Cleaning head, dust collector and cleaning system

Abstract

The invention discloses a cleaning head, a dust collector and a cleaning system. The cleaning head comprises a shell and a sweeping device arranged on the shell. The housing defines a cleaning chamber. The cleaning device is used for cleaning the to-be-cleaned surface and comprises a driving motor, a transmission structure and a cleaning part, the cleaning part is arranged in the cleaning cavity, the driving motor is used for driving the cleaning part to move along a movement track through the transmission structure, the movement track comprises a first section and a second section, and the first section and the second section are arranged in the first section. And in the second section, the cleaning piece leaves the surface to be cleaned and is in contact with the surface to be cleaned. The transmission structure comprises a speed reducing mechanism and an output mechanism. And the speed reducing mechanism and the output mechanism are separately arranged, so that noise and vibration generated by the whole transmission structure can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly to a cleaning head, a vacuum cleaner, and a cleaning system. Background Art

[0002] With the improvement of living standards, people have higher and higher requirements for floor cleaning. At present, most vacuum cleaners on the market adopt a roller brush structure. The roller brush structure is generally a roller that rotates around its own axis, and different forms of wiping members such as fluff and leather strips are arranged on the roller to improve the cleaning efficiency. However, due to the high-speed rotation of the roller brush structure, hair and the like will be wound on the roller brush, and the wound hair is very difficult to clean off.

[0003] In order to minimize hair entanglement as much as possible, some technicians make the roller brush into a crawler-type roller brush to increase the contact area. Other technicians also add a comb structure near the roller brush to minimize hair entanglement as much as possible. However, the situation of hair entanglement still often occurs. Summary of the Invention

[0004] In view of the deficiencies in the above technologies, the present invention provides a cleaning head with double roller brushes, which can effectively clean the two roller brushes simultaneously.

[0005] On the one hand, the present invention provides a cleaning head, comprising a housing that defines a cleaning chamber; a cleaning device for cleaning the surface to be cleaned, the cleaning device including a driving motor, a transmission structure, and a cleaning member, the cleaning member being disposed in the cleaning chamber, the driving motor being used to drive the cleaning member to move along a movement trajectory through the transmission structure, the movement trajectory including a first section and a second section, in the first section, the cleaning member leaves the surface to be cleaned, and in the second section, the cleaning member is in contact with the surface to be cleaned; wherein, the transmission structure includes a speed reduction mechanism and an output mechanism; the speed reduction mechanism includes a primary belt speed reducer and a secondary belt speed reducer, the input end of the primary belt speed reducer is in transmission connection with the output shaft of the driving motor, the output end of the primary belt speed reducer is in transmission connection with the input end of the secondary belt speed reducer, and the output end of the secondary belt speed reducer is in transmission connection with the output mechanism.

[0006] Optionally, the output mechanism includes a first output component and a second output component, the first output component includes a first output shaft and a first output member and a second output member respectively located at both ends of the first output shaft, the second output component includes a second output shaft and a third output member and a fourth output member respectively located at both ends of the second output shaft, and the output end of the secondary belt speed reducer is in transmission connection with the first output shaft and / or the second output shaft.

[0007] Optionally, the transmission structure also includes a first connecting rod and a second connecting rod, and the cleaning member is transmission-connected to the output mechanism via the first connecting rod and the second connecting rod; the first output member and the third output member jointly drive the first connecting rod; the second output member and the fourth output member jointly drive the second connecting rod to drive the cleaning member to move along the motion trajectory.

[0008] On the other hand, the present invention also provides a cleaning head. a housing defining a cleaning chamber; A cleaning device, used for cleaning the surface to be cleaned, the cleaning device comprising a driving motor, a transmission structure and a cleaning member, the cleaning member being arranged in the cleaning chamber, the driving motor being used for driving the cleaning member to move along a motion trajectory through the transmission structure, the motion trajectory comprising a first section and a second section, in the first section, the cleaning member leaves the surface to be cleaned, and in the second section, the cleaning member contacts the surface to be cleaned; Wherein, the transmission structure includes a reduction mechanism and an output mechanism; the output mechanism includes a first output assembly and a second output assembly, the first output assembly includes a first output shaft and a first output member and a second output member respectively located at two ends of the first output shaft, and the second output assembly includes a second output shaft and a third output member and a fourth output member respectively located at two ends of the second output shaft; The speed reduction mechanism is drivingly connected to the first output shaft and / or the second output shaft.

[0009] Optionally, the deceleration mechanism includes a primary belt reducer and a secondary belt reducer, the input end of the primary belt reducer is transmission connected to the output shaft of the drive motor, the output end of the primary belt reducer is transmission connected to the input end of the secondary belt reducer, and the output end of the secondary belt reducer is transmission connected to the first output shaft and / or the second output shaft.

[0010] Optionally, the transmission structure also includes a first connecting rod and a second connecting rod, and the cleaning member is transmission-connected to the output mechanism via the first connecting rod and the second connecting rod; the first output member and the third output member jointly drive the first connecting rod; the second output member and the fourth output member jointly drive the second connecting rod to drive the cleaning member to move along the motion trajectory.

[0011] Optionally, a counterweight is provided on the first output shaft and / or the second output shaft.

[0012] Optionally, when the cleaning member is located in the second section, at least a portion of the cleaning member is located directly below the output mechanism along the vertical direction.

[0013] Optionally, the movement trajectory is a circular movement trajectory.

[0014] Optionally, a mounting bracket is used to mount the speed reduction mechanism and the output mechanism; a shock absorption structure is provided between the mounting bracket and the housing.

[0015] Optionally, when the cleaning member is located in the second section, at least a part of the cleaning member is located directly below the output mechanism in the vertical direction.

[0016] Optionally, the movement trajectory is a circular movement trajectory.

[0017] On the other hand, the present invention also provides a cleaning head, a housing for moving on a surface to be cleaned, the housing further defining a first cavity; a cleaning device for cleaning the surface to be cleaned, the cleaning device including a driving motor, a transmission structure and a cleaning member, the driving motor being used to drive the cleaning member to move along a movement trajectory through the transmission structure; the cleaning member is disposed in the first cavity, the driving motor is used to drive the cleaning member to move along a movement trajectory through the transmission structure, the movement trajectory includes a first section and a second section, in the first section, the cleaning member leaves the surface to be cleaned, and in the second section, the cleaning member is in contact with the surface to be cleaned; wherein, the transmission structure includes a speed reduction mechanism and an output mechanism, and when the cleaning member moves in the second section, at least a part of the cleaning member is located directly below the output mechanism in the vertical direction.

[0018] On the other hand, the present invention also provides a vacuum cleaner, which includes a suction motor for generating a suction airflow and the above-mentioned cleaning head.

[0019] On the other hand, the present invention also provides a cleaning system, which includes the above-mentioned vacuum cleaner and a base station for docking the vacuum cleaner.

[0020] The present invention provides a cleaning head, a vacuum cleaner, and a cleaning system. The cleaning head includes a housing and a cleaning device disposed in the housing. The housing defines a cleaning chamber. The cleaning device is used for cleaning the surface to be cleaned. The cleaning device includes a driving motor, a transmission structure, and a cleaning member. The cleaning member is disposed in the cleaning chamber. The driving motor is used for driving the cleaning member to move along a movement track through the transmission structure. The movement track includes a first section and a second section. In the first section, the cleaning member leaves the surface to be cleaned. In the second section, the cleaning member contacts the surface to be cleaned. The transmission structure includes a speed reduction mechanism and an output mechanism. Separating the speed reduction mechanism and the output mechanism can effectively reduce the noise and vibration generated by the entire transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a cleaning system according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a floor sweeping robot according to an embodiment; Figure 3 is a schematic structural diagram of an upright vacuum cleaner according to an embodiment; Figure 4 is a schematic structural diagram of a cleaning head according to an embodiment; Figure 5 is Figure 4 a schematic structural diagram of the cleaning head shown in Figure 6 is Figure 5 a schematic structural diagram of the cleaning head shown in Figure 7 a schematic structural diagram of a cleaning head according to another embodiment (which can be installed on a floor sweeping robot); Figure 8 is a schematic structural diagram of another angle (showing the cleaning chamber) according to an embodiment; Figure 9 is along Figure 4 a sectional view taken along the A-A direction in Figure 10 is a movement track diagram of a cleaning member according to an embodiment; Figure 11 is a schematic structural diagram of a cleaning device according to an embodiment; Figure 12 is a schematic structural diagram from another angle; Figure 13 is a schematic diagram of a cleaning head according to another embodiment (using a different transmission structure); Figure 14 is Figure 13 a schematic structural diagram from another angle; Figure 15 is a schematic structural diagram of a cleaning device according to another embodiment; Figure 16 It is a schematic structural diagram of a cleaning head at different angles in another embodiment. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that if there are directional indications involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0025] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

[0026] Refer to Figure 1 , a cleaning system 300 is disclosed in the figure, which includes a vacuum cleaner or a base station 200 for docking with a vacuum cleaner, and a dust bag for storing dirt transferred from the vacuum cleaner is provided in the base station 200. Figure 2 and Figure 3 Other forms of vacuum cleaners are disclosed. Refer to Figures 1 - 3, the surface cleaning device 100 disclosed in the figure includes a suction motor for generating a suction airflow and a suction duct for guiding the suction airflow. The suction duct is in fluid communication with the fluid passage 13 of the cleaning head 102. The surface cleaning device 100 can be a floor cleaning robot (refer to Figure 2 ), etc., an autonomous cleaning device. The surface cleaning device 100 can also be an upright vacuum cleaner (refer to Figure 3 ) or a handheld vacuum cleaner (refer to Figure 1 ). The surface cleaning device 100 can be powered by a battery assembly carried by itself, or can be connected to a municipal power supply through a power cord for power supply. The working principle and related structures of the surface cleaning device 100 (except for the cleaning head 102 disclosed in this application) are relatively familiar technologies to those skilled in the art, and will not be elaborated here. The following focuses on the cleaning head 102 disclosed in this application.

[0027] Refer to Figures 4 - 10 , a cleaning head 102 is disclosed in the figure. The cleaning head 102 includes a housing 1 for moving on the surface 400 to be cleaned. A plurality of rollers can be installed on the housing 1. The housing 1 can be assembled from a plurality of injection-molded parts. Refer to Figure 9 , the housing 1 defines a fluid passage 13 for guiding the flow of the suction airflow, and the housing 1 also defines a first cavity that is in fluid communication with the fluid passage 13; the first cavity can be a separate cavity. The first cavity can also include a suction chamber 14 and a cleaning chamber 15 that are in fluid communication. The cleaning chamber 15 and the fluid passage 13 are located on both sides of the suction chamber 14. Along the forward direction of the cleaning device, the cleaning chamber 15 can be located in front of the suction chamber 14 or behind the suction chamber 14, as long as it is ensured that the suction chamber 14 is located between the cleaning chamber 15 and the fluid passage 13. The suction chamber 14 is responsible for fluid communication between the fluid passage 13 and the cleaning chamber 15.

[0028] Refer to Figures 4 - 10, the housing 1 defines a suction chamber 14 that is in fluid communication with the fluid passage 13 and a cleaning chamber 15 disposed in front of the suction chamber 14. The suction chamber 14 and the cleaning chamber 15 are in fluid communication through at least one communication port 16. The communication port 16 can be trapezoidal, and along the flow direction of the air flow, the cross-sectional area of the communication port 16 gradually decreases. This setting can effectively improve the cleaning ability. When the surface cleaning device 100 is a floor sweeping robot, the cleaning head 102 can be integrated into the body 101 of the floor sweeping robot or can be detachably mounted to the floor sweeping robot. When the cleaning head 102 is integrated with the body 101 of the floor sweeping robot, the housing 1 of the cleaning head 102 is a part of the body 101 of the floor sweeping robot. When the surface cleaning device 100 is an upright vacuum cleaner, the cleaning head 102 is generally pivotally connected to the body 101 of the cleaning device, and the user controls the surface cleaning device 100 by operating the body 101. When the surface cleaning device 100 is a handheld vacuum cleaner, the cleaning head 102 can be connected to the cleaning head 102 through a connecting rod. When the surface cleaning device 100 is operating, the cleaning device 2 operates in the cleaning chamber 15 to sweep at least part of the dirt to the communication port 16. The generated suction air flow sucks the dirt at the communication port 16 into the suction chamber 14, and then the dirt in the suction chamber 14 is recovered into the collection box through the fluid passage 13. As shown in the embodiment in the figure, along the vertical direction, the height of the suction chamber 14 is less than the height of the cleaning chamber 15. Defining the suction chamber 14 to be smaller can effectively reduce the suction loss and improve the cleaning ability.

[0029] Reference Figures 4 - 16 , in order to effectively avoid the traditional roller brush from being entangled with hair, the present application discloses a new cleaning device 2. The cleaning device 2 is used for cleaning the surface 400 to be cleaned. The cleaning device 2 includes a driving motor 21, a transmission structure 22, and a cleaning member 25 (non-roller structure). The cleaning member 25 is disposed in the cleaning chamber 15. The driving motor 21 is used to drive the cleaning member 25 to move along a movement track 103 through the transmission structure 22. The movement track 103 is a closed track, and the movement track 103 includes a first section and a second section. In the first section (reference Figure 10 in the first, second, and fourth figures), the cleaning member 25 leaves the surface 400 to be cleaned. In the second section (reference Figure 10 in the third figure), the cleaning member 25 contacts the surface 400 to be cleaned to sweep the dirt on the surface 400 to be cleaned towards the communication port 16. The movement track 103 can be a circular track, an elliptical track, a rectangular track, or an irregular graphic track. Different movement tracks 103 can be realized through different transmission structures 22. The wiping strip 252 (brush hair or brush strip) on the cleaning member 25 can extend out of the side wall 12 of the housing to realize the cleaning of the skirting board or the corner.

[0030] The cleaning head 102 will be introduced in detail below with reference to the accompanying drawings, with a focus on the transmission structure 22. The housing 1 includes an upper housing 17 and a lower housing 18, and an installation space 28 is defined between the upper housing 17 and the lower housing 18. The drive motor 21 can be a common motor, which can be controlled by a controller after being powered on. The controller can be a common circuit board. The controller can control the startup, shutdown, rotation speed, rotation direction, etc. of the drive motor 21. Details are not described here.

[0031] Reference Figures 4 - 6 , the transmission structure 22 includes a reduction mechanism 31 and an output mechanism 32. The mounting bracket 271 is used to mount the reduction mechanism 31 and the output mechanism 32. In order to further reduce the noise and vibration generated by the cleaning device 2, a damping structure is provided between the mounting bracket 271 and the housing 1. The mounting bracket 271 can be an integral bracket or can be composed of two separate brackets, one supporting the reduction mechanism 31 and the other supporting the output mechanism 32.

[0032] Reference Figures 6 - 16 , the reduction mechanism 31 includes a primary belt reducer 311 and a secondary belt reducer 312. The input end of the primary belt reducer 311 is in transmission connection with the output shaft of the drive motor 21. The output end of the primary belt reducer 311 is in transmission connection with the input end of the secondary belt reducer 312. The output end of the secondary belt reducer 312 is in transmission connection with the output mechanism 32. Reference Figure 7 , the output mechanism 32 includes a first output assembly 321 and a second output assembly 322. The first output assembly 321 includes a first output shaft 323 and a first output member 324 and a second output member 325 respectively located at both ends of the first output shaft 323. The second output assembly 322 includes a second output shaft 327 and a third output member 328 and a fourth output member 329 respectively located at both ends of the second output shaft 327. The output end of the secondary belt reducer 312 is in transmission connection with the first output shaft 323 and / or the second output shaft 327. The transmission structure 22 further includes a first connecting rod 232 and a second connecting rod 242, and the cleaning member 25 is in transmission connection with the output mechanism 32 through the first connecting rod 232 and the second connecting rod 242. The first output member 324 and the third output member 328 jointly drive the first connecting rod 232; the second output member 325 and the fourth output member 329 jointly drive the second connecting rod 242 to drive the cleaning member 25 to move along the movement track 103. By setting the reduction mechanism 31, especially the belt reduction mechanism 31, upstream of the output mechanism 32, the mutual transmission of vibration between the drive motor 21 and the output mechanism 32 can be effectively reduced, thereby reducing noise and at the same time reducing the vibration amplitude of the entire cleaning head 102. At the same time, no additional speed reduction is performed within the output mechanism 32, which can maximize the stability of the output mechanism 32.

[0033] Specifically, reference Figure 11Or 15, the first - stage belt reducer 311 includes a belt and gears located at both ends of the belt respectively. Through this reduction structure, the speed output by the driving motor 21 is initially reduced. The second - stage belt reducer 312 includes a belt and gears located at both ends of the belt respectively to achieve further speed reduction. The output gear of the second - stage belt reducer 312 is fixedly connected to the first output shaft 323 to drive the first output shaft 323 to rotate. The first output shaft 323 drives the first output member 324 and the second output member 325 at both ends. The first output member 324 and the second output member 325 are gear structures. At the same time, the third output member 328 and the fourth output member 329 are also gear structures. The first output member 324 meshes with the third output member 328, and the second output member 325 meshes with the fourth output member 329. Next, the structure of the output member is introduced. The output member can be a wheel - shaped structure, and a short shaft 244 protrudes from its outer side. The short shaft 244 deviates from the rotation center of the output member. The movement track 103 of the short shaft 244 is a circular motion around the rotation center of the output member. The first connecting rod 232 is rotatably installed on the short shafts 244 of the first output member 324 and the third output member 328. In order to improve the rotation accuracy, the first connecting rod 232 and the short shaft 244 can be installed through a bearing. Of course, other common connection methods can also be used for installation. The second connecting rod 242 is installed on the second output member 325 and the fourth output member 329 in the same way. Since the first output member 324, the second output member 325, the third output member 328, and the fourth output member 329 rotate synchronously, and the positions of the four short shafts 244 relatively remain the same. When the output member rotates, it drives the first connecting rod 232 and the second connecting rod 242 to move. At this time, the movement of the first connecting rod 232 and the second connecting rod 242 drives the cleaning member 25 to move along the predetermined movement track 103.

[0034] Reference Figures 13 - 15 , in this embodiment, the output end of the second - stage belt reducer 312 drives the first output shaft 323 and the second output shaft 327 through an output shaft at the same time. A gear is provided on the output shaft, and corresponding gear structures are respectively provided on the first output shaft 323 and the second output shaft 327 to achieve synchronous transmission through different gear combinations.

[0035] Reference Figure 11 And 12 , the shapes of the first connecting rod 232 and the second connecting rod 242 can be T - shaped, or structures similar to the T - shaped structure. For the first connecting rod 232 with this structure, when the cleaning member 25 is located in the second section (reference Figure 10), at least part of the cleaning member 25 is located directly below the output mechanism 32 in the vertical direction (only considering the positional relationship in the vertical direction and not considering the positional relationship in the horizontal direction). Such an arrangement can effectively reduce the vibration generated by the entire cleaning device 2. Regarding the vibration generated by the cleaning device 2, a counterweight 19 is provided on the first output shaft 323 and / or the second output shaft 327 (refer to Figure 12 and 13 ).

[0036] Refer to Figures 13 - 15 , the shapes of the first connecting rod 232 and the second connecting rod 242 can also be long strip-shaped structures with a bent front end. With such a structure, in the horizontal direction (only considering the positional relationship in the horizontal direction and not considering the positional relationship in the vertical direction), the movement trajectory 103 is located in front of the output mechanism 32, which can reduce the overall height of the cleaning head 102.

[0037] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. A cleaning head, characterized in that, Comprising: A housing that defines a cleaning chamber; A cleaning device for cleaning a surface to be cleaned, the cleaning device comprising a drive motor, a transmission structure, and a cleaning member, the cleaning member being disposed within the cleaning chamber, the drive motor being configured to drive the cleaning member to move along a movement trajectory through the transmission structure, the movement trajectory including a first section and a second section, within the first section, the cleaning member is separated from the surface to be cleaned, and within the second section, the cleaning member is in contact with the surface to be cleaned; Wherein, the transmission structure includes a speed reduction mechanism and an output mechanism; the speed reduction mechanism includes a primary belt speed reducer and a secondary belt speed reducer, an input end of the primary belt speed reducer is drivingly connected to an output shaft of the drive motor, an output end of the primary belt speed reducer is drivingly connected to an input end of the secondary belt speed reducer, and an output end of the secondary belt speed reducer is drivingly connected to the output mechanism.

2. The cleaning head according to claim 1, wherein The output mechanism includes a first output assembly and a second output assembly, the first output assembly includes a first output shaft and a first output member and a second output member respectively located at two ends of the first output shaft, the second output assembly includes a second output shaft and a third output member and a fourth output member respectively located at two ends of the second output shaft, and an output end of the secondary belt speed reducer is drivingly connected to the first output shaft and / or the second output shaft.

3. The cleaning head according to claim 2, wherein The transmission structure further includes a first link and a second link, the cleaning member is drivingly connected to the output mechanism through the first link and the second link; the first output member and the third output member jointly drive the first link; the second output member and the fourth output member jointly drive the second link to drive the cleaning member to move along the movement trajectory.

4. A cleaning head, characterized in that, Comprising: A housing that defines a cleaning chamber; A cleaning device for cleaning a surface to be cleaned, the cleaning device comprising a drive motor, a transmission structure, and a cleaning member, the cleaning member being disposed within the cleaning chamber, the drive motor being configured to drive the cleaning member to move along a movement trajectory through the transmission structure, the movement trajectory including a first section and a second section, within the first section, the cleaning member is separated from the surface to be cleaned, and within the second section, the cleaning member is in contact with the surface to be cleaned; Wherein, the transmission structure includes a speed reduction mechanism and an output mechanism; the output mechanism includes a first output assembly and a second output assembly, the first output assembly includes a first output shaft and a first output member and a second output member respectively located at two ends of the first output shaft, the second output assembly includes a second output shaft and a third output member and a fourth output member respectively located at two ends of the second output shaft; The speed reduction mechanism is drivingly connected to the first output shaft and / or the second output shaft.

5. The cleaning head according to claim 4, wherein The deceleration mechanism includes a primary belt reducer and a secondary belt reducer. The input end of the primary belt reducer is drivingly connected to the output shaft of the drive motor. The output end of the primary belt reducer is drivingly connected to the input end of the secondary belt reducer. The output end of the secondary belt reducer is drivingly connected to the first output shaft and / or the second output shaft.

6. The cleaning head according to claim 4, wherein the transmission structure further includes a first connecting rod and a second connecting rod. The cleaning member is drivingly connected to the output mechanism through the first connecting rod and the second connecting rod. The first output member and the third output member jointly drive the first connecting rod. The second output member and the fourth output member jointly drive the second connecting rod to drive the cleaning member to move along the movement trajectory.

7. The cleaning head according to any one of claims 2-6, wherein a counterweight is provided on the first output shaft and / or the second output shaft.

8. The cleaning head according to claim 7, wherein when the cleaning member is located in the second section, at least a part of the cleaning member is located directly below the output mechanism in the vertical direction.

9. The cleaning head according to claim 7, wherein the movement trajectory is a circular movement trajectory.

10. The cleaning head according to any one of claims 1-6, wherein a mounting bracket for mounting the deceleration mechanism and the output mechanism; a damping structure is provided between the mounting bracket and the housing.

11. The cleaning head according to any one of claims 1-6, wherein when the cleaning member is located in the second section, at least a part of the cleaning member is located directly below the output mechanism in the vertical direction.

12. The cleaning head according to any one of claims 1-6, wherein the movement trajectory is a circular movement trajectory.

13. A cleaning head, comprising a housing for moving on a surface to be cleaned, characterized in that the housing further defines a first cavity; a cleaning device for cleaning the surface to be cleaned, the cleaning device includes a drive motor, a transmission structure and a cleaning member, the drive motor is used to drive the cleaning member to move along a movement trajectory through the transmission structure; the cleaning member is arranged in the first cavity, the drive motor is used to drive the cleaning member to move along a movement trajectory through the transmission structure, the movement trajectory includes a first section and a second section, in the first section, the cleaning member leaves the surface to be cleaned, and in the second section, the cleaning member is in contact with the surface to be cleaned; Among them, the transmission structure includes a deceleration mechanism and an output mechanism. When the cleaning member moves in the second section, at least a part of the cleaning member is located directly below the output mechanism in the vertical direction.

14. A vacuum cleaner, characterized in that it includes a suction motor for generating a suction airflow and a cleaning head according to any one of claims 1-13.

15. A cleaning system, characterized in that the vacuum cleaner according to claim 14 and a base station for docking the vacuum cleaner.

Images