a structural diagram of a sweeping machine in one embodiment of the present utility model;
[0027] Figure 3 This is an enlarged view of the structure of a cleaning head in one embodiment;
[0028] Figure 4 is a cross-sectional view taken along a direction perpendicular to the axial direction of the roller brush assembly in one embodiment;
[0029] Figure 5 for Figure 4 A magnified view of the structure of area A in the middle;
[0030] Figure 6 is a schematic structural diagram of a cleaning head in another angle according to an embodiment;
[0031] Figure 7 This is a structural diagram of a roller brush assembly in one embodiment;
[0032] Figure 8 This is a structural diagram of the roller brush bracket after being installed on the mounting frame in one embodiment;
[0033] Figure 9 This is a structural diagram of the roller brush bracket after being installed on the mounting frame at another angle;
[0034] Figure 10 is a cross-sectional view of a roller brush assembly in one embodiment;
[0035] Figure 11This is a schematic structural diagram of a cleaning head in an embodiment without a roller brush assembly installed;
[0036] Figure 12 This is a schematic diagram of the structure of a cleaning head with a hidden drive motor in one embodiment;
[0037] Figure 13 for Figure 12 A magnified view of the structure shown in area B. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0039] It should be noted that if directional indications are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their 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 such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0042] refer to Figure 1-13 The present application discloses a surface cleaning device 100, which includes a cleaning head 1 for cleaning a surface to be cleaned. The cleaning head 1 is generally provided with a roller brush assembly 2, which can be installed on a handheld vacuum cleaner, a floor scrubber (refer to Figure 1 ) or a sweeping robot (reference Figure 2 The cleaning head 1 includes a floor brush body 11 and a roller brush assembly 2. The floor brush body 11 is equipped with a driving motor 12. The roller 24 defines a space for accommodating the driving motor 12. The driving motor 12 is configured to drive the roller 24 to rotate.
[0043] refer to Figure 4-10The roller brush assembly 2 includes a rag 21, a roller brush holder 22 and a mounting bracket 23. The rag 21 is used to contact the surface to be cleaned and clean it. The roller brush holder 22 is used to support the rag 21. The roller brush holder 22 has two opposite ends along its axial direction. The mounting bracket 23 is used to mount the roller brush holder 22. The roller brush holder 22 includes a roller 24 and a support plate 25 arranged in front of the roller 24 along the direction of travel. The roller 24 and the support plate 25 jointly support the rag 21 to form a D-shaped cross-section, so that the corners of the wall can be effectively cleaned. In order to facilitate the replacement of the rag 21, the roller 24 can be rotatably mounted on the mounting bracket 23, one end of the roller 24 is mounted to the mounting bracket 23, and the other end is suspended. One end of the support plate 25 is fixedly mounted to the mounting bracket 23, and the other end is suspended. When installing the roller brush assembly 2 to the surface cleaning device 100, first dock the roller 24 to the drive motor 12, then position the free end of the support plate 25 with the docking structure on the cleaning head 1. Finally, the mounting bracket 23 is clipped onto the cleaning head 1 via a snap-fit structure. At least one upper rolling structure 26 is mounted on the upper end of the support plate 25, which contacts and supports the rag 21. At least one lower rolling structure 27 is mounted on the lower end of the support plate 25, which contacts and supports the rag 21. The rag 21 includes a base layer and a wiping layer disposed on the surface of the base layer. The roller 24 drives the rag 21 to rotate through the friction generated between its outer surface and the base layer, and the base layer drives the upper rolling structure 26 and the lower rolling structure 27 to rotate through the friction. The upper rolling structure 26 and the lower rolling structure 27 effectively ensure smooth rotation of the rag 21 around the support plate 25. In this way, the installation method that uses the roller 24 and the support plate 25 to cooperate can effectively reduce cleaning blind spots. The support plate 25 is generally elongated and positioned in front of the drum 24. The rotation of the drum 24 drives the rag 21. Once attached to the support plate 25, the shape of the rag 21 corresponding to the support plate 25 matches the front end of the support plate 25. The support plate 25 is positioned substantially perpendicular to the surface being cleaned, which means the front and bottom portions of the rag 21 are substantially perpendicular. The lower section 32 of the rag 21 (the rag 21 between the drum 24 and the support plate 25) contacts and cleans the surface. The front section 33 of the rag 21 (i.e., the rag 21 in front of the support plate 25) is positioned substantially perpendicular to the surface being cleaned due to the support plate 25. This allows for cleaning of corners, including baseboards. The transition between the lower section 32 and the front section 33 of the rag 21 is substantially perpendicular. This effectively cleans corners and improves cleaning efficiency.
[0044] Because the roller brush holder 22 is suspended and the support plate 25 is relatively long, if used for a long time and squeezed by the rag 21, the support plate 25 will deform toward the roller 24, especially the middle portion of the support plate 25. To ensure that the rag 21 always remains in a normal working state during use and does not deform inward, a rotating structure 28 is installed on the support plate 25. The rotating structure 28 can contact the roller 24 and rotate with the roller 24 under the action of friction. The rotating structure 28 is arranged between the support plate 25 and the roller 24 to support the support plate 25 and ensure that the rag 21 is in a relatively suitable looseness to improve cleaning efficiency.
[0045] refer to Figure 8-10 The rotating structure 28 is mounted on the support plate 25 via a mounting bracket 29. The rotating structure 28 is located between the support plate 25 and the roller 24. The mounting bracket 29 is retractable relative to the support plate 25. The mounting bracket 29 is retractably arranged between the support plate 25 and the roller 24. When the support plate 25 is close to the roller 24, it is convenient to remove and install the rag 21.
[0046] In order to ensure that the rag 21 can rotate with the roller 24, the upper and lower ends of the support plate 25 are provided with rolling structures, which can make the rotation of the rag 21 smoother. The smaller the diameter of the rolling structure, the stronger the ability of the rag 21 to clean the corners.
[0047] However, the smaller the diameter and the longer the rolling structure, the more susceptible it is to axial deformation. If a long, slender rolling structure is used, it can easily deform after a period of use, affecting cleaning efficiency. If the rolling structure is made of metal, the cost is relatively high, and the metal is also susceptible to corrosion due to contact with liquids by the rag 21. Therefore, to further prevent deformation of the rolling structure and ensure effective support for the front section 33 of the rag 21, multiple upper rolling structures 26 can be mounted on the upper end of the support plate 25. These upper rolling structures 26 are spaced apart along the axial direction of the roller brush assembly 2. The axial direction of the roller brush assembly corresponds to the length of the roller. This way, because each rolling structure is relatively short, deformation is less likely to occur during use. Furthermore, multiple lower rolling structures 27 can be mounted on the lower end of the support plate 25. These lower rolling structures 27 are spaced apart along the axial direction of the roller brush assembly 2 to ensure that deformation is less likely to occur during use. Specifically, 4-7 upper rolling structures 26 are mounted on the upper end of the support plate 25. The lower end of the support plate 25 is provided with 4-7 lower rolling structures 27. The upper rolling structure and the lower rolling structure can straighten the front section of the rag as much as possible.
[0048] The rag consists of a base layer and a wiping layer disposed on the base layer's surface. The roller rotates the rag through friction generated between its outer surface and the base layer, which in turn drives the upper and lower rolling structures. To prevent significant axial displacement of the rag 21 during operation, the roller 24 is provided with at least one groove 30 extending along its circumference. The inner side of the rag 21 is provided with a protrusion corresponding to the groove 30. This protrusion cooperates with the groove 30 to limit axial movement of the rag 21 relative to the roller 24.
[0049] Both ends of the drum 24 are provided with boss structures 31 extending in the radial direction. The boss structures 31 are used to prevent the rag 21 from deviating outwards during the rotation process.
[0050] The cleaning head 1 also includes a scraper bar 15, a liquid outlet 16 is provided above the scraper bar 15, and the scraper bar 15 is pivotally mounted on the cleaning head 1. Along the rotation direction of the roller brush, the scraper bar 15 includes a comb tooth end 17 and a pivot end 18. The pivot end 18 is pivotally mounted below the liquid outlet 16 through a pivot shaft, and the comb tooth end 17 can rotate around the pivot end 18. An elastic device 34 is installed between the scraper bar 15 and the cleaning head 1 for applying force to the scraper bar 15 toward the roller brush assembly 2.
[0051] When the cleaning head 1 is mounted on an upright vacuum cleaner or floor scrubber, it is typically pivotally connected to the main body. Because the roller brush assembly 2 differs from conventional roller brushes, particularly in its contact surface with the surface to be cleaned, the roller brush assembly 2 in this application has a relatively large contact surface with the surface to be cleaned, making steering somewhat awkward during the forward and backward push and pull process. Therefore, the present application eliminates the large roller that only rotates in one direction, as used in conventional cleaning heads 1, and instead provides two universal wheels 13. Using universal wheels 13 reduces the user's effort when operating the cleaning head 1. Two small rollers 14 are also provided behind the universal wheels 13. These two small rollers 14 do not contact the ground when the roller brush assembly 2 contacts the surface to be cleaned. When the cleaning head 1 rotates about the universal wheel 13 fulcrum, the roller brush assembly 2 leaves the surface to be cleaned, and the cleaning head 1 is supported by both the universal wheel 13 and the small rollers 14. At this point, the user can drag the entire surface cleaning device 100 along the ground.
[0052] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.
Claims
1. A roller brush assembly, characterized in that: include: Wipes, which are used to contact and clean the surface to be cleaned; A roller brush bracket, used for supporting the rag; The roller brush bracket has two opposite ends along its axial direction; A mounting frame, used for mounting the roller brush bracket; The roller brush bracket includes a roller and a support plate arranged in front of the roller along the direction of travel; the roller is rotatably mounted on the mounting frame, one end of the roller is mounted on the mounting frame, and the other end is suspended; one end of the support plate is fixedly mounted on the mounting frame, and the other end is suspended; At least one upper rolling structure is installed at the upper end of the support plate, and the upper rolling structure contacts and supports the rag; at least one lower rolling structure is installed at the lower end of the support plate, and the lower rolling structure contacts and supports the rag.
2. The roller brush assembly according to claim 1, wherein: A rotating structure is installed on the support plate, and the rotating structure can be in contact with the roller. The rotating structure rotates along with the roller under the action of friction force.
3. The roller brush assembly according to claim 2, wherein: The rotating structure is mounted on the support plate via a mounting bracket. The rotating structure is located between the support plate and the roller. The mounting bracket is retractable relative to the support plate.
4. The roller brush assembly according to any one of claims 1 to 3, wherein: A plurality of upper rolling structures are installed on the upper end of the support plate, and the plurality of upper rolling structures are arranged at intervals along the axial direction of the roller brush assembly; and / or A plurality of lower rolling structures are installed at the lower end of the support plate, and the plurality of lower rolling structures are arranged at intervals along the axial direction of the roller brush assembly.
5. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The rag includes a base layer and a wiping layer arranged on the surface of the base layer; the roller drives the rag to rotate through the friction force generated between the outer surface and the base layer, and the base layer drives the upper rolling structure and the lower rolling structure to rotate through the friction force.
6. The roller brush assembly according to claim 4, wherein: The upper end of the support plate is equipped with 4-7 upper rolling structures; the lower end of the support plate is equipped with 4-7 lower rolling structures.
7. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The drum is provided with at least one groove extending along its circumferential direction, and the inner side of the rag is provided with a protruding structure corresponding to the groove, and the protruding structure cooperates with the groove to limit the axial movement of the rag relative to the drum.
8. The roller brush assembly according to any one of claims 1 to 3, characterized in that: Both ends of the drum are provided with a boss structure extending in a radial direction, and the boss structure is used to prevent the rag from deviating outwards during the rotation process.
9. A cleaning head, characterized in that: include A floor brush body, on which a driving motor is installed, and the roller brush assembly according to any one of claims 1 to 8; The drum defines a space for accommodating the driving motor, and the driving motor is configured to drive the drum to rotate.
10. A surface cleaning device, characterized in that The surface cleaning apparatus comprises the cleaning head of claim 9.