Composite cleaning disc brush

Abstract

The utility model discloses a kind of composite cleaning disc brush, including disc body and the drive connecting portion being set to the middle part of disc body;The first end surface of disc body is provided with first brush head, and second end surface is provided with second brush head;First brush head and second brush head are coaxially driven by drive connecting portion.This kind of composite cleaning disc brush obtained by the utility model has the following advantages: the second end surface of disc body is provided with second brush head for regular cleaning, and the first end surface is provided with first brush head specially used for dead angle cleaning;First brush head and second brush head are coaxially driven by drive connecting portion being set to the middle part of disc body.When disc brush works, first brush head can be ahead of disc body and contact the vertical gap of corner, and through its rotary motion, furniture leg periphery, corner root and other narrow dead angle areas that traditional disc brush cannot reach are effectively scraped, so that the technical problem of cleaning blind area is fundamentally solved in structure.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a composite cleaning disc brush. Background Technology

[0002] With the improvement of people's living standards, intelligent cleaning equipment such as robotic vacuum cleaners and floor scrubbers have been widely used in floor cleaning in modern homes and commercial spaces. The cleaning function of these devices mainly relies on high-speed rotating disc brushes (or roller brushes, flat brushes) to achieve cleaning. The bristles or scrapers on the disc brushes rub against the floor, thereby peeling off and removing stains.

[0003] Currently, most mainstream cleaning disc brushes on the market adopt a single bristle surface structure, meaning the bristles are only located on the circumference or a single end face of the brush. This traditional structure performs well when cleaning open floors, but it has significant drawbacks when cleaning corners along walls, furniture legs, baseboard gaps, and various narrow, hard-to-reach areas. Due to the physical obstruction and size limitations of the brush body and its drive mechanism (such as the motor housing), the bristles cannot effectively reach into these narrow spaces, making these areas cleaning blind spots and severely affecting the overall cleaning effect and user experience.

[0004] To improve the problem of cleaning hard-to-reach corners, existing technologies typically employ two main solutions: one is to add side brushes or edge brushes to the edge of the device, which rotate to throw dust from the corners for the main brush to clean. However, this solution has a limited range of action and low cleaning efficiency, and is not effective against stubborn stains close to the corners. The other solution is to optimize the device's algorithm to control its movement path, making it run as close to the edge as possible. However, this method is limited by the physical size of the device, cannot fundamentally solve the structural obstruction problem, and has complex path planning, which reduces cleaning efficiency.

[0005] Therefore, there is a lack of a disc brush component in the existing technology that can fundamentally solve the problem of cleaning dead corners from the structural design. There is an urgent need for a new disc brush structure that can effectively overcome physical limitations and achieve efficient and direct cleaning of dead corners such as walls and corners without changing the overall movement path and complex algorithms. Utility Model Content

[0006] One objective of this application is to provide a composite cleaning disc brush to solve the problems mentioned in the background art.

[0007] The technical solution adopted in this application is as follows: it includes a disc-shaped body and a drive connection part disposed in the middle of the disc-shaped body; a first brush head is disposed on the first end face of the disc-shaped body and a second brush head is disposed on the second end face; the first brush head and the second brush head are coaxially driven through the drive connection part.

[0008] Furthermore, this application also proposes that the first brush head is composed of a plurality of first cleaning units arranged at intervals along the circumference of the disc-shaped body.

[0009] Furthermore, this application also proposes that the first cleaning unit is detachably connected to the disc-shaped body.

[0010] Furthermore, this application also proposes that the first cleaning unit includes an installation part and a bristle part disposed on the installation part.

[0011] Furthermore, this application also proposes that the cross-sectional shape of the mounting part is polygonal.

[0012] Furthermore, this application also proposes that the bristle part and the mounting part be detachably connected.

[0013] Furthermore, this application also proposes that the second brush head has a continuous annular bristle structure.

[0014] Furthermore, this application also proposes that the second brush head be detachably connected to the disc-shaped body.

[0015] Furthermore, this application also proposes that the bristle extension direction of the first brush head is parallel to the bristle extension direction of the second brush head.

[0016] Furthermore, this application also proposes that the bristle density of the first brush head is less than the bristle density of the second brush head.

[0017] Compared with existing technologies, the advantages of this application are as follows: a second brush head for regular cleaning is provided on the second end face of the disc-shaped body, and a first brush head specifically for cleaning dead corners is provided on the first end face; the first brush head and the second brush head are coaxially driven through a drive connection part located in the middle of the disc-shaped body. When the disc brush is working, the first brush head can probe into and contact the vertical gaps in the corners of the wall before the disc-shaped body, and effectively scrape narrow dead corner areas such as around furniture legs and at the base of wall corners that cannot be reached by traditional disc brushes through its rotational motion, thereby fundamentally solving the technical problem of cleaning blind spots from a structural perspective. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the overall bottom of this application; Figure 3 This is a top view of this application; Figure 4 This is an exploded view of this application.

[0019] In the figure: 1. Disc-shaped body; 2. Drive connection part; 3. First brush head; 31. First cleaning unit; 311. Mounting part; 312. Bristle part; 4. Second brush head. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: This embodiment, as the core implementation of this utility model, will describe in detail the detachable connection structure claimed in the claims. For example... Figures 1 to 4 As shown, this composite cleaning disc brush mainly includes a disc-shaped body 1, a drive connection part 2 disposed in the middle of the disc-shaped body 1, a first brush head 3 disposed on the first end face of the disc-shaped body 1, and a second brush head 4 disposed on the second end face of the disc-shaped body 1. The first end face and the second end face are arranged back to back.

[0022] The disc-shaped body 1 is integrally molded from high-strength engineering plastic using an injection molding process. The material selection ensures excellent wear resistance and impact resistance, fully meeting the complex mechanical strength and durability requirements during cleaning. At the geometric center of the disc-shaped body 1, a mounting hole is precisely formed to mate with the drive connection part 2. The inner wall of this mounting hole is machined with an internal spline structure, specifically designed for circumferential fixation with the drive connection part 2 and for transmitting torque.

[0023] The drive connection part 2, as the core transmission component, includes a connecting shaft and a flange. One end of the connecting shaft is connected to the output shaft of the cleaning equipment drive motor, while the other end is securely fixed to the disc-shaped body 1 via the flange. To achieve efficient power transmission, an external spline tooth profile is machined on the outer surface of the connecting shaft, precisely matching the spline inside the mounting hole of the disc-shaped body 1. During assembly, circumferential transmission is achieved through the spline engagement, effectively preventing relative slippage under high-speed rotation conditions. Furthermore, the contact end faces of the flange and the disc-shaped body 1 are fastened together by multiple screws evenly distributed along the circumference. This design ensures that the drive connection part 2 can smoothly and reliably drive the entire disc-shaped body 1 to rotate, thereby guaranteeing the stability of the cleaning operation process.

[0024] A first brush head 3 is provided on the first end face of the disc-shaped body 1 (this end face is specifically used for cleaning dead corners). This first brush head 3 is composed of multiple first cleaning units 31, which are arranged at uniform intervals along the circumference of the disc-shaped body 1 to form a highly efficient cleaning array. Each first cleaning unit 31 further includes a mounting part 311 and a bristle part 312 disposed on the mounting part 311. The core innovation of this embodiment is that the first cleaning unit 31 and the disc-shaped body 1 are detachably connected. Specifically, the mounting part 311 is manufactured using an independent process, and its cross-section is designed as a polygon (e.g., rectangular). A matching polygonal mounting groove is machined on the first end face of the disc-shaped body 1. The mounting part 311 is embedded into the mounting groove by an interference fit, realizing a reliable detachable connection function. This solution ensures connection reliability and torsional strength while providing great convenience for subsequent independent replacement and maintenance of individual cleaning units. The bristle part 312 is composed of a large number of high-performance wear-resistant bristles. Another key innovation of this embodiment is that the bristle part 312 and the mounting part 311 are also detachably connected. Specifically, the bristle part 312 is detachably connected to the mounting part 311 via a snap-fit ​​connection or screw fastening. This design allows the bristle part 312 to be quickly replaced as an independent module, thereby significantly reducing the overall maintenance cost caused by localized wear and improving the product's economy and practicality.

[0025] A second brush head 4 is located on the second end face of the disc-shaped body 1 (this end face is used for routine cleaning). It adopts an integrated continuous annular bristle structure coaxial with the disc-shaped body 1, with the overall design being a concentric ring. The bristles are made of a highly elastic and wear-resistant special material and are distributed at a high density, specifically designed for deep cleaning of large open areas. Another core innovation of this embodiment is that the second brush head 4 is also detachably connected to the disc-shaped body 1. In this embodiment, this detachable connection is achieved in the following ways: a snap-fit ​​connection can be used, where an elastic snap is provided on the second end face of the disc-shaped body 1, and a corresponding snap-fit ​​hole is provided at the base of the second brush head 4, allowing for quick assembly and disassembly through the snap-fit ​​and release; or a magnetic adsorption connection can be used, where permanent magnets are embedded in the base of the second brush head 4 and the second end face of the disc-shaped body 1, respectively, achieving connection through magnetic adsorption. This type of detachable connection gives the product greater ease of maintenance and flexibility of use. Users can replace the second brush head 4 independently based on the wear of the bristles, greatly reducing long-term usage costs. At the same time, users can also quickly replace the second brush head 4 with different materials and hardness according to different cleaning scenarios (such as ordinary cleaning, deep cleaning, polishing, etc.), which greatly expands the application range of the product and the user experience value.

[0026] A key design feature of this invention is that the bristle extension directions of the first brush head 3 and the second brush head 4 are set to be parallel to each other. This carefully designed, unified bristle direction is the cornerstone for achieving efficient and coordinated cleaning by the two brush heads. From a mechanical perspective, this parallel and perpendicular layout ensures that the cleaning force generated by the two brush heads is in the same direction and perpendicular to the cleaning surface when the disc brush rotates, forming a stable and effective contact pressure, thereby maximizing cleaning efficiency and avoiding ineffective force dissipation. In addition, the bristle density of the first brush head 3 is intentionally designed to be lower than that of the second brush head 4. This differentiated density strategy gives them different cleaning characteristics: the relatively lower bristle density of the first brush head 3 makes its bristles more flexible, allowing it to more flexibly penetrate and conform to irregular surfaces in narrow corners, furniture legs, and other hard-to-reach areas, achieving a thorough cleaning effect; while the higher bristle density of the second brush head 4 allows it to form dense scraping contact points when cleaning open surfaces, thus possessing stronger stain removal ability and dust holding capacity, ensuring efficient and thorough cleaning of large areas. This targeted design based on different cleaning scenarios enables a single disc brush component to simultaneously possess excellent cleaning capabilities for hard-to-reach areas and efficient cleaning capabilities for open areas, fundamentally solving the technical problem that traditional disc brushes cannot handle both simultaneously.

[0027] Example 2: This embodiment provides another specific implementation of the detachable connection. The overall structure of its core disc brush is the same as that of Embodiment 1, the main difference being that the mounting part 311 of the first cleaning unit 31 and the detachable connection method between the second brush head 4 and the disc-shaped body 1 adopt different mechanical connection structures.

[0028] For the first cleaning unit 31, the cross-section of its mounting portion 311 is polygonal (e.g., square). A matching polygonal mounting groove is machined on the first end face of the disc-shaped body 1. The mounting portion 311 and the mounting groove are detachably fixed by bolt connection. Specifically, a threaded hole is machined at the center of the mounting portion 311, and a corresponding smooth hole is opened on the disc-shaped body 1. During assembly, a bolt is passed through the smooth hole from the back of the disc-shaped body 1 and screwed into the threaded hole; tightening achieves a secure connection. The bolt connection method provides higher connection strength and reliability, and is particularly suitable for high-load or high-vibration operating environments.

[0029] The second brush head 4 is detachable from the disc-shaped body 1 via a threaded connection. Specifically, an internal thread is molded on the inner side of the base of the second brush head 4, and a matching external thread is machined on the second end face of the disc-shaped body 1. During assembly, the second brush head 4 can be screwed into and fixed to the disc-shaped body 1 by rotating it. The threaded connection method is simple in structure, reliable in connection, and can withstand large axial forces.

[0030] This embodiment fully demonstrates the flexibility and versatility of this utility model in specific implementations by providing two detachable connection schemes: bolt connection (for the first cleaning unit) and threaded connection (for the second brush head).

[0031] Example 3: As an alternative, the concept of this utility model can also be realized through other connection methods. For example, the mounting part 311 of the first cleaning unit 31 can also be integrally injection molded from rigid plastic and the disc-shaped body 1. This integrated structure makes the mounting part 311 and the disc-shaped body 1 form a seamless whole, with excellent structural strength and integrity. The bristle part 312 can also be directly and firmly implanted and fixed to the mounting part 311 through an advanced bristle implantation process, forming a stable and reliable integrated structure.

[0032] Similarly, the base of the second brush head 4 can also be permanently connected to the second end face of the disc-shaped body 1 through a fixed installation method (including but not limited to adhesive bonding, hot melt welding or one-piece injection molding). This method has a series of outstanding advantages such as high connection strength, excellent structural stability, excellent dynamic balance performance and low operating noise.

[0033] While these alternatives differ in maintainability, they can all achieve the core double-sided cleaning function described in this invention and should be considered to be covered within the overall concept scope of this invention.

Claims

1. A composite cleaning disc brush, comprising a disc-shaped body (1) and a drive connection portion (2) disposed in the middle of the disc-shaped body (1); characterized in that: The disc-shaped body (1) is provided with a first brush head (3) on its first end face and a second brush head (4) on its second end face; the first brush head (3) and the second brush head (4) are coaxially driven by the drive connection part (2).

2. The composite cleaning disc brush according to claim 1, characterized in that: The first brush head (3) is composed of a plurality of first cleaning units (31) arranged circumferentially along the disc-shaped body (1).

3. The composite cleaning disc brush according to claim 2, characterized in that: The first cleaning unit (31) is detachably connected to the disc-shaped body (1).

4. A composite cleaning disc brush according to claim 2, characterized in that: The first cleaning unit (31) includes a mounting part (311) and a bristle part (312) disposed on the mounting part (311).

5. A composite cleaning disc brush according to claim 4, characterized in that: The cross-sectional shape of the mounting part (311) is polygonal.

6. A composite cleaning disc brush according to claim 4, characterized in that: The bristle portion (312) is detachably connected to the mounting portion (311).

7. A composite cleaning disc brush according to claim 1, characterized in that: The second brush head (4) has a continuous annular bristle structure.

8. A composite cleaning disc brush according to claim 7, characterized in that: The second brush head (4) is detachably connected to the disc-shaped body (1).

9. A composite cleaning disc brush according to any one of claims 1 to 8, characterized in that: The bristle extension direction of the first brush head (3) is parallel to the bristle extension direction of the second brush head (4).

10. A composite cleaning disc brush according to any one of claims 1 to 8, characterized in that: The bristle density of the first brush head (3) is less than that of the second brush head (4).

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