Improved dust collector accessory

Abstract

The utility model provides an improved dust collector accessory which comprises an accessory seat with a rolling brush chamber, a rolling brush body arranged in the rolling brush chamber and provided with a rolling brush body cavity, a driving assembly used for driving the rolling brush body to rotate, a non-driving end cover piece arranged at one end of the rolling brush body and a non-driving bearing cover piece matched with the non-driving end cover piece. Wherein the non-driving end cap base has a non-driving end cap flange that prevents hair from entering the bearing cap. The dust collector accessory has the advantages that hair is prevented from entering the bearing through the end cover turnup, meanwhile, the hair can move towards the direction away from the end cover, hair winding is avoided, reliable rotation of the rolling brush body is guaranteed, and the working reliability of the dust collector accessory is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of household cleaning technology, and in particular to an improved vacuum cleaner accessory. Background Technology

[0002] Vacuum cleaners utilize a motor to drive blades to rotate at high speed, creating negative air pressure within the dust cup. This vacuum then generates suction, simultaneously drawing in air and debris. The dust is then separated through cyclone separators and filters, ultimately achieving a clean indoor environment. To complement the vacuum cleaner, attachments are used to pick up debris from the floor. These often include a rotating roller brush. However, during use, debris can easily become entangled in the roller brush's shaft and bearings, affecting its operation and potentially damaging the motor. Similar technology can be found in Chinese Utility Model Patent CN203506608U, therefore, improvements are necessary. Utility Model Content

[0003] The purpose of this utility model is to provide an improved vacuum cleaner accessory that can effectively solve the above-mentioned technical problems. By flipping the end cap, hair is prevented from entering the bearing, and at the same time, the hair can be moved away from the end cap to avoid hair entanglement, ensuring the reliable rotation of the roller brush body and guaranteeing the working reliability of the vacuum cleaner accessory.

[0004] To achieve the purpose of this utility model, the present utility model provides the following first technical solution: an improved vacuum cleaner accessory, comprising an accessory seat having a roller brush chamber, a roller brush body disposed in the roller brush chamber and having a roller brush cavity, a drive assembly for driving the roller brush body to rotate, a non-drive end cap disposed at one end of the roller brush body, and a non-drive bearing cover cooperating with the non-drive end cap, wherein the non-drive end cap includes a non-drive end cap base and a non-drive end cap extension extending from one end of the non-drive end cap base along its axial direction and capable of extending into the roller brush cavity; wherein the bearing cover includes a bearing cover groove, a connecting shaft located at the center of the bearing groove, a bearing sleeved on the connecting shaft, and a bearing cover sidewall disposed around the bearing cover groove; wherein the non-drive end cap base has a non-drive end cap flange that prevents hair from entering the bearing cover.

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

[0006] The bearing cover includes a bearing cover groove, a connecting shaft located at the center of the bearing groove, a bearing sleeved on the connecting shaft, and a bearing cover sidewall surrounding the bearing cover groove; wherein the extension direction of the non-drive end cover flange is opposite to the non-drive bearing cover groove.

[0007] There is an axial gap between the base of the non-driving end cap and the bearing cover in the axial direction of the roller brush body, and there is a radial gap between the flange of the non-driving end cap and the side wall of the bearing cover, wherein the radial gap is smaller than the axial gap.

[0008] The base of the non-drive end cap is provided with a non-drive end cap annular wall surrounding the extension of the non-drive end cap and located inside the flange of the non-drive end cap, and a plurality of non-drive end cap retaining arms located inside the annular wall of the non-drive end cap.

[0009] It also includes an accessory cover plate located on the accessory seat, a connector movably connected to the accessory seat and located downstream of the roller brush chamber, and a roller brush strip assembly disposed on the roller brush body, wherein the roller brush strip assembly includes a plurality of first roller brush strips and a plurality of second roller brush strips, wherein the first roller brush strips are disposed adjacent to the corresponding second roller brush strips.

[0010] The circumferential surface of the brush body is provided with a plurality of brush body grooves for accommodating the corresponding non-drive end cap arm, wherein a first brush strip or a second brush strip is provided between two adjacent brush body grooves.

[0011] This utility model provides the following second technical solution: an improved vacuum cleaner accessory, comprising an accessory seat having a roller brush chamber, a roller brush body disposed in the roller brush chamber and having a roller brush cavity, a drive assembly for driving the roller brush body to rotate, a drive end cover disposed at one end of the roller brush body, and a drive bearing cover cooperating with the drive end cover, wherein the drive end cover includes a drive end cover base and a drive end cover extension extending from one end of the drive end cover base along its axial direction and capable of extending into the roller brush cavity; wherein the drive end cover base has a drive end cover flange that prevents hair from entering the bearing cover.

[0012] The bearing cover includes a bearing cover groove, a connecting shaft located at the center of the bearing groove, a bearing sleeved on the connecting shaft, and a bearing cover sidewall surrounding the bearing cover groove; the extension direction of the drive end cover flange is away from the bearing cover groove, the base of the drive end cover has an axial gap with the bearing cover in the axial direction of the roller brush body, and there is a radial gap between the drive end cover flange and the bearing cover sidewall, wherein the radial gap is smaller than the axial gap.

[0013] The base of the drive end cover is provided with a drive end cover annular wall surrounding the drive end cover extension and located inside the drive end cover flange, and a plurality of drive end cover retaining arms located inside the drive end cover annular wall.

[0014] It also includes an accessory cover plate located on the accessory seat, a connector movably connected to the accessory seat and located downstream of the roller brush chamber, and a roller brush strip assembly disposed on the roller brush body, wherein the roller brush strip assembly includes a plurality of first roller brush strips and a plurality of second roller brush strips, wherein the first roller brush strips are disposed adjacent to the corresponding second roller brush strips.

[0015] The beneficial effects of this utility model are: by flipping the end cap to prevent hair from entering the bearing, the hair can be moved away from the end cap, avoiding hair entanglement, ensuring the reliable rotation of the roller brush body, and guaranteeing the working reliability of the vacuum cleaner accessories. 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 a perspective view of the present invention from a first-person perspective;

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

[0019] Figure 3 This is an exploded view of the present invention;

[0020] Figure 4 This is a first perspective view of the non-driving end cap component in this utility model;

[0021] Figure 5 This is a second perspective view of the non-driving end cap component in this utility model;

[0022] Figure 6 This is a first perspective view of the drive end cover component in this utility model;

[0023] Figure 7 This is a second perspective view of the drive end cover component in this utility model;

[0024] Figure 8 This is a cross-sectional view of the present invention;

[0025] Figure 9 for Figure 8 An enlarged view of part A. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] Example: Figure 1-9 As shown, this utility model discloses a first embodiment of an improved vacuum cleaner accessory, which includes: an accessory seat 100 having a roller brush chamber 120; a roller brush body 300 disposed in the roller brush chamber 120 and having a roller brush cavity 320; a drive assembly 400 for driving the roller brush body 300 to rotate; a drive end cover 500 disposed at the drive end of the roller brush body 300; a non-drive end cover 510 disposed at the non-drive end of the roller brush body 300; an accessory cover plate 200 located on the accessory seat 100; a connector 600 movably connected to the accessory seat 100 and located downstream of the roller brush chamber 120; a roller brush strip assembly 700 disposed on the roller brush body 300; and a bearing cover 800 cooperating with the non-drive end cover 510.

[0029] The accessory holder 100, which is designed to be placed on a surface to be cleaned and is reciprocating, is integrally injection molded and includes a suction port 124 that communicates with the rear end of the roller brush chamber 120 and is located upstream of the connector 600. The suction port 124 and the connector 600 are connected by a hose to deliver a dust-laden airflow.

[0030] The accessory cover 200 is used to cover the rear end of the accessory seat 100 and at least partially cover the connector 600, and is integrally injection molded.

[0031] The central axis of the roller brush body 300 is parallel to the surface to be cleaned. It includes an inner roller brush body cavity 320 that extends axially, a plurality of roller brush body grooves 340 that are located on the outer side and are spirally arranged along the axial direction and circumferentially spaced, and a plurality of roller brush strip receiving grooves located between two adjacent roller brush body grooves 340. There are two sets of roller brush strip receiving grooves.

[0032] The drive assembly 400 is a DC motor, and its output is connected to one end of the transmission assembly 440, while the other end of the transmission assembly 440 is connected to the drive end of the roller brush body 300.

[0033] The drive end cap 500 includes a drive end cap base 520, a drive end cap hole 540 located on one side of the drive end cap base 520, a plurality of drive claws 544 disposed in the end cap hole 540, and a drive end cap extension 560 extending from one end of the drive end cap base 520 along its axial direction and capable of extending into the brush body cavity 320. The drive end cap base 520 is provided with a drive end cap annular wall 524 surrounding the drive end cap extension 560, a drive end cap flange 526 located outside the drive end cap annular wall 524, and a plurality of drive end cap retaining arms 528 located inside the drive end cap annular wall 524 and engaged in the corresponding brush body groove 340. The drive end cap extension 560 is generally hollow cylindrical in shape, and inside it are a drive extension cavity 564, a drive end cap shaft hole 566 that is connected to the drive extension cavity 564 at one end and to the end cap hole 540 at the other end, and a plurality of drive end cap ribs 568 that are located on the outer surface and are circumferentially spaced.

[0034] The non-drive end cap 510 includes a non-drive end cap base 530, a non-drive end cap hole 550 located on one side of the non-drive end cap base 530, and a non-drive end cap extension 570 extending from one end of the non-drive end cap base 530 along its axial direction and capable of extending into the brush body cavity 320. The non-drive end cap extension 570 contains a non-drive extension cavity 574, a plurality of non-drive end cap ribs 578 located on its outer surface and circumferentially spaced, and a non-drive shaft-like portion 590 located within the non-drive extension cavity 574 and having a non-drive shaft hole 594. The non-drive shaft hole 594 communicates with the non-drive end cap hole 550.

[0035] The bearing cover 800 includes a bearing cover groove 804, a bearing cover shaft hole 808 located at the center of the bearing cover groove 804, a connecting shaft 820 located within the bearing cover shaft hole 808, a bearing 840 sleeved on the connecting shaft 820, and a bearing cover sidewall 860 surrounding the bearing cover groove 804; wherein the non-driving end cover base 530 has a non-driving end cover flange 536 located inside the bearing cover sidewall 860. The extension direction of the non-driving end cover flange 536 is away from the non-driving bearing cover groove 804. There is an axial clearance between the non-driving end cover base 530 and the bearing cover 800 in the axial direction of the brush body 300, and there is a radial clearance between the non-driving end cover flange 536 and the bearing cover sidewall 860, wherein the radial clearance is smaller than the axial clearance. The non-drive end cap base 530 is provided with a non-drive end cap annular wall 534 surrounding the non-drive end cap extension 570 and located inside the non-drive end cap flange 536, and a plurality of non-drive end cap retaining arms 538 located inside the non-drive end cap annular wall 534. The central axes of the bearing cover shaft hole 808, the drive end cap shaft hole 566, and the non-drive shaft hole 594 are on the same straight line.

[0036] The brush bar assembly 700 includes a plurality of first brush bars 720 and a plurality of second brush bars 740, wherein the first brush bars 720 and the corresponding second brush bars 740 are arranged adjacently to form a group, preferably three groups in this embodiment. The bottoms of the first brush bars 720 and the second brush bars 740 are respectively received and fixed by corresponding brush bar receiving grooves.

[0037] The roller brush body 300 is provided with a plurality of roller brush body grooves 340 in the circumferential direction to accommodate the corresponding non-drive end cover arm 538, wherein a set of roller brush strips is provided between two adjacent roller brush body grooves 340.

[0038] This utility model discloses a second embodiment of an improved vacuum cleaner accessory, which includes an accessory seat 100 having a roller brush chamber 120, an accessory cover plate 200 located on the accessory seat 100, a roller brush body 300 disposed in the roller brush chamber 120 and having a roller brush body cavity 320, a drive assembly 400 for driving the roller brush body 300 to rotate, a drive end cover 500 disposed at one end of the roller brush body 300, a connector 600 connected to the roller brush chamber 120, a roller brush strip assembly 700 disposed on the roller brush body 300, and a bearing cover 800 cooperating with the drive end cover 500.

[0039] The drive end cap 500 includes a drive end cap base 520 and a drive end cap extension 560 extending from one end of the drive end cap base 520 along its axial direction and capable of extending into the brush body cavity 320; wherein the bearing cap 800 includes a bearing cap groove 804, a bearing cap shaft hole 808 located at the center of the bearing cap groove 804, a connecting shaft 820 located in the bearing cap shaft hole 808, a bearing 840 sleeved on the connecting shaft 820, and a bearing cap sidewall 860 surrounding the bearing cap groove 804; wherein the drive end cap base 520 has a drive end cap flange 526 located inside the bearing cap sidewall 860. The extension direction of the drive end cap flange 526 is away from the bearing cap groove 804, there is an axial gap between the drive end cap base 520 and the bearing cap 800 in the axial direction of the brush body 300, and there is a radial gap between the drive end cap flange 526 and the bearing cap sidewall 860, wherein the radial gap is smaller than the axial gap. The base 520 of the drive end cover is provided with a drive end cover annular wall 524 surrounding the drive end cover extension 560 and located inside the drive end cover flange 526, and a plurality of drive end cover retaining arms 528 located inside the drive end cover annular wall 524.

[0040] The brush strip assembly 700 includes a plurality of first brush strips 720 and a plurality of second brush strips 740, wherein the first brush strips 720 and the corresponding second brush strips 740 are arranged adjacent to each other. The first brush strips 720 and the second brush strips 740 are made of different materials, and in this embodiment, there are three of them.

[0041] During operation, under the high-speed rotation of the drive assembly 400, the first roller brush strip 720 and the second roller brush strip 740 of the roller brush body 300 rotate and pat the ground to be cleaned to generate a dust-laden airflow. The dust-laden airflow enters the roller brush chamber 120, enters the hose through the suction port 124 on the rear side of the roller brush chamber 120, and then flows towards the dust cup of the vacuum cleaner through the connector 600. Finally, it is filtered and discharged to the outside. Since the extension direction of the drive end cover flange 526 and the non-drive end cover flange 536 is towards the middle of the roller brush body 300 and away from the groove where the bearing is located, hair is not easy to enter the bearing.

[0042] The advantages of this invention are: by flipping the end cap, hair is prevented from entering the bearing, and at the same time, the hair can be moved away from the end cap, avoiding hair entanglement, ensuring the reliable rotation of the roller brush body, and guaranteeing the working reliability of the vacuum cleaner accessory.

[0043] 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. An improved dust cleaner attachment characterized by It includes: The attachment seat (100) has a rolling brush chamber (120), the rolling brush body (300) is arranged in the rolling brush chamber (120) and has a rolling brush body cavity (320), the driving assembly (400) is used for driving the rolling brush body (300) to rotate, the non-driving end cover piece (510) is arranged at one end of the rolling brush body (300), and the bearing cover piece (800) is matched with the non-driving end cover piece (510), wherein the non-driving end cover piece (510) comprises a non-driving end cover base (530) and a non-driving end cover extension (570) extending along the axial direction of the non-driving end cover base (530) and capable of extending into the rolling brush body cavity (320); wherein the non-driving end cover base (530) has a non-driving end cover turnup (536) for preventing hair from entering the bearing cover piece (800).

2. The improved dust cleaner accessory according to claim 1, wherein: The bearing cover piece (800) comprises a bearing cover groove (804), a connecting shaft (820) located in the center of the bearing cover groove (804), a bearing (840) sleeved on the connecting shaft (820), and a bearing cover side wall (860) arranged around the bearing cover groove (804); wherein the extension direction of the non-driving end cover turnup (536) is away from the bearing cover groove (804).

3. The improved dust cleaner accessory according to claim 2, wherein: The non-driving end cover base (530) has an axial gap between the axial direction of the rolling brush body (300) and the bearing cover piece (800), and a radial gap is formed between the non-driving end cover turnup (536) and the bearing cover side wall (860), wherein the radial gap is smaller than the axial gap.

4. The improved dust cleaner accessory according to claim 3, wherein: The non-driving end cover base (530) is provided with a non-driving end cover annular wall (534) arranged around the non-driving end cover extension (570) and located inside the non-driving end cover turnup (536), and a plurality of non-driving end cover clamping arms (538) located inside the non-driving end cover annular wall (534).

5. The improved dust cleaner accessory according to claim 4, wherein It also includes an accessory cover plate (200) arranged on the attachment seat (100), a connector (600) movably connected with the attachment seat (100) and located downstream of the rolling brush chamber (120), and a rolling brush strip assembly (700) arranged on the rolling brush body (300), wherein the rolling brush strip assembly (700) comprises a plurality of first rolling brush strips (720) and a plurality of second rolling brush strips (740), and the first rolling brush strip (720) is arranged adjacent to the corresponding second rolling brush strip (740).

6. The improved dust cleaner accessory according to claim 5, wherein: The rolling brush body (300) is circumferentially provided with a plurality of rolling brush body grooves (340) for accommodating the corresponding non-driving end cover clamping arm (538), and a first rolling brush strip (720) or a second rolling brush strip (740) is arranged between two adjacent rolling brush body grooves.

7. An improved dust cleaner attachment characterized by It includes: The accessory seat (100) has a rolling brush chamber (120), the rolling brush body (300) is arranged in the rolling brush chamber (120) and has a rolling brush body cavity (320), the driving assembly (400) is used for driving the rolling brush body (300) to rotate, the driving end cover piece (500) is arranged at one end of the rolling brush body (300), and the bearing cover piece (800) cooperates with the driving end cover piece (500), wherein the driving end cover piece (500) comprises a driving end cover base (520) and a driving end cover extension (560) extending along the axial direction of the driving end cover base (520) and capable of extending into the rolling brush body cavity (320); wherein the driving end cover base (520) has a driving end cover turnup (526) for preventing hair from entering the bearing cover piece (800).

8. The improved dust cleaner accessory according to claim 7, wherein: The bearing cover piece (800) comprises a bearing cover groove (804), a connecting shaft (820) arranged at the center of the bearing cover groove (804), a bearing (840) sleeved on the connecting shaft (820), and a bearing cover side wall (860) arranged around the bearing cover groove (804); the driving end cover turnup (526) extends away from the bearing cover groove (804), there is an axial gap between the driving end cover base (520) and the bearing cover piece (800) in the axial direction of the rolling brush body (300), and there is a radial gap between the driving end cover turnup (526) and the bearing cover side wall (860), wherein the radial gap is smaller than the axial gap.

9. The improved dust cleaner accessory according to claim 8, wherein: The driving end cover base (520) is provided with a driving end cover annular wall (524) arranged around the driving end cover extension (560) and inside the driving end cover turnup (526), and a plurality of driving end cover clamping arms (528) arranged inside the driving end cover annular wall (524).

10. The improved dust cleaner accessory according to claim 9, wherein The accessory cover plate (200) is arranged on the accessory seat (100), the connector (600) is connected with the rolling brush chamber (120), and the rolling brush strip assembly (700) is arranged on the rolling brush body (300), wherein the rolling brush strip assembly (700) comprises a plurality of first rolling brush strips (720) and a plurality of second rolling brush strips (740), and the first rolling brush strip (720) is arranged adjacent to the corresponding second rolling brush strip (740).

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