Suspended rolling brush structure of dust collector

Abstract

The invention discloses a dust collector suspension rolling brush structure which comprises a rolling brush body movably arranged in a rolling brush cavity of a dust collector floor brush, and the rear side of the rolling brush body corresponds to a dust collection opening; the first suspension swing arm is rotationally arranged in the first movable cavity on one side of the rolling brush cavity through a swing arm rotating shaft; the second suspension swing arm is rotationally arranged in a second movable cavity on the other side of the rolling brush cavity through another swing arm rotating shaft, and a connecting shaft at the end of the rolling brush body is rotationally connected with the first suspension swing arm and the second suspension swing arm in a butt joint mode; wherein a rolling brush driving mechanism is arranged at the position of the first suspension swing arm or / and the second suspension swing arm, the rolling brush driving mechanism is arranged inside or outside the rolling brush main body, and when the rolling brush main body is pushed by the outside terrain to swing in the rolling brush cavity and along the axis of the swing arm rotating shaft, the rolling brush driving mechanism synchronously drives the rolling brush main body to rotate along the axis of the rolling brush main body. The problem that an existing dust collector rolling brush is low in dust collection and cleaning efficiency can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and more particularly to a structure of a floating roller brush of a vacuum cleaner. Background Art

[0002] The roller brush on the floor brush of a conventional vacuum cleaner mostly adopts a fixed design and assembly, and is driven to rotate around a fixed axis during operation. When in use, due to the resistance formed by the rotation of the roller brush, it is difficult for the user to directly pull back the vacuum cleaner. This operation requires a relatively large pulling force. Generally, the floor brush needs to be lifted or the roller brush needs to be turned off first before the floor brush can be moved backward for reciprocating dust suction and cleaning on the surface of the object; the floor brush is lifted by the moving wheels and the auxiliary wheels to avoid structural wear and damage caused by touching the ground. The roller brush is exposed from the bottom surface of the floor brush to adsorb dust and hair on the surface of the object. However, this design is difficult to meet the cleaning requirements for the surface of objects with poor flatness, resulting in poor dust suction cleaning efficiency and quality, and insufficient usability.

[0003] For a floor brush with a partially rotatable roller brush assembly, it is difficult to achieve synchronous rotational drive when the roller brush is forced to move, resulting in low dust suction and cleaning efficiency of the floor brush. For example, the patent document with the authorized publication number CN110680242B discloses a floating roller brush assembly and a floor sweeper. The floating roller brush structure includes: a fixed member, including a fixed body; a floating member, including a floating body disposed below the fixed body; a synchronization mechanism disposed on the fixed body, with both ends thereof respectively connected to both ends of the floating body to drive both ends of the floating body to float synchronously; and a roller brush installed on the floating member to float with the floating member. In the present invention, the synchronization mechanism drives both sides of the floating member and both ends of the roller brush to float synchronously, with a simple structure and low installation and manufacturing costs. For the floor sweeper having this floating roller brush assembly, its roller brush can achieve synchronous floating at both ends under the drive of the floating member and the synchronization mechanism, with a simple structure and low installation and manufacturing costs. The patent document with the application publication number CN118121121A relates to a floating roller brush structure and a floor sweeper. The floating roller brush structure is used to be installed on the floor sweeper, and the floor sweeper includes a body with a first connection portion and a first positioning member provided thereon. The floating roller brush structure includes: a bracket provided with a second connection portion and an installation groove, and the second connection portion is used for detachably hinging with the first connection portion; a roller brush cover, and the roller brush cover and the bracket jointly define a receiving cavity with a first opening. The roller brush cover is provided with a second positioning member, and the second positioning member passes through the installation groove. The second positioning member includes an opposite fixed end and a free end, and the fixed end of the second positioning member is connected to the roller brush cover, and the free end of the second positioning member is used for cooperating with the first positioning member; a roller brush assembly disposed in the receiving cavity, and the roller brush assembly includes a roller brush, and a part of the roller brush protrudes from the first opening. According to the floating roller brush structure of the present application, the installation of the roller brush cover can be ensured to be in place through the cooperation of the first positioning member and the second positioning member.

[0004] Although the above-mentioned prior arts have all improved the defects in the use of the floor brush and roller brush of the vacuum cleaner, there are still the defects of the floor brush with the rotatable roller brush assembly pointed out above. Summary of the Invention

[0005] The purpose of the present invention is to provide a structure of a floating roller brush for a vacuum cleaner in order to solve the problem of low dust suction and cleaning efficiency of the existing roller brush of the vacuum cleaner.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A structure of a floating roller brush for a vacuum cleaner, including:

[0007] A roller brush main body, which is movably disposed in the roller brush cavity of the floor brush of the vacuum cleaner, and its rear side corresponds to the dust collection port;

[0008] A first floating swing arm, which is rotatably disposed in a first movable cavity on one side of the roller brush cavity through a swing arm rotating shaft;

[0009] The second suspension swing arm is rotatably arranged in a second movable cavity on the other side of the brush roller cavity through another swing arm rotating shaft;

[0010] The connecting shafts at the ends of the brush roller main body are respectively rotatably butted with the first suspension swing arm and the second suspension swing arm;

[0011] Wherein, a brush roller driving mechanism is arranged at the first suspension swing arm or / and the second suspension swing arm;

[0012] The brush roller driving mechanism is arranged inside or outside the brush roller main body;

[0013] When the brush roller main body is pushed by the external terrain and swings in the brush roller cavity along the axis of the swing arm rotating shaft, the brush roller driving mechanism synchronously drives the brush roller main body to rotate along its own axis.

[0014] As a further description of the above technical solution:

[0015] The brush roller main body includes a cylinder body, and a docking groove is arranged at one end of the cylinder body;

[0016] The brush roller driving mechanism includes a first motor, and the rotating driving end inside the first motor is butted with the docking groove;

[0017] The outer end of the first motor is fixed to the front end of the first suspension swing arm by a plurality of bolts arranged along its circumference;

[0018] The other end of the cylinder body is sleeved on the limiting ring at the front end of the second suspension swing arm, and its end face abuts against the flange outside the limiting ring.

[0019] As a further description of the above technical solution:

[0020] A wire passing hole is arranged at the front end of the first suspension swing arm, and the wiring of the first motor is led out from the wire passing hole and butted with the control module of the vacuum cleaner.

[0021] As a further description of the above technical solution:

[0022] The swing arm rotating shaft is rotatably inserted into the first docking holes of the first suspension swing arm and the second suspension swing arm;

[0023] The connecting shaft is rotatably inserted into the second docking hole.

[0024] As a further description of the above technical solution:

[0025] The connecting shaft is butted with a movable gear in a first installation cavity on the side of the brush roller cavity;

[0026] A plurality of first gear shafts are arranged on the side of the movable gear in the first installation cavity;

[0027] A mating gear is rotatably sleeved on the first gear shaft;

[0028] The brush driving mechanism is a gear set, and several of the mating gears are respectively meshed and connected to the movable gear and the brush driving mechanism.

[0029] As a further description of the above technical solution:

[0030] Several of the mating gears are arranged at intervals along an arc-shaped trajectory centered on the swing arm rotating shaft.

[0031] As a further description of the above technical solution:

[0032] The brush driving mechanism includes a first intermediate gear, a second intermediate gear, a driving gear, and a second motor;

[0033] The first intermediate gear is meshed and connected to the mating gear;

[0034] The second intermediate gear is meshed and connected to the first intermediate gear and the driving gear;

[0035] The output shaft of the second motor is butted against the driving gear, and is disposed in a second installation cavity at the rear end of the floor brush of the vacuum cleaner.

[0036] As a further description of the above technical solution:

[0037] The first intermediate gear and the second intermediate gear are respectively rotatably connected to a second gear shaft and a third gear shaft on the side surface of the first installation cavity.

[0038] As a further description of the above technical solution:

[0039] A partition is arranged in the brush main body, and the partition seals and separates the brush cavity and the outer cavity thereof;

[0040] A third docking hole is arranged on the partition;

[0041] The third docking hole is arranged in an arc shape centered on the swing arm rotating shaft;

[0042] The connecting shaft is slidably inserted into the third docking hole.

[0043] As a further description of the above technical solution:

[0044] A guide groove extends laterally in the middle of the third docking hole inside the partition;

[0045] The guide groove is arranged in an arc shape centered on the swing arm rotating shaft;

[0046] A sealing plate is slidably arranged in the guide groove, and the connecting shaft is rotatably arranged through a through hole of the sealing plate.

[0047] In summary, due to the adoption of the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0048] 1. The roller brush of the floor brush of the vacuum cleaner of the present invention is correspondingly improved based on the defects in the use of the conventional vacuum cleaner roller brush and floor brush. It adopts a suspended design. The main body of the roller brush is rotationally docked with the floor brush through the suspended swing arms at both ends. When used on the surface of uneven objects, under the action of its own gravity and external thrust, the main body of the roller brush will sink or rise synchronously with the surface of the object to ensure full fit, improve the contact area and contact sufficiency between the two, and thus improve the dust collection efficiency and cleaning degree; when the floor brush needs to be pulled back, the user pulls the floor brush backward. At this time, the roller brush has a tendency to rotate upward along the swing arm rotation axis under the action of the forward frictional resistance between it and the surface of the object. Therefore, the resistance of pulling back the floor brush is reduced, and the operation labor-saving degree and use convenience are improved. In addition, when the roller brush is forced to swing, it can still realize stable rolling drive through the roller brush drive mechanism to fully adsorb and clean the dust on the surface of the object, improving the dust collection efficiency and use flexibility.

[0049] 2. When the roller brush drive mechanism is arranged inside the main body of the roller brush for use, the main body of the roller brush is forced to swing, the first suspended swing arm and the second suspended swing arm rotate along the swing arm rotation axis and the corresponding movable cavity, and the first motor and the wiring move synchronously in the movable cavity. At the same time, the first motor drives the rotation drive end to rotate. Due to the circumferential positioning connection between the rotation drive end and the docking groove, the main body of the roller brush is synchronously driven to rotate to realize its rolling on the surface of the object and the efficient adsorption and cleaning of dust, etc., thereby improving the flexibility and efficiency of the roller brush.

[0050] 3. When the roller brush drive mechanism is arranged outside the main body of the roller brush, the connecting shaft is docked with the movable gear in the first installation cavity on the side of the roller brush cavity. A number of first gear shafts are arranged on the side of the first installation cavity of the movable gear, and docking gears are rotatably sleeved on the first gear shafts. The roller brush drive mechanism is a gear set, and a number of docking gears are respectively meshed with the movable gear and the roller brush drive mechanism. A number of docking gears are arranged at intervals along an arc-shaped track with the swing arm rotation axis as the center. When the main body of the roller brush is forced to swing, the connecting shaft synchronously drives the movable gear to move in the first installation cavity, disengages from one docking gear and meshes with another docking gear. Then, the second motor operates, causing the drive gear, the second intermediate gear, and the first intermediate gear to operate, and driving the movable gear to rotate through the corresponding docking gear, thereby realizing the rolling of the main body of the roller brush. Thus, stable and efficient rolling drive of the main body of the roller brush at different relative positions inside the floor brush is achieved.

[0051] 4. Considering that the roller brush driving mechanism is arranged outside the roller brush main body, and the roller brush main body is movably butted against the inner wall of the floor brush, a structure design for preventing impurities such as dust and hair from entering the floor brush housing is carried out. The working principle of this structure is as follows: when the roller brush main body swings, the connecting shaft will synchronously push the sealing plate, causing it to slide in the guide groove. At the same time, the sealing plate can also block the third docking hole, preventing dust, hair, etc. from entering the installation cavity inside the floor brush housing and contaminating the interior of the floor brush and the driving mechanism therein. Brief Description of the Drawings

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0053] Figure 1 It is a structure diagram of a floating roller brush of a vacuum cleaner and an exploded view of the whole vacuum cleaner floor brush.

[0054] Figure 2 It is an exploded view of a structure of a floating roller brush of a vacuum cleaner.

[0055] Figure 3 It is a cross-sectional view of the assembly structure of a floating roller brush of a vacuum cleaner and a vacuum cleaner floor brush.

[0056] Figure 4 It is the usage state of the assembly structure of a floating roller brush of a vacuum cleaner and a vacuum cleaner floor brush Figure 1 .

[0057] Figure 5 It is the usage state of the assembly structure of a floating roller brush of a vacuum cleaner and a vacuum cleaner floor brush Figure 2 .

[0058] Figure 6 It is a cross-sectional view of the floor brush corresponding to the structure of a floating roller brush of a vacuum cleaner Figure 1 .

[0059] Figure 7 It is a cross-sectional view of the floor brush corresponding to the structure of a floating roller brush of a vacuum cleaner Figure 2 .

[0060] Legend Explanation:

[0061] 1. Roller brush main body; 11. Cylinder body; 12. Docking groove; 13. Connecting shaft; 14. Movable gear; 15. Sealing plate; 16. Through hole;

[0062] 2. First floating swing arm; 21. Bolt; 22. Threading hole;

[0063] 3. Second suspension swing arm; 31. First docking hole; 32. Limit ring; 33. Flange; 34. Second docking hole;

[0064] 4. Swing arm rotating shaft;

[0065] 5. First motor; 51. Rotating drive end; 52. Wiring;

[0066] 6. Docking gear; 61. First gear shaft;

[0067] 7. First intermediate gear; 71. Second gear shaft;

[0068] 8. Second intermediate gear; 81. Third gear shaft;

[0069] 9. Driving gear;

[0070] 10. Second motor;

[0071] 100. Vacuum cleaner floor brush; 110. Rotating brush cavity; 120. Dust collection port; 130. First movable cavity; 140. Second movable cavity; 150. First installation cavity; 160. Second installation cavity; 170. Partition; 180. Third docking hole; 190. Guide groove. Detailed implementation manners

[0072] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0073] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0074] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0075] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "inner" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0076] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] Embodiment 1:

[0078] Please refer to Figure 1-7 , the present invention provides a technical solution: a structure of a floating roller brush of a vacuum cleaner, including:

[0079] A roller brush main body 1, which is movably disposed in a roller brush cavity 110 of a floor brush 100 of the vacuum cleaner, and its rear side corresponds to a dust collection port 120;

[0080] A first floating swing arm 2, which is rotatably disposed in a first movable cavity 130 on one side of the roller brush cavity 110 through a swing arm rotating shaft 4;

[0081] A second floating swing arm 3, which is rotatably disposed in a second movable cavity 140 on the other side of the roller brush cavity 110 through another swing arm rotating shaft 4;

[0082] The connecting shafts 13 at the ends of the roller brush main body 1 are respectively rotatably butted with the first floating swing arm 2 and the second floating swing arm 3;

[0083] Considering that the roller brushes on conventional vacuum cleaner floor brushes mostly adopt a fixed design and assembly, and are mostly driven to rotate with a fixed axis during operation. During use, due to the resistance formed by the rotation of the roller brush, it is difficult for the user to directly pull back the vacuum cleaner. This operation requires a large pulling force. Generally, the floor brush needs to be lifted first or the roller brush needs to be turned off before the floor brush can be moved backward to perform reciprocating dust suction and cleaning on the surface of the object; the floor brush is lifted by the moving wheels and auxiliary wheels to avoid structural wear and damage caused by touching the ground. The roller brush is exposed from the bottom surface of the floor brush to adsorb dust and hair on the surface of the object. However, this design is difficult to meet the cleaning work and cleaning use requirements of the surface of objects with poor flatness, resulting in poor dust suction cleaning efficiency and quality, and insufficient use convenience.

[0084] Based on the defects of the conventional vacuum cleaner's roller brush and floor brush during use, the roller brush of the floor brush of this vacuum cleaner adopts a floating design. The main body 1 of the roller brush is rotationally connected to the floor brush through the floating swing arms at both ends. When used on the surface of uneven objects, under the action of its own gravity and external thrust, the main body 1 of the roller brush will sink or rise synchronously with the surface of the object to ensure full adhesion to it, increase the contact area and adequacy between the two, and thus improve the dust collection efficiency and cleaning degree.

[0085] When the user needs to pull the floor brush back, the user pulls the floor brush backward. At this time, the roller brush has a tendency to rotate upward along the swing arm rotating shaft 4 under the action of the forward frictional resistance between it and the surface of the object. Thereby, the resistance of pulling the floor brush back is reduced, and the labor-saving degree of operation and the convenience of use are improved.

[0086] Among them, a roller brush driving mechanism is arranged at the first floating swing arm 2 or / and the second floating swing arm 3, and the roller brush driving mechanism is arranged inside or outside the main body 1 of the roller brush.

[0087] When the main body 1 of the roller brush swings along the axis of the swing arm rotating shaft 4 in the roller brush cavity 110 under the push of the external terrain, the roller brush driving mechanism synchronously drives the main body 1 of the roller brush to rotate along its own axis.

[0088] In addition, when the roller brush is forced to swing, it can still realize stable rolling drive through the roller brush driving mechanism to fully adsorb and clean the dust and the like on the surface of the object, and improve the dust collection efficiency and the flexibility of use.

[0089] The swing arm rotating shaft 4 is rotatably inserted into the first docking hole 31 of the first floating swing arm 2 and the second floating swing arm 3, and the connecting shaft 13 is rotatably inserted into the second docking hole 34.

[0090] The working principle of the structure of a floating roller brush of a vacuum cleaner in this embodiment includes: when used for dust collection on the surface of an object with low flatness, under the action of its own gravity and the external terrain thrust, the main body 1 of the roller brush will sink or rise synchronously with the surface of the object to ensure close adhesion to it.

[0091] When the user needs to pull the floor brush back, the user pulls the floor brush backward. At this time, the roller brush has a tendency to rotate upward along the swing arm rotating shaft 4 under the action of the forward frictional resistance between it and the surface of the object. Thereby, the resistance of pulling the floor brush back is reduced.

[0092] Embodiment 2:

[0093] Please refer to Figure 2 , on the basis of the above Embodiment 1, preferably, the roller brush driving mechanism is arranged inside the main body 1 of the roller brush, and the specific structural layout is:

[0094] The brush roller body 1 includes a cylinder 11, and a docking groove 12 is provided at one end of the cylinder 11. The brush roller driving mechanism includes a first motor 5, and the rotational driving end 51 inside the first motor 5 docks with the docking groove 12 to improve the efficiency and stability of the transmission between the motor and the brush roller body 1.

[0095] The outer end of the first motor 5 is fixed to the front end of the first floating swing arm 2 by a plurality of bolts 21 arranged along its circumference, so as to improve the convenience of assembling the first motor 5, the brush roller body 1 and the first floating swing arm 2.

[0096] As Figure 2 shown, a plum blossom-shaped countersunk head structure is arranged at the nut of the bolt 21, so as to facilitate the more stable docking of the corresponding installation tool, such as a screwdriver, ensure the efficient transmission of torque, and prevent the installation tool from shifting. Of course, the countersunk head structure can also adopt a conventional straight or cross-shaped structure, or a multi-sided prism-shaped structure such as an internal hexagon.

[0097] In addition, a washer should be arranged between the bolt 21 and the first floating swing arm 2 during installation to improve the screwing strength and reduce the wear of the structure during assembly. During assembly, it should be ensured that the first floating swing arm 2 is vertically docked with the overall axis of the first motor 5 to further improve the efficiency of torque transmission, and prevent the first motor 5 from being loose, worn or even stuck during installation.

[0098] The other end of the cylinder 11 is sleeved on the limiting ring 32 at the front end of the second floating swing arm 3, and its end face abuts against the flange 33 outside the limiting ring 32. Thereby, the stability and flexibility of the brush roller body 1 rotating along its own axis are improved.

[0099] In order to facilitate the wiring operation of the wiring 52 of the first motor 5, a wire passing hole 22 is provided at the front end of the first floating swing arm 2, and the wiring 52 of the first motor 5 is led out from the wire passing hole 22 and docked with the control module of the vacuum cleaner. Thereby, the centralized storage of the wiring 52 of the first motor 5 is realized, the interference and structural wear between the wiring 52 and the brush roller body 1 swinging and the floating swing arm moving are avoided, the stability of the movement of the brush roller structure and the operation of the electrical components in the floor brush is improved, and the layout position of the brush roller and its corresponding driving mechanism is made clearer, the complexity of the floor brush layout is simplified, and the convenience of disassembly, maintenance and repair of the floor brush is improved.

[0100] The working principle of the structure of a floating roller brush of a vacuum cleaner in this embodiment includes: when the roller brush main body 1 is forced to swing, the first floating swing arm 2 and the second floating swing arm 3 rotate along the swing arm rotating shaft 4 and the corresponding moving cavity, and the first motor 5 and the wiring 52 move synchronously in the moving cavity. At the same time, the first motor 5 drives the rotation drive end 51 to rotate. Due to the circumferential positioning connection between the rotation drive end 51 and the docking groove 12, the roller brush main body 1 is synchronously driven to rotate, so as to realize its rolling on the surface of the object and the efficient adsorption and cleaning of dust, etc., thereby improving the flexibility and efficiency of the use of the roller brush.

[0101] Embodiment 3:

[0102] Please refer to Figures 3-5 , on the basis of the above-mentioned Embodiment 1, preferably, the roller brush driving mechanism is arranged outside the roller brush main body 1, and the specific structural layout is:

[0103] The connecting shaft 13 is docked with the moving gear 14 in the first installation cavity 150 on the side of the roller brush cavity 110. A plurality of first gear shafts 61 are arranged on the side of the moving gear 14 in the first installation cavity 150. The docking gear 6 is rotatably sleeved on the first gear shaft 61. The roller brush driving mechanism is a gear set, and a plurality of the docking gears 6 are respectively meshed with the moving gear 14 and the roller brush driving mechanism.

[0104] A plurality of the docking gears 6 are arranged at intervals along an arc-shaped trajectory with the swing arm rotating shaft 4 as the center of the circle.

[0105] Through the above design, while the roller brush main body 2 swings, the connecting shaft 13 synchronously drives the moving gear 14 to move in the first installation cavity 150 and meshes with different docking gears 6, so as to realize the stable and efficient rolling drive of the roller brush main body 2 at different relative positions in the floor brush.

[0106] The roller brush driving mechanism includes a first intermediate gear 7, a second intermediate gear 8, a driving gear 9, and a second motor 10. The first intermediate gear 7 is meshed with the docking gear 6. The second intermediate gear 8 is meshed with the first intermediate gear 7 and the driving gear 9. The output shaft of the second motor 10 is docked with the driving gear 9, and it is arranged in the second installation cavity 160 at the rear end of the vacuum cleaner floor brush 100.

[0107] The first intermediate gear 7 and the second intermediate gear 8 are respectively rotatably connected to the second gear shaft 71 and the third gear shaft 81 on the side of the first installation cavity 150.

[0108] The working principle of the structure of a floating roller brush of a vacuum cleaner in this embodiment includes: when the roller brush body 1 is forced to swing, the connecting shaft 13 synchronously drives the movable gear 14 to move within the first installation cavity 150, disengaging from a pair of docking gears 6 and engaging with another docking gear 6. After that, the second motor 10 operates, causing the driving gear 9, the second intermediate gear 8, and the first intermediate gear 7 to rotate, and driving the movable gear 14 to rotate through the corresponding docking gears 6, thereby realizing the rolling of the roller brush body 1.

[0109] Embodiment 4:

[0110] Please refer to Figures 6-7 , on the basis of the above Embodiment 1, preferably, considering that the roller brush driving mechanism is disposed outside the roller brush body 1, when the roller brush body 1 is movably docked with the inner wall of the floor brush, at this time, it is necessary to consider the structural design to prevent impurities such as dust and hair from entering the floor brush housing. Specifically: a partition 170 is provided inside the roller brush body 1, the partition 170 seals and separates the roller brush cavity 110 and the cavity outside it, a third docking hole 180 is provided on the partition 170, and the third docking hole 180 is arranged in an arc shape with the swing arm rotating shaft 4 as the center of the circle, and the connecting shaft 13 slidably passes through the third docking hole 180.

[0111] Inside the partition 170, a guide groove 190 extends laterally in the middle of the third docking hole 180. The guide groove 190 is arranged in an arc shape with the swing arm rotating shaft 4 as the center of the circle, and a sealing plate 15 is slidably arranged therein. The connecting shaft 13 rotatably passes through the through hole 16 of the sealing plate 15.

[0112] The working principle of the structure of a floating roller brush of a vacuum cleaner in this embodiment includes: when the roller brush body 1 swings, the connecting shaft 13 will synchronously push the sealing plate 15 to make it slide in the guide groove 190. At the same time, the sealing plate 15 can also block the third docking hole 180 to prevent dust, hair, etc. from entering the installation cavity inside the floor brush housing and polluting the inside of the floor brush and the driving mechanism therein.

[0113] In summary, due to the adoption of the above technical solutions, the structure of a floating roller brush of a vacuum cleaner in this embodiment has the following beneficial effects compared with the prior art:

[0114] 1. The roller brush of the vacuum cleaner floor brush of the present invention is correspondingly improved based on the defects of the conventional vacuum cleaner roller brush and floor brush during use. It adopts a suspended design. The main body of the roller brush is rotationally connected to the floor brush through the suspended swing arms at both ends. When used on the surface of uneven objects, under the action of its own gravity and external thrust, the main body of the roller brush will sink or rise synchronously with the surface of the object to ensure full fit, increase the contact area and adequacy between the two, and thus improve the dust collection efficiency and cleaning degree. When the floor brush needs to be pulled back, the user pulls the floor brush backward. At this time, the roller brush has a tendency to rotate upward along the swing arm rotation axis under the action of the forward frictional resistance between it and the surface of the object. Thereby, the resistance of pulling back the floor brush is reduced, and the operation effort and use convenience are improved. In addition, when the roller brush is forced to swing, it can still be stably driven to roll through the roller brush drive mechanism to fully adsorb and clean the dust on the surface of the object, improving the dust collection efficiency and use flexibility.

[0115] 2. When using the structural design with the roller brush drive mechanism arranged inside the main body of the roller brush, the main body of the roller brush is forced to swing, and the first suspended swing arm and the second suspended swing arm rotate along the swing arm rotation axis and the corresponding movable cavity. The first motor and the wiring move synchronously in the movable cavity. At the same time, the first motor drives the rotation drive end to rotate. Due to the circumferential positioning connection between the rotation drive end and the docking groove, the main body of the roller brush is synchronously driven to rotate to achieve its rolling on the surface of the object and the efficient adsorption and cleaning of dust, etc., thereby improving the flexibility and efficiency of the roller brush.

[0116] 3. When the roller brush drive mechanism is arranged outside the main body of the roller brush, the connecting shaft is connected to the movable gear in the first installation cavity on the side of the roller brush cavity. The first installation cavity is provided with several first gear shafts on the side of the movable gear. The docking gears are rotationally sleeved on the first gear shafts. The roller brush drive mechanism is a gear set, and several docking gears are respectively meshed with the movable gear and the roller brush drive mechanism. Several docking gears are arranged at intervals along an arc-shaped track with the swing arm rotation axis as the center. When the main body of the roller brush is forced to swing, the connecting shaft synchronously drives the movable gear to move in the first installation cavity, disengaging from one docking gear and meshing with another docking gear. Then, the second motor operates, causing the drive gear, the second intermediate gear, and the first intermediate gear to operate, and driving the movable gear to rotate through the corresponding docking gear, thereby realizing the rolling of the main body of the roller brush. Thus, stable and efficient rolling drive of the main body of the roller brush at different relative positions inside the floor brush is achieved.

[0117] 4. Considering that the roller brush driving mechanism is arranged outside the roller brush main body, and the roller brush main body is movably butted against the inner wall of the floor brush, a structure design for preventing impurities such as dust and hair from entering the floor brush housing is thus carried out. The working principle of this structure is as follows: when the roller brush main body swings, the connecting shaft will synchronously push the sealing plate, causing it to slide in the guide groove. At the same time, the sealing plate can also block the third docking hole, preventing dust, hair, etc. from entering the installation cavity inside the floor brush housing and contaminating the inside of the floor brush and the driving mechanism therein.

[0118] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A structure of a suspended roller brush for a vacuum cleaner, characterized in that: include: The roller brush body is movably arranged in the roller brush cavity of the vacuum cleaner floor brush, and its rear side corresponds to the dust collection port; A first suspension swing arm, which is rotatably arranged in a first movable cavity on one side of the rolling brush cavity through a swing arm rotating shaft; The second suspension swing arm is rotatably arranged in the second movable cavity on the other side of the roller brush cavity through another swing arm rotating shaft, and the connecting shaft at the end of the roller brush body is rotatably connected to the first suspension swing arm and the second suspension swing arm respectively; Wherein, a roller brush driving mechanism is provided at the first suspended swing arm and / or the second suspended swing arm, and the roller brush driving mechanism is arranged inside or outside the roller brush body. When the roller brush body is pushed by the external terrain to swing in the roller brush cavity along the axis of the swing arm shaft, the roller brush driving mechanism synchronously drives the roller brush body to rotate along its own axis.

2. The structure of a suspended roller brush for a vacuum cleaner according to claim 1, characterized in that: The roller brush body includes a cylinder, one end of which is provided with a docking groove, and the roller brush driving mechanism includes a first motor, the rotating driving end inside the first motor is docked with the docking groove, and the outer end thereof is fixed to the front end of the first suspended swing arm by a plurality of bolts arranged along its circumference, and the other end of the cylinder is sleeved on the limiting ring at the front end of the second suspended swing arm, and the end face thereof abuts against the flange on the outer side of the limiting ring.

3. The structure of a suspended roller brush for a vacuum cleaner according to claim 2, characterized in that: A threading hole is provided at the front end of the first suspension swing arm, and the wiring of the first motor is led out through the threading hole and connected to the control module of the vacuum cleaner.

4. The structure of a suspended roller brush for a vacuum cleaner according to claim 1, characterized in that: The swing arm rotating shaft is rotatably inserted into the first docking holes of the first suspension swing arm and the second suspension swing arm, and the connecting shaft is rotatably inserted into the second docking hole.

5. The structure of a suspended roller brush for a vacuum cleaner according to claim 1, characterized in that: The connecting shaft is connected to the movable gear in the first mounting cavity on the side of the roller brush cavity. The first mounting cavity is provided with a plurality of first gear shafts on the side of the movable gear. The first gear shafts are rotatably sleeved with the docking gear. The roller brush driving mechanism is a gear set, and the plurality of docking gears are respectively meshed and connected with the movable gear and the roller brush driving mechanism.

6. The structure of a suspended roller brush for a vacuum cleaner according to claim 5, characterized in that: A plurality of the docking gears are arranged at intervals along an arc-shaped trajectory with the swing arm shaft as the center.

7. The structure of a suspended roller brush for a vacuum cleaner according to claim 5, characterized in that: The roller brush driving mechanism includes a first transition gear, a second transition gear, a driving gear, and a second motor. The first transition gear is meshed and connected to the docking gear. The second transition gear is meshed and connected to the first transition gear and the driving gear. The output shaft of the second motor is docked with the driving gear. The second motor is arranged in a second installation cavity at the rear end of the vacuum cleaner floor brush.

8. The structure of a suspended roller brush for a vacuum cleaner according to claim 7, characterized in that: The first transition gear and the second transition gear are rotatably connected to a second gear shaft and a third gear shaft on the side surface of the first installation cavity respectively.

9. The structure of a suspended roller brush for a vacuum cleaner according to claim 1, characterized in that: A partition is arranged inside the roller brush body, and the partition seals and separates the roller brush cavity and its outer cavity. A third docking hole is arranged on the partition, and the third docking hole is arranged in an arc shape with the swing arm shaft as the center. The connecting shaft slides through the third docking hole.

10. The structure of a suspended roller brush for a vacuum cleaner according to claim 9, characterized in that: A guide groove is provided in the partition and laterally extends in the middle of the third docking hole. The guide groove is arranged in an arc shape with the swing arm shaft as the center. A sealing plate is slidably arranged in the guide groove. The connecting shaft is rotatably inserted into the through hole of the sealing plate.

Images