Cleaning head and surface cleaning equipment

Abstract

The utility model discloses a cleaning head and surface cleaning equipment. The cleaning head comprises a shell, the shell is used for moving on a surface to be cleaned, a fluid channel is limited by the shell, and the cleaning head is characterized in that a suction cavity communicated with fluid of the fluid channel and a cleaning cavity arranged in front of the suction cavity are further limited by the shell. The suction cavity and the cleaning cavity are in fluid communication through at least one communication opening. The cleaning head further comprises a sweeping device used for sweeping the surface to be cleaned, the sweeping device comprises a driving motor, a transmission structure and a sweeping piece, the sweeping piece is arranged in the sweeping cavity, the driving motor is used for driving the sweeping piece to move along a movement track through the transmission structure, the movement track comprises a first section and a second section, and the second section is located in the first section. And in the first section, the sweeping piece leaves the surface to be cleaned, and in the second section, the sweeping piece is in contact with the surface to be cleaned so as to sweep dirt on the surface to be cleaned to the communicating port.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a cleaning head and surface cleaning equipment. Background Technology

[0002] Surface cleaning equipment generally includes a roller brush, the outer surface of which is equipped with wiping elements such as bristles or leather strips. The roller brush can rotate at high speed around its own axis and clean the surface to be cleaned by wiping elements.

[0003] High-speed rotating roller brushes can effectively improve cleaning ability. However, when the surface to be cleaned contains relatively long hair, the hair will quickly get tangled on the high-speed rotating roller brush. Once the hair is tangled on the roller brush, it will not only affect the cleaning performance, but also require the user to actively clean it. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a cleaning head and surface cleaning device that can effectively remove hair from the surface to be cleaned and prevent hair from getting tangled on the cleaning components.

[0005] On the one hand, the present invention provides a cleaning head, which includes a housing for moving on a surface to be cleaned, the housing defining a fluid channel, and the housing further defining a suction chamber in fluid communication with the fluid channel and a cleaning chamber disposed in front of the suction chamber;

[0006] The suction chamber and the cleaning chamber are in fluid communication through at least one communication port;

[0007] A cleaning device is used to clean the surface to be cleaned. The cleaning device includes a drive motor, a transmission structure, and a cleaning component. The cleaning component is disposed in the cleaning cavity. The drive motor is used to drive the cleaning component to move along a motion trajectory through the transmission structure. The motion trajectory includes a first segment and a second segment. In the first segment, the cleaning component leaves the surface to be cleaned. In the second segment, the cleaning component contacts the surface to be cleaned to sweep the dirt on the surface to be cleaned toward the connecting port.

[0008] Optionally, a portion of the transmission structure spans over the suction chamber.

[0009] Optionally, the height of the suction chamber is less than the height of the cleaning chamber in the vertical direction.

[0010] Optionally, the cleaning component includes a bracket and a wiping strip mounted on the bracket, the length of which is greater than the length of the cleaning cavity, so that the wiping strip protrudes from the side wall of the housing.

[0011] Optionally, the transmission structure includes a first transmission group, which includes a first eccentric wheel, a first connecting rod connected to the first eccentric wheel, and a first guide structure. The first eccentric wheel rotates to drive the first connecting rod to move relative to the first guide structure.

[0012] Optionally, the eccentric wheel is provided with a counterweight structure.

[0013] Optionally, the first guide structure includes a support rod, and the first connecting rod is provided with a stroke groove corresponding to the support rod. The support rod and the stroke groove cooperate with each other to limit the movement trajectory of the first connecting rod.

[0014] Optionally, the transmission structure further includes a second transmission group, which includes a second eccentric wheel, a second connecting rod connected to the second eccentric wheel, and a second guide structure. The second eccentric wheel rotates to drive the second connecting rod to move relative to the second guide structure.

[0015] Optionally, the first transmission group and the second transmission group are respectively disposed on both sides of the fluid channel along the length direction of the cleaning member.

[0016] This application also discloses a cleaning head comprising a housing for movement on a surface to be cleaned, the housing defining a fluid channel.

[0017] The housing further defines a first cavity, which is in fluid communication with the fluid channel;

[0018] A cleaning device is used to clean the surface to be cleaned. The cleaning device includes a drive motor, a transmission structure, and a cleaning component. The drive motor is used to drive the cleaning component to move along a motion trajectory through the transmission structure.

[0019] The cleaning component and part of the transmission structure are disposed inside the first cavity, while the drive motor and the remaining part of the transmission structure are disposed outside the first cavity.

[0020] Optionally, the transmission structure includes a first transmission group, which includes a first eccentric wheel, a first connecting rod connected to the first eccentric wheel, and a first guide structure. The first eccentric wheel rotates to drive the first connecting rod to move relative to the first guide structure. The first end of the first connecting rod is connected to the first eccentric wheel, and the cleaning member is disposed at the second end of the first connecting rod. A portion of the first connecting rod is located inside the first cavity, and another portion of the first connecting rod is located outside the first cavity.

[0021] Optionally, the first guide structure includes a support rod, and the first connecting rod is provided with a stroke groove corresponding to the support rod. The support rod and the stroke groove cooperate with each other to limit the movement trajectory of the first connecting rod; the support rod is disposed on the outside of the first cavity.

[0022] Optionally, the first cavity includes a suction cavity communicating with the fluid channel and a cleaning cavity communicating with the suction cavity, wherein the cleaning cavity and the fluid channel are located on both sides of the suction cavity.

[0023] Optionally, the cleaning component includes a bracket and a wiping strip mounted on the bracket, the length of which is greater than the length of the cleaning cavity, so that the wiping strip protrudes from the side wall of the housing.

[0024] This application also discloses a surface cleaning device, which includes a suction motor for generating a suction airflow and a suction pipe for guiding the suction airflow, characterized in that the suction pipe is in fluid communication with the fluid channel of the cleaning head described above.

[0025] This utility model provides a cleaning head and a surface cleaning device. The cleaning head includes a housing for moving on a surface to be cleaned. The housing defines a fluid channel. The housing further defines a suction chamber fluidly communicating with the fluid channel and a cleaning chamber disposed in front of the suction chamber. The suction chamber and the cleaning chamber are fluidly connected through at least one connecting port. The cleaning head also includes a cleaning device for cleaning the surface. The cleaning device includes a drive motor, a transmission structure, and a cleaning component. The cleaning component is disposed within the cleaning chamber. The drive motor drives the cleaning component to move along a motion trajectory through the transmission structure. The motion trajectory includes a first segment and a second segment. In the first segment, the cleaning component leaves the surface to be cleaned. In the second segment, the cleaning component contacts the surface to be cleaned to sweep dirt from the surface towards the connecting port. The cleaning component only contacts the surface to be cleaned in the second segment of the motion trajectory, sweeping dirt towards the connecting port. Not contacting the surface in the first segment effectively prevents hair and other debris from becoming entangled on the cleaning component.

[0026] This application also discloses a cleaning head, which includes a housing for moving on a surface to be cleaned, and the housing defines a fluid channel. The housing also defines a first cavity, which is in fluid communication with the fluid channel. The cleaning head further includes a cleaning device for cleaning the surface, the cleaning device including a drive motor, a transmission structure, and a cleaning component, the drive motor driving the cleaning component to move along a motion trajectory via the transmission structure. The cleaning component and part of the transmission structure are disposed inside the first cavity, while the drive motor and the remaining part of the transmission structure are disposed outside the first cavity. Disposing part of the transmission structure outside the first cavity effectively reduces the space of the first cavity and improves suction power. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a sweeping robot in one embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of an upright vacuum cleaner in one embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the structure of a handheld vacuum cleaner in one embodiment of this application;

[0030] Figure 4 This is a schematic diagram of a cleaning head that can be installed onto a handheld vacuum cleaner in one embodiment of this application;

[0031] Figure 5 for Figure 4 The diagram shows the structure of the cleaning head after the outer shell is concealed (including the connecting cover).

[0032] Figure 6 for Figure 4 The diagram shows the structure of the cleaning head from another angle.

[0033] Figure 7 for Figure 4 The diagram shown is a structural schematic of the cleaning head after the upper outer shell is concealed (excluding the connecting cover).

[0034] Figure 8 for Figure 4 The diagram shown is a structural schematic of the cleaning head after the upper outer shell is concealed (excluding the connecting cover).

[0035] Figure 9 for Figure 4 The diagram shows the structure of the cleaning head after the upper and lower outer shells are hidden.

[0036] Figure 10 For along Figure 4 Cross-sectional view along the AA direction;

[0037] Figure 11 This is a schematic diagram illustrating the movement trajectory of the cleaning components as the cleaning head moves forward. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] refer to Figure 1-3 The figure discloses a surface cleaning device 100, which includes a suction motor for generating a suction airflow and a suction pipe for guiding the suction airflow. The suction pipe is in fluid communication with a fluid channel 13 of a cleaning head 102. The surface cleaning device 100 can be a robotic vacuum cleaner (see reference). Figure 1 Self-cleaning equipment such as surface cleaning devices 100 can also be upright vacuum cleaners (see reference). Figure 2 ) or a handheld vacuum cleaner (see reference) Figure 3 The surface cleaning device can be powered by its own battery pack or by connecting to a municipal power source via a power cord. The working principle and related structure of the surface cleaning device 100 (excluding the cleaning head 102 disclosed in this application) are technologies familiar to those skilled in the art and will not be described in detail here. The following focuses on describing the cleaning head 102 disclosed in this application.

[0043] refer to Figure 4-11The figure shows a cleaning head 102. The cleaning head 102 includes a housing 1 for moving across a surface to be cleaned. Multiple rollers can be mounted on the housing 1. The housing 1 can be assembled from multiple injection-molded parts. (Reference) Figure 6 and 10 The housing 1 defines a fluid channel 13 for guiding the flow of suction airflow. The housing 1 also defines a first cavity, which is in fluid communication with the fluid channel 13. The first cavity can be a separate cavity. The first cavity may also include a suction cavity 14 and a cleaning cavity 15 in fluid communication. The cleaning cavity 15 and the fluid channel 13 are located on opposite sides of the suction cavity 14. Along the forward direction of the cleaning device, the cleaning cavity 15 can be located either in front of or behind the suction cavity 14, as long as the suction cavity 14 is located between the cleaning cavity 15 and the fluid channel 13. The suction cavity 14 is responsible for the fluid communication between the fluid channel 13 and the cleaning cavity 15.

[0044] refer to Figure 6 and 10 The housing 1 defines a suction chamber 14 in fluid communication with a fluid channel 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 connecting port 16. The connecting port 16 can be T-shaped, with its cross-section gradually decreasing along the airflow direction, which can effectively improve cleaning ability. When the surface cleaning device 100 is a robotic vacuum cleaner, the cleaning head 102 can be integrated into the body 101 of the robotic vacuum cleaner, or it can be detachably installed on the robotic vacuum cleaner. When the cleaning head 102 is integrated with the body 101 of the robotic vacuum cleaner, the housing 1 of the cleaning head 102 is part of the body 101 of the robotic vacuum cleaner. 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 via a connecting rod. When the surface cleaning device 100 is operating, the sweeping device 2 works within the sweeping chamber 15, sweeping at least some of the dirt to the connecting port 16. The generated suction airflow draws the dirt from the connecting 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 channel 13. Figure 10 In the embodiment shown, the height of the suction chamber 14 is less than the height of the cleaning chamber 15 in the vertical direction. Limiting the suction chamber 14 to a smaller size can effectively reduce suction loss and improve cleaning ability.

[0045] refer to Figure 4-11To effectively avoid hair entanglement in traditional roller brushes, this application discloses a new cleaning device 2. The cleaning device 2 is used to clean surfaces to be cleaned. The cleaning device 2 includes a drive motor 21, a transmission structure 22, and a cleaning component 25 (non-roller structure). The cleaning component 25 is disposed within a cleaning chamber 15. The drive motor 21 drives the cleaning component 25 to move along a closed trajectory via the transmission structure 22. The trajectory includes a first segment and a second segment. Within the first segment (see reference...) Figure 11 (See the first, third, and fourth images in the text). Cleaning component 25 leaves the surface to be cleaned and moves within the second section (see reference). Figure 11 (See the second figure). The cleaning component 25 contacts the surface to be cleaned to sweep dirt from the surface towards the connecting port 16. The motion trajectory can be a circular trajectory, an elliptical trajectory, a rectangular trajectory, or an irregular graphic trajectory. Different motion trajectories can be achieved through different transmission structures 22. Transmission structures 22 for achieving elliptical and rectangular trajectories are relatively common and will not be described in detail here. This application describes in detail a transmission structure 22 that can achieve an irregular graphic motion trajectory.

[0046] refer to Figure 4-10 The housing 1 includes an upper outer shell 17 and a lower outer shell 18, with an installation space 28 defined between them. 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 start-up, shutdown, speed, and direction of rotation of the drive motor 21, etc. Further details are omitted here. Figure 7-9 As shown, the transmission structure 22 includes a first transmission group 23, which includes a first eccentric wheel 231, a first connecting rod 232 connected to the first eccentric wheel 231, and a first guide structure 233. The first eccentric wheel 231 rotates to drive the first connecting rod 232 to move relative to the first guide structure 233. The drive motor 21 can directly drive the first eccentric wheel 231 to rotate. Of course, to increase or decrease the speed, the drive motor 21 can also be connected to the first eccentric wheel 231 via gears or belts. The embodiment shown in the figure uses a gear structure to reduce the speed to drive the first eccentric wheel 231 to rotate. Of course, in other embodiments, if the speed of the drive motor 21 is insufficient, the speed can be increased via a gear structure. A connecting shaft 26 is provided on the side of the first eccentric wheel 231. (Refer to...) Figure 11The first link 232 is rotatably connected to the connecting shaft 26, offset from the axis of the first eccentric wheel 231. When the first eccentric wheel 231 rotates, it drives the first end of the first link 232 to perform a circular motion around the axis of the first eccentric wheel 231. The cleaning component 25 is disposed at the second end of the first link 232. When the first link 232 performs a circular motion around the axis of the first eccentric wheel 231, it drives the cleaning component 25 to perform an irregular shape (non-circular, elliptical, rectangular, or other conventional shapes) under the guidance of the first guide structure 233. This irregular motion trajectory is mainly divided into a first segment and a second segment. When the cleaning component 25 is in the first segment, it leaves the surface to be cleaned. When the cleaning component 25 is in the second segment, it contacts the surface to be cleaned, sweeping the dirt on the surface to be cleaned towards the connecting port 16. Normally, the distance of the second segment is shorter than that of the first segment. Furthermore, in the second section, the cleaning component 25 moves toward the connecting port 16 (see reference). Figure 11 (See the second figure). In this motion trajectory, the cleaning component itself does not rotate relative to the transmission structure 22 throughout the entire trajectory; it simply moves along the trajectory under the movement of the transmission structure 22. This sweeps the dirt on the surface to be cleaned from front to back (or from back to front) to the connecting port 16, and then it is sucked into the suction chamber 14. Because the cleaning component 25 only performs a sweeping action in the second section and does not rotate, very little hair gets tangled on the cleaning component 25, effectively avoiding the problem of hair getting tangled on the cleaning component 25.

[0047] A counterweight can be added to the eccentric wheel in the area opposite to the connecting shaft 26 to reduce noise generated when the eccentric wheel rotates at high speeds. During manufacturing, the eccentric wheel can be directly formed so that the end with the connecting shaft 26 is lighter, and the other end along the diameter is heavier. The eccentric wheel can be a conventional disc-shaped structure. Alternatively, the eccentric wheel can be made into other shapes according to actual needs, such as teardrop or fan-shaped, with the connecting shaft designed at the lighter end to reduce noise.

[0048] refer to Figure 8-11 The guiding structure includes a support rod 26, and a connecting rod is provided with a stroke groove 253 corresponding to the support rod 26. The support rod 26 and the stroke groove 253 cooperate with each other to limit the movement trajectory of the connecting rod. Specifically, the support rod 26 does not move relative to the housing 1. When the first end of the connecting rod moves under the action of the eccentric wheel, the entire connecting rod moves relative to the support rod 26 under the guidance of the stroke groove 253, thereby driving the cleaning component 25 to perform non-circular motion (e.g., Figure 11 (as shown) Figure 11The arrows near the eccentric wheel indicate the rotation direction of the eccentric wheel; the arrows near the cleaning component 25 indicate the movement direction of the cleaning component 25. The support rod 26 can be fixedly installed to the housing 1. Alternatively, the support rod 26 can be installed to the housing 1 so that it can rotate around its own axis via bearings or other devices. When the connecting rod moves relative to the support rod 26, if the support rod 26 remains stationary, friction and / or collision will occur between the connecting rod and the support rod 26. If the support rod 26 can rotate around itself, then when the connecting rod moves relative to the support rod 26, the support rod 26 itself will also rotate, effectively reducing friction and noise.

[0049] In other embodiments, the support rod 26 can be omitted, and an elastic structure can be used to support the connecting rod to the housing 1. For example, multiple springs can be used to install the connecting rod to the housing 1, or a hollow annular rubber component (with a certain degree of elasticity) can be used to support the connecting rod to the housing 1. In this way, the movement trajectory of the connecting rod can be guaranteed while reducing noise.

[0050] refer to Figure 4-10 A portion of the transmission structure 22 spans above the suction chamber 14. The lower outer casing 18 has a through-hole for the connecting rod to pass through. Part of the connecting rod is located within the mounting space 28, while another part passes through the through-hole and extends into the cleaning chamber 15. When the first chamber is a separate chamber, part of the connecting rod is located within the first chamber, and the other part is located within the mounting space 28. To improve suction performance, the through-hole of the lower outer casing 18 can be sealed. The aforementioned elastic structure can also be provided at the through-hole, supporting the connecting rod while simultaneously sealing the through-hole to reduce or prevent airflow from the mounting space 28 into the first chamber. Sealing the through-hole also prevents dust from entering the mounting space.

[0051] refer to Figure 7-10 The cleaning component 25 can be a single, integral wiping strip 252. The cleaning component 25 may also include a bracket 251 and a wiping strip 252 mounted on the bracket 251. To improve edge cleaning, the length of the wiping strip 252 is greater than the length of the cleaning cavity 15, so that the wiping strip 252 protrudes from the side wall 12 of the housing 1. To achieve unilateral edge cleaning, one end of the wiping strip 252 protrudes from the corresponding side wall 12 of the housing 1. The length of the bracket 251 is less than the length of the cleaning cavity 15, thus avoiding contact between the bracket 251 and the surface to be cleaned on the side during edge cleaning; only the wiping strip 252 needs to contact the surface. The wiping strip 252 can be detachably mounted to the bracket 251 for easy replacement. Alternatively, both ends of the wiping strip 252 can protrude from the side wall 12, allowing edge cleaning to be performed at both ends.

[0052] Continue to refer to Figure 7 and8 To ensure smooth movement of the cleaning component 25, the transmission structure 22 further includes a second transmission group 24. The second transmission group 24 includes a second eccentric wheel 241, a second connecting rod 242 connected to the second eccentric wheel 241, and a second guide structure 243. The second eccentric wheel 241 rotates to drive the second connecting rod 242 to move relative to the second guide structure 243. The second transmission group 24 is basically the same as the first transmission group 23, except that its placement is spaced apart. The first transmission group 23 and the second transmission group 24 are respectively located on both sides of the fluid channel 13 along the length of the cleaning component 25. Symmetrical arrangement along the fluid channel 13 improves the stability of the transmission structure 22 and reduces noise. To ensure consistent movement of the first connecting rod 232 and the second connecting rod 242, a connecting cover plate 27 (e.g., ...) is provided between the two connecting rods. Figure 5 As shown in the diagram, the connecting cover 27 can fix the two connecting rods into a whole, allowing them to move together. Of course, in other embodiments, the two connecting rods can also be integrally formed into a single unit.

[0053] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A cleaning head comprising a housing for movement over a surface to be cleaned, the housing defining a fluid passageway, characterised in that, The housing further defines a suction chamber in fluid communication with the fluid channel and a cleaning chamber disposed in front of the suction chamber; The suction chamber and the cleaning chamber are in fluid communication through at least one communication port; A cleaning device is used to clean the surface to be cleaned. The cleaning device includes a drive motor, a transmission structure, and a cleaning component. The cleaning component is disposed in the cleaning cavity. The drive motor is used to drive the cleaning component to move along a motion trajectory through the transmission structure. The motion trajectory includes a first segment and a second segment. In the first segment, the cleaning component leaves the surface to be cleaned. In the second segment, the cleaning component contacts the surface to be cleaned to sweep the dirt on the surface to be cleaned toward the connecting port.

2. The cleaning head as described in claim 1, characterized in that, Part of the transmission structure spans above the suction chamber.

3. The cleaning head as described in claim 1, characterized in that, In the vertical direction, the height of the suction chamber is less than the height of the cleaning chamber.

4. The cleaning head as described in claim 1, characterized in that, The cleaning component includes a bracket and a wiping strip mounted on the bracket. The length of the wiping strip is greater than the length of the cleaning cavity, so that the wiping strip protrudes from the side wall of the housing.

5. The cleaning head as described in claim 1, characterized in that, The transmission structure includes a first transmission group, which includes a first eccentric wheel, a first connecting rod connected to the first eccentric wheel, and a first guide structure. The first eccentric wheel rotates to drive the first connecting rod to move relative to the first guide structure.

6. The cleaning head as described in claim 5, characterized in that, The eccentric wheel is equipped with a counterweight structure.

7. The cleaning head as described in claim 5, characterized in that, The first guide structure includes a support rod, and the first connecting rod is provided with a stroke groove corresponding to the support rod. The support rod and the stroke groove cooperate with each other to limit the movement trajectory of the first connecting rod.

8. The cleaning head as described in claim 5, characterized in that, The transmission structure further includes a second transmission group, which includes a second eccentric wheel, a second connecting rod connected to the second eccentric wheel, and a second guide structure. The second eccentric wheel rotates to drive the second connecting rod to move relative to the second guide structure.

9. The cleaning head as described in claim 8, characterized in that, The first transmission group and the second transmission group are respectively disposed on both sides of the fluid channel along the length direction of the cleaning component.

10. A cleaning head comprising a housing for movement on a surface to be cleaned, the housing defining a fluid channel, characterized in that, The housing further defines a first cavity, which is in fluid communication with the fluid channel; A cleaning device is used to clean the surface to be cleaned. The cleaning device includes a drive motor, a transmission structure, and a cleaning component. The drive motor is used to drive the cleaning component to move along a motion trajectory through the transmission structure. The cleaning component and part of the transmission structure are disposed inside the first cavity, while the drive motor and the remaining part of the transmission structure are disposed outside the first cavity.

11. The cleaning head as claimed in claim 10, characterized in that, The transmission structure includes a first transmission group, which includes a first eccentric wheel, a first connecting rod connected to the first eccentric wheel, and a first guide structure. The first eccentric wheel rotates to drive the first connecting rod to move relative to the first guide structure. The first end of the first connecting rod is connected to the first eccentric wheel, and the cleaning member is disposed at the second end of the first connecting rod. A portion of the first connecting rod is located inside the first cavity, and another portion of the first connecting rod is located outside the first cavity.

12. The cleaning head as described in claim 11, characterized in that, The first guide structure includes a support rod, and the first connecting rod is provided with a stroke groove corresponding to the support rod. The support rod and the stroke groove cooperate with each other to limit the movement trajectory of the first connecting rod; the support rod is disposed on the outside of the first cavity.

13. The cleaning head as described in claim 11, characterized in that, The first cavity includes a suction cavity communicating with the fluid channel and a cleaning cavity communicating with the suction cavity, wherein the cleaning cavity and the fluid channel are located on both sides of the suction cavity.

14. The cleaning head as described in claim 13, characterized in that, The cleaning component includes a bracket and a wiping strip mounted on the bracket. The length of the wiping strip is greater than the length of the cleaning cavity, so that the wiping strip protrudes from the side wall of the housing.

15. A surface cleaning apparatus comprising a suction motor for generating a flow of suction air and a suction duct to direct the flow of suction air, characterised in that, The suction pipe is in fluid communication with the fluid channel of the cleaning head according to any one of claims 1-14.

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