A roller brush device and a vacuum cleaner

Abstract

The present invention relates to the technical field of household appliances, and in particular to a roller brush device and a vacuum cleaner. The roller brush device proposed by the present invention includes a roller brush body, a first roller brush joint and a second roller brush joint. Among them, the first roller brush joint and the second roller brush joint are respectively arranged at both ends of the roller brush body. The circumferential surfaces of the first roller brush joint and the second roller brush joint are both provided with receiving grooves, and a notch is provided on the side wall of the receiving groove away from the roller brush body. The receiving groove in the present invention can play a role in storing sundries, ensuring the normal operation of the roller brush device for a long time. When the sundries accumulate to a certain extent, the operator can apply force to the sundries in the receiving groove through the hand or a tool passing through the notch, so that the sundries can be easily taken out of the receiving groove, facilitating the cleaning of the sundries. By applying the above-mentioned roller brush device, the vacuum cleaner proposed by the present invention can conveniently clean the sundries.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly relates to a roller brush device and a vacuum cleaner. Background Art

[0002] When a vacuum cleaner works, an electric motor drives blades to rotate at a high speed, generating a negative air pressure in a sealed housing. Then, the vacuum is used to generate suction to inhale air and dust debris, which flows through various filters, and finally achieves the effect of filtering the sundries in the air and cleaning indoor devices.

[0003] The roller brush of the vacuum cleaner includes a roller brush body and a roller brush end cap. The roller brush end cap is wrapped around the end of the roller brush body, and a receiving space for accommodating a rotating shaft and a bearing is formed between the roller brush end cap and the end of the roller brush body. In order to ensure the normal rotation of the roller brush body, the roller brush end cap and the roller brush body are in a clearance fit in the radial direction. However, during the use of the vacuum cleaner, sundries such as hair are likely to enter the receiving space through this gap, and the sundries are wound around the rotating shaft and the bearing, which easily causes the power mechanism for driving the rotation of the rotating shaft to be blocked, affecting the overall service life of the roller brush.

[0004] To solve the above technical problems, a conventional roller brush device is provided with a sundry storage groove on the outer periphery of the roller brush body. Sundries will first enter the sundry storage groove, which can avoid the sundries from being wound around the rotating shaft and the bearing to a certain extent, prevent the blockage of the power mechanism, and ensure the overall service life of the roller brush. However, the sundry storage groove with such a structure is not convenient for the operator to clean the sundries.

[0005] Based on this, there is an urgent need to invent a roller brush device that can facilitate the cleaning of sundries. Summary of the Invention

[0006] The first object of the present invention is to propose a roller brush device that can facilitate the cleaning of sundries.

[0007] The second object of the present invention is to propose a vacuum cleaner that can facilitate the cleaning of sundries by applying the above roller brush device.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A roller brush device includes a roller brush body. First roller brush joints and second roller brush joints are respectively arranged at two ends of the roller brush body. Receiving grooves are formed on the circumferential surfaces of the first roller brush joint and the second roller brush joint, and notches are formed on the side walls of the receiving grooves away from the roller brush body.

[0010] Preferably, the side wall is rounded at the entrance position of the notch.

[0011] Preferably, the depth of the notch is 4 mm to 6 mm.

[0012] Preferably, the width of the notch is 1.5 mm to 3 mm.

[0013] Preferably, the receiving groove is an annular groove.

[0014] Preferably, the width of the receiving groove is 2 mm to 4 mm.

[0015] Preferably, the depth of the receiving groove is the same as the depth of the notch.

[0016] Preferably, the first roller brush joint and the second roller brush joint are respectively detachably connected to the roller brush body.

[0017] Preferably, the roller brush device further includes a first roller brush cover, and the first roller brush cover can block the opening of the receiving groove of the first roller brush joint.

[0018] Preferably, the first roller brush cover includes an end cover and a peripheral wall, and a gap is formed between the peripheral wall and the outer edge of the side wall of the first roller brush joint.

[0019] Preferably, the gap is 0.5 mm to 1 mm.

[0020] Preferably, the first roller brush cover includes a support shaft, and the cross-section of the support shaft is polygonal.

[0021] Preferably, the cross-section of the support shaft is regular polygonal.

[0022] Preferably, the distance from the outer edge of the side wall of the second roller brush joint to the center line of the second roller brush joint is 38 mm to 42 mm.

[0023] Preferably, a receiving cavity is formed by inward depression at the end of the second roller brush joint, and a tooth part is arranged inside the receiving cavity.

[0024] Preferably, the tooth part includes at least two meshing teeth.

[0025] Preferably, at least two of the meshing teeth are evenly distributed along the circumferential direction of the receiving cavity.

[0026] Preferably, the number of the meshing teeth is six.

[0027] Preferably, the height of the meshing teeth is 3 mm to 6 mm.

[0028] Preferably, the depth of the receiving cavity is 12 mm to 16 mm.

[0029] Preferably, the second roller brush joint is further provided with a receiving hole, and the receiving cavity is communicated with the receiving hole.

[0030] Preferably, the depth of the receiving hole is 5 mm to 7 mm.

[0031] Preferably, the roller brush body includes a main body portion and a brush portion.

[0032] Preferably, an installation groove is formed on the circumferential surface of the main body portion, the installation groove is spirally arranged along the axial direction of the main body portion, and the brush portion is arranged in the installation groove.

[0033] Preferably, the installation groove is a T-shaped groove.

[0034] Preferably, the number of the brush portions is multiple, and adjacent brush portions are arranged at equal intervals.

[0035] Preferably, the brush portion includes a leather strip and a brush.

[0036] Preferably, the leather strip and the brush are alternately arranged along the circumferential direction of the main body portion.

[0037] Preferably, the brush portion covers the outer circumference of the main body portion.

[0038] Preferably, the brush portion includes bristles, and a first distance L1 from the axis of the main body portion to the ground is 0.5 mm to 1 mm smaller than a second distance L2 from the axis of the main body portion to the free end of the bristles.

[0039] Preferably, the brush portion includes a first brush cloth and a second brush cloth which are spliced, the material of the first brush cloth is an antistatic material, and the material of the second brush cloth is nylon.

[0040] Preferably, the ratio of the area occupied by the first brush cloth to the area occupied by the second brush cloth is 1 / 8 to 1 / 6.

[0041] Preferably, the roller brush device further includes a counterweight rod, and the counterweight rod is arranged inside the roller brush body.

[0042] Preferably, the length of the roller brush device is 100 mm to 200 mm.

[0043] A vacuum cleaner includes the roller brush device as described above.

[0044] The beneficial effects of the present invention are as follows:

[0045] The roller brush device proposed by the present invention includes a roller brush body, a first roller brush joint and a second roller brush joint. Among them, the first roller brush joint and the second roller brush joint are respectively arranged at both ends of the roller brush body, and accommodation grooves are formed on the circumferential surfaces of the first roller brush joint and the second roller brush joint. A notch is formed on the side wall of the accommodation groove away from the roller brush body. The accommodation groove in the present invention can play a role in storing sundries, ensuring the normal operation of the roller brush device for a long time. When the sundries accumulate to a certain extent, the operator can apply force to the sundries in the accommodation groove through the notch with hands or tools, so that the sundries can be easily taken out of the accommodation groove, facilitating the cleaning of the sundries.

[0046] The vacuum cleaner proposed by the present invention can conveniently clean sundries by applying the above-mentioned roller brush device. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the content of the embodiments of the present invention and these drawings.

[0048] Figure 1 is a schematic structural view of the roller brush device provided in the first embodiment of the present invention in one direction;

[0049] Figure 2 is a schematic structural view of the roller brush device provided in the first embodiment of the present invention in another direction;

[0050] Figure 3 is an exploded view of the roller brush device provided in the first embodiment of the present invention;

[0051] Figure 4 is a schematic structural view of the first roller brush joint provided in the first embodiment of the present invention;

[0052] Figure 5 is a schematic structural view of the second roller brush joint provided in the first embodiment of the present invention;

[0053] Figure 6 is a cross-sectional view of the second roller brush joint provided in the first embodiment of the present invention;

[0054] Figure 7 is a front view of the second roller brush joint provided in the first embodiment of the present invention;

[0055] Figure 8 is a cross-sectional view of the roller brush device provided in the first embodiment of the present invention;

[0056] Figure 9 is Figure 8 a partial enlarged view of part A in

[0057] Figure 10 is a schematic structural view of the first roller brush cover provided in the first embodiment of the present invention;

[0058] Figure 11 is a front view of the first roller brush cover provided in the first embodiment of the present invention;

[0059] Figure 12 is a schematic structural view of a kind of roller brush body provided in the first embodiment of the present invention;

[0060] Figure 13 It is a schematic structural diagram of another roller brush body provided in the second embodiment of the present invention;

[0061] Figure 14 It is a diagram showing the positional relationship between another roller brush body provided in the second embodiment of the present invention and the ground.

[0062] The markings in the figure are as follows:

[0063] 1 - roller brush device; 2 - ground;

[0064] 11 - roller brush body; 12 - first roller brush joint; 13 - second roller brush joint; 14 - first roller brush cover; 15 - mounting shell; 16 - counterweight rod; 17 - gap; 18 - driving part; 19 - second roller brush cover;

[0065] 111 - main body part; 112 - brush part; 121 - first receiving groove; 131 - second receiving groove; 132 - tooth part; 133 - receiving cavity; 134 - receiving hole; 141 - end cover; 142 - peripheral wall; 143 - support shaft;

[0066] 1111 - mounting groove; 1121 - bristles; 1122 - first brush cloth; 1123 - second brush cloth; 1211 - first side wall; 1212 - first notch; 1311 - second side wall; 1312 - second notch; 1321 - meshing teeth. Specific implementation manners

[0067] In order to enable those skilled in the art to better understand the technical solutions of this embodiment, the technical solutions of this embodiment will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0068] Embodiment 1

[0069] When the vacuum cleaner works, the motor drives the blades to rotate at high speed, generating air negative pressure in the sealed housing, and then using the vacuum to generate suction to inhale air and dust debris, and flowing through various filters, finally achieving the effect of filtering the sundries in the air and cleaning the indoor devices. Figure 1 It is a schematic structural diagram of the roller brush device 1 provided in this embodiment in one direction, Figure 2 It is a schematic structural diagram of the roller brush device 1 provided in this embodiment in another direction. As Figure 1 and Figure 2 shown, this embodiment provides a roller brush device 1 that can facilitate the cleaning of sundries and a vacuum cleaner applying the roller brush device 1.

[0070] Figure 3 It is an exploded view of the roller brush device 1 provided in this embodiment. As Figure 3As shown in the figure, the brush roller device 1 provided in this embodiment includes a brush roller body 11, a first brush roller joint 12, a second brush roller joint 13, a first brush roller cover 14, a second brush roller cover 19, and a mounting shell 15. Among them, the brush roller body 11, the first brush roller joint 12, the second brush roller joint 13, the first brush roller cover 14, and the second brush roller cover 19 can all be arranged in the mounting shell 15. One end of the brush roller body 11 is provided with a first brush roller joint 12, and the other end is provided with a second brush roller joint 13. The first brush roller joint 12 is rotatably connected to the first brush roller cover 14, and the second brush roller joint 13 is rotatably connected to the second brush roller cover 19. The first brush roller cover 14 and the second brush roller cover 19 are respectively fixed in the mounting shell 15. Through the above settings, the rotation of the brush roller body 11 relative to the mounting shell 15 can be realized. Specifically, the length of the brush roller device 1 in this embodiment is 100 mm to 200 mm, and the effect of installing the brush roller device 1 into the mounting shell 15 can be achieved.

[0071] Figure 4 is a schematic structural diagram of the first brush roller joint 12 provided in this embodiment. As Figure 4 shown, a first receiving groove 121 is formed on the circumferential surface of the first brush roller joint 12 provided in this embodiment. When the brush roller device 1 is running, the first receiving groove 121 can play a role in receiving sundries, ensuring the long-term normal operation of the brush roller device 1. In addition, a first notch 1212 is formed on the first side wall 1211 ( Figure 4 the leftmost side wall shown in the figure) of the first receiving groove 121 away from the brush roller body 11. When the sundries accumulate to a certain extent, the operator can apply force to the sundries in the first receiving groove 121 through the hand or a tool passing through the first notch 1212, so that the sundries can be easily taken out of the first receiving groove 121, facilitating the cleaning of the sundries.

[0072] Specifically, the depth of the first receiving groove 121 is 4 mm to 6 mm, which can store a relatively large amount of sundries without being too deep, facilitating the operator to take out the sundries from the first receiving groove 121. In addition, the depth of the first notch 1212 is the same as that of the first receiving groove 121, and the operator can clean the sundries at the bottom of the first receiving groove 121 through the first notch 1212. The width of the first receiving groove 121 is 2 mm to 4 mm, which can store a relatively large amount of sundries. The width of the first notch 1212 is 1.5 mm to 3 mm, which is slightly larger than the width of an average operator's index finger. Without operating tools, the operator can insert the index finger into the first notch 1212 to clean the sundries in the first receiving groove 121, which is simple and convenient. In addition, due to the certain width of the first receiving groove 121, the operator can hold a cleaning tool to scrape the sundries within a certain range in the first receiving groove 121 to achieve better cleaning of the first receiving groove 121. In addition, the side of the first notch 1212 is provided with a rounded corner to prevent the operator from scratching the finger when cleaning the sundries by hand. Specifically, the first receiving groove 121 provided in this embodiment is an annular groove, which can accommodate the sundries to the maximum extent and reduce the replacement frequency of the first receiving groove 121 under the condition that the width and height of the receiving groove are certain.

[0073] Figure 5 is a schematic structural view of the second brush roller joint 13 provided in this embodiment. Figure 6 is a cross-sectional view of the second brush roller joint 13 provided in this embodiment; Figure 7 is a front view of the second brush roller joint 13 provided in this embodiment; as Figures 5 - 7 shown, the structure of the second brush roller joint 13 provided in this embodiment is similar to Figure 4 the first brush roller joint 12 therein. A second receiving groove 131 is formed on the circumferential surface of the second brush roller joint 13, and a second notch 1312 is formed on the second side wall 1311 of the second receiving groove 131 away from the brush body 11 ( Figure 5 the right side wall shown). The second notch 1312 can also facilitate the cleaning of sundries. The difference between the second brush roller joint 13 and the first brush roller joint 12 is that: an accommodating cavity 133 is formed by the inward depression of the end of the second brush roller joint 13, Figure 3 the output end of the driving part 18 in Figure 3 extends into the accommodating cavity 133, and a tooth part 132 is arranged inside the accommodating cavity 133. The tooth part 132 is engaged with the tooth part on the driving part 18 in Figure 3 . When the driving part 18 rotates, it can drive the second brush roller joint 13 and the brush body 11 to rotate synchronously.

[0074] In addition, the tooth portion 132 is provided inside the second roller brush joint 13. The depth of the accommodation cavity 133 is 12 mm to 16 mm. A part of the driving portion 18 can be inserted inside the second roller brush joint 13. On the basis of ensuring the stable connection between the second roller brush joint 13 and the driving portion 18, the length of the roller brush device 1 in the axial direction is effectively reduced, and a roller brush device 1 with a smaller size is obtained.

[0075] In addition, the second roller brush joint 13 is further provided with an accommodation hole 134 communicating with the accommodation cavity 133. The accommodation hole 134 is used to accommodate the positioning post at the free end of the driving portion 18. The depth of the accommodation hole 134 is 5 mm to 7 mm. By inserting the positioning post into the accommodation hole 134, the quick positioning of the driving portion 18 to the second roller brush joint 13 is realized. Specifically, the second accommodation groove 131 provided in this embodiment is an annular groove. When the width and height of the accommodation groove are fixed, it can accommodate sundries to the maximum extent and reduce the replacement frequency of the second accommodation groove 131.

[0076] Specifically, the tooth portion 132 includes six meshing teeth 1321. The six meshing teeth 1321 match the six teeth on the output end of the driving portion 18. Since the number of meshing teeth 1321 is relatively large, relatively stable meshing between the driving portion 18 and the second roller brush joint 13 can be achieved. When the driving portion 18 rotates, the vibration of the second roller brush joint 13 can be reduced. In other embodiments, the number of meshing teeth 1321 can also be three, four or other numbers.

[0077] In addition, the six meshing teeth 1321 are evenly distributed along the circumferential direction of the accommodation cavity 133, and the six teeth on the output end of the driving portion 18 are also evenly distributed along the circumferential direction. When the operator inserts the output end of the driving portion 18 into the accommodation cavity 133, the relative position relationship between the tooth portion 132 and the driving portion 18 in the circumferential direction does not need to be considered, which can effectively improve the installation efficiency of the driving portion 18 and the second roller brush joint 13. Specifically, the height of the meshing teeth 1321 is 3 mm to 6 mm, so that the meshing area between the meshing teeth 1321 and the teeth on the driving portion 18 is relatively large, and the phenomenon of tooth breakage is not likely to occur.

[0078] In addition, the distance from the outer edge of the side wall of the second roller brush joint 13 in this embodiment to the center line of the second roller brush joint 13 is 38 to 42 mm. The second roller brush joint 13 Figure 3 cooperates with the second roller brush cover 19 therein to form a gap of 0.5 mm to 1 mm, which can not only ensure that impurities enter the second accommodation groove 131, but also avoid the volume of the roller brush device 1 being too large due to an overly large gap size.

[0079] Such as Figures 5 - 7As shown, the number of the second notches 1312 is four, and the four second notches 1312 are circumferentially distributed along the second brush roller joint 13, which can achieve comprehensive cleaning of the annular groove-shaped second receiving groove 131 without dead corners. In addition, the four second notches 1312 are evenly distributed along the circumference of the second brush roller joint 13, which can further improve the cleaning coverage of the second receiving groove 131. Of course, the number of the second notches 1312 can also be two, three or more.

[0080] As Figures 4 - 7 shown, the first side wall 1211 at the entrance position of the first notch 1212 and the second side wall 1311 at the entrance position of the second notch 1312 are both rounded, so that when the operator cleans the sundries, he can avoid being scratched by the possible sharp corners of the first side wall 1211 or the second side wall 1311.

[0081] Figure 8 is a cross-sectional view of the brush roller device 1 provided in this embodiment. As Figure 8 shown, the first brush roller joint 12 and the second brush roller joint 13 are respectively detachably connected to the brush roller body 11. When the sundries fill the first receiving groove 121 and the second receiving groove 131, the operator can take out the brush roller by opening the first brush roller cover 14 and clean the sundries in the first brush roller joint 12 and the second brush roller joint 13, which is convenient to operate. In addition, the first brush roller joint 12 and the second brush roller joint 13 filled with sundries can be respectively replaced with new first brush roller joint 12 and second brush roller joint 13 to realize the quick replacement of the first brush roller joint 12 and the second brush roller joint 13 and improve the cleaning efficiency of the brush roller device 1.

[0082] In addition, the brush roller device 1 provided in this embodiment further includes a counterweight rod 16, which is arranged inside the brush roller body 11, and both ends of the counterweight rod 16 are respectively inserted into the first brush roller joint 12 and the second brush roller joint 13 to realize the synchronous rotation of the counterweight rod 16 and the brush roller body 11. Since the counterweight rod 16 is arranged inside the brush roller body 11, the centrifugal force of the brush roller body 11 during rotation can be increased, the amount of dust taken away by the brush roller body 11 can be increased, which is beneficial to the absorption of dust by the vacuum cleaner and improves the cleaning ability of the vacuum cleaner.

[0083] Figure 9 is Figure 8 the partial enlarged view at A in Figure 10 is a schematic structural view of the first brush roller cover 14 provided in this embodiment, Figure 11 is the front view of the first brush roller cover 14 provided in this embodiment. As Figures 9 - 10As shown, the first brush cover 14 provided in this embodiment can block the opening of the receiving groove of the first brush joint 12. The first brush cover 14 includes an end cover 141 and a peripheral wall 142. A gap 17 is formed between the outer edge of the peripheral wall 142 and the side wall of the first brush joint 12. Dust and debris can enter the first receiving groove 121 through this gap 17, realizing the collection of dust and debris. Due to the existence of the gap 17, during the operation of the brush device 1, it can ensure that the brush body 11 rotates smoothly, realizing the normal operation of the brush device 1. Specifically, the gap 17 is 0.5 mm to 1 mm, which can not only ensure that impurities enter the first receiving groove 121, but also avoid the brush device 1 having too large a volume due to the too large size of the gap 17.

[0084] As Figure 10 and Figure 11 shown, a support shaft 143 is further provided on the outer surface of the end cover 141. The cross-section of the support shaft 143 is a regular hexagon. An installation hole with the same cross-section as the support shaft 143 is provided on the installation shell 15. The support shaft 143 is inserted into the installation hole, which can prevent the first brush cover 14 from rotating relative to the installation shell 15. The adjacent two sides of the regular hexagon are transitioned by an arc, which can avoid stress concentration at the intersection of the adjacent two surfaces of the support shaft 143 and improve the service life of the support shaft 143. In other embodiments, the cross-section of the support shaft 143 can also be set as a triangular, quadrilateral or other polygonal structure, which can also effectively prevent the first brush cover 14 from rotating relative to the installation shell 15.

[0085] Figure 12 is a schematic structural diagram of the main body portion 111 provided in this embodiment. As Figure 12 shown, the brush body 11 provided in this embodiment includes a main body portion 111 and a brush portion 112. An installation groove 1111 is provided on the circumferential surface of the main body portion 111. The installation groove 1111 is arranged in a spiral shape along the axial direction of the main body portion 111. The brush portion 112 is arranged in the installation groove 1111. During the rotation of the brush body 11, it can drive the gas in the installation shell 15 to rotate in a spiral shape, increasing the amount of dust carried away by the brush body 11, facilitating the absorption of dust by the vacuum cleaner, and improving the cleaning ability of the vacuum cleaner. In addition, the brush portion 112 and the main body portion 111 are detachably connected. Since the brush portion 112 is a consumable, when the brush portion 112 is aged or damaged, a new brush portion 112 can be replaced for continued use.

[0086] As Figure 12 shown, the installation groove 1111 provided in this embodiment is a T-shaped groove. A clamping block is provided on one side surface of the brush portion 112. The clamping block is clamped inside the T-shaped groove, and the other side surface of the brush portion 112 extends out at the opening of the T-shaped groove. Through the cooperation of the clamping block and the T-shaped groove, the brush portion 112 is fixed to the main body portion 111 in the radial direction.

[0087] Specifically, the present embodiment provides six mounting slots 1111 on the main body 111, each mounting slot 1111 corresponds to a brush portion 112 (two brush portions 112 are not shown), and adjacent brush portions 112 are arranged at equal intervals along the circumferential direction, so that the main body 111 can be subjected to uniform force. When the main body 111 rotates, it can rotate evenly, so that each brush portion 112 has a good cleaning effect, thereby improving the cleaning effect of the roller brush device 1. In other embodiments, the number of mounting slots 1111 can also be two, three or more.

[0088] Specifically, the brush portion 112 includes a leather strip and a brush, wherein the leather strip beats the blanket to loosen dust or debris from the fur of the blanket, and the fine hair on the brush is inserted into the fur of the blanket to remove the loose dust or debris. The cleaning effect of the roller brush device 1 is improved by the coordinated use of the leather strip and the brush. The leather strip and the brush are alternately arranged along the circumference of the main body 111 to achieve alternating beating and scraping of the blanket, thereby obtaining a better blanket cleaning effect. In other embodiments, the brush portion 112 can also be set to other materials to achieve cleaning in different occasions.

[0089] Embodiment 2

[0090] Figure 13 is a structural schematic diagram of a roller brush body 11 provided in this embodiment, such as Figure 13 As shown, the roller brush device 1 provided in this embodiment has a substantially same structure as the roller brush device 1 in the first embodiment, with the main difference being that the brush portion 112 is wrapped around the outer periphery of the main body portion 111, and the brush portion 112 includes bristles 1121, thereby enabling cleaning of the floor.

[0091] Specifically, the brush part 112 includes a first brush cloth 1122 and a second brush cloth 1123 that are spliced ​​together, wherein the material of the first brush cloth 1122 is an antistatic material. In general, when the vacuum cleaner is in working state, the friction between the brush part 112 and the ground will generate static electricity, and the static electricity will be transmitted to the electrical components in the vacuum cleaner along with the airflow or the parts in the vacuum cleaner, thereby causing the failure of electrical components such as motors or battery packs, resulting in the vacuum cleaner being unable to work normally. By selecting the material of the first brush cloth 1122 as an antistatic material, the generation of static electricity can be avoided from the source, ensuring the effective use of the electrical components in the vacuum cleaner for a long time, and improving the service life of the vacuum cleaner. In addition, the electrical components in the vacuum cleaner of this embodiment will also be further antistatically treated, such as setting an antistatic layer, etc., which can make the antistatic effect of the vacuum cleaner better. Specifically, the antistatic material in this embodiment is formed by adding an antistatic agent to the nylon raw material, and then molding nylon with antistatic effect, so that the first brush cloth 1122 not only has the effect of preventing the generation of static electricity, but also can have a better cleaning effect on the floor.

[0092] Among them, the material of the second brush cloth 1123 is nylon. When the first brush cloth 1122 and the second brush cloth 1123 roll onto the floor, it can form an effect similar to wiping the floor with a dry towel, achieving a better cleaning effect on the floor. In addition, due to the certain hardness of nylon, even if the first brush cloth 1122 and the second brush cloth 1123 roll onto the bottom plate for a long time, the long service life of the first brush cloth 1122 and the second brush cloth 1123 can be ensured.

[0093] Specifically, since the hardness of the first brush cloth 1122 is greater than that of the second brush cloth 1123, if the proportion of the first brush cloth 1122 is too large, it will cause a large noise when the vacuum cleaner works; if the proportion of the first brush cloth 1122 is too small, the antistatic effect will not be obvious. The ratio of the area occupied by the first brush cloth 1122 to the area occupied by the second brush cloth 1123 is 1 / 8 - 1 / 6, which can not only ensure that the vacuum cleaner does not generate a large noise during operation, but also produce sufficient antistatic effect.

[0094] Specifically, both the first brush cloth 1122 and the second brush cloth 1123 are strip-shaped, and the first brush cloth 1122 and the second brush cloth 1123 are spirally wound and fixed on the outer periphery of the main body 111, making the installation of the first brush cloth 1122 and the second brush cloth 1123 simple and fast.

[0095] Figure 14 It is another positional relationship diagram of the roller brush body 11 and the ground 2 provided by the present invention. Specifically, the brush part 112 includes bristles 1121. The first distance L1 from the axis of the main body 111 to the ground is 0.5 mm - 1 mm smaller than the second distance L2 from the axis of the main body 111 to the free end of the bristles 1121, which can not only ensure a certain interference between the bristles 1121 and the ground 2, playing a better cleaning role on the ground 2, but also ensure better sound insulation and shock absorption effects.

[0096] Note that the above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A roller brush device (1), comprising a roller brush body (11), characterized in that, Both ends of the brush roller body (11) are respectively provided with a first brush roller joint (12) and a second brush roller joint (13). Accommodating grooves are formed on the circumferential surfaces of the first brush roller joint (12) and the second brush roller joint (13), and notches are formed on the side walls of the accommodating grooves far away from the brush roller body (11). The brush roller device (1) further includes a first brush roller cover (14), and the first brush roller cover (14) can block the opening of the accommodating groove of the first brush roller joint (12). The first brush roller cover (14) includes an end cover (141) and a peripheral wall (142), and a gap (17) is formed between the peripheral wall (142) and the outer edge of the side wall of the accommodating groove on the first brush roller joint (12) close to the brush roller body (11). The size of the gap (17) is smaller than the width of the accommodating groove. In the radial and axial directions of the brush roller body (11), the end of the outer edge of the first brush roller joint (12) forming the gap (17) with the peripheral wall (142) is closer to the brush roller body (11) than the end of the peripheral wall (142).

2. The roller brush device (1) according to claim 1, characterized in that, The side wall is rounded at the entrance position of the notch; the notches are evenly distributed in the circumferential direction.

3. The roller brush device (1) according to claim 1, characterized in that, The depth of the notch is 4 mm to 6 mm.

4. The roller brush device (1) according to claim 1, characterized in that, The width of the notch is 1.5 mm to 3 mm.

5. The roller brush device (1) according to claim 1, characterized in that, The accommodating groove is an annular groove.

6. The rotary brush device (1) according to claim 1, characterized in that, The width of the accommodating groove is 2 mm to 4 mm.

7. The brush roll device (1) according to claim 1, characterized in that, The depth of the accommodating groove is the same as the depth of the notch.

8. The rotatable brush device (1) according to claim 1, characterized in that, The first brush roller joint (12) and the second brush roller joint (13) are respectively detachably connected to the brush roller body (11).

9. The rotatable brush device (1) according to claim 1, wherein, The gap (17) is 0.5 mm to 1 mm.

10. The roller brush device (1) according to claim 1, characterized in that, The first brush roller cover (14) includes a support shaft (143), and the cross-section of the support shaft (143) is polygonal.

11. The roller brush device (1) according to claim 10, characterized in that, The cross-section of the support shaft (143) is a regular polygon, and the adjacent two sides of the regular polygon are transitioned by an arc.

12. The roller brush device (1) according to any one of claims 1 to 8, characterized in that, The distance from the outer edge of the side wall of the second brush roller joint (13) to the center line of the second brush roller joint (13) is 38 mm to 42 mm.

13. The roller brush device (1) according to any one of claims 1 to 8, characterized in that, The end of the second brush roller joint (13) is recessed inward to form an accommodating cavity (133), and a tooth portion (132) is arranged inside the accommodating cavity (133). The output end of the driving portion (18) of the brush roller body (11) extends into the accommodating cavity (133), and the tooth portion (132) is engaged with the tooth portion on the driving portion (18).

14. The roller brush device (1) according to claim 13, characterized in that, The tooth portion (132) includes at least two meshing teeth (1321). At least two of the meshing teeth (1321) are matched with the teeth on the output end of the driving portion (18).

15. The roller brush device (1) according to claim 14, characterized in that, At least two of the meshing teeth (1321) are evenly distributed in the circumferential direction of the accommodating cavity (133); the teeth on the output end of the driving portion (18) are also evenly distributed in the circumferential direction.

16. The roller brush device (1) according to claim 14, characterized in that, The number of the meshing teeth (1321) is six.

17. The rotary brush device (1) according to claim 14, characterized in that, The height of the meshing teeth (1321) is 3 mm to 6 mm.

18. The roller brush device (1) according to claim 13, characterized in that, The depth of the accommodating cavity (133) is 12 mm to 16 mm.

19. The roller brush device (1) according to claim 18, characterized in that, The second brush roller joint (13) is further provided with a receiving hole (134), and the receiving cavity (133) communicates with the receiving hole (134); The receiving hole (134) is used for receiving the positioning post at the free end of the driving part (18).

20. The roller brush device (1) according to claim 19, characterized in that, The depth of the receiving hole (134) is 5 mm to 7 mm.

21. The roller brush device (1) according to any one of claims 1 to 8, characterized in that, The brush roller body (11) includes a main body part (111) and a brush part (112); The brush roller device (1) further includes a mounting shell (15), and the brush roller body (11), the first brush roller joint (12) and the second brush roller joint (13) are all arranged in the mounting shell (15).

22. The roller brush device (1) according to claim 21, characterized in that, An installation groove (1111) is formed on the circumferential surface of the main body part (111), the installation groove (1111) is arranged in a spiral shape along the axial direction of the main body part (111), and the brush part (112) is arranged in the installation groove (1111).

23. The roller brush device (1) according to claim 22, characterized in that, The installation groove (1111) is a T-shaped groove.

24. The roller brush device (1) according to claim 23, characterized in that, The number of the brush parts (112) is multiple, and adjacent brush parts (112) are arranged at equal intervals.

25. The roller brush device (1) according to claim 24, characterized in that, The brush part (112) includes a leather strip and a brush.

26. The roller brush device (1) according to claim 25, characterized in that, The leather strip and the brush are alternately arranged along the circumferential direction of the main body part (111).

27. The roller brush device (1) according to claim 21, characterized in that, The brush part (112) covers the outer periphery of the main body part (111).

28. The roller brush device (1) according to claim 27, characterized in that, The brush part (112) includes bristles (1121), and a first distance L1 from the axis of the main body part (111) to the ground is 0.5 mm to 1 mm smaller than a second distance L2 from the axis of the main body part (111) to the free end of the bristles (1121).

29. The roller brush device (1) according to claim 27, characterized in that, The brush part (112) includes a first brush cloth (1122) and a second brush cloth (1123) spliced together, the material of the first brush cloth (1122) is an antistatic material, and the material of the second brush cloth (1123) is nylon; The hardness of the first brush cloth (1122) is greater than that of the second brush cloth (1123), and the area occupied by the first brush cloth (1122) is smaller than the area occupied by the second brush cloth (1123); The first brush cloth (1122) and the second brush cloth (1123) are spirally wound and fixed on the outer periphery of the main body part (111).

30. The roller brush device (1) according to claim 29, characterized in that, The ratio of the area occupied by the first brush cloth (1122) to the area occupied by the second brush cloth (1123) is 1 / 8 to 1 / 6.

31. The roller brush device (1) according to any one of claims 1 to 8, characterized in that, The brush roller device (1) further includes a counterweight rod (16), and the counterweight rod (16) is arranged inside the brush roller body (11).

32. The roller brush device (1) according to any one of claims 1 to 8, characterized in that, The length of the brush roller device (1) is 100 mm to 200 mm.

33. A vacuum cleaner, characterized in that, Including the brush roller device (1) according to any one of claims 1 to 32.

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