Rolling brush assembly structure and cleaning device thereof

Abstract

The utility model discloses a rolling brush assembly structure and a cleaning device thereof, the rolling brush assembly structure comprises a bottom shell and a rolling brush, the bottom shell is provided with a rotating shaft, and one end of the rolling brush is detachably connected with the rotating shaft in a pluggable mode and synchronously rotates with the rotating shaft; the rolling brush assembling structure further comprises a bearing and a buckling arm. A positioning shaft is arranged at the other end of the rolling brush and sleeved with the bearing. One end of the buckling arm is hinged to the bottom shell, the arm body of the buckling arm is provided with a first arc-shaped groove matched with the bearing, and the other end of the buckling arm is provided with a first buckling part; the bottom shell is provided with a second arc-shaped groove matched with the bearing and a second buckling part matched with the first buckling part; the first buckling part and the second buckling part are detachably connected in a buckling mode, and the bearing is clamped between the bottom face of the first arc-shaped groove and the bottom face of the second arc-shaped groove in an embracing mode. According to the utility model, the rolling brush can be conveniently and quickly assembled and disassembled.

Description

Technical Field

[0001] The utility model relates to a roller brush cleaning device. Background Art

[0002] The roller brush cleaning device mainly includes a bottom shell, a dust box, a roller brush, a drive motor, a transmission mechanism and other components. The roller brush is rotatably mounted on the bottom shell. When working, the drive motor drives the roller brush to rotate through the transmission mechanism, and the garbage on the ground can be swept into the dust box.

[0003] In the existing roller brush cleaning device, when disassembling the roller brush, it is usually necessary to manually tighten the screws before disassembling it, so disassembly and assembly are inconvenient. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a roller brush assembly structure and a cleaning device thereof, which are convenient for assembling and disassembling the roller brush conveniently and quickly and have a simple structure.

[0005] A roller brush assembly structure of an embodiment of the utility model includes a bottom shell and a roller brush, the bottom shell is provided with a rotating shaft, one end of the roller brush is detachably connected to the rotating shaft by plugging and unplugging, and rotates synchronously with the rotating shaft; the roller brush assembly structure also includes a bearing and a snap arm; the other end of the roller brush is provided with a positioning shaft, and the bearing is sleeved on the positioning shaft; one end of the snap arm is hinged to the bottom shell, the arm body of the snap arm is provided with a first arc groove matching with the bearing, and the other end of the snap arm is provided with a first snap portion; the bottom shell is provided with a second arc groove matching with the bearing and a second snap portion matching with the first snap portion; the first snap portion and the second snap portion are detachably snap-connected, and the bearing is clamped between the bottom surface of the first arc groove and the bottom surface of the second arc groove.

[0006] The embodiment of the utility model further provides a cleaning device, which includes the aforementioned roller brush assembly structure.

[0007] The utility model has at least the following advantages:

[0008] One end of the roller brush of the utility model embodiment is plug-in-pick-matched with the rotating shaft of the bottom shell, and the other end is detachably connected to the bottom shell by a buckle arm to be fixed. When installing or removing the roller brush, it only needs to press down or open the buckle arm, which is very convenient. Since no screws are required, the structure is also simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 An exploded schematic diagram of a roller brush assembly structure according to an embodiment of the utility model is shown.

[0010] Figure 2 A schematic assembly diagram of a roller brush assembly structure according to an embodiment of the utility model is shown, wherein the snap arm is in an open state.

[0011] Figure 3 The figure shows an assembly diagram of a roller brush assembly structure according to an embodiment of the utility model, wherein the snap-in arm is in a snap-in state. DETAILED DESCRIPTION

[0012] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] Please refer to Figures 1 to 3 The roller brush assembly structure of the embodiment of the utility model comprises a bottom shell 1, a roller brush 2, a bearing 3 and a buckle arm 4. Figures 1 to 3 Two roller brushes 2 of a dual roller brush cleaning device are shown, one of which is the front roller brush of the cleaning device, and the other is the rear roller brush of the cleaning device. The assembly structures of the two roller brushes are exactly the same, and only the assembly structure of one of the roller brushes is further described below.

[0014] The bottom shell 1 is provided with a rotating shaft 11 , one end of the roller brush 2 is detachably plugged and connected to the rotating shaft 11 and rotates synchronously with the rotating shaft 1 , and the other end of the roller brush 2 is provided with a positioning shaft 23 , and the bearing 3 is sleeved on the positioning shaft 23 .

[0015] In this embodiment, the top of the rotating shaft 11 is provided with an anti-rotation plug 111; the end surface of one end of the roller brush 2 is provided with an anti-rotation hole (not shown in the figure) that matches the anti-rotation plug, and the anti-rotation plug 111 is inserted into the anti-rotation hole, and the two cannot rotate relative to each other. In some specific embodiments, the rotating shaft 11 is a hexagonal shaft. The shape of the anti-rotation plug and the anti-rotation hole are both regular hexagons.

[0016] One end of the buckle arm 4 is hinged to the bottom shell 1 , the arm body of the buckle arm 4 is provided with a first arc groove 41 matched with the bearing 3 , and the other end of the buckle arm is provided with a first buckle portion 43 .

[0017] The bottom shell 1 is provided with a second arc groove 12 matched with the bearing 3 and a second buckle portion 14 matched with the first buckle portion 43. The first buckle portion 43 and the second buckle portion 14 are detachably buckled and connected, and the bearing 3 is clamped between the bottom surface of the first arc groove 41 and the bottom surface of the second arc groove 12.

[0018] In this embodiment, the positioning shaft 23 is interference fit with the inner ring of the bearing 3; the outer ring of the bearing 3 is interference fit with the bottom surface of the first arc groove 41 and the bottom surface of the second arc groove 12 respectively. A concave cavity 10 is provided on the bottom surface of the bottom shell 1, and the roller brush 2 is rotatably arranged in the concave cavity 10. The rotating shaft 11 is arranged on the inner surface of the end wall of one end of the concave cavity 10, and the second arc groove 12 is provided on the bottom surface of the end wall of the other end of the concave cavity 10.

[0019] In this embodiment, the first buckle portion 43 is a hook, and the hook 43 includes a hook body 431 and a hook head 432. One end of the hook body 431 is connected to the bottom surface of the arm body of the buckle arm 4, and the hook head 432 is connected to the other end of the hook body 431. The second buckle portion 14 includes a first convex rib 141 protruding from the outer surface of the bottom shell 1, and the hook head 432 buckles the bottom surface of the first convex rib 141.

[0020] Preferably, a protrusion 143 extending toward the hook is provided at the bottom of the first rib 141 , the top of the protrusion 143 abuts against the hook body 431 , and the hook head 432 buckles the bottom surface of the protrusion 143 .

[0021] In this embodiment, the outer surface of the bottom shell 1 is further provided with a second convex rib 152 , and the second convex rib 152 is spaced apart from and opposite to the first convex rib 141 ; the hook body 431 is located between the first convex rib 141 and the second convex rib 152 .

[0022] During assembly, first insert the anti-rotation hole at one end of the roller brush 2 with the bearing 3 installed into the anti-rotation plug part 111 of the rotating shaft 11, then press the bearing 3 into the second arc groove 12, and then press down the snap arm 4. When a snap sound is heard, it means that the hook head 432 has buckled the bottom surface of the protrusion 143 of the first rib 141, and the roller brush is installed in place.

[0023] When disassembling, first open the buckle arm 4, take out one end of the roller brush 2 with the bearing 3 installed, and then take the roller brush 2 out from the rotating shaft 11 at an angle, in the opposite direction when it is installed. After taking it out, the roller brush 2 can be cleaned or replaced.

[0024] In a specific application, the roller brush assembly structure of this embodiment is suitable for an outdoor cleaning device, such as an outdoor electric sweeper as a garden tool. When working, the roller brush 2 rotates under the drive of the motor, driving the inner ring of the bearing 3 to rotate synchronously, and the outer ring of the bearing 3 remains stationary.

[0025] One end of the roller brush of the utility model embodiment is plugged into and pulled out of the rotating shaft of the bottom shell through the anti-rotation hole, and the other end is detachably connected to the bottom shell through the buckle arm to be fixed. When installing or removing the roller brush, it only needs to press down or open the buckle arm, which is very convenient. Since no screws are required, the structure is also simpler.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A roller brush assembly structure, comprising a bottom shell and a roller brush, wherein the bottom shell is provided with a rotating shaft, one end of the roller brush is detachably plugged and connected to the rotating shaft and rotates synchronously with the rotating shaft; characterized in that: The roller brush assembly structure also includes a bearing and a buckle arm; The other end of the roller brush is provided with a positioning shaft, and the bearing sleeve is arranged on the positioning shaft; One end of the buckle arm is hinged to the bottom shell, the arm body of the buckle arm is provided with a first arc groove matched with the bearing, and the other end of the buckle arm is provided with a first buckle portion; The bottom shell is provided with a second arc groove matched with the bearing and a second buckle portion matched with the first buckle portion; The first buckle portion and the second buckle portion are detachably buckled and connected, and the bearing is clamped between the bottom surface of the first arc groove and the bottom surface of the second arc groove.

2. The roller brush assembly structure according to claim 1, characterized in that: The first buckle part is a hook, and the hook includes a hook body and a hook head. One end of the hook body is connected to the bottom surface of the arm body of the buckle arm, and the hook head is connected to the other end of the hook body.

3. The roller brush assembly structure according to claim 2, characterized in that: The second buckle portion includes a first convex rib protruding from the outer surface of the bottom shell, and the hook head buckles the bottom surface of the first convex rib.

4. The roller brush assembly structure according to claim 3, characterized in that: A protrusion extending toward the side close to the hook is provided at the bottom of the first convex rib, the top end of the protrusion abuts against the hook body, and the hook head buckles the bottom surface of the protrusion.

5. The roller brush assembly structure according to claim 3 or 4, characterized in that: The outer surface of the bottom shell is provided with a second convex rib, and the second convex rib is spaced apart and opposite to the first convex rib; The hook body is located between the first convex rib and the second convex rib.

6. The roller brush assembly structure according to claim 1, characterized in that: The positioning shaft and the inner ring of the bearing are interference fit; The outer ring of the bearing is interference fit with the bottom surface of the first arc groove and the bottom surface of the second arc groove respectively.

7. The roller brush assembly structure according to claim 1, characterized in that: An anti-rotation plug portion is provided at the top end of the rotating shaft; an anti-rotation hole matching with the anti-rotation plug portion is provided at the end surface of one end of the rolling brush, and the anti-rotation plug portion is inserted into the anti-rotation hole.

8. The roller brush assembly structure according to claim 1, characterized in that: The bottom surface of the bottom shell is provided with a concave cavity, and the roller brush is rotatably arranged in the concave cavity; The rotating shaft is arranged on the inner surface of the end wall of one end of the concave cavity, and the second arc groove is opened on the bottom surface of the end wall of the other end of the concave cavity.

9. A cleaning device, characterized in that: The roller brush assembly structure comprises the roller brush assembly structure as described in any one of claims 1 to 8.

10. The cleaning device according to claim 9, characterized in that The cleaning device is an electric sweeper.

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