Floor brushes for surface cleaning devices

Abstract

The present invention relates to a floor brush for a surface cleaning device, comprising a housing, a dust suction port at the bottom of the housing, a roller brush installation cavity arranged adjacent to the dust suction port, a roller brush assembly installed in the roller brush installation cavity, and an airflow channel connected to the dust suction port, wherein the roller brush assembly comprises a roller brush body, end caps located on both sides of the roller brush body, the roller brush body having a first side end, a second side end, and an outer peripheral wall surface between the first side end and the second side end, the end caps being fixedly supported on the housing, and a wind wheel being fixedly arranged on the first side end and / or the second side end of the roller brush body, and when the roller brush body rotates, an airflow cyclone from the outside to the inside is formed at the wind wheel. The floor brush can effectively clean dust at the edge of the floor brush, and effectively improve the occurrence of the stuck phenomenon caused by hair entering the roller brush assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular relates to a floor brush for a surface cleaning device. Background Art

[0002] At present, the conventional floor brush opening is basically in the center of the floor brush assembly or close to one side, so the suction generated by the suction opening will reduce the effect on the edges on both sides (or the other side edge), and the reduced suction cannot form an effective wind speed flow, and the dust on the edge cannot be effectively cleaned. In addition, the usual roller brush assembly includes a roller brush body, bristles arranged on the roller brush body, and a motor for driving the roller brush body to rotate. In the current conventional roller brush assembly, the roller brush end cover and the roller brush body are in a relative motion state. In order to maintain mutual non-friction, there is a certain gap between the two. When the product is in use, due to the small side suction and poor cleaning effect, the hair and garbage particles on the ground are easily accumulated on the side of the roller brush and entangled on the roller brush, running with the roller brush. During the movement, the hair and garbage particles are easy to enter the interior of the roller brush assembly from the above-mentioned gap, causing the gap to shrink and form a jamming phenomenon. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a floor brush for a surface cleaning device, which can effectively clean dust at the edge of the floor brush and effectively improve the occurrence of jamming caused by hair entering the interior of the roller brush assembly.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The brush assembly comprises a roller brush body that can rotate around a transverse axis, and end covers located on both sides of the roller brush body. The roller brush body has a first side end, a second side end and an outer peripheral wall surface between the first side end and the second side end, and a plurality of bristles are arranged on the outer peripheral wall surface. The end covers are fixedly supported on the shell, and a wind wheel is fixedly arranged on the first side end and / or the second side end of the roller brush body. The wind wheel is located on the inner side of the corresponding end cover and the two are adjacent to each other, and the wind wheel protrudes radially outward relative to the corresponding end cover; when the roller brush body rotates, airflow cyclones from the outside to the inside are formed at the wind wheels respectively.

[0006] In the above technical solution, preferably, the wind wheel includes a wind wheel body with a mounting hole, a plurality of wind blades are evenly connected along the circumferential direction of the wind wheel body, and the wind wheel is sleeved on the first side end and / or the second side end of the roller brush body.

[0007] In the above technical solution, it is further preferred that the wind blade is "L"-shaped, including a connecting portion and a bending portion, and the connecting portion extends radially outwardly along the wind wheel body.

[0008] In the above technical solution, preferably, the wind wheel body and the wind blades are integrally formed.

[0009] In the above technical solution, preferably, the wind wheel and the roller brush body are distributed on the same component.

[0010] In the above technical solution, preferably, the first side end and the second side end of the roller brush body both have a storage cavity recessed inwardly, and a bearing support cover capable of rotating together with the roller brush body is fixedly arranged in the storage cavity, and the bearing support cover has an installation cavity recessed inwardly, and a bearing is installed in the installation cavity.

[0011] In the above technical solution, it is further preferred that the bearing comprises a bearing inner ring and a bearing outer ring, and the bearing support cover is fixedly arranged with the bearing outer ring.

[0012] In the above technical solution, preferably, the inner center of the roller brush body has a main axis along the horizontal direction, the main axis has a first end and a second end, the first end cover has a first hollow core, the first end extends into the first hollow core, the second end cover has a second hollow core, and the second end extends into the second hollow core.

[0013] In the above technical solution, preferably, the shell further comprises a roller brush cover which can be opened and closed, and the roller brush cover is located directly below the roller brush body. When the roller brush cover is opened, the roller brush body is at least partially exposed.

[0014] In the above technical solution, preferably, the wind wheel is fixedly provided on both the first side end portion and the second side end portion of the roller brush body.

[0015] The beneficial effects of the present invention are as follows: the floor brush cooperates with the roller brush body and rotates with the roller brush to form a cyclone system, forming a lateral (from outside to inside) wind flow, which helps to improve the floor brush's ability to capture and clean edge dust, and can blow away hair at the edge, effectively improving the phenomenon of hair and garbage particles entering the roller brush assembly and causing it to get stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of the structure of the floor brush of the present invention (the observation angle is the main viewing angle);

[0017] Attached Figure 2 Another structural schematic diagram of the floor brush of the present invention (the observation angle is an upward viewing angle);

[0018] Attached Figure 3 It is a structural schematic diagram of the roller brush assembly of the present invention;

[0019] Attached Figure 4 An axial cross-sectional view of the roller brush assembly of the present invention;

[0020] Attached Figure 5 is a schematic structural diagram of a first wind wheel of the present invention;

[0021] Among them: 1. Shell; 2. Dust suction port; 3. Roller brush installation cavity; 4. Roller brush assembly; 5. Roller brush body; 6. First end cover; 7. Second end cover; 8. First side end; 9. Second side end; 10. Peripheral wall; 11. Bristles; 12. First wind wheel; 13. Second wind wheel; 14. First gap; 15. Second gap; 16. Installation hole; 17. Wind wheel body; 18. Fan blade; 19. Connecting part; 20. Bending part; 201. Storage cavity; 21. Bearing support cover; 22. Bearing; 23. Main shaft; 24. First end; 25. Second end; 26. First hollow core; 27. Second hollow core; 28. Roller brush cover. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the embodiments shown in the accompanying drawings: Example

[0023] like Figure 1-Figure 5The floor brush shown can be used on surface cleaning devices such as vacuum cleaners and steam cleaners. It comprises a shell 1, a dust suction port 2 facing downward is opened at the front of the shell 1, a roller brush installation cavity 3 is provided on the inner side of the shell 1 adjacent to the dust suction port 2, a roller brush assembly 4 is installed in the roller brush installation cavity 3, gas flow is formed between the roller brush installation cavity 3 and the dust suction port 2, the roller brush assembly 4 comprises a roller brush body 5 which can rotate around a transverse axis, a first end cover 6 and a second end cover 7 are provided on both sides of the roller brush body 5, the roller brush body 5 comprises a first side end 8, a second side end 9 and an outer peripheral wall surface 10 between the first side end 8 and the second side end 9, a plurality of bristles 11 are provided on the outer peripheral wall surface 10, the first end cover 6 and the second end cover 7 are respectively fixedly supported on the shell 1, a first wind wheel 12 is fixedly provided on the first side end 8 of the roller brush body 5, the first wind wheel 12 is located on the inner side of the first end cover 6 and the two are adjacently arranged, a second wind wheel 13 is fixedly provided on the second side end 9 of the roller brush body 5, the second wind wheel 13 is located on the inner side of the second end cover 7 and the two are adjacently arranged, the first wind wheel 12 is relative to the first end cover 6 protrudes radially outward, and the second wind wheel 13 protrudes radially outward relative to the second end cover 7. When the roller brush body 5 rotates, the first wind wheel 12 and the second wind wheel 13 respectively form airflow cyclones from the outside to the inside, which help improve the ability of the floor brush to capture and clean edge dust. In addition, due to the installation of the first wind wheel 12 and the second wind wheel 13, the first wind wheel 12 and the first side end 8 are tightly combined, and the second wind wheel 13 and the second side end 9 are tightly combined. The original gap between the first end cover 6 and the first side end 8 and the gap between the second end cover 7 and the second side end 9 are transferred to the first gap 14 between the first end cover 6 and the first wind wheel 12 and the second gap 15 between the second end cover 7 and the second wind wheel 13. The first gap 14 and the second gap 15 are reduced relative to the original gap. In addition, due to the arrangement of the first wind wheel 12 and the second wind wheel 13, the lateral wind speed flow from the outside to the inside is strengthened, and hair and the like will not enter the first gap 14 and the second gap 15, which effectively improves the phenomenon that hair and garbage particles enter the roller brush assembly 4 and cause jamming.

[0024] In this embodiment, the first wind wheel 12 and the second wind wheel 13 have the same structure. The first wind wheel 12 is specifically described below. The first wind wheel 12 includes a wind wheel body 17 with a mounting hole 16, and a plurality of wind blades 18 are evenly connected along the circumferential direction of the wind wheel body 17, wherein the wind wheel body 17 and the wind blades 18 are integrally formed, and the wind blades 18 are "L"-shaped, including a connecting portion 19 and a bending portion 20, and the connecting portion 19 extends radially outwardly along the wind wheel body 17, and the first wind wheel 12 and the second wind wheel 13 are respectively sleeved on the first side end 8 and the second side end 9 of the roller brush body 6. Of course, the first wind wheel 12 and the second wind wheel 13 can also be arranged to be distributed on the same component as the roller brush body 5, that is, the wind wheel 12 and the wind wheel 13 are integrally formed with the roller brush body 5.

[0025] In this embodiment, the first side end 8 and the second side end 9 of the roller brush body 5 both have a storage cavity 201 that is recessed inward. Referring to the accompanying drawings, taking the left end as an example, a bearing support cover 21 that can rotate with the roller brush body 5 is fixedly arranged in the storage cavity 201 of the first side end 8, and the bearing support cover 21 has an installation cavity that is recessed inward, and a bearing 22 is installed in the installation cavity. The bearing 22 includes a bearing inner ring and a bearing outer ring, and the bearing support cover 21 is fixedly arranged with the bearing outer ring. The inner center of the roller brush body 5 has a main shaft 23 in the horizontal direction, and the main shaft 23 has a first end 24 and a second end 25. The first end cover 6 has a first hollow core portion 26, and the first end portion 24 extends into the first hollow core portion 26. Similarly, the second end cover 7 on the right side has a second hollow core portion 27, and the second end portion 25 extends into the second hollow core portion 27.

[0026] In addition, the housing 1 is provided with a roller brush cover 28 that can be opened and closed. The roller brush cover 28 is located directly below the roller brush body 5. When the roller brush cover 28 is opened, the roller brush body 5 is exposed; when the roller brush cover 28 is closed, the roller brush cover 28 forms a sealed connection with the housing 1 where it contacts. The provision of the roller brush cover 28 facilitates the user to clean solid debris entangled on the roller brush body 5.

[0027] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A floor brush for a surface cleaning device, characterized in that: The invention comprises a housing (1), a dust suction port (2) located at the bottom of the housing (1), a roller brush installation cavity (3) arranged adjacent to the dust suction port (2), a roller brush assembly (4) installed in the roller brush installation cavity (3), and an air flow channel connected to the dust suction port (2); the roller brush assembly (4) comprises a roller brush body (5) capable of rotating around a transverse axis, and end covers (6, 7) located on both sides of the roller brush body (5); the roller brush body (5) has a first side end (8), a second side end (9), and an outer peripheral wall surface (10) between the first side end (8) and the second side end (9); a plurality of bristles (11) are arranged on the outer peripheral wall surface (10); and the end covers (6, 7) are fixedly supported. On the shell (1), a wind wheel (12, 13) is fixedly arranged on the first side end (8) and / or the second side end (9) of the rolling brush body (5); the wind wheel (12, 13) is tightly engaged with the corresponding first side end (8) or second side end (9); the wind wheel (12, 13) is located on the inner side of the corresponding end cover (6, 7) and the two are arranged adjacent to each other; there is a gap (14, 15) between the wind wheel (12, 13) and the inner side of the corresponding end cover (6, 7); the wind wheel (12, 13) protrudes radially outward relative to the corresponding end cover (6, 7); when the rolling brush body (5) rotates, an airflow cyclone from the outside to the inside is formed at the wind wheel (12, 13).

2. The floor brush for a surface cleaning device according to claim 1, characterized in that: The wind wheel (12, 13) comprises a wind wheel body (17) provided with a mounting hole (16), a plurality of wind blades (18) being evenly connected along the circumferential direction of the wind wheel body (17), and the wind wheel (12, 13) is sleeved on the first side end (8) and / or the second side end (9) of the roller brush body (5).

3. The floor brush for a surface cleaning device according to claim 2, characterized in that: The wind blade (18) is in an "L" shape, comprising a connecting portion (19) and a bent portion (20), wherein the connecting portion (19) extends outwardly in the radial direction of the wind wheel body (17).

4. The floor brush for a surface cleaning device according to claim 2, characterized in that: The wind wheel body (17) and the wind blades (18) are integrally formed.

5. The floor brush for a surface cleaning device according to claim 1, characterized in that: The wind wheel (12, 13) and the roller brush body (5) are distributed on the same component.

6. The floor brush for a surface cleaning device according to claim 1, characterized in that: The first side end (8) and the second side end (9) of the roller brush body (5) both have a storage cavity (201) that is recessed inwardly, a bearing support cover (21) that can rotate together with the roller brush body (5) is fixedly arranged in the storage cavity (201), and the bearing support cover (21) has a mounting cavity that is recessed inwardly, and a bearing (22) is mounted in the mounting cavity.

7. The floor brush for a surface cleaning device according to claim 6, characterized in that: The bearing (22) comprises a bearing inner ring and a bearing outer ring, and the bearing support cover is fixedly arranged on the bearing outer ring.

8. The floor brush for a surface cleaning device according to claim 1, characterized in that: The inner center of the roller brush body (5) has a main axis (23) in the transverse direction, and the main axis (23) has a first end (24) and a second end (25). The end covers (6, 7) located on both sides of the roller brush body (5) include a first end cover (6) located at the first end (24) and a second end cover (7) located at the second end (25). The first end cover (6) has a first hollow core (26), and the first end (24) extends into the first hollow core (26). The second end cover (7) has a second hollow core (27), and the second end (25) extends into the second hollow core (27).

9. The floor brush for a surface cleaning device according to claim 1, characterized in that: The housing (1) further comprises a rolling brush cover (28) that can be opened and closed, wherein the rolling brush cover (28) is located directly below the rolling brush body (5), and when the rolling brush cover (28) is opened, at least a portion of the rolling brush body (5) is exposed.

10. The floor brush for a surface cleaning device according to claim 1, characterized in that: The wind wheels (12, 13) are fixedly arranged on the first side end (8) and the second side end (9) of the rolling brush body (5).

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