Cleaning brush

Abstract

The present application relates to a kind of cleaning brushes, comprising: fixed seat, installation chamber is defined on it;Drive motor, be in installation chamber;Brush body, for long strip-shaped elastic brush, can be driven by drive motor rotation;Rotary frame, can be driven by the output shaft of drive motor rotation, brush body is connected on rotary frame;Winding reel, cover drive motor outside main body, and can rotate around the axis of drive motor main body;Pull rope, around the winding groove of winding reel, two ends of pull rope are connected with the length direction of two end portions of brush body respectively.Cleaning brush is matched with pull rope through rotatable winding reel, realizes the active control of brush body form, so that long strip-shaped elastic brush can be flexibly switched between flat state and curved arc state.User does not need to purchase multiple brushes, only with single brush body can be adapted to different cleaning scenes such as flat surface and arc bowl wall, significantly reduces the purchase and storage cost, improves the use convenience and continuity.

Description

Technical Field

[0001] This invention relates to the field of kitchen cleaning tools, and more particularly to a cleaning brush. Background Technology

[0002] In current technology, cleaning brushes are commonly used to scrub kitchen countertops, sinks, and tableware. Traditional cleaning brushes are mostly used for manual back-and-forth wiping, although there are also electric cleaning brushes. Regardless of whether the cleaning brush is manual or electric, the areas to be cleaned, such as kitchen countertops and sinks, are mostly flat or near-flat surfaces, requiring flat brushes. For tableware, such as bowls with curved walls, a curved strip brush is needed to better fit the inner wall of the bowl.

[0003] In summary, the shortcomings of traditional cleaning brushes lie in their limited functionality and inability to adapt to diverse kitchen cleaning scenarios. For flat countertops and curved bowl walls, users need to purchase separate flat and curved brushes, increasing costs and creating redundant storage and resource waste. In practice, frequent brush replacements also affect cleaning efficiency and consistency. Furthermore, most brushes lack active drive capabilities, relying on manual operation, which limits cleaning effectiveness and convenience. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cleaning brush whose shape can adapt to the contour of the item to be cleaned in order to fit different types of items, in light of the current state of the technology.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a cleaning brush, comprising:

[0006] A mounting base that defines an installation chamber;

[0007] A drive motor is located in the mounting cavity of the fixed base;

[0008] The brush body is a long, elastic brush that is connected to the drive motor and can be rotated by the drive motor.

[0009] Also includes:

[0010] A rotating frame is connected to the output shaft of the drive motor and can be driven to rotate by the output shaft of the drive motor; the brush body is connected to the rotating frame.

[0011] A winding reel is sleeved on the main body of the drive motor and can rotate around the axis of the main body of the drive motor. The winding reel has winding grooves.

[0012] A pull cord is wound in the winding groove of the winding reel. The two ends of the pull cord are respectively connected to the two ends of the brush body along its length. The pull cord can be tightened or released when the winding reel rotates. When the pull cord is tightened, the pull cord causes the two ends of the brush body along its length to bend towards the side where the fixed base is located, so that the brush body as a whole takes on a curved arc structure. When the pull cord is released, the brush body returns to its initial state under its own elastic force.

[0013] The winding reel can also slide relative to the main body of the drive motor along the axial direction of the drive motor between a first position and a second position under the action of external force. When the winding reel is in the first position, the winding reel is close to the rotating frame and connected to the rotating frame so that it can rotate with the rotating frame. When the winding reel is in the second position, the winding reel is away from the rotating frame and its rotation can be restricted by the limiting member.

[0014] By using the pull cord and the winding reel, the brush body can be controlled to bend into an arc shape, flexibly conforming to the surface to be cleaned and improving cleaning efficiency. The winding reel can slide axially, realizing the switching between two working modes: the first working mode, when connected with the rotating frame, the brush body rotates and remains bent, which is suitable for cleaning curved surfaces; the second working mode, when disconnected from the rotating frame, the brush body only rotates without bending, which is suitable for cleaning flat surfaces. The brush body returns to its original position by its own elasticity after the pull cord is released, making the structure simple and reliable.

[0015] Considering the need for stable positioning of the winding reel during position switching, and to prevent accidental bending or rotational failure of the brush body due to misoperation, as an improvement, the winding reel also has a limiting groove located above the winding groove and coaxially arranged with the winding groove. The top and side walls of the limiting groove have a downwardly protruding first limiting buckle. It also includes: an operating handle, movably mounted on the fixed base, the operating handle having a limiting arm extending toward the limiting groove of the winding reel, the end of the limiting arm extending into the limiting groove of the winding reel, and the end of the limiting arm having an upwardly protruding second limiting buckle; first An elastic element acts on the operating handle, ensuring the handle always tends to move downwards. When the winding reel is moved upwards to the second position by the operating handle, the second limiting protrusion of the limiting arm and the first limiting protrusion of the winding reel form a circumferential limit, restricting the rotation of the winding reel. The second limiting protrusion constitutes the limiting element. When the winding reel moves downwards to the first position under the action of the first elastic element, the second limiting protrusion of the limiting arm and the first limiting protrusion of the winding reel release their circumferential limit, allowing the winding reel to rotate with the rotating frame. By moving the winding reel up and down with the operating handle and utilizing the engagement of the first and second limiting protrusions, the winding reel is rotated and locked in the second position, making the operation intuitive and reliable. The first elastic element automatically resets the operating handle, ensuring the winding reel is always in the first position (rotatable state), reducing manual intervention. The cooperation between the limiting arm and the limiting groove provides a guiding effect, enhancing sliding stability.

[0016] Considering that single-point limiting may cause uneven force on the winding reel, resulting in skewing or jamming, as an improvement, at least two limiting arms are symmetrically arranged, and multiple first limiting protrusions on the top and side walls of the limiting groove are arranged sequentially along the circumference of the limiting groove. The symmetrically arranged multiple limiting arms and multiple first limiting protrusions disperse the limiting force, improving the locking stability of the winding reel in the second position; wherein, the circumferentially distributed first limiting protrusions allow the winding reel to be locked at multiple angular positions, adapting to different operational needs.

[0017] As an improvement, the operating handle includes a handle slider and a first handle portion connected to the top of the handle slider. The first handle portion protrudes upward relative to the top of the fixed base. A limiting slide is formed within the fixed base, corresponding to the peripheral area of ​​the main body of the drive motor, to constrain the up-and-down sliding of the handle slider. The cooperation between the handle slider and the limiting slide ensures that the operating handle moves along a fixed path, preventing swaying. The first handle portion protruding from the top of the fixed base is ergonomic and facilitates user lifting operation.

[0018] Considering that a single-sided handle slider may cause uneven force on the winding reel, affecting the smoothness of sliding, as an improvement, the operating handle has two handle sliders symmetrically arranged about the central axis of the drive motor, and the fixed base also has two corresponding limiting slides. The symmetrical arrangement of the dual handle sliders balances the force on the winding reel, making the sliding smoother and improving the operating feel.

[0019] The aforementioned elastic element can employ various existing technologies, including compression springs, torsion springs, leaf springs, and other elastic components. However, to better match the aforementioned operating handle, as an improvement, the first elastic element is a leaf spring, which abuts against the corresponding side wall of the handle slider and the fixed base. The leaf spring is low in cost, occupies little space, and provides uniform elastic force, ensuring reliable reset of the operating handle.

[0020] To facilitate gripping and applying pressure during cleaning, the top of the mounting base is further improved with an upwardly extending second handle, positioned above the first handle. This second handle provides a gripping point for the user during cleaning and is located adjacent to the first handle (for cord winding), allowing for convenient one-handed operation.

[0021] To ensure rapid connection and separation between the winding reel and the rotating frame, and to transmit rotational power during connection, an improvement is made by providing a magnet at the top of the rotating frame. A magnetic guide is located on the bottom of the winding reel in the area corresponding to the magnet. When the winding reel is in the first position, it is connected to the rotating frame through the attraction between the magnet and the magnetic guide. The attraction between the magnet and the magnetic guide allows the winding reel to automatically connect with the rotating frame in the first position, ensuring power transmission. This magnetic attraction method reduces mechanical wear, lowers noise, and improves durability.

[0022] As an improvement, the brush body includes a brush body and bristles disposed on the brush body, the bristles extending from the brush body in a direction away from the mounting base. The brush body provides elastic support, and the bristle extension direction optimizes the cleaning contact surface, balancing flexibility and cleaning effectiveness.

[0023] To ensure good shape recovery after bending and avoid plastic deformation, the brush body is an axially hollow tube with a bendable spring strip inserted inside. The two ends of the pull rope are connected to the corresponding ends of the spring strip within the tube. The spring strip enhances the brush body's elastic recovery capability, ensuring it returns to its initial state after multiple bends. The pull rope's direct connection to the spring strip allows for more direct transmission of bending force, improving the brush's bending response speed and control precision.

[0024] Compared with existing technologies, the advantages of this invention are as follows: The cleaning brush of this invention, through the cooperation of a rotatable winding disc and a pull cord, achieves active control over the brush body's shape, allowing the long, elastic brush to flexibly switch between a straight and curved state. Users do not need to purchase multiple brushes; a single brush body can adapt to different cleaning scenarios such as flat countertops and curved bowl walls, significantly reducing purchase and storage costs and improving ease of use and consistency. Simultaneously, the brush body is driven by a motor to rotate, enhancing cleaning efficiency and effectiveness, overcoming the time-consuming and laborious problems of manual brushes. While maintaining a compact structure, this cleaning brush also achieves intelligent deformation and efficient drive, effectively improving the adaptability of the cleaning process and the user experience. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a cleaning brush according to an embodiment of the present invention. The brush body is in a released state, and a matching disc is shown.

[0026] Figure 2 This is a three-dimensional structural diagram of a cleaning brush according to an embodiment of the present invention. The brush body is in a tightened state, and a suitable bowl is shown.

[0027] Figure 3 This is a vertical cross-sectional view of a cleaning brush according to an embodiment of the present invention, with the winding reel in the second position;

[0028] Figure 4 This is a vertical cross-sectional view of a cleaning brush according to an embodiment of the present invention, with the winding reel in a first position;

[0029] Figure 5 This is a vertical cross-sectional perspective view of a cleaning brush according to an embodiment of the present invention, with the winding reel in a first position;

[0030] Figure 6 This is an exploded view of the cleaning brush according to an embodiment of the present invention;

[0031] Figure 7 This is a vertical sectional perspective view of the fixing seat of the cleaning brush according to an embodiment of the present invention. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0034] Figures 1-7 A preferred embodiment of the cleaning brush of the present invention is shown. This embodiment of the cleaning brush mainly includes a fixed base, a drive motor, a rotating frame, a winding reel, a pull rope, a brush body, and an operating handle.

[0035] See Figure 1 The mounting base forms the main outer shell of the cleaning brush, defining an open mounting chamber at the bottom. The top of the mounting base extends upwards to form a C-shaped handle, also known as the second handle. The top of the operating handle also extends upwards to form a C-shaped handle, known as the first handle. The second handle is located directly above the first handle, with both extending approximately perpendicularly. The second handle is primarily used for gripping and applying downward pressure during cleaning, while the first handle is specifically used to lift the operating handle upwards to switch operating modes. Inside the mounting base, in the peripheral area of ​​the drive motor body, two vertically extending limiting tracks are symmetrically formed about the central axis of the drive motor.

[0036] See Figure 3 The drive motor is fixedly installed in the mounting chamber of the mounting base, with its output shaft extending downwards. The drive motor serves as a power source to drive the rotation of the cleaning brush.

[0037] The rotating frame is fixedly connected to the output shaft of the drive motor and can rotate together with the output shaft. The top of the rotating frame is a columnar structure, and a magnet is embedded in the center of the top.

[0038] The winding reel is fitted around the main body of the drive motor and can rotate around the axis of the drive motor body. The lower part of the winding reel is a sleeve structure with an open bottom, which is adapted to the top columnar structure of the rotating frame. A magnetic conductor (e.g., an iron sheet) is provided in the area at the bottom of the winding reel corresponding to the magnet. When the winding reel is in a lower position (i.e., the first position), its sleeve structure is fitted onto the top of the rotating frame. Through the magnetic attraction between the magnet and the magnetic conductor, the winding reel can be tightly connected to the rotating frame, thus rotating synchronously with the rotating frame. A winding groove is provided on the side of the winding reel for winding the pull rope. Above the winding groove, the winding reel also has an annular limiting groove arranged coaxially with the winding groove. On the inner side of the top wall of the limiting groove, multiple downwardly protruding first limiting buckles are evenly distributed along its circumference.

[0039] See Figure 2 The pull rope is wound in the winding groove of the winding spool. The two ends of the pull rope are led upwards and finally connected to the two ends of the brush body along its length.

[0040] The brush body is a long, elastic brush connected to a rotating frame. Specifically, the brush body includes a brush body and bristles densely arranged on the brush body. The bristles extend from the brush body in a direction away from the fixed base, forming a cleaning surface. The brush body is an axially hollow tube to provide good elasticity. A flexible, self-resetting spring bar is inserted into the tube to enhance the overall elasticity and resilience of the brush body. The two ends of the pull rope extend into the tube of the brush body and are fixedly connected to the corresponding ends of the internal spring bar.

[0041] The operating handle is used to control the position of the winding reel. The operating handle includes two handle sliders symmetrically arranged about the central axis of the drive motor, and a first handle portion connected to the top of these two handle sliders. The first handle portion protrudes upwards from a corresponding opening on the top of the mounting base, facilitating user finger hooking. The two handle sliders are respectively slidably constrained within two corresponding limiting tracks in the mounting base, ensuring that the operating handle can only move smoothly in the vertical direction. A limiting arm extends from the lower part of each handle slider towards the winding reel. The ends of the two limiting arms extend downwards into the annular limiting groove of the winding reel. At the end of each limiting arm, a second limiting protrusion is provided that protrudes upwards.

[0042] The first elastic element is used to give the operating handle a tendency to automatically reset. In this embodiment, the first elastic element is a spring sheet. The spring sheet presses against the corresponding side wall of the handle slider of the operating handle and the limiting slide of the fixed seat, generating an elastic force that always forces the operating handle to move downward.

[0043] The working principle and usage process of the cleaning brush in this embodiment:

[0044] Plane cleaning mode (e.g.) Figure 1 , Figure 4 , Figure 5 (As shown): In this mode, the winding reel is in the first position (lower position). Under the action of the first elastic element (spring), the operating handle and its limiting arm are in the lower limit position. At this time, the magnetic conductor at the bottom of the winding reel is attracted to the magnet at the top of the rotating frame, and the winding reel and the rotating frame are connected as one unit. At the same time, the second limiting protrusion at the end of the limiting arm is located in the limiting groove, but it is not engaged with the first limiting protrusion of the winding reel in the circumferential direction, so it does not restrict the rotation of the winding reel. The pull rope is in a released or slightly slack state, and the brush body maintains its initial straight strip shape under the action of its own elasticity (mainly from the internal spring strip). Start the drive motor, and the rotating frame drives the entire brush body and the connected winding reel to rotate together, so as to rotate and brush flat or near-flat items such as plates and countertops.

[0045] Curved surface cleaning mode switching and cleaning (e.g.) Figure 2 , Figure 3 (As shown): When cleaning items with curved inner walls, such as bowls, the brush body needs to be shaped into this curved form. Specifically, the user pulls the exposed first handle upwards with their fingers, overcoming the elastic force of the first elastic element, causing the operating handle to move upwards. The operating handle, through its limiting arm, moves the winding reel upwards to the second position (upper position). At this time, the winding reel separates from the rotating frame, and the magnetic attraction is greatly weakened. At the same time, due to the upward movement of the winding reel, the second limiting protrusion at the end of the limiting arm and the first limiting protrusion on the top wall of the limiting groove of the winding reel abut against each other in the circumferential direction, forming a limit and preventing the winding reel from rotating. Keep the operating handle in the lifted position, and then start the drive motor. The rotating frame begins to rotate, but because the winding reel is limited and cannot rotate, the rotating frame rotates relative to the winding reel. This relative movement causes the pull rope connected to both ends of the brush body and wound on the winding reel to be gradually tightened. The pull cord, by pulling the spring bars at both ends of the brush body, forces the two ends of the brush body towards the fixed base, causing the entire elongated brush body to arch upwards from the middle, forming an arc-shaped structure that conforms to the inner wall of the bowl. The user can adjust the tension of the pull cord by controlling the motor's running time (or by jogging) according to the size and curvature of the bowl, thereby controlling the bending arc of the brush body. After the brush body bends to the desired arc, the user releases the first handle. Under the action of the first elastic element, the operating handle and the winding reel move downwards, returning to the first position. The magnetic conductor at the bottom of the winding reel re-engages with the magnet of the rotating frame, and the two reconnect. At this point, although there may be a very slight release of the pull cord, the already formed curved arc of the brush body is basically maintained, and because the winding reel is back to a rotatable state, the drive motor can drive the rotating frame, the winding reel, and the arc-shaped brush body to rotate stably together, efficiently and closely scrubbing the inner wall of the bowl.

[0046] After cleaning, turn off the drive motor. If you need the brush body to return to a straight state, you can pull the operating handle to the second position again and briefly start the motor to reverse, or manually rotate the brush body in the opposite direction to release the pull rope on the winding reel. The brush body will then return to its initial straight state under the self-elastic force of the internal spring strip.

[0047] Based on the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. For example, the number of limiting arms of the operating handle can be three, evenly distributed circumferentially. Correspondingly, the number of first limiting protrusions on the top wall of the winding reel limiting groove is also multiple and evenly arranged circumferentially. This multi-support, multi-point limiting design allows the winding reel to be subjected to more balanced force in the second position, the locking to be more stable, and locking can be achieved at more rotation angle positions. Alternatively, the operating handle can be provided with only one handle slider and one limiting arm, with a limiting slide rail provided in the fixed seat accordingly. Although the symmetrical double slider design is superior in stability, the single slider design simplifies the structure and can still achieve basic sliding and limiting functions. Furthermore, the first elastic element is not limited to a spring sheet, but can also be a compression spring sleeved on the handle slider guide post, with one end abutting against the handle slider and the other end abutting against the fixed seat structure, which can also provide the elastic force to reset the operating handle. For example, the brush body is not limited to a hollow tube with a built-in spring strip. The brush body can also be made of solid rubber or silicone material with high elasticity and shape memory properties, and the two ends of the pull rope are directly connected to the ends of the solid brush body. Relying on the elasticity of the material itself, the brush body can basically return to its original position after the pull rope is released.

Claims

1. A cleaning brush, comprising: A fixed base (1) defines an installation chamber (10); The drive motor (2) is located in the mounting chamber (10) of the fixed base (1); The brush body (3) is a long strip of elastic brush. The brush body (3) is connected to the drive motor (2) and can be driven to rotate by the drive motor (2). Its features also include: A rotating frame (21) is connected to the output shaft of the drive motor (2) and can be driven to rotate by the output shaft of the drive motor (2). The brush body (3) is connected to the rotating frame (21). The winding disc (4) is sleeved on the main body of the drive motor (2) and can rotate around the axis of the main body of the drive motor (2). The winding disc (4) has a winding groove (41). A pull rope (44) is wound in the winding groove (41) of the winding reel (4). The two ends of the pull rope (44) are respectively connected to the two ends of the brush body (3) in the length direction. The pull rope (44) can be tightened or released when the winding reel (4) rotates. When the pull rope (44) is tightened, the pull rope (44) drives the two ends of the brush body (3) in the length direction to bend towards the side where the fixed seat (1) is located, so that the brush body (3) as a whole is in a curved arc structure. When the pull rope (44) is released, the brush body (3) returns to the initial state under its own elastic force. The winding reel (4) can also slide relative to the main body of the drive motor (2) along the axial direction of the drive motor (2) between a first position and a second position under the action of external force. When the winding reel (4) is in the first position, the winding reel (4) is close to the rotating frame (21) and connected with the rotating frame (21) so that it can rotate together with the rotating frame (21). When the winding reel (4) is in the second position, the winding reel (4) is away from the rotating frame (21) and its rotation can be restricted by the limiting member.

2. The cleaning brush according to claim 1, characterized in that: The winding disc (4) also has a limiting groove (42) located above the winding groove (41) and coaxially arranged with the winding groove (41). The top wall and side wall of the limiting groove (42) have a first limiting buckle (421) protruding downward. The cleaning brush also includes: An operating handle (5) is movably mounted on the fixed base (1). The operating handle (5) has a limiting arm (51) extending toward the limiting groove (42) of the winding disc (4). The end of the limiting arm (51) extends into the limiting groove (42) of the winding disc (4), and the end of the limiting arm (51) has an upwardly protruding second limiting buckle (511). The first elastic element (54) acts on the operating handle (5) and makes the operating handle (5) always have a downward tendency; When the winding disc (4) is moved to the second position by the operating handle (5), the second limiting protrusion (511) of the limiting arm (51) and the first limiting protrusion (421) of the winding disc (4) form a limit in the circumferential direction to restrict the rotation of the winding disc (4). The second limiting protrusion (511) constitutes the limiting member. When the winding reel (4) moves down to the first position under the action of the first elastic member (54), the second limiting buckle (511) of the limiting arm (51) and the first limiting buckle (421) of the winding reel (4) are released from their circumferential limiting positions, allowing the winding reel (4) to rotate together with the rotating frame (21).

3. The cleaning brush according to claim 2, characterized in that: The limiting arm (51) has at least two symmetrically arranged, and the first limiting protrusion (421) on the top wall and side wall of the limiting groove (42) has multiple protrusions arranged sequentially along the circumference of the limiting groove (42).

4. The cleaning brush according to claim 2, characterized in that: The operating handle (5) includes a handle slider (52) and a first handle part (53) connected to the top of the handle slider (52). The first handle part (53) is exposed upward relative to the top of the fixed base (1). The fixed base (1) has a limiting slide (11) in the outer area of ​​the main body of the drive motor (2) to constrain the handle slider (52) to slide up and down.

5. The cleaning brush according to claim 4, characterized in that: The operating handle (5) has two handle sliders (52) arranged symmetrically about the central axis of the drive motor (2), and the fixed base (1) also has two corresponding limit slides (11).

6. The cleaning brush according to claim 4, characterized in that: The first elastic element (54) is a spring sheet, which abuts against the corresponding side wall of the handle slider (52) and the fixed seat (1).

7. The cleaning brush according to claim 4, characterized in that: The top of the fixed base (1) also has an upwardly extending second handle (12) located above the first handle (53).

8. The cleaning brush according to any one of claims 1 to 7, characterized in that: The top of the rotating frame (21) is also provided with a magnet (22), and the bottom of the winding disc (4) is provided with a magnetic guide (43) in the area corresponding to the magnet (22). When the winding disc (4) is in the first position, the winding disc (4) and the rotating frame (21) are connected together by the attraction between the magnet (22) and the magnetic guide (43).

9. The cleaning brush according to any one of claims 1 to 7, characterized in that: The brush body (3) includes a brush body (31) and bristles (32) disposed on the brush body (31), the bristles (32) extending from the brush body (31) in a direction away from the fixing seat (1).

10. The cleaning brush according to claim 9, characterized in that: The brush body (31) is an axially hollow tube, and a bendable and resettable spring strip (33) is inserted inside the tube. The two ends of the pull rope (44) are respectively connected to the corresponding ends of the spring strip (33) inside the tube.

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