CN114145674B

CN114145674B - Round brush subassembly and cleaning device

Info

Publication number: CN114145674B
Application number: CN202111489554.9A
Authority: CN
Inventors: 章孝顺; 曹雪涛; 魏敏; 王亚坤
Original assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2023-03-28
Anticipated expiration: 2041-12-08
Also published as: CN114145674A

Abstract

The invention provides a rolling brush component and cleaning equipment, wherein the rolling brush component comprises: the roller is internally provided with a cavity extending along the axial direction and is provided with an opening communicated with the cavity; a first brush assembly extending in the axial direction and located in the opening in a circumferential direction of the drum, the first brush assembly being reciprocatable in a radial direction of the drum; the transmission device is connected with the first brush component to drive the first brush component to do reciprocating motion in the radial direction, at least part of the transmission device protrudes out of the roller in a first direction, and a set included angle is formed between the first direction and the axial direction.

Description

Round brush subassembly and cleaning device

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a rolling brush assembly and cleaning equipment.

Background

In order to meet the cleaning requirements of different working floors, a conventional dust collector is usually provided with a plurality of rolling brushes which can be replaced by a user at will during the use process. At present, when a dust collector is switched between two working scenes, namely a floor and a carpet, a user needs to manually replace a brush, and the switching mode is complicated.

Disclosure of Invention

In view of this, the present invention provides a rolling brush assembly and a cleaning apparatus, so as to solve the technical problem of how to simplify the brush switching.

The technical scheme of the invention is realized as follows:

an embodiment of the present invention provides a round brush assembly, including: the roller is internally provided with a cavity extending along the axial direction and is provided with an opening communicated with the cavity; a first brush assembly extending in the axial direction and located in the opening in a circumferential direction of the drum, the first brush assembly being reciprocatable in a radial direction of the drum; the transmission device is connected with the first brush component to drive the first brush component to do reciprocating motion in the radial direction, at least part of the transmission device protrudes out of the roller in a first direction, and a set included angle is formed between the first direction and the axial direction.

In some embodiments, the transmission comprises: a pedal mechanism, one part of which protrudes from the roller in the first direction and the other part of which extends along the axial direction; the telescopic mechanism is positioned in the cavity, axially extends and is used for axially moving along with the movement of the pedal mechanism, and the first brush assembly is connected with the telescopic mechanism and can move relative to the telescopic mechanism.

In some embodiments, the pedal mechanism comprises: a first sub-mechanism extending to a first end of the pedal mechanism, the first sub-mechanism being translatable in the first direction; and the second sub-mechanism extends to the second end of the pedal mechanism and is used for moving in the axial direction along with the translation of the first sub-mechanism.

In some embodiments, the first sub-mechanism comprises: a pressing rod extending from the first end to an abutting end against which the second sub-mechanism can abut; the first elastic piece is abutted to one side, close to the roller, of the pressure lever in the first direction and can reciprocate in the first direction; the second sub-mechanism comprises: one end of the first connecting rod is fixed relative to the roller in the axial direction, and the other end of the first connecting rod is a hinged end and is abutted against the abutting end of the pressure lever; a second link hinged to the first link and extending to the second end.

In some embodiments, the second sub-mechanism further comprises: the ejector rod extends along the axial direction, and one end of the ejector rod is hinged with the second end of the second connecting rod; the one end of first connecting rod with the cassette butt, the cassette is equipped with along axial blind hole, the blind hole with the cavity intercommunication, the other end of ejector pin can be in axial motion in the blind hole.

In some embodiments, the first sub-mechanism further comprises: the pedal piece is connected to one side, far away from the roller, of the pressure rod in the first direction.

In some embodiments, the first brush assembly comprises a brush holder disposed in the cavity and extending in the axial direction, wherein a side of the brush holder near the opening is provided with first bristles; the convex block is arranged on one side, far away from the opening, of the brush frame and movably connected with the transmission device.

In some embodiments, the telescoping mechanism comprises: the positioning assembly is arranged close to the second end of the pedal mechanism, can move along the axial direction under the action of the pedal mechanism and is positioned at a first position and a second position in the axial direction; the moving assembly extends along the axial direction and is abutted with the positioning assembly so as to move along the axial direction along with the positioning assembly; wherein the first brush component is movably connected with the moving component; and the second elastic piece is arranged between one end of the moving assembly, which is far away from the positioning assembly, and the roller and is used for pushing the moving assembly to move reversely along the axial direction.

In some embodiments, the positioning assembly comprises: the bearing seat is hollow, the bearing seat is provided with a third end and a fourth end which are opposite in the axial direction, the fourth end is close to the moving assembly relative to the third end, first bulges extending along the axial direction are arranged on the inner wall of the bearing seat and are arranged at intervals in the circumferential direction, a first sliding groove is formed between every two adjacent first bulges, and a first inclined plane is arranged on one side, close to the fourth end, of each first bulge; the sliding column extends along the axial direction and is at least partially arranged on one side, close to the fourth end, in the bearing seat, a plurality of second protrusions are arranged at intervals in the circumferential direction, and a second inclined plane is arranged on one side, close to the third end, of each second protrusion; the pressing key is arranged on one side of the third end, the pressing key is close to one end of the fourth end and is provided with a third inclined surface, the third inclined surface is matched with the second inclined surface, a plurality of third protrusions are arranged on the pressing key at intervals in the circumferential direction, the third protrusions can slide in the axial direction relative to the first sliding groove, and therefore the second inclined surface on the second protrusions is driven to be matched with the first sliding groove and the first inclined surface in turn.

In some embodiments, the moving assembly comprises: the support is axially extended, a second sliding groove is formed in the surface of the support, one end of the support is abutted to the second elastic piece, the other end of the support is abutted to the sliding column, and the protruding block can move along the second sliding groove.

In some embodiments, the extending direction of the second sliding groove is disposed at an acute angle to the axial direction, and the first brush assembly is movable along the second sliding groove to extend and retract in the radial direction.

In some embodiments, the roller brush assembly further comprises: the second brush hair is fixed on the surface of the roller along the axial direction; wherein, under the state that the first brush component protrudes out of the opening, the first brush component protrudes out of the second brush bristles in the radial direction of the roller.

An embodiment of the present invention provides a cleaning apparatus, including: a base body; a roller brush assembly according to any preceding claim; and the driving device is used for driving the rolling brush component to rotate around the axial direction relative to the base body.

The rolling brush assembly comprises a roller, a first brush assembly and a transmission device, wherein a cavity extending along the axial direction and an opening communicated with the cavity are formed in the roller, the first brush assembly extends along the axial direction and is located in the opening in the circumferential direction of the roller, and the driving device can drive the first brush assembly to reciprocate in the radial direction. Wherein the transmission device at least partially protrudes out of the roller in a first direction, which is perpendicular to the axial direction. According to the embodiment of the invention, the transmission device is arranged to protrude out of the roller in the direction vertical to the axial direction, so that a user can convert the force vertical to the axial direction into the axial force and drive the first brush assembly to realize the radial extension and contraction of the first brush assembly. According to the embodiment of the invention, the force vertical to the axial direction can be applied in a foot-stepping mode, so that the switching of the two working states of the first brush component is realized, the switching mode is simple, and the convenience of use of a user is improved.

Drawings

FIG. 1 is a schematic view of a cleaning apparatus according to an embodiment of the present invention;

FIG. 2a is a schematic structural diagram of a roller brush assembly according to an embodiment of the present invention;

FIG. 2b is an enlarged view of the transmission 4 of FIG. 2 a;

FIG. 3 is an exploded view of a roller brush assembly according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of the portion B in FIG. 3;

FIG. 6 is a schematic structural diagram of a bearing seat according to an embodiment of the present invention;

FIG. 7 is a schematic view of a positioning assembly in a first position according to an embodiment of the present invention;

FIG. 8 is a state diagram illustrating a switching process of a positioning component according to an embodiment of the present invention;

FIG. 9 is a schematic view of a positioning assembly in a second position according to an embodiment of the present invention;

FIG. 10 is a schematic view of a first brush assembly in accordance with the present invention;

fig. 11 is a schematic view of the construction of a drum embodying the present invention.

Description of reference numerals:

10. a roll brush assembly; 2. a drum; 21. a cavity; 22. an opening; 3. a first brush assembly; 31. a brush holder; 32. a bump; 311. a first bristle; 4. a transmission device; 41. a pedal mechanism; 411. a first sub-mechanism; 4111. a pressure lever; 4112. a first elastic member; 4113. a foot pedal; 412. a second sub-mechanism; 4121. a first link; 4122. a second link; 4123. a top rod; 4124. a card holder; 413. a first end; 414. a second end; 415. a butt joint end; 416. a hinged end; 42. a telescoping mechanism; 421. a positioning assembly; 4211. a bearing seat; 4211a, a third end; 4211b, a fourth end; 4211c, inner wall;

4211d, a first protrusion; 4211e, a first chute; 4211f, a first bevel; 4212. a traveler;

4212a, a second protrusion; 4212b, a second bevel; 4213. pressing a key; 4213a, a third bevel;

4213b, a third bump; 4124. a card holder; 4125. blind holes; 422. a moving assembly; 4221. a support; 4221a, a second chute; 423. a second elastic member; 6. a base body; 7. a drive device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and aspects can be formed by combining different features. In order to avoid unnecessary repetition, various possible combinations of the specific features of the invention will not be described further.

In the following description, references to the term "first/second" - "merely distinguish between different objects and do not indicate that there is an identity or relationship between the objects. It should be understood that the references to the orientation descriptions "above", "below", "outside" and "inside" are all the orientations in the normal use state, and the "left" and "right" directions indicate the left and right directions indicated in the specific corresponding schematic diagrams, and may or may not be the left and right directions in the normal use state. The XYZ coordinate system is an absolute coordinate in a normal use state. The orientation description referred to is "positive" in the direction indicated by the arrow in the coordinate system and "negative" in the opposite direction indicated by the arrow in the coordinate system.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. "plurality" means greater than or equal to two.

The embodiment of the invention provides a rolling brush assembly which can be applied to cleaning equipment such as a dust collector, a sweeper, a mopping machine, a sweeping and mopping integrated machine and the like. It should be noted that the type of the application scenario of the embodiment of the present invention does not limit the structure of the rolling brush assembly of the embodiment of the present invention.

As shown in fig. 1, the following description will be made of the application of the roller brush assembly to a vacuum cleaner:

the front side bottom of the base body 6 of the dust collector is opened to form a cleaning opening in the front side bottom area of the base body 6, the bristles of the rolling brush assembly 10 can extend out of the cleaning opening, and the bristles can clean a surface to be cleaned, for example, the surface to be cleaned can be the ground, so that the bristles can sweep up sundries, hair and the like on the ground, and the raised sundries and hair can be absorbed and stored by the dust collection assembly of the dust collector, so that the cleaning effect on the ground is realized.

An embodiment of the present invention provides a rolling brush assembly, and as shown in fig. 1 and 2a, the rolling brush assembly 10 includes a roller 2, a first brush assembly 3 and a transmission device 4. The drum 2 is provided with a cavity 21 extending along the axial direction, it should be noted that the drum 2 in the embodiment of the present invention may have a regular cylindrical structure such as a cylindrical structure and a prismatic structure, or the drum 2 may have an irregular cylindrical structure, and the embodiment of the present invention is not limited to the specific shape of the drum 2 as long as the cavity 21 in the drum 2 extends in the axial direction of the drum 2. In the case of a regular cylindrical structure of the drum 2, the axial direction of the drum 2 represents the direction of extension of the axis of symmetry of the drum 2; in the case of an irregular structure of the drum 2, the axial direction of the drum 2 can be approximately considered as the longitudinal extension direction. As shown in fig. 2a, the drum 2 is provided with openings 22 communicating with the cavity 21, that is, the openings 22 can communicate with both the inside and the outside of the cavity 21.

As shown in fig. 2a, the first brush assembly 3 extends along the axial direction and is located in the opening 22 in the circumferential direction of the drum 2, and it should be noted that the extension of the first brush assembly 3 along the axial direction (x direction shown in fig. 2 a) means that the main components of the first brush assembly 3 extend along the axial direction, so that the overall structure of the first brush assembly 3 extends along the axial direction substantially, and does not mean that all the structures of the first brush assembly 3 extend along the axial direction. The first brush assembly 3 is located circumferentially within the opening 22, it being understood that, viewed in a direction around the axis of the drum 2, the first brush assembly 3 is located within the edge of the opening 22, i.e. the edge of the opening 22 defines the circumferential position of the first brush assembly, such that it cannot rotate circumferentially relative to the drum 2 or the extent of rotation is limited; the first brush assembly 3 is movable radially relative to the drum 2, i.e. outwardly and inwardly relative to the drum 2 to effect telescopic movement of the first brush assembly 3 relative to the opening 22.

As shown in fig. 2a, the transmission device 4 at least partially protrudes from the drum 2 in a first direction (any direction perpendicular to the x direction shown in fig. 2 a), and the first direction forms a set included angle with the axial direction (the x direction shown in fig. 2 a), which may be an acute angle, an obtuse angle or a right angle, but the included angle cannot be zero degree, wherein the first direction is not limited to a straight direction, and may be a set of directions forming a set included angle with the axial direction, or a set of directions perpendicular to the axial direction. The embodiment of the present invention does not limit the specific angle of the first direction, and by limiting the relationship between the first direction and the axial direction for limiting the relationship between the transmission device 4 and the drum 2 in the circumferential direction, that is, the transmission device 4 protrudes out of the drum 2 in the radial direction of the drum 2, rather than protruding out of the drum 2 in the axial direction of the drum 2, the user can apply force to the transmission device 4. The transmission means 4 may partially extend into the cavity 21 so that the transmission means 4 is connected to the first brush assembly 3, and the first brush assembly 3 is driven by the transmission means 4 to reciprocate in a radial direction, which is an inner and outer direction, perpendicular to the axial direction. That is, during the radial movement of the first brush assembly 3, at least a portion of the first brush assembly 3 may protrude from the outer surface of the drum 2 relative to the opening 22, and the first brush assembly 3 may be completely retracted into the cavity 21.

The embodiment of the invention provides a rolling brush assembly, which comprises a roller, a first brush assembly and a transmission device, wherein a cavity extending along the axial direction and an opening communicated with the cavity are formed in the roller, the first brush assembly extends along the axial direction and is positioned in the opening in the circumferential direction of the roller, and the driving device can drive the first brush assembly to reciprocate in the radial direction. Wherein the transmission device at least partially protrudes out of the roller in a first direction, which is perpendicular to the axial direction. According to the embodiment of the invention, the transmission device is arranged to protrude out of the roller in the direction vertical to the axial direction, so that a user can convert the force vertical to the axial direction into the axial force and drive the first brush assembly to realize the radial expansion of the first brush assembly. According to the embodiment of the invention, the force vertical to the axial direction can be applied in a foot-stepping mode, the switching between the two working states of the first brush component is realized, the switching mode is simple, and the convenience degree of use of a user is improved

In some embodiments, as shown in connection with fig. 2a and 3, the transmission 4 comprises a pedal mechanism 41 and a telescoping mechanism 42. As shown in fig. 2a, the pedal mechanism 41 is at least partially located outside the cavity 21. The pedal mechanism 41 may be divided into two parts, one of which protrudes from the drum 2 in a first direction (any direction perpendicular to the x-direction) and the other of which extends in the axial direction (the x-direction in fig. 2 a). It should be noted that the first direction is used to indicate the radial direction of the drum 2, but the radial direction of the drum 2 is not limited to a straight line direction, and may be a set of directions perpendicular to the axial direction of the drum, and the radial direction may be any straight line on any plane perpendicular to the axial direction. It will be appreciated that the portion of the pedal mechanism 41 that projects from the drum in the first direction in accordance with embodiments of the present invention means that the pedal mechanism 41 is located radially outside the cavity and that the pedal mechanism 41 does not project from the drum 2 in the axial direction of the drum 2. The other part of the pedal mechanism 41 extends along the axial direction, and the embodiment of the present invention does not limit the position relationship between the other part of the pedal mechanism 41 extending along the axial direction and the cavity 21, and the part of the pedal mechanism 41 may be located inside the cavity 21, outside the cavity 21, or partly inside the cavity 21 and partly outside the cavity 21.

As shown in fig. 3, the telescoping mechanism 42 is located within the cavity 21. And the telescopic mechanism 42 extends along the axial direction (the left-right direction shown in fig. 3), it should be noted that the telescopic mechanism 42 may include a plurality of components, and the telescopic mechanism 42 extending along the axial direction described in the embodiment of the present invention refers to the main components or the whole telescopic mechanism 42 extending along the axial direction, and does not mean that all the components in the telescopic mechanism 42 need to extend along the axial direction. The telescopic mechanism 42 is configured to move in an axial direction (left and right directions shown in fig. 3) along with the movement of the pedal mechanism 41, and it can be understood that, with reference to fig. 2a, at least a portion of the pedal mechanism 41 protrudes out of the drum 2 in the first direction, a portion of the pedal mechanism 41 protruding out of the drum 2 can be configured to receive an external driving force (for example, a pressure applied by a user on the pedal mechanism), the pedal mechanism 41 can transmit the driving force to the telescopic mechanism 42, and since the pedal mechanism 41 does not extend in the axial direction, the driving force transmitted by the pedal mechanism 41 is not an axial force, and the pedal mechanism 41 converts the non-axial driving force into an axial acting force and then transmits the axial acting force to the telescopic mechanism 42. The extension mechanism 42 can convert the axial force into a radial driving force, and the extension mechanism 42 is connected to the first brush assembly 3, so that the extension mechanism 42 drives the first brush assembly 3 to move in a radial direction (up and down direction shown in fig. 3).

According to the embodiment of the invention, the transmission device is arranged into the pedal mechanism and the telescopic mechanism, the pedal mechanism can convert the acting force in the first direction, namely the radial direction of the roller, into the acting force in the axial direction of the roller to drive the telescopic mechanism to move in the axial direction, and the telescopic mechanism can convert the axial acting force into the radial acting force to drive the first brush assembly to move in the radial direction relative to the roller.

In some embodiments, as shown in fig. 2a, the pedal mechanism 41 comprises a first sub-mechanism 411 and a second sub-mechanism 412. The first sub-mechanism 411 extends to a first end 413 of the pedal mechanism 41, the first end 413 being indicative of an area of the pedal mechanism 41 that is remote from the cavity 21. The first sub-mechanism 411 can translate in a first direction (radial direction of the roller 2), the first sub-mechanism 411 is located outside the cavity 21, and the first sub-mechanism 411 is used for receiving external driving force and can move in parallel in the first direction relative to the roller 2 under the action of the driving force. As shown in fig. 2a, the second sub-mechanism 412 extends to a second end 414 of the pedal mechanism 41, and the second sub-mechanism 412 is configured to move in an axial direction (x direction shown in fig. 2 a) with the translation of the first sub-mechanism 411. It should be noted that, the embodiment of the present invention does not limit the specific form of the first sub-mechanism 411 and the second sub-mechanism 412, for example, the first sub-mechanism 411 may be a pressure air pump device, the second sub-mechanism 412 may be a telescopic device, the pressure air pump device is connected to the telescopic device, and when the pressure air pump device is subjected to pressure along the first direction, air flow inside the pressure air pump device drives the second sub-mechanism to move in the axial direction. The types of the first sub-mechanism 411 and the second sub-mechanism 412 in the embodiment of the present invention include, but are not limited to, the above listed forms, as long as the first sub-mechanism 411 can transmit the force in the first direction to the second sub-mechanism 412, and the second sub-mechanism 412 can convert the force in the first direction into the force in the axial direction (the x direction shown in fig. 2 a).

According to the embodiment of the invention, the pedal mechanism is arranged into the first sub-mechanism and the second sub-mechanism, the first sub-mechanism is used for receiving the acting force in the first direction, and the second sub-mechanism converts the acting force in the first direction into the axial acting force. The transmission step is clear, and the transmission process is reliable, has improved pedal mechanism's the smooth degree of trampling, has improved the comfort level that the user switched the operating condition of first brush subassembly in the round brush subassembly.

In some embodiments, as shown in fig. 2a and 2b, the first sub-mechanism 411 comprises a pressure rod 4111 and a first resilient member 4112. The pressing rod 4111 extends from the first end 413 to an abutting end 415 against which the second sub-mechanism 412 can abut; it should be noted that the first end 413 and the abutting end 415 of the pressing rod 4111 can be regarded as two relatively distant ends of the pressing rod 4111, the first end 413 is far away from the cavity 21, and the abutting end 415 is close to the cavity 21 relative to the first end 413. The pressing rod 4111 may have a regular structure or an irregular structure. The first elastic member 4112 abuts on one side (the lower side in the z direction shown in fig. 2 b) of the pressure lever 4111 close to the roller 2 in the first direction, which represents the radial direction of the roller 2 in the embodiment of the present invention, and may be the z direction shown in fig. 2b or the y direction shown in fig. 2 b. In a normal use state of the roller brush assembly 10, the first sub-mechanism 411 has two opposite sides, one side (a lower side in the z direction shown in fig. 2 b) is close to the roller 2, the other side (an upper side in the z direction shown in fig. 2 b) is away from the roller 2, one end (an upper end in the z direction shown in fig. 2 b) of the first elastic member 4112 abuts against one side (a lower side in the z direction shown in fig. 2 b) of the pressing rod 4111 close to the roller 2, wherein the first elastic member 4112 may have a connection relationship with the pressing rod 4111, or may not have a connection relationship, as long as the first elastic member 4112 can drive the pressing rod 4111 to move upward in the z direction. The other end (the lower end in the z direction shown in fig. 2 b) of the first elastic member 4112 can abut against a base or other parts of the vacuum cleaner. The first resilient member 4112 is reciprocally movable in a first direction (z direction shown in fig. 2 b), wherein the first resilient member 4112 is retractable in a length direction of itself, and by arranging the length direction of the first resilient member 4112 in the first direction (z direction shown in fig. 2 b), the first resilient member 4112 can deform in the first direction under the first direction force applied by the pressing rod 4111, so that the first resilient member 4112 can drive the pressing rod 4111 to translate in the first direction. It should be noted that, in the embodiment of the present invention, the first resilient member 4112 includes, but is not limited to, the springs and the elastic bodies listed in the embodiment of the present invention, as long as the first resilient member 4112 can reciprocate in the first direction under the action of an external force.

As shown in fig. 2a and 2b, the second sub-mechanism 412 includes a first link 4121 and a second link 4122. One end (left end in x direction shown in fig. 2 b) of the first link 4121 is fixed in the axial direction (x direction shown in fig. 2 b) relative to the drum 2, it should be noted that the first link 4121 and the drum 2 may not have a direct connection relationship, and one end of the first link 4121 according to the embodiment of the present invention is fixed in the axial direction relative to the drum 2 to indicate a relative position state of the first link 4121 and the drum 2 in the axial direction, that is, the drum 2 may rotate around its own axial direction (x direction shown in fig. 2 b), but the relative position of the drum 2 in the axial direction does not change. One end (left end in x direction shown in fig. 2 b) of the first link 4121 may be connected to a part of the cleaner other than the drum, which is fixed at least in the axial direction, so that the one end of the first link 4121 is fixed in the axial direction with respect to the drum 2. The other end (right end in the x direction in fig. 2 b) of the first link 4121 is a hinge end 416. One end (left end of the second link in x direction in fig. 2 b) of the second link 4122 is hinged to the hinged end 416 of the first link 4121, and the other end (right end of the second link in x direction in fig. 2 b) of the second link 4122 extends to the second end 414. The abutting end 415 of the pressing rod 4111 abuts against the hinged end 416 of the first link 4121, so that the acting force of the pressing rod 4111 can be transmitted to the first and second links 4122 through the abutting end 415.

In some embodiments, as shown in fig. 2b, the first sub-mechanism 411 further comprises a foot member 4113. The step member 4113 is connected to a side of the pressing rod 4111 away from the drum 2 in the first direction (z direction in fig. 2 b). The step members 4113 may be configured as flat plate members or as members with protrusions on the surface, it should be noted that the extending direction of the step members 4113 may be parallel to the horizontal direction in the actual use state, and the extending direction of the step members 4113 may also be inclined with respect to the horizontal direction in the actual use state. According to the embodiment of the invention, the pedal piece is arranged on the pressure rod, so that the stress area between the foot of the user and the pedal mechanism can be increased, and the comfort level of pedaling of the user is improved.

In some embodiments, as shown in conjunction with fig. 2 a-4, the second sub-mechanism 412 further comprises a ram 4123 and a cartridge 4124. The post 4123 extends axially, and one end (left end in fig. 4) of the post 4123 is hinged to the second end 414 of the second link 4122. The other end (right end in fig. 4) of the jack 4123 is located between the first link 4121 and the second link 4122 in the axial direction. One end (right end shown in fig. 4) of the first link 4121 abuts against the holder 4124, wherein the abutting means abutting connection, it can be understood that one end (right end shown in fig. 4) of the first link 4121 is fixed relative to the holder 4124, and the other end (left end shown in fig. 4) of the first link 4121 is a hinged end 416 (see fig. 2 b). The holder 4124 is provided with a blind hole 4125 in the axial direction, the blind hole 4125 communicates with the cavity 21, and the other end (the right end in fig. 4) of the ejector 4123 is axially movable in the blind hole 4125. As shown in fig. 2b, the second link 4122 can rotate relative to the first link 4121, so that the included angle between the second link 4122 and the first link 4121 is changed, thereby changing the position of the second end 414 of the second link 4122 in the axial direction (x direction shown in fig. 2 b), and one end (left end shown in fig. 4) of the top rod 4123 is rotatably connected to the second end 414 of the second link 4122, so that the second end 414 can drive the top rod 4123 to move in the axial direction under the condition that the second end 414 moves in the axial direction. The top rod 4123 is axially movable relative to the blind hole 4125 due to the limitation of the top rod 4123 circumferentially received by the blind hole 4125, but the top rod 4123 is not radially movable relative to the blind hole 4125, and the top rod 4123 may be provided as a rigid member so that the second end 414 connected to the top rod 4123 can only axially move following the top rod 4123. According to the embodiment of the invention, the ejector rod and the clamping seat are arranged on the second sub mechanism, so that the displacement of the second end in the second connecting rod is limited on the same straight line (axial line), and the transmission stability of the second sub mechanism is improved.

In some embodiments, as shown in fig. 3, telescoping mechanism 42 includes a positioning assembly 421 and a moving assembly 422. The positioning assembly 421 is disposed near the second end 414 of the pedal mechanism in the axial direction (left-right direction shown in fig. 3), and the positioning assembly 421 can move in the axial direction (left-right direction shown in fig. 3) under the action of the pedal mechanism and can be positioned at the first position and the second position in the axial direction. Wherein, in the state of the first position, the first brush component 3 partially protrudes out of the outer surface of the roller 2; in the second position, the first brush assembly 3 is fully retracted within the cavity 21. The moving component 422 extends along the axial direction, and one end (the right end shown in fig. 3) of the moving component 422 abuts against the positioning component 421 to move along with the positioning component 421 along the axial direction. It should be noted that abutting means that one end of the moving component 422 may have a contact relationship with the positioning component 421 but not have a connection relationship, and of course, there may also be a connection relationship between the moving component 422 and the positioning component 421. Regardless of whether there is a connection relationship between the moving component 422 and the positioning component 421, as long as one end of the moving component 422 contacts one end of the positioning component 421, the positioning component 421 moves in the axial positive direction (leftward in fig. 3) to drive the moving component 422 to move in the axial direction, or the moving component 422 moves in the axial negative direction (rightward in fig. 3) to drive the positioning component 421 to move in the axial direction. In the embodiment of the present invention, the first brush assembly 3 is movably connected to the moving assembly 422, and in the case that the moving assembly 422 moves in the axial direction relative to the roller 2, the moving assembly 422 can move in the radial forward direction (to the left in the axial direction shown in fig. 3) relative to the first brush assembly 3, during which the moving assembly 422 presses the second elastic member 423 disposed between one end (the left end in fig. 3) of the moving assembly 422 far from the positioning assembly 421 and the roller 2; in the case that the positioning assembly 421 moves to the second position, the restoring force of the second elastic member 423 pushes the moving assembly 422 to move in the opposite axial direction (axially to the right in fig. 3).

According to the embodiment of the invention, the telescopic mechanism is arranged into the positioning component and the moving component, the positioning component can be positioned at the first position and the second position in the axial direction, and the moving component can be fixed in the first position and the second position respectively under the action of the positioning component, so that the first brush component is driven to be positioned in the two states of extending out of the roller and retracting back into the roller respectively.

In some embodiments, as shown in fig. 5, the positioning assembly 421 includes a bearing seat 4211, a strut 4212, and a push key 4213. Referring to fig. 6, the bearing seat 4211 is hollow, the bearing seat 4211 has a third end 4211a and a fourth end 4211b opposite to each other in the axial direction (left-right direction shown in fig. 6), the fourth end 4211b is close to the moving assembly relative to the third end 4211a, an inner wall 4211c of the bearing seat 4211 is provided with first protrusions 4211d extending in the axial direction (left-right direction shown in fig. 6), the first protrusions 4211d are arranged at intervals in the circumferential direction, a first sliding groove 4211e is formed between adjacent first protrusions 4211d, and a first inclined surface 4211f is arranged on one side of each first protrusion 4211d close to the fourth end 4211 b. Wherein the first inclined surface 4211f is provided as a concave surface.

As shown in fig. 5, the spool 4212 extends in an axial direction (left-right direction in fig. 5), and the spool 4212 is at least partially disposed in the bearing housing 4211 on a side close to the fourth end 4211b, and the spool 4212 may partially protrude in the axial direction with respect to the fourth end 4211b of the bearing housing 4211. A plurality of second protrusions 4212a are arranged on the sliding column 4212 at intervals in the circumferential direction, a second inclined surface 4212b is arranged on one side, close to the third end 4211a, of each second protrusion 4212a, and in a first position state, the second inclined surfaces 4212b of the second protrusions 4212a can be clamped on the first inclined surfaces 4211f of the bearing seat 4211; in the state of the second position, the second boss 4212a can slide into the first chute 4211e of the bearing housing 4211.

As shown in fig. 5, the pressing key 4213 extends axially (left and right direction shown in fig. 5) and is at least partially disposed inside the bearing seat 4211 at a side close to the third end 4211a relative to the sliding column 4212, one end of the pressing key 4213 close to the fourth end 4211b is provided with a third inclined surface 4213a, the third inclined surface 4213a can be engaged with the second inclined surface 4212b, and the pressing key 4213 can drive the second inclined surface 4212b to move axially through the third inclined surface 4213a, so as to drive the second inclined surface 4212b to be engaged with the first inclined surface 4211f and the first sliding groove 4211e in turn. The pressing key 4213 is provided with a plurality of third protrusions 4213b at intervals in the circumferential direction, the pressing key 4213 is in sliding fit with the bearing seat 4211e through the third protrusions 4213b, the pressing key 4213 is fixed in the circumferential direction relative to the bearing seat 4211, and the third protrusions 4213b can slide in the axial direction (left and right directions shown in fig. 5) relative to the first sliding groove 4211e so as to drive the second inclined surfaces 4212b on the second protrusions 4212a to be matched with the first sliding grooves 4211e and the first inclined surfaces 4211f in turn.

Fig. 7 is a schematic view showing a state in which the transmission is in the first position in the axial direction, fig. 8 is a schematic view showing a state in which the pedal mechanism is subjected to an external force, and fig. 9 is a schematic view showing a state in which the transmission is in the second position in the axial direction. During the process of switching the transmission device from the second position to the first position, as shown in fig. 3 and 8, when the pressing rod 4111 is subjected to an external force, the pressing rod 4111 moves in a first direction toward the axis of the roller 2, and during this process, the first elastic member 4112 is pressed and deformed by the force of the pressing rod 4111; the hinged end 416 of the first link 4121 is subjected to a force in the direction of approaching the axis by the pressure rod 4111, one end of the first link 4121 is fixed relative to the roller 2 in the axial direction, the second link 4122 rotates relative to the hinged end 416 of the first link 4121, so that the included angle θ between the first link 4121 and the second link 4122 is increased, the second end 414 of the second link 4122 pushes the push key 4213 to move in the forward direction (leftward in fig. 8), and the third inclined surface 4213a of the push key 4213 is engaged with the second inclined surface 4212b of the strut 4212, so that the third inclined surface 4213a pushes the second inclined surface 4212b to move in the forward direction (leftward in fig. 8) in the axial direction; as shown in fig. 7, until the second ramp 4212b moves to a position where the first ramp 4211f is located in the axial bearing seat 4211. The second inclined surface 4212b is matched with the first inclined surface 4211f, and external force on the pressure rod disappears, so that the second inclined surface 4212b is limited at the first inclined surface 4211f, and the positioning of the positioning assembly at the first position is realized.

As shown in fig. 7, in the first position, the hinge end 416 of the first link 4121 is not acted by the pressing rod, and the first link 4121 is restored to the acute angle θ with the second link 4122; the second inclined surface 4212b is limited in the recess of the first inclined surface 4211f, and the bearing seat 4211 abuts against the second inclined surface 4212b, so that the sliding column 4212 cannot move in the axial direction reversely (to the right in fig. 8), and the positioning assembly is positioned at the first position; the external force applied to the pedal mechanism may be an instant force, that is, after the second inclined surface 4212b is engaged with the first inclined surface 4211f, the external force disappears, the restoring force of the first elastic member 4112 drives the pressing rod 4111 to move in a direction away from the drum 2 in the first direction, the force applied to the pressing rod 4111 by the hinged end 416 of the first link 4121 decreases until the hinged end 416 of the first link 4121 is not subjected to the force of the pressing rod 4111, in this process, the pressing rod drives the second end 414 of the second link 4122 to move in a direction close to the first link 4121, the second link 4122 can restore to an initial position relative to the first link 4121, and the included angle θ between the first link 4121 and the second link 4122 gradually decreases to an initial angle. In the process, the push button 4213 follows the second end 414 of the second link 4122 in the negative axial direction (rightward in fig. 7). The second ramp 4212b always engages the first ramp 4211f without being acted upon by an axial force, such that the spool 4212 is always maintained in the axial first position.

Fig. 9 shows the positioning assembly 421 in a second position in the axial direction. During the switching of the positioning assembly from the first position to the second position, the transmission passes through the states of fig. 7, 8 to 9 in sequence. Fig. 7 is a state where the positioning assembly is in the first position, with the second ramp 4212b of the strut 4212 abutting the first ramp 4211f of the bearing seat 4211. As shown in fig. 8, when a user applies an external force to the pressing rod, the pressing rod transmits the force to the hinged end 416 of the first link 4121, the second link 4122 rotates relative to the first link 4121, so that the second end 414 of the second link 4122 moves in the axial positive direction (leftward as shown in fig. 8), the second end 414 pushes the push key 4213 and the strut 4212 to move in the axial positive direction until the second inclined surface 4212b of the second protrusion 4212a in the strut 4212 moves along the first inclined surface 4211f into the adjacent first sliding slot 4211e, at which point, as shown in fig. 9, the external force disappears, the pressing rod drives the second end 414 to move in the axial negative direction, the push key 4213 and the strut 4212 move in the axial negative direction (rightward as shown in fig. 9) along with the second end 414, until the push key 4213 moves to the second position in the axial direction, and the push key 4213 and the strut 4212 stop moving in the axial negative direction, and fig. 9 shows that the push key 4213 and the strut 4212 are located at the second position.

In some embodiments, as shown in FIG. 10, the first brush assembly 3 includes a brush holder 31 and a projection 32. As shown in fig. 3, the brush holder 31 is disposed in the cavity 21, the brush holder 31 extends in the axial direction, and a side (an upper side in fig. 3) of the brush holder 31 near the opening 22 is provided with first bristles 311. In some embodiments, as shown in fig. 10, the first bristles 311 may be arranged on the roller 2 in a v-shape, as shown in fig. 11, and the openings 22 on the roller 2 may also be provided as v-shaped openings 22 adapted to the first bristles. The embodiment of the present invention does not limit the material and hardness of the first bristles 311 of the first brush assembly. The protrusion 32 is disposed on a side (a lower side in fig. 10) of the brush holder 31 away from the opening 22, and as shown in fig. 3, the protrusion 32 is movably connected to the moving component 422.

The moving assembly 422 includes a support 4221. The support 4221 extends axially, and the surface of the support 4221 is provided with a second sliding slot 4221a, and the projection 32 can extend into the second sliding slot 4221a and move along the second sliding slot 4221 a. One end (left end in fig. 3) of the support 4221 abuts against the second elastic element 423, the other end (right end in fig. 3) of the support 4221 abuts against the sliding column 4212, the sliding column 4212 can push the support 4221 to move in the axial forward direction (leftward in fig. 3), the support 4221 presses the second elastic element 423 in the moving process, and the second elastic element 423 is pressed and deformed. In the case of the negative axial (rightward in fig. 3) movement of the spool 4212, the second elastic member 423 is deformed again, and the restoring force of the second elastic member 423 drives the support 4221 to move in the negative axial direction. During the axial reciprocating movement of the support 4221, the projection 32 can move in the radial direction along the second link 4221a of the support 4221, thereby achieving the extension and contraction of the first brush assembly 3 in the radial direction.

In some embodiments, as shown in fig. 3, the extending direction of the second sliding slot 4221a is disposed at an acute angle with the axial direction, it should be noted that the extending form of the second sliding slot 4221a may be a straight sliding slot or a curved sliding slot, however, in any extending form of the second sliding slot 4221a in the embodiment of the present invention, the second sliding slot 4221a has a general extending direction, and the extending direction may be represented by a direction of a connecting line between two opposite ends of the second sliding slot 4221a in the extending direction. In the embodiment of the present invention, the extending direction of the second link 4221a forms an acute angle with the axial direction, that is, the extending direction of the second link 4221a extends in both the axial direction and the radial direction, but the extending direction of the second link 4221a is not perpendicular to the axial direction, it can be understood that the opposite ends of the second link 4221a are spaced in both the axial direction (the left and right direction shown in fig. 3) and the radial direction (the up and down direction shown in fig. 3) of the drum 2, and the first brush assembly can move along the second link 4221a to extend and retract in the radial direction. The second sliding groove 4221a has opposite ends in the length extending direction, and the opposite ends are spaced in both the axial direction (left-right direction shown in fig. 3) and the radial direction (up-down direction shown in fig. 3) of the drum 2, so that the first brush assembly can move in both the axial direction and the radial direction relative to the sliding groove during the movement of the first brush assembly 3 along the second sliding groove 4221 a. According to the embodiment of the invention, the position of the first brush component in the axial direction can be limited, so that the first brush component can move along the radial direction of the sliding groove under an absolute coordinate system in the process of moving the telescopic component, and the first brush component can move along the axial direction of the sliding groove under a coordinate system relative to the sliding groove.

The movement of the first brush assembly is described below with reference to fig. 3:

in the first position, the first bristles 311 of the first brush assembly 3 protrude from the opening 22 in the radial direction (in the vertical direction shown in fig. 3), the support 4221 is provided with four sliding grooves 4221a, the first sliding groove 4221a and the fourth sliding groove 4221a from left to right extend from the upper left to the lower right in the same manner, and the first bristle assembly 3 located below is connected with the two sliding grooves 4221 a; the second and fourth sliding

grooves

4221a and 4221a extend from left to right in the same manner, and extend from the lower left to the upper right, and the first brush component 3 located above is connected to the two sliding grooves 4221 a.

During the process of switching the first bristle assembly 3 from the first position to the second position, the support 4221 moves in the negative axial direction (rightward in fig. 3), the chute 4221a on the support 4221 also moves in the negative axial direction (rightward in fig. 3), the first bristle assembly 3 moves along the extending direction of the chute 4221a, and since the upper first bristle assembly 3 extends from the lower left to the upper right corresponding to the chute 4221a, during the process of moving the support 4221, the upper first bristle assembly 3 moves in the positive axial direction (leftward in fig. 3) relative to the chute 4221a and in the direction (downward in fig. 3) radially approaching the axis relative to the drum 2; since the lower first bristle assembly 3 extends from the upper left to the lower right corresponding to the sliding slot 4221a, during the movement of the support 4221, the lower first bristle assembly 3 moves in the axial forward direction (leftward in fig. 3) relative to the sliding slot 4221a and in the radial direction close to the axis (upward in fig. 3) relative to the drum 2, so that the upper and lower first bristle assemblies 3 are both retracted in the cavity 21 to reach the state of the second position.

In some embodiments, the roll brush assembly 10 further comprises a second bristle. The second brush hair is fixed on the surface of the roller 2 along the axial direction; wherein, in the state that the first brush assembly 3 protrudes out of the opening 22, the first brush assembly 3 protrudes the second bristles in the radial direction of the roller 2. In some embodiments, the first bristles 311 in the first brush assembly 3 may be bristles and the second bristles may be bristles. The first brush of hard material can be used for cleaning the carpet, the second brush of soft material can be used for cleaning the floor. The two brush structures of the first brush hair and the second brush hair can be oppositely switched on the rolling brush, wherein the second brush hair is a fixed structure fixed on the surface of the roller 2, and the first brush hair 311 is movably arranged in the cavity corresponding to the second brush hair, so that the first brush hair 311 can adjust the radial position relative to the second brush hair by extending or retracting in the cavity 21.

An embodiment of the present invention provides a cleaning apparatus, as shown in fig. 1, including: according to the rolling brush assembly 10, the seat body 6 and the driving device 7 of any of the above embodiments, the two ends of the rolling brush assembly 10 in the axial direction are rotatably connected to the seat body 6, and the driving device 7 is used for driving the rolling brush assembly 10 to rotate around the axial direction relative to the seat body 6. In a cleaning state, the driving device 7 can drive the rolling brush assembly 10 to rotate around the self axial direction, bristles on the rolling brush assembly 10 can move around the axial direction along with the roller so as to achieve continuous contact and friction with the floor and drive dust on the floor to be lifted, and then the lifted dust is adsorbed into the cleaning equipment through the dust absorption part, so that the cleaning purpose is achieved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A round brush assembly characterized in that it comprises:

the roller is internally provided with a cavity extending along the axial direction and is provided with an opening communicated with the cavity;

a first brush assembly extending in the axial direction and located in the opening in a circumferential direction of the drum, the first brush assembly being reciprocatable in a radial direction of the drum;

the transmission device is connected with the first brush assembly to drive the first brush assembly to do reciprocating motion in the radial direction, at least part of the transmission device protrudes out of the roller in a first direction, and a set included angle is formed between the first direction and the axial direction; the transmission device includes:

a pedal mechanism, one part of which protrudes from the roller in the first direction and the other part of which extends along the axial direction; the part of the pedal mechanism protruding out of the roller is used for receiving driving force of the outside along a first direction;

the telescopic mechanism is positioned in the cavity, axially extends and is used for axially moving along with the movement of the pedal mechanism, and the first brush assembly is connected with the telescopic mechanism and can move relative to the telescopic mechanism; the telescopic mechanism is used for converting the driving force in the first direction into axial force and driving the first brush component to stretch in the radial direction.

2. The brush roll assembly of claim 1, wherein the pedal mechanism comprises:

a first sub-mechanism extending to a first end of the pedal mechanism, the first sub-mechanism being translatable in the first direction;

and the second sub-mechanism extends to the second end of the pedal mechanism and is used for moving along the axial direction along with the translation of the first sub-mechanism.

3. The brush roll assembly of claim 2, wherein the first sub-mechanism comprises:

a pressing rod extending from the first end to an abutting end against which the second sub-mechanism can abut;

the first elastic piece is abutted against one side, close to the roller, of the pressure lever in the first direction and can reciprocate in the first direction;

the second sub-mechanism includes:

one end of the first connecting rod is fixed relative to the roller in the axial direction, and the other end of the first connecting rod is a hinged end and is abutted against the abutting end of the pressure lever;

a second link hinged to the first link and extending to the second end.

4. The brush roll assembly of claim 3, wherein the second sub-mechanism further comprises:

the ejector rod extends along the axial direction, and one end of the ejector rod is hinged with the second end of the second connecting rod;

the one end of first connecting rod with the cassette butt, the cassette is equipped with along axial blind hole, the blind hole with the cavity intercommunication, the other end of ejector pin can be in axial motion in the blind hole.

5. The brush roll assembly of claim 3, wherein the first sub-mechanism further comprises:

the pedal piece is connected to one side, far away from the roller, of the pressure rod in the first direction.

6. The round brush assembly according to any of claims 1-5, wherein the first brush assembly comprises:

the brush holder is arranged in the cavity and extends along the axial direction, and one side of the brush holder, which is close to the opening, is provided with first bristles;

the convex block is arranged on one side, far away from the opening, of the brush frame and movably connected with the transmission device.

7. The brush roll assembly of claim 6, wherein the telescoping mechanism comprises:

the positioning assembly is arranged close to the second end of the pedal mechanism, can move along the axial direction under the action of the pedal mechanism and is positioned at a first position and a second position in the axial direction;

the moving component extends along the axial direction and is abutted with the positioning component so as to move along with the positioning component along the axial direction; wherein the first brush component is movably connected with the moving component;

and the second elastic piece is arranged between one end of the moving assembly, which is far away from the positioning assembly, and the roller and is used for pushing the moving assembly to move reversely along the axial direction.

8. The roller brush assembly of claim 7, wherein the positioning assembly comprises:

the bearing seat is hollow, the bearing seat is provided with a third end and a fourth end which are opposite in the axial direction, the fourth end is close to the moving assembly relative to the third end, first bulges extending along the axial direction are arranged on the inner wall of the bearing seat and are arranged at intervals in the circumferential direction, a first sliding groove is formed between every two adjacent first bulges, and a first inclined plane is arranged on one side, close to the fourth end, of each first bulge;

the sliding column extends along the axial direction and is at least partially arranged on one side, close to the fourth end, in the bearing seat, a plurality of second protrusions are arranged at intervals in the circumferential direction, and a second inclined plane is arranged on one side, close to the third end, of each second protrusion;

the pressing key is arranged on one side of the third end, the pressing key is close to one end of the fourth end and is provided with a third inclined surface, the third inclined surface is matched with the second inclined surface, a plurality of third protrusions are arranged on the pressing key at intervals in the circumferential direction, the third protrusions can slide in the axial direction relative to the first sliding groove, and therefore the second inclined surface on the second protrusions is driven to be matched with the first sliding groove and the first inclined surface in turn.

9. The brush roll assembly of claim 8, wherein the movement assembly comprises:

the support is axially extended, a second sliding groove is formed in the surface of the support, one end of the support is abutted to the second elastic piece, the other end of the support is abutted to the sliding column, and the protruding block can move along the second sliding groove.

10. The brush assembly of claim 9, wherein the second track extends at an acute angle relative to the axial direction, the first brush assembly being movable along the second track to telescope in the radial direction.

11. The brush roll assembly of claim 1, further comprising:

the second brush hair is fixed on the surface of the roller along the axial direction; wherein, under the state that the first brush component protrudes out of the opening, the first brush component protrudes out of the second brush bristles in the radial direction of the roller.

12. A cleaning apparatus, comprising:

a base body;

a round brush assembly according to any of claims 1-11;

and the driving device is used for driving the rolling brush component to rotate around the axial direction relative to the base body.