Cleaning equipment

Abstract

The utility model discloses cleaning equipment, which belongs to the technical field of household appliances, and comprises a machine body provided with a driving device, a mounting cavity and a dust suction port, a rolling brush driven by the driving device is arranged in the mounting cavity, the bottom side of the rolling brush protrudes out of the mounting cavity downwards and is in contact with a surface to be cleaned, the dust suction port is communicated with the mounting cavity, and the dust suction port is communicated with the mounting cavity. And the driving device drives the rolling brush to rotate back and forth between two limit positions by taking the central axis of the rolling brush as a rotating central line. The capability of hair winding on the reciprocating rotary rolling brush is greatly reduced, so that the hair brought up by the reciprocating rotary rolling brush can be smoothly sucked away through the dust suction port, and the use experience of a user is improved while the cleaning capability of the rolling brush is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a cleaning device. Background Art

[0002] As a kind of intelligent household cleaning appliance, cleaning robots play an increasingly important role in people's daily lives. Existing cleaning robots generally have a roller brush and a dust suction module. The roller brush is accommodated in a cavity and its bottom side contacts the surface to be cleaned. The dust suction module has a dust box and a fan. The dust suction port connected to the dust box is connected to the cavity for accommodating the roller brush. When the fan is working, it provides suction to form a dust suction airflow from the dust suction port to the dust box. When the cleaning robot is working, the unidirectional rotating roller brush sweeps the ground and lifts the dirt toward the dust suction port. The lifted dirt can be sucked into the dust box under the suction of the dust suction airflow, achieving a dust suction effect. Because there is a lot of hair in the home environment, when the cleaning robot is working, the longer hair is easily entangled on the unidirectional rotating roller brush and is not easy to be sucked away. After a long time, the hair on the roller brush will become more and more entangled, which will lead to the reduction of the cleaning ability of the roller brush and even cause the motor to crash due to excessive load. It is not conducive to ensuring the cleaning effect of the cleaning robot. Users need to frequently clean the hair entangled on the roller brush, which is not conducive to improving the user experience. Utility Model Content

[0003] In order to solve the shortcomings and deficiencies in the above-mentioned prior art, the utility model provides a cleaning device, which greatly reduces the ability of hair to be entangled on the roller brush, so that the hair brought up by the reciprocating roller brush can be smoothly sucked away through the dust suction port, thereby ensuring the cleaning ability of the roller brush while improving the user experience.

[0004] In order to achieve the above-mentioned technical objectives, the utility model provides a cleaning device, including a body provided with a driving device, a mounting cavity and a dust suction port, wherein a roller brush driven by the driving device is provided in the mounting cavity, and the bottom side of the roller brush protrudes downward from the mounting cavity and contacts with the surface to be cleaned, and the dust suction port is connected to the mounting cavity, and the driving device drives the roller brush to reciprocate between two extreme positions with its own central axis as the rotation center line.

[0005] Preferably, the driving device includes a motor and a transmission assembly, one end of the transmission assembly is connected to the output shaft of the motor, and the other end is connected to the roller brush, so that the motor drives the roller brush to reciprocate through the transmission assembly.

[0006] Preferably, the transmission assembly includes a rocker arm and a transmission plate with an eccentric block, the transmission plate is sleeved on the output shaft of the motor, the rocker arm is provided with a slide groove cooperating with the eccentric block and a rotating end connected to the end of the roller brush, the motor drives the transmission plate to rotate to drive the rotating end to rotate back and forth, so that the rotating end drives the roller brush to rotate back and forth.

[0007] Preferably, the transmission assembly includes a rocker arm and a transmission plate with an eccentric connecting rod, the transmission plate is sleeved on the output shaft of the motor, the rocker arm is provided with a driving end connected to the eccentric connecting rod and a rotating end connected to the end of the roller brush, the motor drives the rotating end to rotate reciprocatingly through the transmission plate and the eccentric connecting rod, so that the rotating end drives the roller brush to rotate reciprocatingly.

[0008] Preferably, the rotating end is provided with a radial limiting portion which is arranged concentrically with the roller brush.

[0009] Preferably, one of the end of the roller brush and the rotating end of the rocker arm is provided with a transmission block, and the other is provided with a transmission groove, the transmission block is inserted in the transmission groove and the two are non-circular matching structures, the transmission groove is provided with a convex column protruding from the bottom of the groove toward the transmission block, the transmission block is provided with a groove matching the convex column, and the convex column is inserted in the groove.

[0010] Preferably, the body is provided with a box shell located outside one end of the roller brush, the transmission assembly is arranged in the box shell, one end of the roller brush extends into the box shell and is connected to the transmission assembly; and / or, the other end of the roller brush can be rotatably mounted on the cavity wall of the installation cavity.

[0011] Preferably, the driving device comprises a motor having an output shaft capable of outputting bidirectional driving force, the end of the roller brush is connected to the output shaft, and the motor directly drives the roller brush to reciprocate.

[0012] Preferably, the roller brush has a vertical center plane passing through its central axis, and the two extreme positions are symmetrically distributed about the vertical center plane.

[0013] Preferably, the central angle corresponding to the two extreme positions of the reciprocating rotation of the roller brush is less than or equal to 180°.

[0014] After adopting the above technical solution, the utility model has the following advantages:

[0015] 1. In the cleaning device provided by the utility model, a driving device drives the roller brush to reciprocate between two extreme positions with its own central axis as the rotation center line, thereby improving the movement mode of the roller brush driven by the driving device, so that the roller brush changes from a traditional one-way rotation mode to a reciprocating rotation mode of non-360° reciprocating rotation around its own central axis, so that the roller brush simulates a back and forth sweeping action when the cleaning device is working, greatly reducing the ability of hair to be entangled on the reciprocating roller brush, so that the hair brought up by the reciprocating roller brush can be smoothly sucked away through the dust suction port, avoiding the hair entangled on the roller brush to reduce the cleaning ability of the roller brush or even causing the driving device to shut down due to excessive load, and avoiding the need for users to frequently clean the hair on the roller brush, thereby ensuring the cleaning ability of the roller brush while improving the user experience. Since the roller brush rotates back and forth with its own central axis as the rotation center line when working, the height of the central axis of the roller brush from the ground remains unchanged, and the contact force between the bottom side of the roller brush and the surface to be cleaned is basically consistent, ensuring the cleaning force of the roller brush on the surface to be cleaned when working, and avoiding the situation where the roller brush misses cleaning areas when the cleaning equipment is working.

[0016] 2. The driving device uses a motor and a transmission component. One end of the transmission component is connected to the output shaft of the motor, and the other end of the transmission component is connected to the roller brush. The motor can drive the roller brush to reciprocate through the transmission component. The structure of the driving device is reasonably set so that the motor can smoothly drive the roller brush to reciprocate. Especially when the transmission component adopts a reciprocating transmission structure, the motor can only output a unidirectional driving force, which is conducive to reasonably reducing the difficulty of electric control of the motor.

[0017] 3. In one solution, the transmission assembly includes a swing rod and a transmission disc with an eccentric block, the transmission disc is sleeved on the output shaft of the motor, the slide groove of the swing rod cooperates with the eccentric block, the rotating end of the swing rod is connected to the end of the roller brush, the output shaft of the motor drives the transmission disc to rotate unidirectionally, the unidirectionally rotating transmission disc drives the swing rod to swing back and forth with the central axis of the rotating end as the rotation center line through the cooperation of the eccentric block and the slide groove, and the swing rod that swings back and forth drives the roller brush to reciprocate through the rotating end. The specific structure of the transmission assembly is reasonably set, and a transmission assembly with a structure as simple as possible is used to meet the requirement that the motor drives the roller brush to reciprocate through the transmission assembly.

[0018] 4. In another scheme, the transmission assembly includes a swing rod and a transmission disc with an eccentric connecting rod, the transmission disc is sleeved on the output shaft of the motor, the driving end of the swing rod is connected to the eccentric connecting rod, the rotating end of the swing rod is connected to the end of the roller brush, the output shaft of the motor drives the transmission disc to rotate unidirectionally, the unidirectionally rotating transmission disc drives the swing rod to swing back and forth with the central axis of the rotating end as the rotation center line through the eccentric connecting rod, and the swinging swing rod drives the roller brush to reciprocate through the rotating end. The specific structure of the transmission assembly is reasonably set, and a transmission assembly with a structure as simple as possible is used to meet the requirement that the motor drives the roller brush to reciprocate through the transmission assembly.

[0019] 5. A radial limiting portion is provided at the rotating end, which is concentric with the roller brush. The rotating end of the swing arm is radially limited by the radial limiting portion, so that the roller brush connected to the rotating end is also radially limited, avoiding radial jump of the roller brush during reciprocating rotation, improving the movement stability of the roller brush during reciprocating rotation, and keeping the central axis of the roller brush at a constant height from the ground during reciprocating rotation, thereby ensuring the contact force between the bottom side of the roller brush and the surface to be cleaned, thereby ensuring the cleaning effect of the roller brush on the surface to be cleaned.

[0020] 6. A non-circular transmission block and a transmission groove are arranged between the end of the roller brush and the rotating end of the swing rod. The rotating end of the swing rod can smoothly drive the roller brush to rotate synchronously and reciprocatingly through the non-circular transmission block and the transmission groove, thereby ensuring the transmission effect between the rotating end of the swing rod and the end of the roller brush. A convex column is arranged in the transmission groove, and a groove is arranged on the transmission block. The connection strength between the rotating end and the roller brush end is improved through the cooperation of the convex column and the groove, thereby reducing the risk of shaft breakage at the rotating end or the roller brush end.

[0021] 7. The transmission assembly is arranged in the box shell, and the box shell is used to provide a relatively independent space for the transmission assembly to avoid the movement interference of other components of the cleaning equipment to the components of the transmission assembly, so that the motor can smoothly drive the roller brush to reciprocate through the transmission assembly.

[0022] The other end of the roller brush can be rotatably mounted on the cavity wall of the installation cavity, so that the other end of the roller brush is rotationally supported, thereby improving the reciprocating movement stability of the roller brush.

[0023] 8. The motor of the driving device can also output bidirectional driving force. In this case, the end of the roller brush is connected to the output shaft of the motor, and the motor can directly drive the roller brush to rotate back and forth through the output shaft. In this solution, there is no need to set a transmission component between the motor and the roller brush, which can reasonably simplify the structure of the driving device and avoid occupying the installation space required for other components of the cleaning equipment.

[0024] 9. The two extreme positions of the roller brush are preferably symmetrically distributed about the vertical center plane, that is, the reciprocating rotation amplitude of the roller brush is preferably symmetrically distributed about the vertical center plane, which is beneficial to reduce the difficulty of calibrating the initial position of the roller brush during assembly.

[0025] 10. The central angles corresponding to the two extreme positions of the roller brush are less than or equal to 180°. Reasonable setting of the reciprocating rotation amplitude of the roller brush can increase the frequency of the reciprocating rotation of the roller brush, and can also reasonably control the movement amplitude of the transmission component to ensure the cleaning effect of the roller brush on the surface to be cleaned while reasonably reducing the overall dimensions of the drive device to avoid excessive crowding of the installation space of other components in the machine body by the drive device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional view of the cleaning device of Example 1 along the front-to-back direction;

[0027] Figure 2 It is a top view schematic diagram of the body and the dust collection module in the cleaning device of Example 1;

[0028] Figure 3 It is a structural diagram of a roller brush, a motor and a housing in a cleaning device of Example 1;

[0029] Figure 4 An exploded view of a roller brush, a motor, a housing and a transmission assembly in a cleaning device in Example 1;

[0030] Figure 5 It is an axial cross-sectional view of the roller brush, motor, housing and transmission assembly in the cleaning device of Example 1;

[0031] Figure 6 It is a structural diagram of the swing rod in the cleaning device of Example 1;

[0032] Figure 7 It is a schematic diagram of the position of the motor in the cleaning device of Example 1 driving the roller brush to reciprocate through the transmission assembly;

[0033] Figure 8 This is a structural diagram of the motor, roller brush and transmission assembly in the cleaning device of Example 2;

[0034] Fig. 9 This is a schematic diagram of the connecting rod structure of the transmission assembly in the cleaning device of Example 2;

[0035] Fig.10 This is a schematic diagram of the position of the motor in the cleaning device of Example 2 driving the roller brush to reciprocate through the transmission assembly;

[0036] Fig.11 This is a schematic diagram of the coordination of the motor and the roller brush in the cleaning device of Example 3.

[0037] In the figure, 100-body, 110-installation cavity, 120-dust suction port,

[0038] 200-driving device, 210-motor, 211-output shaft, 220-transmission assembly, 221-rocker, 2211-slideway, 2212-rotation end, 2213-transmission groove, 2214-convex column, 2215-radial limiting part, 2216-driving end, 222-transmission plate, 223-eccentric block, 224-limiting member, 225-eccentric connecting rod, 230-coupling,

[0039] 300-roller brush, 310-roller brush body, 320-end cover, 331-transmission block, 332-groove,

[0040] 400-box shell, 410-box body, 411-limiting groove, 420-cover plate,

[0041] 500-dust collection module, 510-blower, 520-dust box. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following words indicating orientation or positional relationship such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0043] Embodiment 1

[0044] Combination Figures 1 to 7 A cleaning device provided in Embodiment 1 of the present invention includes a body 100 provided with a driving device 200, a mounting cavity 110 and a dust suction port 120. A roller brush 300 driven by the driving device 200 is provided in the mounting cavity 110. The bottom side of the roller brush 300 protrudes downward from the mounting cavity 110 and contacts the surface to be cleaned. The dust suction port 120 is connected to the mounting cavity 110. The driving device 200 drives the roller brush 300 to reciprocate between two extreme positions with its own central axis as the rotation center line.

[0045] The movement mode of the roller brush 300 driven by the driving device 200 is improved, so that the roller brush 300 changes from the traditional one-way rotation mode to a reciprocating rotation mode that rotates non-360° around its own central axis, so that the roller brush 300 simulates the back and forth cleaning action when the cleaning device is working, greatly reducing the ability of hair to be entangled on the roller brush 300, so that the hair brought up by the reciprocating roller brush 300 can be smoothly sucked away through the suction port 120, avoiding the hair entanglement on the roller brush 300, thereby reducing the cleaning ability of the roller brush 300 and even causing the driving device 200 to crash due to excessive load, and avoiding the need for users to frequently clean the hair on the roller brush 300, thereby ensuring the cleaning ability of the roller brush 300 while improving the user experience. Since the roller brush 300 rotates back and forth with its own central axis as the rotation center line when working, the height of the central axis of the roller brush 300 from the ground remains unchanged, and the contact force between the bottom side of the roller brush 300 and the surface to be cleaned is basically consistent, thereby ensuring the cleaning force of the roller brush 300 on the surface to be cleaned when working, and avoiding the situation where the roller brush 300 misses cleaning areas when the cleaning device is working.

[0046] Combination Figure 1 , Figure 2, this embodiment is described by taking a cleaning robot as an example, a universal wheel and a running wheel are provided at the bottom of the body 100, and the cleaning robot can control the running wheel to move forward or backward according to a pre-written program. In this embodiment, the mounting cavity 110 is roughly arranged in the middle area of ​​the body 100 in the front-back direction, the mounting cavity 110 extends in the left-right direction and is open at the bottom, and the roller brush 300 is rotatably arranged in the mounting cavity 110 and is axially arranged in the left-right direction. The roller brush 300 includes a roller brush body 310, brush strips arranged at intervals on the outer peripheral surface of the roller brush body 310, bristles arranged on the outer peripheral surface of the roller brush body 310 and located between adjacent brush strips, and an end cap 320 fixed to the end of the roller brush body 310. The bottom side of the roller brush 300 protrudes downward from the mounting cavity 110 so that the brush strips and bristles on the bottom side of the roller brush 300 can be in interference contact with the surface to be cleaned, so that the brush strips and bristles can effectively clean the surface to be cleaned.

[0047] Combination Figure 4 , Figure 5 , Figure 6 In this embodiment, the driving device 200 includes a motor 210 and a transmission assembly 220. One end of the transmission assembly 220 is connected to the output shaft 211 of the motor 210, and the other end is connected to the roller brush 300, so that the motor 210 drives the roller brush 300 to reciprocate through the transmission assembly 220. Specifically, the output shaft 211 of the motor 210 rotates in one direction, and the transmission assembly 220 includes a swing rod 221 and a transmission disc 222 with an eccentric block 223. The transmission disc 222 is sleeved on the output shaft 211 of the motor 210 through a non-circular shaft hole matching structure, and the eccentric block 223 is fixed on the transmission disc 222 and is arranged away from the output shaft 211. The swing rod 221 is provided with a chute 2211 matched with the eccentric block 223 and a rotating end 2212 connected to the end of the roller brush 300. The chute 2211 extends along the length direction of the swing rod 221. The eccentric block 223 is inserted into the chute 2211 and connected to the limiting member 224. The outer diameter of the head of the limiting member 224 is greater than the width of the chute 2211. The limiting member 224 limits the swing rod 221 to prevent the eccentric block 223 from escaping from the chute 2211. The rotating end 2212 is located at one end of the swing rod 221. The central axis of the rotating end 2212 coincides with the central axis of the roller brush 300. Figure 4The straight line L1 in the figure represents the central axis of the two. The end cover 320 of the roller brush 300 facing the driving device 200 is provided with a transmission block 331 protruding outward, and the rotating end 2212 of the swing rod 221 is provided with a transmission groove 2213 matched with the transmission block 331, and the transmission block 331 is inserted into the transmission groove 2213 and the two adopt a non-circular shaft hole matching structure. The working motor 210 drives the transmission disc 222 to rotate unidirectionally through the output shaft 211, and the unidirectionally rotating transmission disc 222 drives the eccentric block 223 to make a circular motion. The eccentric block 223 that makes a circular motion slides back and forth in the slide groove 2211 of the swing rod 221 at the same time. The eccentric block 223 that slides back and forth relative to the slide groove 2211 drives the swing rod 221 to swing back and forth with the straight line L1 as the rotation center line. The rotating end 2212 of the swing rod 221 drives the roller brush 300 to reciprocate with the straight line L1 as the rotation center line through the cooperation of the transmission block 331 and the transmission groove 2213, so that the roller brush 300 simulates the back and forth cleaning motion. As an optional solution of this embodiment, the transmission block 331 and the transmission groove 2213 can adopt a non-circular shaft hole matching structure such as a rectangular shaft hole matching structure, an elliptical shaft hole matching structure, and a spline shaft hole matching structure. As an alternative to this embodiment, the setting positions of the transmission block 331 and the transmission groove 2213 can be interchanged, that is, a transmission block protruding toward the roller brush 300 is set at the rotating end 2212 of the rocker arm 221, and a transmission groove for inserting the transmission block is set on the end cover 320 of the roller brush 300.

[0048] As a preferred solution of this embodiment, a convex column 2214 protruding from the bottom of the groove to the transmission block 331 is provided in the transmission groove 2213, and a groove 332 cooperating with the convex column 2214 is provided on the transmission block 331. The convex column 2214 is inserted into the groove 332. The cooperation between the convex column 2214 and the groove 332 improves the connection strength between the rotating end 2212 and the end of the roller brush 300, and reduces the risk of the shaft breaking at the rotating end 2212 or the end of the roller brush 300. As an alternative solution of this embodiment, the convex column 2214 and the groove 332 can also be eliminated on the premise that the cooperation between the transmission block 331 and the transmission groove 2213 satisfies the connection strength between the rotating end 2212 of the swing rod 221 and the end of the roller brush 300.

[0049] Combination Figure 3 , Figure 4In this embodiment, a housing 400 is provided inside the machine body 100 and is located outside one end of the roller brush 300. The transmission assembly 220 is disposed inside the housing 400. The housing 400 is used to provide a relatively independent space for the transmission assembly 220, so as to prevent other components of the cleaning device from interfering with the movement of the components of the transmission assembly 220. Specifically, the housing 400 includes a box body 410 and a cover plate 420 fixed together. One end of the roller brush 300 extends into the box body 400 through the cover plate 420 and is transmission-connected with the rotating end 2212 of the swing rod 221. The other end of the roller brush 300 is rotatably arranged by means of a bearing or the like. The bearing is arranged inside the machine body 100. The other end of the roller brush 300 passes through the cavity wall of the installation cavity 110 and cooperates with the bearing, so that the other end of the roller brush 300 can be rotatably mounted on the cavity wall of the installation cavity 110.

[0050] In order to improve the stability of the reciprocating rotation of the roller brush 300, the rotating end 2212 is provided with a radial limiting portion 2215 which is arranged concentrically with the roller brush 300. The rotating end 2212 of the swing rod 221 is radially limited by the radial limiting portion 2215, so that the roller brush 300 connected to the rotating end 2212 is also radially limited, thereby preventing the roller brush 300 from radially jumping when reciprocating. In this embodiment, the radial limiting portion 2215 is a radial limiting block, which is cylindrical and protrudes from the end surface of the rotating end 2212 toward the box body 410. The center line of the radial limiting block coincides with the straight line L1. The inner wall of the box body 410 is provided with a limiting groove 411 which is gap-matched with the radial limiting block. The radial limiting block is inserted into the limiting groove 411. The rotating end 2212 of the swing rod 221 is radially limited by the cooperation between the radial limiting block and the limiting groove 411. As an alternative to the present embodiment, the radial limiting portion 2215 may also be a circular limiting groove provided on the end surface of the rotating end 2212. In this case, a limiting protrusion inserted into the limiting groove is provided on the inner wall of the box shell 400.

[0051] Combination Figure 7 In this embodiment, the driving device 200 drives the roller brush 300 to rotate back and forth. The roller brush 300 has a vertical center plane P passing through the center axis shown by the straight line L1, and the two extreme positions are preferably symmetrically distributed about the vertical center plane P.

[0052] Combination Figure 1In this embodiment, the central angle θ corresponding to the two extreme positions of the back-and-forth rotation of the roller brush 300 is preferably less than or equal to 180°, so that the frequency of the reciprocating rotation of the roller brush 300 can be increased, and the movement amplitude of the transmission assembly 220 can be reasonably controlled to ensure the cleaning effect of the roller brush 300 on the surface to be cleaned while reasonably reducing the external dimensions of the driving device 200, so as to avoid the driving device 200 from excessively occupying the installation space of other components in the body 100. Specifically, the central angle θ corresponding to the two extreme positions of the roller brush 300 is about 160°, the angle between the radial direction where the front extreme position of the roller brush 300 is located and the vertical center plane P is about 80°, and the angle between the radial direction where the rear extreme position of the roller brush 300 is located and the vertical center plane P is also about 80°. As an alternative to the present embodiment, the center angle θ corresponding to the two extreme positions of the roller brush 300 can also be set to other reasonable sizes such as 150°, 154°, 158°, 162°, 166°, 170°, 172°, 176°, 180°, etc., and of course, it can also be set to other reasonable sizes such as 170°, 180°, 190°, 200°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, etc.

[0053] In this embodiment, the dust suction port 120 is connected to the rear side of the installation cavity 110, and a dust suction module 500 is also provided in the body 100. The dust suction module 500 includes a fan 510 and a dust box 520. The inlet of the dust box 520 is connected to the dust suction port 120. When the fan 510 is working, it provides suction to form a dust suction airflow that flows from the dust suction port 120 into the dust box 520.

[0054] When the cleaning device is working, the motor 210 drives the roller brush 300 to rotate back and forth through the transmission assembly 220, and the fan 510 provides suction to form a dust suction airflow. The reciprocating roller brush 300 cleans the surface to be cleaned, and the roller brush 300 rotating from front to back drives the dirt on the surface to be cleaned to rise toward the dust suction port 120. The raised dirt is sucked away through the dust suction port 120 under the action of the dust suction airflow and collected in the dust box 520. Since the roller brush 300 reciprocates back and forth, the ability of hair to be entangled on the roller brush 300 is greatly reduced, so that the hair carried by the reciprocating roller brush 300 can be smoothly sucked away through the dust suction port 120, avoiding the hair entangled on the roller brush 300, which reduces the cleaning ability of the roller brush 300 and even causes the driving device 200 to shut down due to excessive load, and also avoiding the need for users to frequently clean the hair on the roller brush 300, ensuring the cleaning ability of the roller brush 300 while improving the user's experience.

[0055] The other structures of the cleaning robot refer to the prior art, such as two side brush assemblies symmetrically distributed on the front of the body 100, a battery and a control panel are arranged inside the body 100, etc., which will not be repeated here.

[0056] Of course, the structure in which the roller brush 300 reciprocates under the drive of the driving device 200 in this embodiment can also be applied to a handheld cleaning machine, that is, the cleaning equipment recorded in this embodiment is not limited to the cleaning robot recorded above, but also includes a handheld floor scrubber, a handheld floor mopper, a handheld vacuum cleaner, etc. with a handle and manually operated by the user.

[0057] Embodiment 2

[0058] Combination Figure 8 In this embodiment, the transmission assembly includes a rocker arm 221 and a transmission disc 222 provided with an eccentric connecting rod 225. The transmission disc 222 is sleeved on the output shaft of the motor 210. One end of the eccentric connecting rod 225 is connected to the transmission disc 222 through a pin and deviates from the output shaft. The rocker arm 221 is provided with a driving end 2216 and a rotating end 2212. The driving end 2216 of the rocker arm 221 is connected to the other end of the eccentric connecting rod 225 through a pin. The rotating end 2212 of the rocker arm 221 is transmission-connected to the end of the roller brush 300. The eccentric connecting rod 225 and the rocker arm 221 constitute a crank rocker structure. The straight line L2 represents the central axis of the rotating end 2212 and the central axis of the roller brush 300. When the motor 210 is working, the output shaft 211 drives the transmission disc 222 to rotate back and forth in both directions. The transmission disc 222 that reciprocates in both directions drives the swing rod 221 to swing back and forth with the straight line L2 as the rotation center line through the eccentric connecting rod 225. The reciprocating swinging swing rod 221 drives the roller brush 300 to rotate back and forth through the rotating end 2212.

[0059] Combination Fig. 9 , point A represents the central axis of the output shaft 211, point B represents the connection point between the eccentric connecting rod 225 and the transmission plate 222, point C represents the connection point between the eccentric connecting rod 225 and the driving end 2216 of the swing rod 221, and point D represents the center point of the rotary end 2212. The distance between point A and point B is L1, the distance between point B and point C is L2, the distance between point C and point D is L3, and the distance between point A and point D is L4. Preferably, L1<L2<L3<L4 and L1+L4≤L2+L3.

[0060] Combination Fig.10, ⊙E represents a circle with point A as the center and L1 as the radius, ⊙F represents a circle with point A as the center and L1+L2 as the radius, ⊙G represents a circle with point D as the center and L3 as the radius, and ⊙K represents a circle with point C as the center and L2 as the radius. When the transmission assembly 220 moves to the point A, point B, and point C are on the same straight line, the roller brush 300 is in the front limit position or the rear limit position. When the transmission assembly 220 moves to the point C and point D are on the same vertical line, the roller brush 300 is in the middle position. When the roller brush 300 rotates to the front limit position or the rear limit position, the rotation direction of the output shaft is switched, so that the motor 210 can smoothly drive the roller brush 300 to rotate back and forth between the two limit positions through the transmission assembly 220.

[0061] The other structures of the second embodiment are the same as those of the first embodiment and will not be described in detail here.

[0062] Embodiment 3

[0063] Combination Fig.11 In this embodiment, the motor 210 adopts a bidirectional motor, and the end of the roller brush 300 is directly connected to the output shaft of the motor 210 through the coupling 230. The central axis of the roller brush 300 shown by the straight line L3 coincides with the central axis of the output shaft. The output shaft of the motor 210 rotates bidirectionally, and the bidirectional rotating output shaft drives the roller brush 300 to reciprocate with the straight line L3 as the rotation center line through the coupling 230.

[0064] In this embodiment, the motor 210 may be provided with a speed reduction module.

[0065] The other structures of the third embodiment are the same as those of the first embodiment and will not be described in detail here.

[0066] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not deviate from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. A cleaning device, comprising a body provided with a driving device, a mounting cavity and a dust suction port, wherein a roller brush driven by the driving device is provided in the mounting cavity, the bottom side of the roller brush protrudes downward from the mounting cavity and contacts with a surface to be cleaned, and the dust suction port is connected to the mounting cavity, characterized in that: The driving device drives the roller brush to reciprocate between two extreme positions with its own central axis as the rotation center line.

2. A cleaning device according to claim 1, characterized in that: The driving device comprises a motor and a transmission assembly, one end of the transmission assembly is connected to the output shaft of the motor, and the other end is connected to the roller brush, so that the motor drives the roller brush to reciprocate through the transmission assembly.

3. A cleaning device according to claim 2, characterized in that: The transmission assembly includes a rocker arm and a transmission disk with an eccentric block, the transmission disk is sleeved on the output shaft of the motor, the rocker arm is provided with a slide groove cooperating with the eccentric block and a rotating end connected to the end of the roller brush, the motor drives the transmission disk to rotate to drive the rotating end to rotate back and forth, so that the rotating end drives the roller brush to rotate back and forth.

4. A cleaning device according to claim 2, characterized in that: The transmission assembly includes a rocker arm and a transmission plate with an eccentric connecting rod, the transmission plate is sleeved on the output shaft of the motor, the rocker arm is provided with a driving end connected to the eccentric connecting rod and a rotating end connected to the end of the roller brush, the motor drives the rotating end to reciprocate through the transmission plate and the eccentric connecting rod, so that the rotating end drives the roller brush to reciprocate.

5. A cleaning device according to claim 3 or 4, characterized in that: The rotating end is provided with a radial limiting portion which is arranged concentrically with the roller brush.

6. A cleaning device according to claim 3 or 4, characterized in that: One of the end of the roller brush and the rotating end of the swing arm is provided with a transmission block, and the other is provided with a transmission groove. The transmission block is inserted in the transmission groove and the two are non-circular matching structures. The transmission groove is provided with a convex column protruding from the bottom of the groove to the transmission block, and the transmission block is provided with a groove matching the convex column, and the convex column is inserted in the groove.

7. A cleaning device according to claim 2, characterized in that: The body is provided with a box shell located outside one end of the roller brush, the transmission assembly is arranged in the box shell, one end of the roller brush extends into the box shell and is connected to the transmission assembly; and / or the other end of the roller brush can be rotatably mounted on the cavity wall of the installation cavity.

8. A cleaning device according to claim 1, characterized in that: The driving device comprises a motor having an output shaft capable of outputting bidirectional driving force, the end of the roller brush is connected to the output shaft, and the motor directly drives the roller brush to reciprocate.

9. A cleaning device according to claim 1, characterized in that: The roller brush has a vertical center plane passing through its center axis, and the two extreme positions are symmetrically distributed about the vertical center plane.

10. A cleaning device according to claim 1, characterized in that: The central angles corresponding to the two extreme positions of the reciprocating rotation of the roller brush are less than or equal to 180°.

Images