CN114451826A - Cleaning assembly - Google Patents

Abstract

The present invention relates to a cleaning assembly comprising: the cleaning piece is annular and sleeved on the transmission piece, the cleaning piece and the transmission piece are provided with a limiting piece and a limiting groove which are matched with each other, and when the limiting piece is accommodated in the limiting groove, a redundant space is formed between the limiting piece and the limiting groove. The cleaning piece and the transmission piece which are sleeved and matched are provided with the limiting piece and the limiting groove which are matched with each other, so that the cleaning piece can be prevented from deviating relative to the transmission piece; the locating part holding is when the spacing groove, through set up redundant space between locating part and spacing groove, can make the cleaning member rotate to the regional time of buckling with the driving medium laminating contact, for the locating part warp provide sufficient deformation space and can not with the spacing groove between produce the extrusion force to can not influence the rotation efficiency of cleaning member for the driving medium.

Description

Cleaning assembly

Technical Field

The invention relates to the technical field of intelligent equipment, in particular to a cleaning assembly.

Background

Cleaning robots have been attracting much attention as intelligent products to replace manual cleaning. In order to realize good cleaning effect, the cleaning robot is provided with a plurality of auxiliary elements, so that more functions are realized while the cleaning effect is improved. For example, the crawler-type rag component is arranged on the cleaning robot, so that the cleaning area can be increased, and the cleaning efficiency can be improved. However, in the process of running the crawler-type cleaning cloth component, cleaning cloth can deviate, so that the cleaning area is relatively reduced, and the deviated cleaning cloth can even interfere with other elements, thereby affecting the cleaning effect.

Disclosure of Invention

In view of the above, there is a need to provide a cleaning assembly that addresses the stability problems of the wipe assembly during operation.

A cleaning assembly, comprising: the cleaning piece is annular and sleeved on the transmission piece, the cleaning piece and the transmission piece are provided with a limiting piece and a limiting groove which are matched with each other, and when the limiting piece is accommodated in the limiting groove, a redundant space is formed between the limiting piece and the limiting groove.

In one embodiment, the limiting member is located on the inner surface of the cleaning member, the position on the outer surface of the transmission member corresponding to the limiting member is provided with the limiting groove, or the inner surface of the cleaning member is provided with the limiting groove, the position on the outer surface of the transmission member corresponding to the limiting member is provided with the limiting member, and the limiting member always has a portion accommodated in the limiting groove in the process that the transmission member drives the cleaning member to rotate.

In one embodiment, the limiting member includes a radially arranged vertical section and a tapered section, one end of the vertical section is connected with the cleaning member, the other end of the vertical section is connected with the tapered section, and the vertical section and/or the tapered section and the limiting groove have the redundant space in the axial direction.

In one embodiment, the height of the position-limiting member is less than or equal to the depth of the position-limiting groove.

In one embodiment, the limiting member is an annular strip-shaped structure arranged along the circumferential direction of the cleaning member.

In one embodiment, the limiting member is located on the inner surface of the cleaning member, and the position on the outer surface of the transmission member corresponding to the limiting member is provided with the limiting groove, or the inner surface of the cleaning member is provided with the limiting groove, and the position on the outer surface of the transmission member corresponding to the limiting member is provided with the limiting member; the limiting piece is circumferentially provided with a set gap to be matched with the limiting groove to form the redundant space, and the size of the set gap is changed along with the movement of the limiting piece in the limiting groove.

In one embodiment, when two adjacent limiting members rotate from the outside of the limiting groove to the inside of the limiting groove to be matched with the limiting groove, and then rotate to the outside of the limiting groove to be separated from the limiting groove, the set gap is first reduced and then increased.

In one embodiment, the limiting members are circumferentially separated by a set distance to form the set gap, the set distance between adjacent limiting members is less than or equal to half of the circumference of the outer surface of the transmission member, and the adjacent limiting members are matched with the limiting grooves to form the redundant space; or

The fixed ends of the limiting parts are connected in sequence, the free ends of the limiting parts are spaced in sequence to form the set gap, and the limiting parts and the limiting grooves are matched to form the redundant space.

In one embodiment, the device further comprises a mounting frame, the transmission piece is movably mounted on the mounting frame, and the surface of the mounting frame is lower than the bottom of the limiting groove; or

The mounting bracket surface is higher than the bottom in spacing groove and be less than the driving medium surface, and with the position setting that the spacing groove corresponds dodges the groove.

In one embodiment, the cross section of the limiting member is one of a trapezoid, a triangle, a rectangle or an arc.

The cleaning component can prevent the cleaning piece from deviating relative to the transmission piece by arranging the limit piece and the limit groove which are matched with each other on the cleaning piece and the transmission piece which are sleeved and matched with each other; the locating part holding is when the spacing groove, through set up redundant space between locating part and spacing groove, can make the cleaning member rotate to the regional time of buckling with the driving medium laminating contact, for the locating part warp provide sufficient deformation space and can not with the spacing groove between produce the extrusion force to avoid influencing the rotation efficiency of cleaning member for the driving medium.

Drawings

Fig. 1 is a schematic view of an overall structure of a cleaning assembly according to an embodiment of the present invention.

Fig. 2 is an assembly view of the cleaning assembly on the sweeping robot body according to an embodiment of the present invention.

Fig. 3 is an assembly view of the cleaning assembly on the sweeping robot body in another state according to an embodiment of the present invention.

FIG. 4 is a schematic sectional view of the driving member and the cleaning member of the cleaning assembly according to an embodiment of the present invention.

FIG. 5 is a schematic view of a cleaning member of the cleaning assembly according to an embodiment of the present invention.

FIG. 6 is a schematic cross-sectional view of a rotating member and a mounting bracket according to an embodiment of the invention.

FIG. 7 is a schematic view of another structure of a cleaning member of the cleaning assembly in an embodiment of the present invention.

FIG. 8 is a cross-sectional view of another embodiment of the driving member and the cleaning member of the cleaning assembly of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

Referring to fig. 1, fig. 1 shows a schematic view of a cleaning assembly 10 according to an embodiment of the present invention. The cleaning assembly 10 provided by the invention can be applied to a sweeping robot or other self-moving type cleaning equipment to clean the ground and the like. For example, referring to fig. 2 and 3, fig. 2 is a schematic view of the overall structure of the cleaning assembly 10 disposed on the sweeping robot body 20, and fig. 3 omits the cleaning member 300 for easy viewing.

Referring to fig. 1 and 3, a cleaning assembly 10 according to an embodiment of the present invention includes a driving member 100 and a cleaning member 300. The cleaning member 300 is a ring structure, and the cleaning member 300 is sleeved on the outside of the transmission member 100. The transmission member 100 can rotate around its axis to drive the cleaning member 300 sleeved on the transmission member 100 to rotate. The cleaning member 300 is driven by the transmission member 100 to move relative to the ground, and the surface of the cleaning member 300 departing from the transmission member 100, i.e. the outer surface of the cleaning member 300, performs a cleaning function during the relative movement with the ground.

Referring to fig. 3, the transmission member 100 includes at least two rotating shafts disposed in parallel, and in the present embodiment, the transmission member 100 includes a first rotating shaft 110 and a second rotating shaft 130 that are parallel to each other. The vertical distance between the first rotating shaft 110 and the second rotating shaft 130 is adapted to the actual size of the cleaning member 300. The first rotating shaft 110 and the second rotating shaft 130 are used for the cleaning elements 300 to be sleeved.

The cleaning member 300 sleeved on the transmission member 100 is a ring structure with two open ends and a closed circumference. The cleaning member 300 is in a tensioned state between the first rotating shaft 110 and the second rotating shaft 130 to form a cleaning surface having a relatively stable cleaning area between the first rotating shaft 110 and the second rotating shaft 130.

Since the cleaning member 300 is displaced along the axial direction of the first rotating shaft 110 and the second rotating shaft 130 during the rotation of the cleaning member 300 with the rotation of the transmission member 100, the cleaning member 300 is deflected to one side, which affects the contact area of the cleaning member 300 with respect to the ground, and even affects the motion of the transmission member 100.

Referring to FIG. 4, FIG. 4 shows a radial cross-sectional view of cleaning element 300 and driving element 100 in an engaged state. In order to prevent the cleaning element 300 from axially deviating from the transmission element 100, the surface of the cleaning element 300 opposite to the transmission element 100 is provided with a limiting element 210 and a limiting groove 230, which are matched with each other, and the limiting element 210 always has a portion accommodated in the limiting groove 230 when the transmission element 100 drives the cleaning element 300 to rotate. The limiting member 210 is a protruding structure disposed along the circumferential direction, the limiting groove 230 is a recessed structure disposed along the circumferential direction, and the recessed surface for forming the limiting groove 230 can be referred to as a groove wall of the limiting groove 230 and a groove bottom of the limiting groove 230.

Referring to fig. 3, 4 and 5, in one embodiment, the position-limiting member 210 is located on the inner surface of the cleaning member 300 and is disposed around the circumference of the cleaning member 300. The limiting member 210 protrudes from the inner surface of the cleaning member 300. The position of the outer surface of the first rotating shaft 110 corresponding to the position-limiting member 210 is provided with the position-limiting groove 230, and the position-limiting groove 230 is recessed from the outer surface of the first rotating shaft 110 toward the central axis direction of the first rotating shaft 110 and is disposed around the circumference of the first rotating shaft 110. In the assembled state of the cleaning assembly 10, the position-limiting member 210 is partially received in the position-limiting groove 230. The second shaft 130 is also provided with a corresponding limiting groove 230, which is not described herein.

In the process that the driving member 100 drives the cleaning member 300 to rotate, if the cleaning member 300 tends to move in the axial direction relative to the driving member 100, at this time, since the limiting member 210 is disposed and the moving stroke of the limiting groove 230 is limited in the axial direction by the groove wall of the limiting groove 230, the purpose of preventing the cleaning member 300 from deviating can be achieved, and a relatively stable connection relationship between the cleaning member 300 and the driving member 100 is ensured. The phenomenon of local wrinkles of the cleaning piece 300 is avoided, and the cleaning area is ensured.

Referring to fig. 3, the limiting groove 230 is disposed at a middle position of the driving member 100. Accordingly, referring to fig. 5, the position limiting member 210 is disposed at a middle position of the cleaning member 300. In another embodiment, the limit groove 230 may be provided at an end position in the axial direction of the transmission member 100. Accordingly, the stopper 210 is disposed at an end position of the cleaning member 300. In still other embodiments, the limiting groove 230 may be disposed at a middle position of the driving member 100. Accordingly, the stopper 210 is disposed at a middle position of the cleaning member 300.

In this embodiment, the arrangement positions of the limiting grooves 230 on the transmission member 100 and the corresponding positions of the limiting members 210 on the cleaning member 300 are not exhaustive.

The cross-section of the limiting member 210 may be one of a trapezoid, a triangle, a rectangle or an arc, but is not limited to the above list.

In this embodiment, the outer surface of the transmission member 100 is made of an elastic material, such as silicon rubber or rubber. The friction between the driving member 100 and the cleaning member 300 can be increased by providing an elastic material at a position where the driving member 100 contacts the cleaning member 300.

Unlike the arrangement shown in fig. 3, 4 and 5, in another embodiment, the inner surface of the cleaning member 300 is circumferentially provided with the limiting groove 230, and the position of the outer surface of the transmission member 100 corresponding to the limiting groove 230 is circumferentially provided with the limiting member 210. Similarly, the cleaning element 100 is constrained from axial displacement relative to the transmission element 100 by the constraint effect formed by the cooperation between the limiting element 210 and the limiting groove 230, so as to ensure that the cleaning element 300 and the transmission element 100 have a relatively stable position relationship in the axial direction.

When the limiting member 210 is located on the inner surface of the cleaning member 300, the limiting member 210 rotates synchronously with the rotation of the cleaning member 300. When the limiting member 210 rotates from the outside of the limiting groove 230 to enter the limiting groove 230 and bends, the limiting member 210 generates stress at the position where the limiting member bends, and a large friction force is generated between the bending deformation portion of the limiting member 210 and the limiting groove 230, so that a large resistance force is generated between the limiting member 210 and the groove wall of the limiting groove 230 and/or the groove bottom of the limiting groove 230, and further, the relative movement resistance between the cleaning member 300 and the transmission member 100 is increased, and the transmission efficiency is reduced.

Therefore, for the cleaning assembly 10, the cleaning element 300 and the transmission element 100 are respectively provided with the limiting member 210 and the limiting groove 230, which are engaged with each other, and when the limiting member 210 is received in the limiting groove 230, a redundant space is formed between the limiting member 210 and the limiting groove 230. That is, during the rotation of the cleaning member 300, the portion of the limiting member 210 located in the limiting groove 230 has a redundant space with the limiting groove 230 during the process from the time the limiting member 210 enters the limiting groove 230 to be bent and deformed until the portion leaves the limiting groove 230 to recover the deformation.

Through setting up above-mentioned redundant space, can make cleaning member 300 rotate to the bending region of laminating contact with driving medium 100, take place to warp because of buckling for locating part 210 on the cleaning member 300 internal surface provides the deformation space, make can not produce mutual extrusion force between locating part 210 and the surface that forms spacing groove 230 to can not influence the rotation efficiency of cleaning member 300 for driving medium 100.

When the limiting member 210 is received in the limiting groove 230, the limiting member 210 and the limiting groove 230 have the redundant space in the axial direction, or the limiting member 210 and the limiting groove 230 have the redundant space in the radial direction, or both the limiting member 210 and the limiting groove 230 have the redundant space in the axial direction and the circumferential direction.

Referring to fig. 5, in the present embodiment, the position-limiting member 210 is an annular strip-shaped structure disposed along the circumferential direction of the cleaning member 100, and the cross sections of the strip-shaped structure in the circumferential direction are the same. Also, as shown in fig. 4, the limiting member 210 includes a vertical section 211 and a tapered section 212 arranged in a radial direction, and one end of the vertical section 211 is connected to the inner surface of the cleaning member 300 and the other end is connected to the tapered section 212. The spacing between the two opposite sides of the tapered section 212 from the retaining groove 230 gradually changes in the direction away from the vertical section 211, i.e., the dimension of the tapered section 212 in the axial direction gradually changes in the direction away from the cleaning member 100.

The redundant space may be formed by the vertical section 211 and the limiting groove 230 in the axial direction, or the redundant space may be formed by the tapered section 212 and the limiting groove 230 in the axial direction, or the redundant space may be formed by the vertical section 211 and the tapered section 212 together with the limiting groove 230 in the axial direction.

In one embodiment, as shown in fig. 4, the cross-sectional shape of the position-limiting groove 230 is rectangular, and in the case that the size of the tapered section 212 in the axial direction is gradually reduced, when the vertical section 211 contacts with the groove wall surface of the position-limiting groove 230, the tapered section 212 and the groove wall of the position-limiting groove 230 have a gradual gap 240 in the axial direction, and the gradual gap 240 forms the above-mentioned redundant space.

In another embodiment, for example, in the case that the cross-sectional area of the spacing groove 230 is configured to be gradually increased from the center line of the transmission member 100 to the outer surface, such as a trapezoid or a triangle, that is, the cross-sectional shape of the spacing groove 230 is not a rectangle as shown in fig. 4, when the tapered section 212 contacts with the groove wall surface of the spacing groove 230, the vertical section 211 and the groove wall of the spacing groove 230 have the above-mentioned redundant space in the axial direction.

In another embodiment, for example, the cross section of the position-limiting groove 230 is trapezoidal, and the size of the tapered section 212 in the axial direction varies irregularly, and at this time, when the position-limiting member 210 is received in the position-limiting groove 230, the redundant spaces mentioned above are shared between the vertical section 211 and the groove wall of the position-limiting groove 230 and between the tapered section 212 and the groove wall of the position-limiting groove 230 in the axial direction.

It should be noted that the size variation trend of the tapered section 212 in the axial direction can be set as required, and the cross-sectional shape of the limiting groove 230 is not exhaustive, as long as it is ensured that when the limiting member 210 is accommodated in the limiting groove 230, the redundant space is provided between the limiting member 210 and the limiting groove 230 to provide a deformation space for the limiting member 210 during bending, and still enable a relatively stable relative position between the cleaning member 300 and the transmission member 100 in the axial direction.

Referring to fig. 4, the position-limiting element 210 has a predetermined height in a radial direction, and the position-limiting groove 230 has a predetermined depth in the radial direction. In practical configurations, the height of the position-limiting member 210 may be less than the depth of the position-limiting groove 230, or the height of the position-limiting member 210 may be equal to the depth of the position-limiting groove 230.

Referring to fig. 4, in one embodiment, the height of the position-limiting element 210 is set to be less than the depth of the position-limiting groove 230, that is, the surface of the tapered section 212 facing the bottom of the position-limiting groove 230 is away from the bottom of the position-limiting groove 230 by a set distance, i.e., not contacting the bottom of the position-limiting groove 230. The set distance in the radial direction between the tapered section 212 and the groove bottom of the stop groove 230 can also be a component of the redundant space.

In another embodiment, the height of the position-limiting member 210 is set to be equal to the depth of the position-limiting groove 230, that is, the surface of the tapered section 212 facing the bottom of the position-limiting groove 230 contacts with the bottom of the position-limiting groove 230, and when the cleaning member 300 and the transmission member 100 rotate relatively, the tapered section 212 and the bottom of the position-limiting groove 230 have sliding friction. The sliding friction does not hinder the transmission efficiency between the cleaning member 300 and the transmission member 100.

By arranging the limiting member 210 and the limiting groove 230 which are matched with each other on the cleaning member 300 and the transmission member 100 which are sleeved and matched with each other, the cleaning member 300 can be prevented from deviating in the axial direction relative to the transmission member 100; when the position-limiting member 210 is received in the position-limiting groove 230, a redundant space exists between the position-limiting member 210 and the position-limiting groove 230, so that when the position-limiting member 210 is bent and deformed in the position-limiting groove 230, a sufficient deformation space is provided, and the rotation efficiency of the cleaning member 300 relative to the transmission member 100 is not affected.

Referring to fig. 1, the cleaning assembly 10 further includes a mounting frame 400, the driving member 100 is movably mounted on the mounting frame 400, and the cleaning member 100 is wound around the driving member 100. Referring to fig. 3, the mounting frame 400 is detachably connected to the sweeping robot body 20, and the transmission member 100 can rotate relative to the mounting frame 400. The cleaning assembly 10 is provided with the mounting frame 400, so that the cleaning assembly 10 can be conveniently assembled and disassembled on the sweeping robot body 20.

Referring to fig. 1, two ends of the mounting frame 400 extend out of openings at two ends of the cleaning element 300 so as to be mounted on the sweeping robot body 20. Referring also to fig. 6, for the sake of convenience of viewing, fig. 6 is a schematic sectional view showing a partial structure of the rotating member 300 and the mounting bracket 400 in the sectional direction shown in fig. 3, for illustration. In the orientation of the view shown in FIG. 6, the mount 400 has an upper surface 401 and a lower surface 402, taken horizontally along the centerline aa. In the vertical direction, the height of the upper surface 401 of the mounting bracket 400 from the aa horizontal line is lower than the height D of the bottom of the limiting groove 230 from the aa horizontal line. Symmetrically, the height of the lower surface 402 of the mounting bracket 400 from the aa horizontal line is lower than the height D of the bottom of the limiting groove 230 from the aa horizontal line. By disposing both the upper surface 401 and the lower surface 402 of the mounting block 400 lower than the bottom of the limiting groove 230 with respect to the aa horizontal line, the mounting block 400 can be prevented from interfering with the limiting member 210 on the cleaning member 100.

Referring to fig. 3, in another embodiment, when the upper surface 401 of the mounting frame 400 is higher than the bottom of the limiting groove 230 and lower than the outer surface of the transmission member 100 relative to the aa horizontal line, an avoiding groove 410 is formed on the upper surface 401 of the mounting frame 400 at a position corresponding to the limiting groove 230 so as not to interfere with the limiting member 210 on the cleaning member 100. Similarly, symmetrically, the avoidance groove 410 is also disposed at a position corresponding to the position of the lower surface 402 of the mounting bracket 400 and the position of the limiting groove 230.

Example 2

Referring to fig. 7, unlike embodiment 1, the limiting member 210 has a set gap 213 in the circumferential direction, so that when the limiting member 210 is accommodated in the limiting groove 230, the set gap 213 and the limiting groove 230 cooperate to form a redundant space, and the size of the set gap 213 changes with the movement of the limiting member 210 in the limiting groove 230.

The inner surface of the cleaning member 300 is circumferentially provided with a plurality of stoppers 210, and the set gap 213 is provided between two adjacent stoppers 210. When two adjacent limiting members 210 rotate from the outside of the limiting groove 230 to the inside of the limiting groove 230 to be matched with the limiting groove 230, and then rotate to the outside of the limiting groove 230 to be separated from the limiting groove 230, the set gap 213 between the two adjacent limiting members 210 is first decreased and then increased along with the deformation state of the limiting members 210.

In the present embodiment, referring to fig. 7, for convenience of description and understanding, one end of the limiting member 210 close to the inner surface of the cleaning member 300 is defined as a fixed end 201, and one end of the limiting member 210 far from the inner surface of the cleaning member 300 is defined as a free end 203. The fixed ends 201 of the limiting members 210 are connected in sequence, and the free ends 203 of the limiting members 210 are spaced in sequence to form a set gap 213.

Referring to fig. 7, in one embodiment, the position-limiting member 210 has a triangular prism structure, a center line of the triangular prism structure is parallel to an axial direction of the cleaning assembly 10, and a cross section of the position-limiting member in the axial direction is triangular. One surface of the triangular prism, which is the end where the fixed end 201 is located, is connected to the inner surface of the cleaning member 300; the edge opposite to the surface is the free end 203. The fixed end 201 of each limiting member 210 of the triangular prism structure is connected to the inner surface of the cleaning member 300 in sequence, and a set gap 213 is formed between the two opposite surfaces of each limiting member 210. When two adjacent limiting members 210 enter the limiting slot 230, the set gap 213 and the limiting slot 230 cooperate to form a redundant space, and during the movement of the limiting members 210 in the limiting slot 230, the size of the set gap 213 changes correspondingly with the deformation of the limiting members 210.

In another embodiment, the position limiting member 210 is in the shape of a gear tooth. The fixed end 201 of each limiting member 210 in the shape of a gear tooth is connected to the inner surface of the cleaning member 300 in sequence, and the tooth width direction of the gear tooth is parallel to the axial direction of the cleaning assembly 10. It can be understood that, if the ring-shaped cleaning member 300 is unfolded to have a rectangular shape, the plurality of stoppers 210, which are positioned on the inner surface of the cleaning member 300 and to which the fixed ends 201 are sequentially connected, form a rack structure. The spacing between the individual gear teeth in the rack structure forms a set gap 213. Because the set gap 213 exists between adjacent gear teeth, when the adjacent gear teeth, i.e. the adjacent limiting members 210, bend when entering the limiting groove 230, the set gap 213 provides a deformation space for the forced deformation of the gear teeth, so that the transmission efficiency between the cleaning member 300 and the transmission member 100 is not affected.

In another embodiment, two circumferentially opposite surfaces of two adjacent limiting members 210 are at least partially not in contact, i.e., the two circumferentially opposite surfaces may be partially in contact with each other and still have a set gap 213. When two adjacent limiting members 210 enter the limiting groove 230, the contact portions are also accommodated in the limiting groove 230, so that a redundant space is formed, and the volume of the limiting members 210 accommodated in the limiting groove 230 can be increased, so that the limiting members 210 and the limiting groove 230 have more matching portions, thereby further ensuring the connection stability of the cleaning member 300 and the transmission member 100.

In another embodiment, which can be combined with fig. 4 and 7, the redundant space can also be formed by the set gap 213 of the limiting member 210 in the circumferential direction and the gap of the limiting member 210 and the limiting groove 230 in the axial direction.

In the present embodiment, the size of the space region of the setting gap 213 may be different in different embodiments, and the space form of the setting gap 213 may be different in different embodiments and may be set according to specific situations.

In another configuration, for example, the limiting groove 230 is disposed on the inner surface of the cleaning element 300, and the limiting element 210 is disposed on the outer surface of the transmission element 100, where an end of the limiting element 210 close to the outer surface of the transmission element 100 is defined as a fixed end 201, and an end of the limiting element 210 far from the outer surface of the transmission element 100 is defined as a free end 203. The fixed ends 201 of the limiting members 210 are connected in sequence, and the free ends 203 of the limiting members 210 are spaced in sequence to form a set gap. In the above configuration, the principle of providing the deformation space for the deformation of the position-limiting member 210 is the same as that described above, and is not described herein again.

By arranging the setting gap 213 on the circumference of the limiting member 210, when the limiting member 210 enters the limiting groove 230 and is bent and deformed, the setting gap 213 and the limiting groove 230 cooperate to form a redundant space to provide a space for the deformation of the limiting member 210, so that the pressing force between the limiting member 210 and the limiting groove 230 during the bending and deformation is avoided, and the transmission efficiency between the cleaning member 300 and the transmission member 100 is ensured. The size of the set gap 213 changes during the movement of the position-limiting element 210.

Example 3

Referring to fig. 8, fig. 8 shows a cross-sectional view of the cleaning assembly 10 in a radial direction, wherein the centerline of the retaining groove 230 is located within the tangential plane. In the embodiment, the limiting member 210 has a set gap 213 in the circumferential direction, so that when the limiting member 210 is accommodated in the limiting groove 230, the set gap 213 and the limiting groove 230 cooperate to form a redundant space, and the size of the set gap 213 changes with the movement of the limiting member 210 in the limiting groove 230.

Unlike embodiment 2, referring to fig. 8, in this embodiment, the limiting members 210 are separated by a set distance H in the circumferential direction, the set distance H forms the set gap 213, the set distance H between adjacent limiting members 210 is less than or equal to half the circumference of the outer surface of the transmission member 100, and the adjacent limiting members 210 cooperate with the limiting grooves 230 to form the redundant space.

Referring to fig. 8, the cleaning member 300 is provided at an inner surface thereof with a plurality of stoppers 210 at a circumferential direction. The distance H between two adjacent limiting members 210 is not greater than the half perimeter of the outer surface of the transmission member 100, so as to ensure that at least one limiting member 210 is accommodated in the limiting groove 230, so that the cleaning member 300 has a stable connection relation with respect to the transmission member 100, and the cleaning member 300 is prevented from deviating with respect to the transmission member 100. Meanwhile, the set distance H and the limiting groove 230 form a redundant space to provide a space for the deformation of the limiting member 210.

In another embodiment, which can be combined with fig. 4 and 8, the redundant space can also be formed by a set distance H in the circumferential direction of the limiting member 210 and a gap in the axial direction of the limiting member 210 and the limiting groove 230.

As with embodiment 2, in this embodiment, there may be other configurations, for example, the limiting groove 230 may be disposed on the inner surface of the cleaning element 300, and the limiting element 210 is disposed on the outer surface of the transmission element 100, which is not described herein again.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A cleaning assembly, comprising: the cleaning piece is annular and sleeved on the transmission piece, the cleaning piece and the transmission piece are provided with a limiting piece and a limiting groove which are matched with each other, and when the limiting piece is accommodated in the limiting groove, a redundant space is formed between the limiting piece and the limiting groove.

2. The cleaning assembly of claim 1, wherein the limiting member is disposed on the inner surface of the cleaning member, and the limiting groove is disposed on the outer surface of the transmission member at a position corresponding to the limiting member, or the limiting groove is disposed on the inner surface of the cleaning member, and the limiting member is disposed on the outer surface of the transmission member at a position corresponding to the limiting groove, and the limiting member always has a portion received in the limiting groove during the rotation of the cleaning member driven by the transmission member.

3. The cleaning assembly of claim 2, wherein the retaining member comprises a radially disposed vertical section and a tapered section, the vertical section being connected to the cleaning member at one end and the tapered section at the other end, and the vertical section and/or the tapered section having the redundant space in the axial direction with the retaining groove.

4. The cleaning assembly of claim 3, wherein the height of the retainer is less than or equal to the depth of the retainer slot.

5. The cleaning assembly of claim 3, wherein the retaining member is an annular strip structure disposed circumferentially around the cleaning member.

6. The cleaning assembly of claim 1, wherein the limiting member is located on the inner surface of the cleaning member, and the limiting groove is located on the outer surface of the transmission member at a position corresponding to the limiting member, or the limiting groove is located on the inner surface of the cleaning member, and the limiting member is located on the outer surface of the transmission member at a position corresponding to the limiting member; the limiting piece is circumferentially provided with a set gap to be matched with the limiting groove to form the redundant space, and the size of the set gap is changed along with the movement of the limiting piece in the limiting groove.

7. The cleaning assembly as claimed in claim 6, wherein the spacing members are configured to rotate from the outside of the spacing groove to the inside of the spacing groove to engage with the spacing groove, and then to rotate from the outside of the spacing groove to disengage from the spacing groove, wherein the set gap is first decreased and then increased.

8. The cleaning assembly of claim 6, wherein said retaining members are circumferentially spaced apart a set distance forming said set gap, said set distance between adjacent retaining members being less than or equal to one half of a circumference of an outer surface of said drive member, said retaining members cooperating with said retaining grooves to form said redundant space; or

The fixed ends of the limiting parts are connected in sequence, the free ends of the limiting parts are spaced in sequence to form the set gap, and the limiting parts and the limiting grooves are matched to form the redundant space.

9. The cleaning assembly of claim 6, further comprising a mounting bracket, wherein the transmission member is movably mounted on the mounting bracket, and the surface of the mounting bracket is lower than the bottom of the limiting groove; or

The mounting bracket surface is higher than the bottom in spacing groove and be less than the driving medium surface, and with the position setting that the spacing groove corresponds dodges the groove.

10. The cleaning assembly of claim 1, wherein the cross-section of the retainer is one of trapezoidal, triangular, rectangular, or arcuate.

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