Cleaning brush head and cleaning apparatus

Abstract

Provided in the present disclosure are a cleaning brush head and a cleaning apparatus. The cleaning brush head comprises: a rolling brush compartment, which has an accommodating space; and a rolling brush assembly, which comprises at least a first rolling brush, a second rolling brush, a third rolling brush and a fourth rolling brush each comprising a fitting end and a free end, wherein the fitting end is driven by a driving device; the free end of the first rolling brush and the free end of the second rolling brush are arranged opposite each other and form a first gap; the free end of the third rolling brush and the free end of the fourth rolling brush are arranged opposite each other and form a second gap; and the first gap and the second gap at least partially overlap in a radial direction.

Description

Cleaning brush heads and cleaning equipment

[0001] Cross-reference to related applications

[0002] This disclosure claims priority to Chinese patent applications Nos. 202410940634.9 and 202421659219.8, filed on July 12, 2024, which are incorporated herein by reference in their entirety. Technical Field

[0003] This disclosure relates to the field of cleaning equipment technology, and more specifically, to a cleaning brush head and cleaning equipment. Background Technology

[0004] With the increasing popularity of smart homes, cleaning robots are gradually becoming an indispensable cleaning device in household life. A cleaning robot is a device that can automatically clean floors within a certain range. It has the advantages of being easy to use and having high cleaning efficiency, and has gradually become one of the commonly used cleaning tools in work and life. Summary of the Invention

[0005] The purpose of this disclosure is to address the technical problems in related technologies by providing a cleaning brush head and cleaning device. The specific solution is as follows:

[0006] A first aspect of this disclosure provides a cleaning brush head, comprising:

[0007] The roller brush compartment has storage space;

[0008] A roller brush assembly includes at least a first roller brush, a second roller brush, a third roller brush, and a fourth roller brush. Each of the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush includes an assembly end and a free end. The assembly end is driven by a driving device. The free ends of the first roller brush and the second roller brush are disposed opposite each other and form a first gap. The free ends of the third roller brush and the fourth roller brush are disposed opposite each other and form a second gap.

[0009] The first gap and the second gap at least partially overlap in the radial direction of the roller brush assembly.

[0010] In some embodiments, the cleaning brush head further includes a roller brush support frame, wherein the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush are fixedly or detachably mounted to the roller brush support frame.

[0011] In some embodiments, the brush support frame is connected to one end of the first brush, the second brush, the third brush, and the fourth brush. In response to the first brush, the second brush, the third brush, or the fourth brush rotating to an axially tilted position, the first brush, the second brush, the third brush, or the fourth brush is mounted on the brush support frame or detached from the brush support frame.

[0012] In some embodiments, the roller brush chamber has at least one drive end, and the roller brush support frame is disposed at the drive end of the roller brush chamber and configured to rotate within a preset angle about a connection position with the drive end.

[0013] In some embodiments,

[0014] One end of the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush has a plug-in structure, configured to be freely plugged into and unplugged from the roller brush support frame, and rotates as the roller brush support frame rotates.

[0015] In some embodiments, the roller brush support frame includes:

[0016] The support frame body is rotatably connected to the drive end of the roller brush chamber;

[0017] The drive shaft passes through the support frame body and is connected to the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush, and is configured to drive the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush to rotate.

[0018] In some embodiments, the support frame body includes:

[0019] Support end plate, configured to abut against the end of the roller brush;

[0020] A connecting rod, substantially perpendicular to the support end plate and extending axially along the first, second, third, or fourth roller brush, is configured such that the drive shaft passes through the connecting rod and connects to the first, second, third, or fourth roller brush, and the drive shaft is free to rotate within the connecting rod.

[0021] In some embodiments, the support frame body further includes:

[0022] Support side plates are disposed on both sides of the connecting rod to support the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush.

[0023] In some embodiments, the support frame body further includes:

[0024] A protruding structure is provided at the root of the support side plate and is configured to engage with the side wall of the roller brush chamber.

[0025] In some embodiments, the support frame body further includes:

[0026] A support member is disposed on the side of the support end plate away from the connecting rod. The support member is connected to the roller brush chamber and configured to allow the roller brush support frame to rotate around the support member.

[0027] In some embodiments, the support member is an arc-shaped member.

[0028] In some embodiments, the roller brush chamber has a limiting hole, and the support member passes through the limiting hole and is rotatably connected to the drive end of the roller brush chamber.

[0029] In some embodiments, the end of the drive shaft away from the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush has a bonding structure and is configured to be connected to the drive end of the roller brush chamber; the end of the drive shaft inserted into the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush has a fastening structure and is configured to be fastened to the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush.

[0030] In some embodiments, the end of the fastening structure has at least one claw configured to engage with a locking structure within the roller brush.

[0031] In some embodiments, the plug-in structure has a stepped portion, which causes the plug-in structure to have a different inner diameter.

[0032] In some embodiments, the plug-in structures with different inner diameters are used to accommodate the connecting rods of the support frame body and the fastening structures.

[0033] In some embodiments, the cleaning brush head further includes:

[0034] A gearbox is disposed at the drive end of the roller brush chamber. The output shaft end of the gearbox has a snap-fit ​​recess. After the snap-fit ​​recess snaps into the bonding structure, it drives the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush to rotate.

[0035] In some embodiments, the outer edge of the snap-fit ​​recess has an inclined surface away from the axial direction, and the outer contour of the inclined surface is larger than the inner contour of the snap-fit ​​recess.

[0036] In some embodiments, the gearbox includes a first gearbox and a second gearbox, which are connected by a drive linkage.

[0037] In some embodiments, the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush further includes a rubber brush and / or a bristle brush, and in response to rotation of the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush, the object to be cleaned moves along the rubber brush and / or bristle brush from the assembled end to the free end.

[0038] In some embodiments, the roller brush chamber includes a suction port, which is located on one side near the free end of the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush.

[0039] In some embodiments, the roller brush chamber has a limiting groove on the side near the drive end, configured to accommodate the protruding structure.

[0040] In some embodiments, the first roller brush includes a first brush member, the second roller brush includes a second brush member, the third roller brush includes a third brush member, and the fourth roller brush includes a fourth brush member, wherein at least two of the first brush member, the second brush member, the third brush member, and the fourth brush member have the same or different structures.

[0041] A second aspect of this disclosure provides a cleaning device including the cleaning brush head provided in the first aspect of this disclosure.

[0042] Compared with related technologies, the above-described solutions of this disclosure have at least the following beneficial effects:

[0043] The cleaning brush head disclosed herein includes a roller brush assembly, comprising at least a first roller brush, a second roller brush, a third roller brush, and a fourth roller brush. Each of the first, second, third, and fourth roller brushes includes an assembly end and a free end. The free ends of the first and second roller brushes are disposed opposite to each other and form a first gap. The free ends of the third and fourth roller brushes are disposed opposite to each other and form a second gap. The first gap and the second gap at least partially overlap in the radial direction, thereby facilitating the movement of the object to be cleaned from the ends of the roller brushes towards the center and its subsequent suction, thus improving cleaning efficiency.

[0044] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0046] Figure 1 is a schematic diagram of the structure of a cleaning brush head according to an exemplary embodiment.

[0047] Figure 2 is a structural schematic diagram illustrating the assembly and disassembly process of a roller brush according to an exemplary embodiment.

[0048] Figure 3 is an axial cross-sectional view of a roller brush according to an exemplary embodiment.

[0049] Figure 4 is a schematic diagram of the structure of a roller brush support frame according to an exemplary embodiment.

[0050] Figure 5 is a structural schematic diagram of the support frame body according to an exemplary embodiment.

[0051] Figure 6 is a schematic diagram of the structure of a drive shaft according to an exemplary embodiment.

[0052] Figure 7 is a cross-sectional view of a gearbox according to an exemplary embodiment.

[0053] Figure 8 is a schematic diagram illustrating the connection between the drive shaft and the gearbox according to an exemplary embodiment.

[0054] Figure 9 is a cross-sectional view of a brush chamber according to an exemplary embodiment.

[0055] Figure 10 is a top view of a brush chamber according to an exemplary embodiment.

[0056] Figure 11 is a rear view of a cleaning brush head according to an exemplary embodiment.

[0057] Reference numerals: Cleaning brush head 1000, dust collection channel 1100; Roller brush assembly 100, assembly end 101, free end 102, roller brush body 110, spiral brush component 111, plug-in structure 120, locking structure 130, end cap 140, roller brush baffle 150; Roller brush chamber 200, accommodating space 201, limiting hole 203, through hole 204, drive end 210; Roller brush support frame 300, support frame body 310, drive shaft 320, fastening structure 321, claw 322, keying structure 323, support end plate 330, hollow connecting rod 340, support side plate 350, protruding structure 351, support component 360, connecting bolt 370; Gearbox 400, locking recess 410, inclined surface 411, first gearbox 421, second gearbox 422, drive connecting rod 423. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this disclosure clearer, the disclosure will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0059] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, and other quantifiers are similarly intended.

[0060] It should be understood that although the terms first, second, third, etc., may be used to describe embodiments of this disclosure, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, first may also be referred to as second without departing from the scope of embodiments of this disclosure, and similarly, second may also be referred to as first. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] It should be understood that the term "and / or" as used herein is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0062] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0064] In related technologies, the roller brush moves the object to be cleaned to one end of the brush chamber during rotation, where it is then sucked away by a suction port located at that end. This cleaning brush head increases the travel distance of the object to be cleaned, reducing cleaning efficiency. As user demands continue to increase, there is an urgent need for a cleaning brush head that can perform cleaning more conveniently and efficiently.

[0065] Therefore, this disclosure provides a cleaning brush head, comprising: a roller brush chamber having a receiving space; a roller brush assembly including at least a first roller brush, a second roller brush, a third roller brush, and a fourth roller brush, wherein the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush each include an assembly end and a free end, wherein the assembly end is driven by a driving device, the free end of the first roller brush and the free end of the second roller brush are disposed opposite to each other and form a first gap; the free end of the third roller brush and the free end of the fourth roller brush are disposed opposite to each other and form a second gap; the first gap and the second gap at least partially overlap in the radial direction.

[0066] The cleaning brush head disclosed herein includes a roller brush assembly, comprising at least a first roller brush, a second roller brush, a third roller brush, and a fourth roller brush. Each of the first, second, third, and fourth roller brushes includes an assembly end and a free end. The free ends of the first and second roller brushes are disposed opposite to each other and form a first gap. The free ends of the third and fourth roller brushes are disposed opposite to each other and form a second gap. The first gap and the second gap at least partially overlap in the radial direction, thereby facilitating the movement of the object to be cleaned from the ends of the roller brushes towards the center and its subsequent suction, thus improving cleaning efficiency.

[0067] The embodiments of this disclosure are described in detail below with reference to the accompanying drawings.

[0068] As shown in Figure 1, a first aspect of this disclosure provides a cleaning brush head 1000, comprising: a roller brush chamber 200, a roller brush support frame 300, a gearbox 400, and a roller brush assembly 100. The cleaning brush head 1000 can be assembled into a cleaning device to clean objects on a work surface. The cleaning brush head 1000 includes a roller brush chamber 200, which has a drive end 210, wherein at least one drive end 210 is provided. The drive end 210 is connected to the gearbox 400, which provides driving force through a driving element. The roller brush chamber 200 has a receiving space 201 configured to receive the roller brush assembly 100. The roller brush assembly 100 includes at least a first roller brush, a second roller brush, a third roller brush, and a fourth roller brush. Each of the first, second, third, and fourth roller brushes includes a mounting end 101 and a free end 102. The assembly end 101 is connected to the end of the roller brush chamber 200, and the free end 102 extends approximately to the middle of the receiving space 201. The assembly end 101 is driven by a driving device. The free ends of the first and second roller brushes are positioned opposite each other, forming a first gap. The free ends of the third and fourth roller brushes are positioned opposite each other, forming a second gap. The first and second gaps at least partially overlap in the radial direction, facilitating the removal of the object being cleaned from the ends of the roller brushes towards the center, thus improving cleaning efficiency. Optionally, the widths of the first and second gaps may be equal or unequal. Therefore, the at least partial overlap in the radial direction of the first and second gaps generally includes at least one of the following: complete overlap when the first and second gaps are equal, partial overlap after misalignment; inclusive overlap when the first and second gaps are unequal, partial overlap after misalignment. The first gap and the second gap are configured to at least partially overlap in the radial direction, so that the first gap and the second gap are connected in the direction perpendicular to the radial direction. This allows the object to be cleaned to move freely in the direction perpendicular to the axial direction. When the object to be cleaned moves to the free end along either roller brush axis, it is freely sucked away after passing through the first gap and the second gap, thus improving cleaning efficiency.

[0069] In some embodiments, the first and second roller brushes are coaxial, and the third and fourth roller brushes are coaxial. The two roller brushes being positioned approximately on the same axis reduces the axial dimension of the cleaning brush head, thus decreasing the overall size of the cleaning brush head. The coaxial arrangement of the two roller brushes allows the objects to be cleaned on both sides to move simultaneously towards the free end of the roller brush, concentrating in the receiving space 201 before being sucked away, improving cleaning efficiency.

[0070] As shown in Figure 2, the first, second, third, and fourth roller brushes can tilt and rotate in a direction perpendicular to the axial direction as the roller brush support frame 300 rotates. When the first, second, third, and fourth roller brushes rotate to the axial tilt position, they can be freely detached from the roller brush support frame 300. Alternatively, a new roller brush can be inserted into the roller brush support frame 300, and then the first, second, third, or fourth roller brushes can be rotated to the axial position, thus assembling them into the receiving space 201. Therefore, the first, second, third, or fourth roller brushes of the cleaning brush head of this disclosure can be independently disassembled and replaced conveniently.

[0071] This disclosure uses the assembly method of a single roller brush as an example for illustration. The assembly method of multiple roller brushes can be understood by referring to the assembly method of a single roller brush.

[0072] In some embodiments, as shown in FIG3, the roller brush includes a roller brush body 110, the surface of which is provided with bristles and / or brush elements 111, such as spiral brush elements. The spiral brush elements 111 are inclinedly disposed on the roller brush body 110 and configured to convey dirt from the operating surface to the dust collection channel 1100. The spiral brush elements 111 can be inserted axially into a slot on the outer surface of the roller brush body 110, or they can be integrally formed with the roller brush body 110; there is no limitation on this. Multiple sets of spiral brush elements 111 can be disposed on the roller brush body 110. The bristles can be disposed between at least two sets of spiral brush elements 111, arranged substantially parallel to the spiral brush elements 111, and configured to assist in cleaning the operating surface.

[0073] Furthermore, the spiral brush 111 has a fixed end connected to the roller brush body 110 and a free end away from the roller brush body 110. The free end of the spiral brush 111 can be inclined towards the middle of the roller brush body 110. With this structural design, hair or dirt entangled on the roller brush body 110 will be conveyed from the fixed end of the roller brush body 110 towards the free end of the roller brush body 110 as the roller brush rotates, under the action of the inclined spiral brush 111, so that the entangled material is conveyed to the dust collection channel 1100. The free end 102 of the roller brush can be provided with an end cap 140, which is configured to prevent dust from entering the inside of the roller brush, causing contamination of the drive shaft 320, resulting in oxidation of the inner wall of the roller brush and making it difficult to separate from the drive shaft 320. The end cap 140 is also used in the assembly process of the spiral brush 111. When the end cap 140 is not installed, the spiral brush 111 can be axially inserted into the slot on the outer surface of the roller brush body 110 from the free end of the roller brush body 110. After the spiral brush 111 is assembled, the end cap 140 is fastened to the free end 102 of the roller brush body 110 to prevent the spiral brush 111 from falling off. In some embodiments, the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush further includes a rubber brush and / or a bristle brush. In response to the rotation of the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush, the object to be cleaned moves along the rubber brush and / or bristle brush from the assembly end to the free end. The first roller brush includes a first brush member, the second roller brush includes a second brush member, the third roller brush includes a third brush member, and the fourth roller brush includes a fourth brush member. At least two of the first brush member, the second brush member, the third brush member, and the fourth brush member have the same or different structures.

[0074] In some embodiments, to prevent entanglement on the surface of the brush body 110 from entering the drive end 210, the brush further includes a brush baffle 150. The brush baffle 150 is disposed at one end of the brush body 110 and extends radially annularly toward the brush body 110. The diameter of the brush baffle 150 is larger than the diameter of the brush body 110 in the radial direction of the brush body 110, configured to isolate the brush body 110 from the drive end 210 to prevent entanglement on the brush body 110 from entering the drive end 210.

[0075] Specifically, when the roller brush rotates at high speed in normal working condition, the dirt wrapped around the surface of the roller brush body 110 will be transported from the assembly end 101 of the roller brush body 110 toward the free end 102. The setting of the roller brush baffle 150 can effectively prevent dirt from entering the drive end 210.

[0076] In some embodiments, as shown in Figures 1-3, the roller brush support frame 300 is assembled to the drive end 210 of the roller brush chamber 200 and configured to rotate within a preset angle about its connection position with the drive end 210. One end of the first, second, third, and fourth roller brushes has a plug-in structure 120. Specifically, the plug-in structure 120 is disposed inside the first, second, third, and fourth roller brushes and communicates with at least one end face of each roller brush. The plug-in structure 120 is configured to allow the first, second, third, and fourth roller brushes to be freely plugged into and removed from the roller brush support frame 300. When the first, second, third, and fourth roller brushes are connected to the roller brush support frame 300 through the plug-in structure 120, the first, second, third, and fourth roller brushes can rotate as the roller brush support frame 300 rotates. In response to the rotation of the brush support frame 300 to an axially tilted position, the first, second, third, and fourth brushes can be mounted on or detached from the brush support frame 300. In response to the rotation of the brush support frame 300 to an axial position, the first, second, third, and fourth brushes are mounted in the receiving space 201.

[0077] In some embodiments, the roller brush body 110 is hollow, and the insertion structure 120 is disposed inside the roller brush and communicates with at least one end face of the roller brush, configured to allow the roller brush to be freely inserted and removed from the roller brush support frame 300. The insertion structure 120 has a stepped portion. In the axial direction of the roller brush, the distance from the stepped portion to the plane where the roller brush baffle 150 is located is the depth of the insertion structure 120; in the radial direction of the roller brush, the thickness from the stepped portion to the inner sidewall of the insertion structure 120 is the height of the stepped portion. In practical applications, the depth or height of the stepped portion can be adjusted so that the insertion structure 120 has different inner diameters, and insertion structures 120 with different inner diameters are used to accommodate support frame bodies 310 of different models.

[0078] In some embodiments, FIG4 is a schematic diagram of the roller brush support frame structure in an embodiment of the present disclosure; FIG5 is a schematic diagram of the support frame body structure in an embodiment of the present disclosure; FIG6 is a schematic diagram of the drive shaft structure in an embodiment of the present disclosure; as shown in FIG4-FIG6, the roller brush support frame 300 includes: a support frame body 310 and a drive shaft 320. The support frame body 310 is disposed on the drive end 210, and at least one side of the support frame body 310 is in contact with the gearbox 400. Specifically, the support frame body 310 is sleeved on the outside of the drive shaft 320 to support the drive shaft 320. One end of the drive shaft 320 passes through the support frame body 310 and is detachably connected to the roller brush assembly 100, configured to drive the roller brush assembly 100 to rotate. In response to the roller brush assembly 100 being mounted on the drive shaft 320, the roller brush assembly 100 covers at least a portion of the support frame body 310.

[0079] In some embodiments, as shown in FIG6, the drive shaft 320 includes a fastening structure 321 connected to the roller brush assembly 100 to provide driving force to the roller brush assembly 100. When the drive shaft 320 is installed inside the first, second, third, or fourth roller brush, the fastening structure 321 is interference-fitted with the first, second, third, or fourth roller brush, making the first, second, third, or fourth roller brush tightly connected to the drive shaft 320 and not easily separated. Specifically, the surface of the fastening structure 321 is at least partially recessed, and the recess matches the protrusion on the inner wall of the roller brush body 110. The two cooperate with each other to make the connection between the roller brush body 110 and the drive shaft 320 tighter.

[0080] In some embodiments, the specific structure of the recesses included in the fastening structure 321 of each drive shaft 320 may be different. For example, the width or shape of each recess in the circumferential direction of the drive shaft 320 may be inconsistent, thereby ensuring that each roller brush must be assembled to the corresponding drive shaft 320, preventing the roller brush from being poorly assembled due to incorrect assembly, which could easily cause it to loosen or fall off during cleaning.

[0081] In some embodiments, the end of the fastening structure 321 has at least one claw 322. When the claw 322 is pressed under external force, it can tilt in the direction of pressure. The claw 322 is configured to be fastened to the locking structure 130 within the first, second, third, or fourth roller brush. Specifically, the locking structure 130 is disposed inside the roller brush body 110, located on the side of the insertion structure 120 away from the roller brush baffle 150, and is configured to engage with the fastening structure 321 of the drive shaft 320 to restrict the position of the drive shaft 320 within the first, second, third, or fourth roller brush.

[0082] When the drive shaft 320 is installed inside the first, second, third, or fourth roller brush, the drive shaft 320 moves axially within the roller brush body 110 under the action of thrust. As the drive shaft 320 moves under the action of thrust, the inner wall of the roller brush body 110 applies a certain pressure to the claw 322, causing the claw 322 to deform during movement. In response to the fastening structure 321 moving to the locking structure 130, the claw 322 engages with the locking structure 130. The fastening structure 321 prevents the first, second, third, or fourth roller brush from easily detaching from the drive shaft 320 in the axial direction. Furthermore, it allows the first, second, third, or fourth roller brush to rotate stably under the drive of the gearbox 400. Under the combined action of the insertion structure 120 and the locking structure 130, the first roller brush, the second roller brush, the third roller brush or the fourth roller brush is locked to the drive shaft 320, so that the first roller brush, the second roller brush, the third roller brush or the fourth roller brush can be freely inserted and removed from the roller brush support frame 300, and rotate with the rotation of the roller brush support frame 300.

[0083] In some embodiments, as shown in FIG6, the drive shaft 320 has a connecting end 324, which is connected to the gearbox 400 of the drive end 210. The drive shaft 320 is configured to drive the roller brush assembly 100 to rotate at high speed under the drive of the gearbox 400 to clean the operating surface. The connecting end 324 of the drive shaft 320 is movably connected to the drive end 210. In response to being pulled by an external force, the drive shaft 320 can tilt relative to the gearbox 400 in the axial direction of the drive shaft 320. When the support frame body 310 is mounted on the drive shaft 320, the drive shaft 320 passes through the support frame body 310 and connects to the roller brush assembly 100. In this case, pulling the roller brush assembly 100 can simultaneously tilt the drive shaft 320 and the support frame body 310 in the axial direction of the drive shaft 320. Under this rotational condition, the assembly and disassembly of the roller brush assembly 100 can be made more convenient, and in practical applications, the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush can be quickly replaced.

[0084] In some embodiments, the connecting end 324 has a bonding structure 323, which is configured to connect with the driving end 210 of the brush chamber 200. The bonding structure 323 is configured as a polygonal or plum-shaped structure. As shown in FIG5, the driving end 210 of the brush chamber 200 is connected to the gearbox 400, which has a snap-fit ​​recess 410. After the snap-fit ​​recess 410 engages with the bonding structure 323, it drives the first, second, third, or fourth brush to rotate. The snap-fit ​​recess 410 is also a polygonal or plum-shaped structure, and its outline matches that of the bonding structure 323, thereby allowing the bonding structure 323 to be stably connected to the snap-fit ​​recess 410 and rotate under the drive of the output shaft of the gearbox 400.

[0085] In some embodiments, as shown in Figures 7 and 8, the outer edge of the snap-fit ​​recess 410 has an inclined surface 411 away from the center, and the outer contour of the inclined surface 411 is larger than the inner diameter of the snap-fit ​​recess 410. This arrangement facilitates the installation of the bonding structure 323. When the drive shaft 320 is installed in the gearbox 400, the drive shaft 320 needs to be inserted into the snap-fit ​​recess 410 at an angle first, so that the bonding structure 323 connects with the snap-fit ​​recess 410, and then pushed horizontally towards the inside of the snap-fit ​​recess 410 along the axial direction. During the angled insertion process, the bonding structure 323 first contacts the inclined surface 411. The larger outer contour of the inclined surface 411 provides more redundant space for the bonding structure 323, allowing the bonding structure 323 of the drive shaft 320 to be smoothly inserted into the snap-fit ​​recess 410, thereby connecting with the gearbox 400. At this time, the drive shaft 320 is in an axially inclined position.

[0086] In some embodiments, the drive shaft 320, after being connected to the gearbox 400, has an axially tilted position and an axial position. In response to the drive shaft 320 being tilted into the snap-fit ​​recess 410, causing the bonding structure 323 to connect with the snap-fit ​​recess 410, the drive shaft 320 is in an axially tilted position, at which time the first, second, third, or fourth roller brush is mounted on or detached from the roller brush support frame 300. In response to the drive shaft 320 being inserted obliquely into the locking recess 410, the bonding structure 323 is connected to the locking recess 410, and then pushed horizontally inward toward the locking recess 410 along the axial direction, so that the drive shaft 320 is connected to the locking recess 410 in the axial direction. At this time, the drive shaft 320 is rotated to the axial position, and the first roller brush, the second roller brush, the third roller brush or the fourth roller brush is assembled in the receiving space 201, and the first roller brush, the second roller brush, the third roller brush or the fourth roller brush cannot be assembled or disassembled.

[0087] Based on the first, second, third, or fourth roller brush being assembled on the drive shaft 320, the first, second, third, or fourth roller brush can rotate synchronously with the drive shaft 320. When the drive shaft 320 is in an axially tilted position, the first, second, third, or fourth roller brush is also in an axially tilted position, but at this time, the first, second, third, or fourth roller brush cannot work normally; when the drive shaft 320 is in an axial position, the first, second, third, or fourth roller brush is also in an axial position, at which time the first, second, third, or fourth roller brush can work normally. In practical applications, when the first, second, third, or fourth roller brush is in an axially tilted position, it is easier to assemble or disassemble the first, second, third, or fourth roller brush with the drive shaft 320. The drive shaft 320 drives the first, second, third, or fourth roller brush to extend from inside the roller brush chamber 200, preventing users from getting a lot of dust on their hands when installing or removing the first, second, third, or fourth roller brush, thus improving the user experience.

[0088] In some embodiments, as shown in Figures 5 and 9, the support frame body 310 includes a support end plate 330 and a connecting rod 340, which can be a hollow connecting rod. The hollow connecting rod 340 is configured to be sleeved outside the drive shaft 320 to assist the drive shaft 320 in switching between an axial tilt position and an axial position. The number of hollow connecting rods 340 corresponds to the number of the first, second, third, or fourth roller brushes, and is used to support the first, second, third, or fourth roller brushes. One end of the hollow connecting rod 340 is connected to the support end plate 330 and extends along the axial direction of the first, second, third, or fourth roller brushes. When the drive shaft 320 is connected to the first, second, third, or fourth roller brushes, the drive shaft 320 can drive the first, second, third, or fourth roller brushes to rotate relative to the hollow connecting rod 340 to clean the operating surface.

[0089] The support end plate 330 is disposed on the side of the hollow connecting rod 340 away from the roller brush assembly 100, configured to support the roller brush assembly 100 and isolate the roller brush assembly 100 from the drive end 210, preventing entanglement on the surface of the roller brush assembly 100 from entering the drive end 210 and causing the drive end 210 to malfunction. In response to the roller brush assembly 100 being mounted on the support frame body 310, the end of the roller brush assembly 100 abuts against the support end plate 330.

[0090] In some embodiments, the support frame body 310 further includes support side plates 350 disposed on both sides of the hollow connecting rod 340, configured to support the roller brush assembly 100 when the roller brush support frame 300 is rotated to an axial position. A protruding structure 351 is provided at the root of the support side plate 350, and the protruding structure 351 is located on the side of the support frame body 310 near the drive end 210 and configured to engage with the side wall of the roller brush chamber 200. Specifically, as shown in FIG9, the roller brush chamber 200 has a limiting groove on the side near the drive end 210. The deeper the limiting groove is near the drive end 210, the easier it is to insert the support frame body 310. In response to the support frame body 310 being assembled into the roller brush chamber 200, the protruding structure 351 inserts into the limiting groove, stabilizing the position of the support frame body 310 within the roller brush chamber 200, thereby ensuring that the roller brush assembly 100 maintains a stable position within the roller brush chamber 200.

[0091] In some embodiments, as shown in FIG10, the support frame body 310 further includes a support member 360, which is an arc-shaped member disposed on the side of the support end plate 330 away from the hollow connecting rod 340.

[0092] In response to the support frame body 310 being mounted on the drive end 210, the support member 360 is connected to the roller brush chamber 200 and configured to allow the roller brush support frame 300 to rotate around the support member 360. Correspondingly, the roller brush chamber 200 has a limiting hole 203, through which the support member 360 passes rotatably connected to the drive end 210 of the roller brush chamber 200.

[0093] Specifically, the roller brush chamber 200 has two limiting holes 203 on the side facing the roller brush assembly 100, which are used to accommodate the support member 360. A through hole 204 is provided between the two limiting holes 203, and the through hole 204 is configured to allow the connecting bolt 370 to be detachably connected to the through hole 204. In response to the support frame body 310 being mounted on the drive end 210 and the support member 360 being mounted inside the limiting hole 203, the connecting bolt 370 can be passed through the through hole 204, connecting the limiting hole 203 to the support member 360. In response to the movable connection between the limiting hole 203 and the support member 360, the support frame body 310 can rotate relative to the drive end 210 with the connecting bolt 370 as the center, so that the roller brush assembly 100 can switch between an axial position and an axially tilted position.

[0094] In some embodiments, the cleaning brush head 1000 may have multiple gearboxes 400. As shown in FIG11, the gearbox 400 includes a first gearbox 421 and a second gearbox 422. The first gearbox 421 and the second gearbox 422 are respectively disposed on both sides of the roller brush chamber 200, and the first gearbox 421 and the second gearbox 422 are connected by a drive linkage 423.

[0095] Specifically, the drive assembly is located at the drive end 210 and configured to drive the first gearbox 421 to rotate, so that the drive shaft 320 of the drive end 210 drives the roller brush assembly 100 to rotate at high speed to clean the operating surface. The first gearbox 421 and the second gearbox 422 are connected by a drive linkage 423. Under the action of the drive linkage 423, the driving force generated by the first gearbox 421 is transmitted to the second gearbox 422. At this time, through the driving force provided by the first gearbox 421 and the second gearbox 422, the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush rotates clockwise or counterclockwise to clean the operating surface. The specific structure of the drive assembly is not described in detail.

[0096] It should be noted that this disclosure does not limit the driving method of the roller brush assembly 100; it can be driven by a driving component or by a gearbox 400. Furthermore, this disclosure does not specifically limit the number of gearboxes 400. There can be one, two, or even more gearboxes 400.

[0097] In some embodiments, the roller brush chamber 200 includes a dust collection channel 1100, which is located near the free end of the roller brush assembly 100. When the object to be cleaned reaches the vicinity of the free end of the roller brush assembly 100 along the spiral brush 111, the dust collection channel 1100 sucks it into the dust collection device, thereby improving cleaning efficiency.

[0098] In some embodiments, the roller brush chamber 200 further includes a locking element. When the connecting end of the roller brush assembly 100 is inserted into the roller brush chamber 200, it is rotated so that the free end of the roller brush assembly 100 enters the roller brush chamber 200. Then, the elastic element of the roller brush cover cooperates with the locking element of the roller brush chamber 200 to lock it, so that the roller brush assembly 100 is stably installed inside the cleaning brush head 1000.

[0099] A second aspect of this disclosure provides a cleaning device including the cleaning brush head 1000 provided in the first aspect of this disclosure.

[0100] The cleaning equipment described in this disclosure, such as self-propelled robots, mopping robots, vacuum cleaners, floor scrubbers, lawn mowers, etc., is not limited to these. Any cleaning equipment that can be equipped with the cleaning brush head 1000 described in this disclosure can be used.

[0101] The specific structure, working principle, and beneficial effects of the cleaning brush head and cleaning device provided in this disclosure can be referred to in any of the above embodiments, and will not be repeated here.

[0102] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0103] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A cleaning brush head, comprising: The roller brush compartment has storage space; A roller brush assembly includes at least a first roller brush, a second roller brush, a third roller brush, and a fourth roller brush. Each of the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush includes an assembly end and a free end. The assembly end is driven by a driving device. The free ends of the first roller brush and the second roller brush are disposed opposite each other and form a first gap. The free ends of the third roller brush and the fourth roller brush are disposed opposite each other and form a second gap. The first gap and the second gap at least partially overlap in the radial direction of the roller brush assembly.

2. The cleaning brush head according to claim 1, wherein, The cleaning brush head also includes a roller brush support frame, wherein the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush are fixed to or detachably mounted on the roller brush support frame.

3. The cleaning brush head according to claim 2, wherein, The roller brush support frame is connected to one end of the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush. In response to the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush rotating to an axially tilted position, the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush is assembled on the roller brush support frame or detached from the roller brush support frame.

4. The cleaning brush head according to claim 2 or 3, wherein, The roller brush chamber has at least one drive end; The roller brush support frame is disposed at the drive end of the roller brush chamber and is configured to rotate within a preset angle about the connection position with the drive end.

5. The cleaning brush head according to claim 4, wherein, One end of the first roller brush, the second roller brush, the third roller brush, and the fourth roller brush has a plug-in structure, configured to be freely plugged into and unplugged from the roller brush support frame, and rotates as the roller brush support frame rotates.

6. The cleaning brush head according to claim 5, wherein, The roller brush support frame includes: The support frame body is rotatably connected to the drive end of the roller brush chamber; The drive shaft passes through the support frame body and is connected to the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush, and is configured to drive the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush to rotate.

7. The cleaning brush head according to claim 6, wherein, The support frame body includes: Support end plate, configured to abut against the end of the roller brush; A connecting rod, substantially perpendicular to the support end plate and extending axially along the first, second, third, or fourth roller brush, is configured such that the drive shaft passes through the connecting rod and connects to the first, second, third, or fourth roller brush, and the drive shaft is free to rotate within the connecting rod.

8. The cleaning brush head according to claim 7, wherein, The support frame body also includes: Support side plates are disposed on both sides of the connecting rod to support the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush.

9. The cleaning brush head according to claim 8, wherein, The support frame body also includes: A protruding structure is provided at the root of the support side plate and is configured to engage with the side wall of the roller brush chamber.

10. The cleaning brush head according to any one of claims 7 to 9, wherein, The support frame body also includes: A support member is disposed on the side of the support end plate away from the connecting rod. The support member is connected to the roller brush chamber and configured to allow the roller brush support frame to rotate around the support member.

11. The cleaning brush head according to claim 10, wherein, The support component is an arc-shaped component.

12. The cleaning brush head according to claim 11, wherein, The roller brush chamber has a limiting hole, and the support member passes through the limiting hole and is rotatably connected to the drive end of the roller brush chamber.

13. The cleaning brush head according to any one of claims 6 to 9, wherein, The end of the drive shaft away from the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush has a bonding structure and is configured to be connected to the drive end of the roller brush chamber; the end of the drive shaft inserted into the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush has a fastening structure and is configured to be fastened to the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush.

14. The cleaning brush head according to claim 13, wherein, The end of the fastening structure has at least one claw configured to engage with a locking structure within the roller brush.

15. The cleaning brush head according to claim 14, wherein, The plug-in structure has a stepped portion, which causes the plug-in structure to have different inner diameters.

16. The cleaning brush head according to claim 15, wherein, The different inner diameter plug-in structures are used to accommodate the connecting rods of the support frame body and the fastening structures.

17. The cleaning brush head according to any one of claims 14 to 16, wherein, The cleaning brush head also includes: A gearbox is disposed at the drive end of the roller brush chamber. The output shaft end of the gearbox has a snap-fit ​​recess. After the snap-fit ​​recess snaps into the bonding structure, it drives the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush to rotate.

18. The cleaning brush head according to claim 17, wherein, The outer edge of the snap-fit ​​recess has an inclined surface away from the axis, and the outer contour of the inclined surface is larger than the inner contour of the snap-fit ​​recess.

19. The cleaning brush head according to claim 17, wherein, The gearbox includes a first gearbox and a second gearbox, which are connected by a drive linkage.

20. The cleaning brush head according to any one of claims 1 to 5, 7 to 9, 11, 14 to 16, 18 to 19, wherein, The first roller brush, the second roller brush, the third roller brush, or the fourth roller brush further includes a rubber brush and / or a bristle brush, and in response to the rotation of the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush, the object to be cleaned moves along the rubber brush and / or bristle brush from the assembly end to the free end.

21. The cleaning brush head according to claim 20, wherein, The roller brush chamber includes a dust suction port, which is located on one side near the free end of the first roller brush, the second roller brush, the third roller brush, or the fourth roller brush.

22. The cleaning brush head according to claim 9, wherein, The roller brush chamber has a limiting groove on the side near the drive end, configured to accommodate the protruding structure.

23. The cleaning brush head according to any one of the preceding claims, wherein, The first roller brush includes a first brush component, the second roller brush includes a second brush component, the third roller brush includes a third brush component, and the fourth roller brush includes a fourth brush component. At least two of the first brush component, the second brush component, the third brush component, and the fourth brush component have the same or different structures.

24. A cleaning device, characterized in that, include: The cleaning brush head according to any one of claims 1 to 23.

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