Dust collection floor brush

Abstract

The utility model provides a dust collection floor brush which comprises a floor brush seat with a dust collection cavity, a rotary brush body arranged in the dust collection cavity and provided with a rotary brush body cavity, an end cover plate arranged at one end of the rotary brush body, a bearing cover plate matched with the end cover plate and a driving assembly used for driving the rotary brush body to rotate. The bearing cover plate comprises a bearing cover concave part, a bearing cover center hole located in the center of the bearing cover concave part, a bearing cover flange arranged around one end of the bearing cover center hole, a bearing chamber communicated with the bearing cover center hole and located in the bearing cover flange, and a bearing cover sleeve arranged around the other end of the bearing cover center hole. The bearing cover outer wall is located on the outer side of the bearing cover concave part, and the concave part edge is located on the outer side of the bearing cover concave part. The dust collection floor brush has the advantages that due to the fact that different radial gaps exist between the rotating brush body and the bearing cover plate, hair moves in the direction away from the end cover, hair winding is avoided, reliable rotation of the rotating brush body is guaranteed, and the working reliability of the dust collection floor brush is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of household cleaning technology, and in particular to a vacuum floor brush. Background Technology

[0002] To complement the use of vacuum cleaners, the floor brush is used to pick up debris from the floor. It is usually equipped with a rotating brush body that rotates around an axis. During use, debris can easily accumulate on the outer surface of the rotating brush body. If too much debris accumulates, especially human or animal hair, it can easily enter the bearing through the end caps at both ends, preventing the rotating brush body from rotating. In severe cases, it can damage the rotating brush motor. Similar technology can be found in Chinese Invention Publication Patent CN1806740A. Therefore, it is necessary to improve it. Utility Model Content

[0003] The purpose of this utility model is to provide a vacuum floor brush that can effectively solve the above-mentioned technical problems. By having different radial fits between the rotating brush body and the bearing cover plate, the rotating brush body is prevented from getting tangled in hair, and the hair is moved away from the end cover, ensuring the reliable rotation of the rotating brush body and guaranteeing the working reliability of the vacuum floor brush.

[0004] To achieve the purpose of this utility model, the present utility model provides the following technical solution: a dust-collecting floor brush, comprising a floor brush seat with a dust collection chamber, a rotating brush body disposed in the dust collection chamber and having a rotating brush body cavity, an end cover plate disposed at one end of the rotating brush body, a bearing cover plate cooperating with the end cover plate, and a drive assembly for driving the rotating brush body to rotate, wherein the bearing cover plate includes a bearing cover recess, a bearing cover center hole located at the center of the bearing cover recess, a bearing cover flange disposed around one end of the bearing cover center hole, a bearing chamber connected to the bearing cover center hole and located within the bearing cover flange, a bearing cover sleeve disposed around the other end of the bearing cover center hole, a bearing cover outer wall located outside the bearing cover recess, and a recess edge located outside the bearing cover recess, wherein there is a continuous interference fit and clearance fit between the rotating brush body and the bearing cover plate in the rotation direction.

[0005] Based on the above technical solution, the following supplementary technical solutions are further included:

[0006] The end cap plate includes an end cap base, an end cap hole located on one side of the end cap base, and an end cap sleeve extending from one end of the end cap base along its axial direction and capable of being inserted into the rotating brush cavity.

[0007] The end cap sleeve portion has a sleeve cavity inside, a plurality of sleeve ribs located on the outer surface and spaced circumferentially, and an axial portion located inside the sleeve cavity and having a central shaft hole, wherein the central shaft hole is connected to the end cap hole.

[0008] The end cap base has an axial gap with the bearing cover plate in the axial direction of the rotating brush body, and the end cap flange has a radial gap with the outer wall of the bearing cover, wherein the radial gap is smaller than the axial gap.

[0009] It also includes a floor brush cover plate located on the floor brush holder, an adapter movably connected to the floor brush holder and located downstream of the dust collection chamber, and a rotating brush bar assembly disposed on the rotating brush body, wherein the rotating brush bar assembly includes a plurality of first rotating brush bars and a plurality of second rotating brush bars, wherein the first rotating brush bars are disposed adjacent to the corresponding second rotating brush bars.

[0010] The rotating brush body is provided with a plurality of rotating brush body grooves in its circumferential direction to accommodate the corresponding card arms, wherein a first rotating brush strip or a second rotating brush strip is provided between two adjacent rotating brush body grooves.

[0011] There is a first radial gap between the edge of the recess and the outer wall of the bearing cover, which partially accommodates the rotating brush assembly.

[0012] The bearing cover outer wall includes a bearing cover outer wall root, a bearing cover outer wall top, a bearing cover outer wall inclined portion extending from the bearing cover outer wall root to the bearing cover outer wall top, and a bearing cover inner wall located inside the bearing cover outer wall inclined portion and in contact with the rotating brush bar assembly, wherein there is a second radial gap between the edge of the recess and the bearing cover inner wall, wherein the second radial gap is smaller than the first radial gap.

[0013] The first rotating brush strip is a bristle brush strip, while the second rotating brush strip is a leather strip, wherein the radial distance between the end of the second rotating brush strip and the center of the rotating brush body is greater than the radial distance between the end of the first rotating brush strip and the center of the rotating brush body.

[0014] The floor brush holder includes guide ribs located above the dust collection chamber and adjacent to the bearing cover plate, which guide the hair toward the center of the rotating brush body.

[0015] The beneficial effects of this utility model are: by having different radial fits between the rotating brush body and the bearing cover plate, the hair moves away from the end cover, avoiding hair entanglement, ensuring the reliable rotation of the rotating brush body, and guaranteeing the working reliability of the vacuum floor brush. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2This is a perspective view of the present invention from a first-person perspective;

[0019] Figure 3 This is a perspective view of the present invention from a second perspective;

[0020] Figure 4 This is a cross-sectional view of the present invention from one perspective;

[0021] Figure 5 for Figure 4 An enlarged view of part A.

[0022] Figure 6 This is a cross-sectional view of the present invention from another perspective;

[0023] Figure 7 This is a first perspective view of the middle cover plate of this utility model;

[0024] Figure 8 This is a second perspective view of the middle cover plate of this utility model;

[0025] Figure 9 This is a first perspective view of the bearing cover plate in this utility model;

[0026] Figure 10 This is a second perspective view of the bearing cover plate in this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0029] Example: Figure 1-10 As shown, this utility model discloses an embodiment of a vacuum floor brush, which includes: a floor brush cover plate 100, a floor brush base 200 located on a floor brush seat 200 and having a dust collection chamber 220, a rotating brush body 300 disposed in the dust collection chamber 220 and having a rotating brush body cavity 320, a rotating brush strip assembly 340 disposed on the rotating brush body 300, an end cover plate 400 disposed at one end of the rotating brush body 300, a bearing cover plate 500 cooperating with the end cover plate 400, a drive assembly 600 for driving the rotating brush body 300 to rotate, a bearing cover plate support 700 connected to the bearing cover plate 500, and an adapter 800 movably connected to the floor brush base 200 and located downstream of the dust collection chamber 220.

[0030] The floor brush cover 100 is a rectangular plastic part. The floor brush holder 200, also an injection molded part, is used to contact the surface to be cleaned and is reciprocating. It includes a dust collection chamber 220 at the front end, a suction port 224 connected to the dust collection chamber 220 and located upstream of the adapter 800, and a comb-like part 260 located at the rear end of the dust collection chamber 220 for combing the hair of the rotating brush body 300. The floor brush cover 100 covers the rear end of the floor brush holder. The adapter 800 is located at the rear end of the floor brush holder 200. The floor brush holder 200 includes a guide rib 240 located above the dust collection chamber 220 and adjacent to the bearing cover 500, which guides the hair towards the middle of the rotating brush body 300, causing the hair to move away from the end cover. The middle of the rotating brush body 300 is adjacent to the suction port 224.

[0031] The rotating brush body 300 rotates around a horizontal axis parallel to the surface to be cleaned. Its surface is circumferentially provided with several rotating brush body grooves to accommodate the rotating brush strip assembly 340. The rotating brush strip assembly 340 includes multiple first rotating brush strips 342 and multiple second rotating brush strips 344, wherein the first rotating brush strips 342 are arranged adjacent to corresponding second rotating brush strips 344. A first rotating brush strip 342 or a second rotating brush strip 344 is disposed between two adjacent rotating brush body grooves. Preferably, the first rotating brush strips 342 are bristle strips, and the second rotating brush strips 344 are leather strips.

[0032] Combination Figure 7-8As shown, the end cap plate 400 includes an end cap base 420, an end cap hole 440 located on one side of the end cap base 420, and an end cap sleeve portion 460 extending from one end of the end cap base 420 along its axial direction and capable of extending into the rotating brush body cavity 320. The end cap base 420 includes an annular end cap base side edge 424, an end cap flange 426 located outside the end cap base side edge 424, and a plurality of end cap base protrusions 428 formed inside the end cap base side edge 424 and radially toward the end cap sleeve portion 460. The end cap sleeve portion 460 has a sleeve cavity 464 inside, a plurality of sleeve ribs 468 located on the outer surface and circumferentially spaced, and an axle-shaped portion 480 located in the sleeve cavity 464 and having a central shaft hole 484, wherein the central shaft hole 484 communicates with the end cap hole 440. There is an axial gap between the end cap base 420 and the bearing cover plate 500 in the axial direction of the rotating brush body 300, and there is a radial gap between the end cap flange 426 and the outer wall 560 of the bearing cover, wherein the radial gap is smaller than the axial gap.

[0033] Combination Figure 9-10 As shown, the bearing cover plate 500 includes a bearing cover recess 504, a bearing cover center hole 508 located at the center of the bearing cover recess 504, a bearing cover flange 510 disposed around one end of the bearing cover center hole 508, a bearing chamber 514 communicating with the bearing cover center hole 508 and located within the bearing cover flange 510, a connecting shaft 520 axially passing through the bearing cover center hole 508 and the central shaft hole 484, a bearing cover sleeve 530 disposed around the other end of the bearing cover center hole 508, a bearing 540 sleeved on the connecting shaft 520 and received by the bearing chamber 514, a bearing cover outer wall 560 located outside the bearing cover recess 504, and a recess edge 506 located outside the bearing cover recess 504. A first radial gap exists between the recess edge 506 and the bearing cover outer wall 560, partially accommodating the rotating brush assembly 340. The bearing cover outer wall 560 includes a bearing cover outer wall root 564, a bearing cover outer wall top 566, a bearing cover outer wall inclined portion 568 extending from the bearing cover outer wall root 564 to the bearing cover outer wall top 566, and a bearing cover inner wall 569 located inside the bearing cover outer wall inclined portion 568 and abutting against the rotating brush assembly 340, wherein a second radial gap exists between the recessed edge 506 and the bearing cover inner wall 569, wherein the second radial gap is smaller than the first radial gap. In this embodiment, the bearing cover plate 500 is the bearing cover plate of the non-driving end of the rotating brush body 300, or it can be the bearing cover plate of the driving end.

[0034] The drive assembly 600 is a DC motor used to drive the rotating brush body 300 to rotate around an axis. The drive assembly 600 is located at the rear end of the floor brush holder 200 and is shielded by the floor brush cover plate 100.

[0035] The bearing cover plate support 700 has a support hole that engages with the bearing cover sleeve 530, and the bearing cover plate support 700 is detachable to facilitate the removal of the rotating brush body 300.

[0036] The adapter 800 can rotate relative to the brush holder 200 in the front, back, left and right directions, and the adapter 800 connects to the metal tube to transmit dust-laden airflow to the vacuum cleaner host.

[0037] During operation, under the high-speed rotation of the drive assembly 600, the first rotating brush strip 342 and the second rotating brush strip 344 of the rotating brush body 300 rotate and beat the ground to be cleaned, generating a dust-laden airflow. The dust-laden airflow enters the dust collection chamber 220, enters the hose through the suction port 224 on the rear side of the dust collection chamber 220, and then flows towards the vacuum cleaner host through the adapter 800. Finally, it is filtered and discharged to the outside. Due to the radial direction of the first rotating brush strip 342 and the second rotating brush strip 344 and the inner wall of the bearing cover plate 500, The interference fit and clearance fit allow the first and second rotating brush bars 342 and 344 to be deformed by the inner wall 569 of the bearing cover during the interference fit, while the first and second rotating brush bars 342 and 344 recover their deformation during the clearance fit. In particular, the second rotating brush bar 344, which has better elasticity, elastically separates the hair. Moreover, the circumferential continuous interference fit and clearance fit, and the continuous deformation and recovery process, make it easier to prevent hair from tangling. Furthermore, the combing by the comb teeth 260 also reduces hair tangling.

[0038] The advantages of this invention are: by having different radial fits between the rotating brush body and the bearing cover plate, the rotating brush body is prevented from getting tangled in hair, and the hair is made to move away from the end cover, ensuring the reliable rotation of the rotating brush body and guaranteeing the working reliability of the vacuum floor brush.

[0039] The above are merely preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A dust extraction floor brush characterised in that It includes: The ground brush seat (200) has a dust collecting cavity (220), a rotating brush body (300) provided in the dust collecting cavity (220) and having a rotating brush body cavity (320), an end cover plate (400) provided at one end of the rotating brush body (300), a bearing cover plate (500) matched with the end cover plate (400), and a driving assembly (600) for driving the rotating brush body (300) to rotate, wherein the bearing cover plate (500) comprises a bearing cover recess (504), a bearing cover center hole (508) located at the center of the bearing cover recess (504), a bearing cover flange (510) provided around one end of the bearing cover center hole (508), a bearing chamber (514) in communication with the bearing cover center hole (508) and located in the bearing cover flange (510), a bearing cover sleeve (530) provided around the other end of the bearing cover center hole (508), a bearing cover outer wall (560) located outside the bearing cover recess (504), and a recess edge (506) located outside the bearing cover recess (504), wherein there is a continuous interference fit and a gap fit in the rotation direction between the rotating brush body (300) and the bearing cover plate (500).

2. A dust brush according to claim 1, characterised in that: The end cover plate (400) comprises an end cover base (420), an end cover hole (440) located at one side of the end cover base (420), and an end cover sleeve portion (460) extending along the axial direction of the end cover base (420) from one end thereof and capable of extending into the rotating brush body cavity (320).

3. A dust brush according to claim 2, wherein: The end cover sleeve portion (460) has a sleeve cavity (464) inside, a plurality of sleeve protrusions (468) located on the outer surface and arranged circumferentially at intervals, and a shaft portion (480) located inside the sleeve cavity (464) and having a central shaft hole (484), wherein the central shaft hole (484) is in communication with the end cover hole (440); wherein the end cover base (420) comprises an annular end cover base side edge (424), an end cover turn-up (426) located outside the end cover base side edge (424), and a plurality of end cover base protrusions (428) formed on the inside of the end cover base side edge (424) and radially towards the end cover sleeve portion (460).

4. A dust brush according to claim 3, wherein: There is an axial gap between the end cover base (420) and the bearing cover plate (500) in the axial direction of the rotating brush body (300), and there is a radial gap between the end cover turn-up (426) and the bearing cover outer wall (560), wherein the radial gap is smaller than the axial gap.

5. A dust brush according to claim 1 or 2 or 3 or 4, characterised in that It also includes a ground brush cover plate (100) located on the ground brush seat (200), an adapter (800) movably connected with the ground brush seat (200) and located downstream of the dust collecting cavity (220), and a rotating brush strip assembly (340) provided on the rotating brush body (300), wherein the rotating brush strip assembly (340) comprises a plurality of first rotating brush strips (342) and a plurality of second rotating brush strips (344), wherein the first rotating brush strips (342) are arranged adjacent to the corresponding second rotating brush strips (344).

6. A dust brush according to claim 5, wherein: The rotating brush body (300) is circumferentially provided with a plurality of rotating brush body grooves for accommodating corresponding card arms (538), wherein a first rotating brush strip (342) or a second rotating brush strip (344) is arranged between two adjacent rotating brush body grooves.

7. The dust brush of claim 5 wherein: The first radial gap for partially accommodating the rotating brush strip assembly (340) exists between the recess edge (506) and the bearing cover outer wall (560).

8. A dust brush according to claim 7, characterised in that: The bearing cover outer wall (560) comprises a bearing cover outer wall root (564), a bearing cover outer wall top (566), a bearing cover outer wall inclined portion (568) extending from the bearing cover outer wall root (564) to the bearing cover outer wall top (566), and a bearing cover inner wall (569) located inside the bearing cover outer wall inclined portion (568) and abuttingly contacted with the rotating brush strip assembly (340), wherein a second radial gap exists between the recess edge (506) and the bearing cover inner wall (569), and the second radial gap is smaller than the first radial gap.

9. A dust brush according to claim 8, wherein: The first rotating brush strip (342) is a brush strip, and the second rotating brush strip (344) is a leather strip, wherein the radial distance between the end of the second rotating brush strip (344) and the center of the rotating brush body (300) is greater than the radial distance between the end of the first rotating brush strip (342) and the center of the rotating brush body (300).

10. The dust brush of claim 5, wherein: The brush seat (200) comprises a guide rib (240) located above the dust collecting cavity (220) and adjacent to the bearing cover plate (500) and facilitating the hair to be guided to the middle of the rotating brush body (300).

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