Rotary brush, floor brush of vacuum cleaner, and vacuum cleaner

Abstract

To provide a floor brush head of a vacuum cleaner effectively suppressing entanglement of hair, etc. around a rotary brush.SOLUTION: A rotary brush includes a base body, where an axial center line of the base body is a, the base body includes, on an outer surface, at least one set of cyclone grooves, and each set of cyclone grooves includes at least one first groove body. When a surface of a cylinder passing through a first position and using a as the axial center line is taken as A and a surface of a cylinder passing through a second position and using a as the axial center line is taken as B, a distance D between A and B, perpendicular to a and along a radial direction is greater than 2 mm. In the rotary brush, the size of D of the first groove body is set to be greater than 2 mm.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and specifically to a rotating brush, a floor brush head of a vacuum cleaner, and a vacuum cleaner.

Background Art

[0002] The entanglement of hair in a vacuum cleaner has always been the most troublesome problem for the industry and consumers. This is mainly because when the rotating brush of the vacuum cleaner sweeps and rotates during vacuuming, hair and the like are likely to entangle on the surface of the rotating brush. In more serious cases, hair and the like may entangle on the drive shaft of the motor, and the hair may be firmly entangled and cause the motor to burn out.

[0003] Currently, there is a method of installing a hair cutting blade on a vacuum cleaner to cut the entangled hair into segments and then suck and remove it. However, this increases the cost of the vacuum cleaner, makes the structure of the rotating brush of the vacuum cleaner more complex, and there is a risk of hurting fingers.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Therefore, a method for fundamentally solving the entanglement of hair in a vacuum cleaner remains an important issue that needs to be urgently solved in the vacuum cleaner industry.

Means for Solving the Problems

[0005] To solve the above technical problems, the present invention provides a rotary brush. It includes a base body, the axial center line of the base body is a, at least one set of cyclone grooves is installed on the outer surface of the base body, each set of the cyclone grooves includes at least one first groove body, the inner groove wall on the side of the first groove body away from a is a large-diameter groove wall, the inner groove wall on the side of the first groove body close to a is a small-diameter groove wall, the edge of the large-diameter groove wall away from a is a first edge, at least a part of the region of the first edge overlaps with the surface of at least one cylinder with a as the axial center line, and the overlapping region is the first position, at least a part of the region along the length direction of a of the small-diameter groove wall overlaps with the surface of a cylinder with a as the axial center line, and this overlapping region is the second position. Passing through the first position, the surface of the cylinder with a as the axial center line is A, passing through the second position, the surface of the cylinder with a as the axial center line is B, and the distance D between A and B perpendicular to a and along the radial direction of the base body is greater than 2 mm.

[0006] The rotary brush of the present invention has the following beneficial effects. In the present invention, the size of D of the first groove body is set to be greater than 2 mm. Since D is set large, due to the action of the first groove body, the air flow flowing into the first groove body forms a large cyclone, which is guided by the inner groove wall of the first groove body. Due to the suction force of the vacuum cleaner, the air flow blown into the cyclone groove is blocked by the first groove body and swirls, and is blown outwards in the direction away from the base body of the rotary brush, and the hair is blown outwards in the direction away from the rotary brush. Thereby, the probability of hair and the like approaching the base body of the rotary brush is effectively reduced, and the contact of hair and the like with the outer surface of the rotary brush is minimized. Furthermore, it is directly sucked into the cavity of the vacuum cleaner head, fundamentally directly eliminating the possibility of hair getting entangled with the rotary brush, and effectively solving the problem of entanglement of hair and the like with the rotary brush.

[0007] Furthermore, at least a part of the region of the first edge is a straight line, and at least a part of the region of the first position is a straight line.

[0008] Furthermore, at least a part of the region of the first edge is a curve, a wavy line, or a broken line.

[0009] Furthermore, each set of cyclone grooves includes two of the first groove bodies arranged in sequence along the circumferential direction of the base body, and the two first groove bodies are arranged facing the surface of the base body or in sequence. Therefore, the air flow is guided by the two first groove bodies to form cyclones in the two first groove bodies respectively, and swirls and blows out in a direction away from the outer surface of the base body. Thereby, the first groove body exerts the effect of swirl boosting to increase the pressure of the air flow, and the cyclones formed by the air flow in the two first groove bodies are guided by the first groove body to realize the rotation of the air flow, and rotate and blow out in a direction away from the outer surface of the base body respectively. The air flows swirling and blowing out from the two first groove bodies respectively produce a confluence effect. With respect to the wind force along the circumferential direction of the base body, the two first groove bodies produce a mutual cancellation effect, and with respect to the wind blowing outward in a direction away from the base body, the rotation and guidance of the two first groove bodies produce a confluence effect. Thereby, the possibility of hair getting entangled on the surface of the base body is eliminated, and due to the action of the induced wind force passing through the two first groove bodies, the hair is blown near the surface of the base body to be in a "floating state". During the rotation of the rotating brush, the hair in the "floating state" is smoothly sucked into the dust suction port of the vacuum cleaner. Therefore, due to the action of the two cyclone grooves, a resultant cyclone force is formed in a direction away from the surface of the rotating brush with respect to the hair, whereby the hair is blown away in a direction away from the surface of the base body, and a higher cyclone force can be formed with a lower energy consumption of the vacuum cleaner, resulting in a state where the hair "floats" on the outer surface of the rotating brush, and the entanglement of the hair on the rotating brush is fundamentally solved.

[0010] Also, furthermore, the two first groove bodies of each set of cyclone grooves are arranged in a mirror image. Therefore, due to the combined guiding action of the two first groove bodies, an action resultant force point is formed in the region where the two first groove bodies approach each other and is on the outer surface of the base body of the rotating brush, and a greater acting force for blowing away hair and the like from the surface of the rotating brush is formed. Correspondingly, the power consumption of the vacuum cleaner of the same size can be reduced.

[0011] Furthermore, in the region where the two first groove bodies approach each other, it protrudes in a direction away from the axial center of the rotating brush. In some embodiments, the protrusion in the central direction may refer to a protrusion effect formed by utilizing the circumferential arch-shaped arc surface structure of the base body of the rotating brush, or a structure may be formed at the intermediate connection position of the two first groove bodies that is larger than the diameter of the basic structure portion of the base body, that is, protrudes further in a direction away from the central axis. Therefore, due to the guidance of the protruding structure, the resistance when the air flows swirlingly guided by the two first groove bodies merge is reduced, and the merging of the two air flows can be realized smoothly.

[0012] Moreover, the sizes of the two first groove bodies do not match, and the Ds are not the same. Therefore, under the guidance of the two first groove bodies, it is still possible to exert the same effect as that of the two first groove bodies installed in a mirror image, and at the same time, the resultant force point of the air flow formed by the two first groove bodies can be adjusted so as not to be located outside the region between the two first groove bodies. For this reason, it can meet the more diverse structural and usage requirements of the vacuum cleaner during actual dust suction.

[0013] Furthermore, the inner walls of the two first groove bodies that are away from each other extend toward the axial center line away from the base body. Therefore, the air flow can be guided by the guidance of the structure of the first groove body, and the air flow is guided by the first groove body and blown out in a direction away from the base body, and the effect of blowing out hair and the like in a direction away from the base body can be realized.

[0014] Furthermore, each set of the cyclone grooves includes one first groove body and further includes one second groove body. The depth of the second groove body is 2 mm or less, and the second groove body is installed opposite to the first groove body.

[0015] Moreover, the second groove body is installed on the outer surface of the base body.

[0016] Furthermore, it further includes a connecting member connected to the outer surface of the base body, and the second groove body is installed on the connecting member.

[0017] Furthermore, the cross-section of at least a part of the first groove body is at least one of U-shaped, C-shaped, V-shaped, arc-shaped, L-shaped, semi-circular or right-angled. When the first groove body is V-shaped, the opening angle α of the first groove body does not exceed 123°.

[0018] Furthermore, the cross-section of the second groove body is at least one of U-shaped, C-shaped, V-shaped, arc-shaped, semi-circular or right-angled. When the second groove body is V-shaped, the opening angle α of the second groove body does not exceed 123°.

[0019] Furthermore, the first groove body is installed on the outer surface of the base body in a spiral shape, V-shape or linear shape.

[0020] Furthermore, when the first groove body is installed linearly, the first groove body is installed in a direction parallel to the central axis in the axial direction of the base body or in a direction having a spatial angle.

[0021] Furthermore, the inner walls of the two second groove bodies that are separated from each other extend toward the central axis in the axial direction away from the base body.

[0022] The present invention provides a floor brush head of a vacuum cleaner including the above-described rotary brush.

[0023] The present invention provides a vacuum cleaner including the above-described floor brush head of the vacuum cleaner.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2(a)

Figure 2(b)

Figure 3

Figure 4

Figure 5(a)

Figure 5(b)

Figure 6

Figure 7(a)

Figure 7(b)

Figure 8(a)

Figure 8(b)

Figure 9(a)

Figure 9(b)

Figure 10

Figure 11

Figure 12

Modes for Carrying Out the Invention

[0025] The following will refer to the drawings to describe in detail the preferred embodiments of the present invention, so that the advantages and features of the present invention can be easily understood by those skilled in the art, and thereby more clearly define the protection scope of the present invention.

[0026] Hair entanglement in a vacuum cleaner is the most troublesome problem for the industry and consumers. Currently, the problem of cleaning and treating hair by a vacuum cleaner cannot be effectively solved, and it is necessary to arrange tools such as blades, hooks or comb teeth to deal with the hair entangled in the rotating brush.

[0027] To solve the above technical problems, the present invention provides a rotating brush. As shown in FIG. 1, it includes a base body 1, the axial center line of the base body 1 is a, at least one set of cyclone grooves 2 is installed on the outer surface of the base body 1, and each set of cyclone grooves 2 includes at least one first groove body 21. As shown in FIG. 2(a), the inner groove wall on the side away from the axial center line a of the first groove body 21 is a large-diameter groove wall 211, and the inner groove wall on the side close to the axial center line a of the first groove body 21 is a small-diameter groove wall 212. The edge of the large-diameter groove wall 211 away from a is a first edge 213, and at least a part of the region of the first edge 213 overlaps with the surface of at least one cylinder with a as the axial center line, and the overlapping region becomes a first position 214 (see FIG. 1). At least a part of the region of the small-diameter groove wall 212 along the length direction of a overlaps with the surface of a cylinder with the axial center line a as the axial center line, and this overlapping region becomes a second position 215 (see FIG. 1). As shown in FIG. 3, the surface of the cylinder passing through the first position 214 with a as the axial center line is A, and the surface of the cylinder passing through the second position 215 with the axial center line a as the axial center line is B. When the second position 215 is at the position closest to the axial center line a, the distance between A and B along the radial direction of the base body 1 in the direction perpendicular to the axial center line a is D. In the present invention, D is greater than 2 mm. For example, in some embodiments, D is 2.1 mm, in some embodiments, D is 3 mm, in some embodiments, D is 3.5 mm, in some embodiments, D is 4.2 mm, in some embodiments, D is 7.8 mm, in some embodiments, D is 9.2 mm, and in other possible embodiments, D may be other sizes.

[0028] The present invention installs a cyclone groove 2 on the outer surface of the base body 1 of the rotating brush, and sets the parameter D of the cyclone groove 2 to be greater than 2 mm. When the rotating brush rotates, with the continuous vacuum suction force of the vacuum cleaner, the hair on the ground (such as carpet or floor) collides with the outer surface of the rotating brush according to the vacuum suction force. When it collides with the first groove body 21, since the parameter D of the cyclone groove 2 of the first groove body 21 is set to be greater than 2 mm, the hair can move away from the outer surface of the base body 1 by the action of the first groove body 21. Because D is set large, due to the action of the first groove body 21, the air flow flowing into the first groove body 21 forms a large cyclone, is guided by the inner groove wall of the first groove body 21, and by the action of the suction force of the vacuum cleaner, the air flow blown out into the cyclone groove 2 is blocked by the first groove body 21 and swirls, and is blown out to the outside in the direction away from the base body 1 of the rotating brush, and the hair is blown out to the outside in the direction away from the rotating brush. Thereby, the probability of hair and the like approaching the base body 1 of the rotating brush is effectively reduced, and it is possible to prevent hair and the like from adhering to or entangling with the outer surface of the rotating brush like a conventional vacuum cleaner, and to minimize the contact of hair and the like with the outer surface of the rotating brush. Further, in the cavity 31 of the vacuum cleaner head 3 (refer to FIG. 12), it is directly sucked by the suction port 32, and the possibility of hair entangling with the rotating brush is fundamentally and directly eliminated, effectively solving the problem of hair and the like entangling with the rotating brush.

[0029] In some embodiments, the "large-diameter groove wall 211" in the present invention refers to the region b shown in FIG. 2(a), and the "small-diameter groove wall 212" refers to the region c shown in FIG. 2(a). The large-diameter groove wall 211 is connected to the small-diameter groove wall 212, and the large-diameter groove wall 211 is located on the side away from the axial center line a of the small-diameter groove wall 212. Of course, the large-diameter groove wall 211 and the small-diameter groove wall 212 are not limited to the region b or region c surrounded by the parentheses in FIG. 2(a), and it is only necessary to ensure that the small-diameter groove wall 212 is closer to the side of the axial center line a than the large-diameter groove wall 211.

[0030] In some embodiments, the first groove body 21 is formed on the outer surface of the rotating brush, and is formed by recessing the outer surface of the rotating brush inward (in a direction approaching the axis center).

[0031] In some embodiments, the first edge 213 and the outer surface of the rotating brush are split members. This is to make better use of the structure form of the rotating brush itself. For example, currently, a scraper or a brush is often installed on the surface of the rotating brush, so it is necessary to install a fixing rib 25 at the corresponding position on the outer surface of the rotating brush. Therefore, by utilizing the structure of the fixing rib 25 and installing a groove-shaped structure on the outer surface of the rotating brush, the two can cooperate with each other to form the first groove body 21.

[0032] In other possible embodiments, the first edge 213 may be a member integrated with the outer surface of the rotating brush. That is, the fixing rib 25 may be integrally formed on the outer surface of the rotating brush, or directly recessed within the outer surface of the rotating brush to form the structure of the first groove body 21. The processing and shaping of the overall structure of the rotating brush are facilitated. If it is necessary to install a fixing rib, it can be formed in one step, achieving two birds with one stone, and there is no need to perform the processing step of the first groove body 21 alone.

[0033] In some embodiments of the present invention, as shown in FIG. 1, the first edge 213 is a straight line, the first position 214 is a continuous straight line, and the straight line where the first position 214 is located is parallel to a.

[0034] In some embodiments of the present invention, as shown in FIG. 4, the first edge 213 is a straight line not parallel to a. Thereby, the first edge 213 can overlap a plurality of cylindrical bodies with different diameters having a as the axial center line. In other words, the first edge 213 sequentially obliquely penetrates each cylindrical body with a as the axial center line and different diameters, and the overlapping positions of the first edge 213 and each cylindrical body all overlap at points.

[0035] As shown in FIG. 5(a), in some embodiments of the present invention, each set of cyclone grooves 2 includes two first groove bodies 21 installed along the circumferential direction of the base body 1, and the two first groove bodies 21 of each set of cyclone grooves 2 are installed facing the surface of the base body 1 or in sequence. Here, the "two first groove bodies 21 are installed facing each other" means that the large-diameter groove walls 211 of the two first groove bodies 21 are at positions away from each other, the connection region of the two first groove bodies 21 is the outer surface of the base body 1, the large-diameter groove walls 211 of the two first groove bodies 21 are in a position relationship of being away from each other, and the length direction of the two first groove bodies 21 is along the length direction of the base body 1. Therefore, the air flow is guided by the two first groove bodies 21 to form cyclones in the two first groove bodies 21 respectively, and swirls and blows out in a direction away from the outer surface of the base body 1. Thereby, the first groove body 21 exerts the effect of swirling and boosting pressure, increasing the pressure of the air flow, and the cyclones formed by the air flow in the two first groove bodies 21 are guided by the first groove body 21 to realize the rotation of the air flow (FIG. 6), and rotate and blow out in a direction away from the outer surface of the base body 1 respectively. The air flows swirling and blowing out from the two first groove bodies 21 respectively produce a confluence effect. With respect to the wind force along the circumferential direction of the base body 1, the two first groove bodies 21 produce a mutual canceling effect. With respect to the wind force blowing outward in a direction away from the base body 1, the rotation and guidance of the two first groove bodies 21 produce a confluence effect. Thereby, the possibility of hair getting entangled on the surface of the base body 1 is eliminated, and due to the action of the induced wind force passing through the two first groove bodies 21, the hair is blown near the surface of the base body 1 and enters a "floating state". During the rotation of the rotating brush, the hair in the "floating state" is smoothly sucked into the dust collection port of the vacuum cleaner. Therefore, due to the action of the two cyclone grooves 2, a resultant cyclone force is formed in a direction away from the surface of the rotating brush with respect to the hair, whereby the hair is blown away in a direction away from the surface of the base body 1, and a higher cyclone force can be formed with a lower energy consumption of the vacuum cleaner. A state is achieved where the hair "floats" on the outer surface of the rotating brush, and the problem of hair entanglement on the rotating brush is fundamentally solved.

[0036] Here, "the two first groove bodies 21 are sequentially installed" means that the two first groove bodies 21 are sequentially installed along the circumferential direction of the outer surface of the base body. Thereby, the same effect as when the two first groove bodies 21 are installed oppositely can be produced. And the confluence effect of the air flow is formed, and the hair is blown out in the direction away from the base body 1.

[0037] In other possible embodiments, in the region of the connection position of the two first groove bodies 21, a structural shape that protrudes outward in a direction away from the axial center a of the rotating brush is formed, and a protrusion 23 is formed. Regarding the relationship between the arrangement positions of the large-diameter groove walls 211 of the two first groove bodies 21 and the protrusion 23, along the circumferential direction of the base body 1, the large-diameter groove wall 211 of one first groove body 21, the protrusion 23, and the large-diameter groove wall 211 of the other first groove body 21 are respectively installed.

[0038] Here, the rotation and guidance of the two first groove bodies 21 are used to exemplarily explain the state where the hair "floats" on the surface of the base body 1 and the confluence effect of the air flow by the two first groove bodies 21. As shown by the white arrows in FIG. 6, during the rotation of the rotating brush, along with the dust suction process of the vacuum cleaner, external air enters the dust suction chamber of the vacuum cleaner. When it collides with the first groove body 21, the flow direction of the air flow is as shown by the first air flow 251, the second air flow 252, the third air flow 253, and the fourth air flow 254 in FIG. 6, which is a schematic diagram of the flow direction of the wind guided by the inner wall of the first groove body 21 after the external air flow enters the first groove body 21.

[0039] The second air flow 252 and the third air flow 253 merge. The air flow 255 indicates two air flows that are guided by the respective two first groove bodies 21 and cancel each other out. Therefore, the merging effect of the air flow 26 is formed. After the air flows formed in the regions of the two first groove bodies 21 that approach each other merge to form the air flow 26, the air flow 26 forms a greater acting force that blows outward away from the outer surface of the base body 1. The wind force becomes greater after being guided and merged by the two first groove bodies 21. As a result, the hair in the dust collection chamber is blown to the annular region (i.e., the grid-like annular region in the figure) that floats on the outer surface of the base body 1. Here, an example where the sizes of the two first groove bodies 21 are the same is given. In this case, the resultant force point where the two air flows guided by the two first groove bodies 21 merge is located at point F in the approximately grid-like annular region. Since the sizes of the two first groove bodies 21 match, the resultant force point F is located in the approximately central region outside the two first groove bodies 21. If the sizes of the two first groove bodies 21 do not match, the resultant force point F is located on the side closer to the smaller first groove body 21, but still in the grid-like region of FIG. 6.

[0040] In some cases, the merging point passing through the two first groove bodies 21 is located outside the approximately central region of the two first groove bodies 21 and blows out in a direction away from the base body 1. As the rotary brush rotates, the merging point of the two wind forces guided by the two first groove bodies 21 may also be at a position approaching the side away from the base body 1 of a specific first groove body 21. It is only necessary to ensure that the air flow passing through each set of cyclone grooves 2, after being guided and merged, gives a hair or the like an acting force that blows it away in a direction away from the base body 1.

[0041] The "two first groove bodies 21 are sequentially installed" described in the present application means that the two first groove bodies 21 are sequentially installed on the surface of the rotary brush along the circumferential direction of the rotary brush.

[0042] In some embodiments of the present invention, the region closest to the axial center line a of the small-diameter groove wall 212 becomes the base diameter of the base body 1. Thereby, when the first groove body 21 is installed, the outer diameter of the entire rotating brush does not increase, and the volume of the cleaner head does not become excessive. That is, on the premise of not changing the appearance and size of the entire cleaner as much as possible, the probability of hair getting entangled in the base body 1 of the cleaner is greatly reduced, and the problem of hair entanglement in the rotating brush can be fundamentally solved.

[0043] In some embodiments of the present invention, when there are two cyclone grooves 2 in each group, the two first groove bodies 21 are installed in a mirror image. Here, "installed in a mirror image" means that the sizes of the two first groove bodies 21 are the same and they are installed so as to be symmetric to each other.

[0044] In other possible embodiments, as shown in FIG. 5(b), when there are two cyclone grooves 2 in each group, the sizes of the two first groove bodies 21 do not match, that is, D is not the same. That is, one first groove body 21 is a large groove body, and the other first groove body 21 is a small groove body. The two first groove bodies 21 are not installed completely in a mirror image. The inner walls of the two first groove bodies 21 that are away from each other extend outward toward the axial center line away from the base body 1.

[0045] In other possible embodiments of the present invention, the first edge 213 may be a curve, a wavy line, or a broken line. Correspondingly, the first position 214 is located on the surfaces of a plurality of different cylinders. Since the first edge 213 is non-linear, the first position 214 is a set of a plurality of dot-like positions along the first edge 213. Of course, the first edge 213 may be a straight line, a curve, a wavy line, or a broken line as a whole, and a part of the region may be a straight line, and a part of the region may be at least one of a curve, a wavy line, or a broken line.

[0046] In some embodiments of the present invention, three sets of cyclone grooves 2 are provided and evenly arranged on the outer surface of the rotating brush in equal phase. A separation region is provided between two adjacent sets of cyclone grooves 2. In a possible embodiment, a soft scraping member may be provided in the separation region. For example, the soft scraping member may be a brush, a sponge, a leather strip, or the like. By providing the cyclone grooves 2, the present invention can suspend the hair on the outer surface of the soft scraping member, greatly reducing the possibility of the hair or the like being entangled or embedded in the soft scraping member, and minimizing the possibility of the hair or the like being entangled on the surface of the rotating brush.

[0047] In a possible embodiment, the soft scraping member is installed on the outer surface of the rotating brush via a fixed rib 25. Of course, the soft scraping member may not be installed in the separation region. That is, the separation region only needs to play a role of separating two sets of cyclone grooves 2 to a certain extent. Therefore, when the rotating brush rotates, it is possible to avoid the reaction force formed by the interference between the cyclone grooves 2 of each set and blowing the hair off the surface of the rotating brush.

[0048] Here, the number of sets of cyclone grooves 2 is exemplified as three sets. In other possible embodiments of the present invention, the number of sets of cyclone grooves 2 may be less than three sets (for example, one set or two sets), or more than three sets (for example, four sets, five sets or more).

[0049] As shown in Fig. 7(a), in some embodiments of the present invention, each set of cyclone grooves 2 includes one first groove body 21 and further includes one second groove body 22. The depth of the second groove body 22 is 2 mm or less, and the second groove body 22 is installed opposite to the first groove body 21. The "depth" of the second groove body 22 refers to the distance between the surface C of the cylinder with a as the central axis where the inner edge on the side approaching the rotating brush of the second groove body 22 is located and the surface E of the cylinder with a as the central axis where the inner groove wall on the side approaching the rotating brush of the second groove body 22 is located, that is, the distance between C and E along the radial direction of the substrate 1 is 2 mm or less. For the description of "the second groove body 22 is installed opposite to the first groove body 21" in this application, reference can be made to the related description of "the two first groove bodies 21 are installed opposite to each other".

[0050] In some embodiments, an intermediate part 24 connected to the second groove body 22 and the first groove body 21 respectively is further installed between the second groove body 22 and the first groove body 21. The first groove body 21, the intermediate part 24 and the second groove body 22 are installed in sequence in the circumferential direction of the substrate 1.

[0051] In some embodiments, the second groove body 22 is installed directly on the separating member in a concave shape in the direction away from the first groove body 21 installed in the same set (see Fig. 7(b)). Since the groove bottom can be formed on the separating member, the processing of the rotating brush becomes easy.

[0052] In other possible embodiments, the second groove body 22 is also designed in the same form as the first groove body 21, that is, the outer surface of the rotating brush is recessed towards the center of the rotating brush to directly form the groove bottom. Thereby, the connection and attachment of the separating member and the rotating brush become easy.

[0053] In other possible embodiments, the first groove body 21 may be installed on the outer surface of the rotating brush in a V shape. When the first groove body 21 is installed in a V shape, as shown in FIGS. 8(a) and 8(b), each set of cyclone grooves 2 is installed in a V shape as a whole, and the region of the sharp corner of the V shape is installed in the region of the axial center of the outer surface of the rotating brush. Correspondingly, the first groove body 21 may extend spirally (or linearly) from the sharp corner region to the two ends of the rotating brush. The two ends of the cyclone groove 2 may extend to the two ends of the base body 1 of the rotating brush, or may not be located at the ends of the base body 1.

[0054] The above only lists specific embodiments where the first groove body 21 is linear. Of course, in other possible embodiments, the first groove body 21 may be installed spirally on the outer surface of the rotating brush (see FIGS. 9(a) and 9(b)).

[0055] In some embodiments of the present invention, the cross-section of at least a part of the region of the first groove body 21 is at least one of U-shaped, C-shaped, V-shaped, arc-shaped, semi-circular or right-angled. When the first groove body 21 is V-shaped, its opening may be an acute angle or an obtuse angle. When the first groove body 21 is V-shaped (see FIG. 10), the angle α between the planes where the two groove walls of the first groove body 21 are located is 123° or less. Within this angle range, the air flow guided by the first groove body 21 can blow the hair or the like away from the surface of the rotating brush. For example, when the first groove body 21 is a V-shaped groove, the angle between its two groove walls may be 123°, or 119°, or 116°, or 110°, or 100°, or 95°, or 89°, or 85°, or other angles of 123° or less.

[0056] In some embodiments of the present invention, the shapes of each set of cyclone grooves 2 located on the same rotating brush may be the same or different. For example, one cyclone groove 2 may be V-shaped, and the cyclone groove 2 installed adjacent to it may be C-shaped, U-shaped, or other shapes. When each set of cyclone grooves 2 has two, the shapes of the two first groove bodies 21 of each set of cyclone grooves 2 may be different.

[0057] In some embodiments of the present invention, the cross-section of the second groove body 22 is at least one of U-shaped, C-shaped, V-shaped (which may be a narrow-mouth V-shaped or a wide-mouth V-shaped shown in FIG. 10), arc-shaped, L-shaped, semi-circular or right-angled. When the second groove body 22 is V-shaped, the opening angle of the second groove body 22 is 123° or less.

[0058] In the embodiment shown in FIG. 10, the surfaces of the two first groove bodies 21 on the side away from each other are not curved surfaces but inclined surfaces that incline in the direction away from each other.

[0059] In some embodiments, the intermediate portion 24 located in the central region of the two first groove bodies 21 is formed by utilizing the original outer contour surface (cylindrical surface) of the base body 1. The original structure of the base body 1 of the rotary brush is skillfully utilized, and the processing becomes convenient.

[0060] In addition, since the present invention utilizes the small inner ring structure of the base body 1 as the region of the intermediate portion 24 of the first groove body 21, it is not necessary to increase the outer size of the rotary brush in order to install the large-sized cyclone groove 2. For example, it is expected that the overall outer size of the base body 1 of the rotary brush is set to about 50 mm. If it is necessary to continuously install a cyclone groove in a 50 mm outer diameter size structure, in order to install the groove wall structure of the cyclone groove, the maximum diameter of the base body 1 of the rotary brush may reach 60 mm or more. It cannot be arbitrarily matched with the conventional cleaning structure, and the cleaning head becomes heavier and the operation is difficult.

[0061] In some embodiments, the second position 215 may have a smooth structure such as a smooth curved surface, inclined surface or groove surface. Thereby, the processing of the rotary brush becomes convenient.

[0062] In other possible embodiments, the second position 215 may be a serrated surface, or a structure having a sheet-like structure, microgrooves, holes, pits, etc. arranged at intervals. As shown in FIG. 11, an example is given to illustrate that several sheet-like structures 28 are installed at the second position 215. The sheet-like structures 28 are arranged in order along the length direction of the second position 215, and the sheet-like structures 28 are installed in a direction perpendicular to the central axis a or at a predetermined angle. Each sheet-like structure 28 can achieve the effect of guiding air.

[0063] In some embodiments of the present invention, as shown in FIG. 2(b), the second groove body 22 may not be installed, and an inclined surface 27 may be installed at a position corresponding to the second groove body 22. The edge on the side of the inclined surface 27 approaching the base body 1 extends toward the side approaching the first groove body 21 installed as a set with the inclined surface 27. Therefore, when swirling under the guidance of one first groove body 21, it is also possible to blow hair and the like to the area approaching the surface of the base body 1.

[0064] The present invention further provides a floor brush head of a vacuum cleaner including the rotating brush described above.

[0065] The present invention further provides a vacuum cleaner including the floor brush head of the vacuum cleaner described above.

[0066] The above embodiments are only for explaining the technical concept and features of the present invention, and the purpose is for those skilled in the art to understand and implement the content of the present invention. Thus, the protection scope of the present invention cannot be limited, and any equivalent changes or modifications made based on the essence of the spirit of the present invention should be included within the protection scope of the present invention.

Description of Reference Numerals

[0067] 1. Base body a. Axial center line 2. Cyclone groove 21. First groove body 211. Large-diameter groove wall 212. Small-diameter groove wall 213. First edge 214. First position 215. Second position 22. Second groove body 23. Protrusion 24. Intermediate part 251. First air flow 252. Second air flow 253. Third air flow 254. Fourth air flow 255. Fifth air flow 25. Fixed rib 26. Air flow F. Resultant force point 27. Inclined surface 3. Vacuum cleaner head 31. Cavity 32. Dust suction port

Claims

1. A rotating brush including a base body, the axial center line of the base body being a, At least one set of cyclone grooves is provided on the outer surface of the substrate, each set of the cyclone grooves comprising: at least one first groove body; an inner groove wall of the first groove body on a side away from the a is a large diameter groove wall, and an inner groove wall of the first groove body on a side closer to the a is a small diameter groove wall; an edge of the large diameter groove wall away from a is a first edge, at least a part of the region of the first edge overlaps with a surface of at least one cylinder having a center line in the axial direction at a, and this overlapping region is a first position, and at least a part of the region of the small diameter groove wall along the length direction of a overlaps with a surface of a cylinder having a center line in the axial direction at a, and this overlapping region is a second position, A rotating brush characterized in that a surface of a cylinder passing through the first position and having a center line in the axial direction at a is designated as A, a surface of a cylinder passing through the second position and having a center line in the axial direction at a is designated as B, and a distance D between A and B perpendicular to a and along the radial direction of the base is greater than 2 mm.

2. 2. The rotating brush according to claim 1, wherein at least a portion of the first edge is straight and at least a portion of the first position is straight.

3. 2. The rotary brush according to claim 1, wherein at least a portion of the first edge is a curved line, a wavy line, or a polygonal line.

4. The rotating brush according to claim 1, characterized in that each set of cyclone grooves includes two of the first groove bodies arranged in sequence along the circumferential direction of the base, and the two first groove bodies are arranged opposite to each other or in sequence on the surface of the base.

5. 5. The rotary brush according to claim 4, wherein the two first groove bodies of each set of cyclone grooves are arranged in mirror image.

6. 6. The rotary brush according to claim 5, wherein the mutually approaching regions of the two first groove bodies protrude in a direction away from the axial center of the rotary brush.

7. 5. The rotary brush according to claim 4, wherein the sizes of the two first groove bodies are not the same, and the D is not the same.

8. 2. The rotary brush according to claim 1, wherein the mutually spaced inner walls of the two first groove bodies extend toward an axial centerline away from the base body.

9. 2. The rotating brush according to claim 1, wherein each set of the cyclone grooves includes one first groove body and further includes one second groove body, the depth of the second groove body is less than or equal to 2 mm, and the second groove body is installed opposite to the first groove body.

10. The rotary brush according to claim 9, wherein the second groove body is disposed on an outer surface of the base.

11. 10. The rotary brush according to claim 9, further comprising a connecting member connected to an outer surface of the base, the second groove body being disposed on the connecting member.

12. The rotating brush of claim 1, characterized in that a cross section of at least a portion of the first groove body is at least one of U-shaped, C-shaped, V-shaped, arc-shaped, L-shaped, semicircular, and right-angled, and when the first groove body is V-shaped, an opening angle α of the first groove body does not exceed 123°.

13. 10. The rotating brush of claim 9, wherein the cross section of the second groove body is at least one of U-shaped, C-shaped, V-shaped, arc-shaped, semicircular, and right-angled, and when the second groove body is V-shaped, an opening angle α of the second groove body does not exceed 123°.

14. 2. The rotary brush according to claim 1, wherein the first groove body is arranged on the outer surface of the base body in a spiral, V-shape or linear shape.

15. The rotary brush according to claim 14, characterized in that when the first groove body is installed linearly, the first groove body is installed in a direction parallel to the axial center line of the base body or in a direction having a spatial angle therewith.

16. 10. The rotary brush of claim 9, wherein the mutually spaced inner walls of the first groove body and the second groove body extend toward an axial centerline away from the base.

17. A floor brush head of a vacuum cleaner comprising a rotating brush according to any one of claims 1 to 16.

18. 20. A vacuum cleaner comprising the vacuum floor brush head of claim 17.

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