Cleaning assembly and cleaning equipment

Abstract

The utility model relates to a cleaning assembly and cleaning equipment. The cleaning assembly comprises a roller cleaning assembly, and the roller cleaning assembly comprises a roller support; the rear cleaning assembly comprises a rear support, an elastic piece, a transmission shaft and a first driving piece, the first driving piece is used for driving the rear cleaning assembly to horizontally move in the axial direction of the roller cleaning assembly relative to the roller support, and the transmission shaft is rotationally connected with the rear support; wherein the rear cleaning assembly comprises an inward folding mode and an outward swinging mode, and when the rear cleaning assembly is in the inward folding mode, the roller support limits the rear support to rotate around the transmission shaft; when the mode is switched from the inward-retracting mode to the outward-swinging mode, the first driving piece drives the rear cleaning assembly to move horizontally in the axial direction relative to the roller support till the roller support is unlimited, and the elastic piece provides elastic force to drive the rear support to rotate relative to the transmission shaft so as to switch the mode to the outward-swinging mode.

Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and in particular to a cleaning component and cleaning device. Background Technology

[0002] Currently, to meet diverse user needs, sweeping machines on the market tend to integrate floor scrubbing roller technology to achieve sweeping and mopping in one. However, due to the limited axial length of the roller, there are blind spots in cleaning, resulting in less than satisfactory cleaning performance. Utility Model Content

[0003] This disclosure provides a cleaning component and a cleaning device to address the shortcomings of the related art.

[0004] According to a first aspect of the present disclosure, a cleaning component is provided, comprising:

[0005] A roller cleaning assembly, the roller cleaning assembly including a roller support;

[0006] A rear cleaning assembly includes a rear support, an elastic element, a drive shaft, and a first drive element. The first drive element is used to drive the rear cleaning assembly to translate relative to the roller support along the axial direction of the roller cleaning assembly. The drive shaft is rotatably connected to the rear support.

[0007] The rear cleaning component includes an inward retracting mode and an outward swinging mode. When the rear cleaning component is in the inward retracting mode, the roller bracket limits the rotation of the rear bracket around the drive shaft.

[0008] When switching from the inward-facing mode to the outward-facing mode, the first driving member drives the rear cleaning assembly to translate relative to the roller bracket along the axial direction until the roller bracket is released from its limit. The elastic member provides elastic force to drive the rear bracket to rotate relative to the drive shaft, so as to switch to the outward-facing mode.

[0009] Optionally, the roller cleaning assembly includes a transmission rack fixedly connected to the roller bracket, the transmission rack being arranged along the axial direction of the roller cleaning assembly;

[0010] The rear cleaning component includes a transmission gear that is connected to the first drive unit. The transmission gear moves synchronously with the drive shaft and meshes with the transmission rack.

[0011] Optionally, the transmission rack includes a rack region and a first guide bar disposed on at least one side of the rack region;

[0012] The rear cleaning assembly further includes a sliding block rotatably connected to the drive shaft, the sliding block including a first guide groove that slides along the axial direction of the first guide bar with the first guide bar.

[0013] Optionally, the sliding block includes a receiving cavity, with the first guide groove located on one side of the receiving cavity in the axial direction of the drive shaft, and the drive gear disposed in the receiving cavity and connected to the drive shaft passing through the receiving cavity.

[0014] Optionally, the roller cleaning assembly further includes a second guide strip;

[0015] The rear cleaning assembly includes a guide block rotatably connected to the drive shaft. The guide block includes a second guide groove that guides and engages with the second guide strip along the axial direction of the roller cleaning assembly. The first driving member is used to drive the guide block to translate axially relative to the second guide strip.

[0016] Optionally, the elastic element includes a torsion spring sleeved on the drive shaft, the torsion spring including a pressing end that abuts against the rear bracket;

[0017] When the rear cleaning component is in the retracted mode, and the torsion spring is in a deformed state, the pressing end presses against the rear bracket. When the roller bracket is released from its limit, the pressing end of the elastic element releases its elastic force, and the torsion spring drives the rear bracket to rotate relative to the transmission shaft to switch to the outward swing mode.

[0018] Optionally, the rear support includes a receiving cavity and a plurality of limiting blocks disposed within the receiving cavity, wherein the torsion spring is located within the receiving cavity and the pressing end is in contact with each of the limiting blocks in a corresponding manner.

[0019] Optionally, the roller bracket includes a limiting surface, which includes a limiting area and an unlocking area. The limiting area is arranged parallel to the axial direction of the roller cleaning assembly. The unlocking area is an inclined surface that slopes from the end of the limiting area away from the rear cleaning assembly and the limiting area. In a direction perpendicular to the limiting area, the projection of the limiting area and the projection of the unlocking area are separated.

[0020] Optionally, the rear support includes a support body and a roller rotatably connected to the support body. When the rear cleaning component is in the retracted mode, the roller remains in contact with the limiting area. When the rear cleaning component is in the outward swing mode, the roller remains in contact with the unlocking area.

[0021] According to a second aspect of the present disclosure, a cleaning device is provided, comprising a cleaning component as described in any of the foregoing embodiments.

[0022] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0023] As can be seen from the above embodiments, in the technical solution disclosed herein, the roller bracket limits and unlocks the rear cleaning component by translating between the rear cleaning component and the roller bracket. The elastic element can drive the rear cleaning component to swing outward, thereby switching to the outward swing mode, so that the cleaning actuator is located more on the outside, which is conducive to cleaning the remaining dead corner areas and improving the cleaning effect.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] Figure 1 This is a schematic diagram of the structure of a cleaning component according to an exemplary embodiment.

[0027] Figure 2 yes Figure 1 An exploded view of the cleaning components.

[0028] Figure 3 This is a partial cross-sectional schematic diagram of a cleaning component according to an exemplary embodiment.

[0029] Figure 4 This is another partial cross-sectional schematic diagram of a cleaning component according to an exemplary embodiment.

[0030] Figure 5 This is a schematic diagram illustrating the state of a cleaning component according to an exemplary embodiment.

[0031] Figure 6 This is a schematic diagram of another state of a cleaning component according to an exemplary embodiment.

[0032] Figure 7 This is a schematic diagram of the structure of a sliding block according to an exemplary embodiment.

[0033] Figure 8 This is a partial schematic diagram of a rear support according to an exemplary embodiment. Detailed Implementation

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0035] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0037] Figure 1 This is a schematic diagram illustrating the structure of a cleaning component according to an exemplary embodiment. Figure 2 yes Figure 1 An exploded view of the cleaning components. (See diagram below.) Figure 1 and Figure 2 As shown, the cleaning assembly includes a roller cleaning assembly 1 and a rear cleaning assembly 2. The roller cleaning assembly 1 and the rear cleaning assembly 2 can be arranged front and rear along the straight direction of the cleaning equipment to which the cleaning assembly belongs. For example, in the straight direction, the rear cleaning assembly 2 can be located behind the roller cleaning assembly 1. The roller cleaning assembly 1 can include structures such as a roller bracket 11, a cleaning roller, and a roller motor. The roller motor can drive the cleaning roller to rotate, achieving a sweeping and mopping effect.

[0038] like Figure 3 and Figure 4As shown, the rear cleaning assembly 2 may include a rear support 21, an elastic element 22, a drive shaft 23, a first drive element 24, and a cleaning actuator 25. The rear support 21 can form the housing of the rear cleaning assembly 2. For example, the rear support 21 may include an outer frame body, a cover plate, and a base plate. The cover plate and base plate are then connected to the outer frame body to form a relatively complete receiving cavity. The elastic element 22, drive shaft 23, and first drive element 24 are all disposed within this receiving cavity. The drive shaft 23 can also be rotatably connected to the rear support 21. For example, one end of the drive shaft 23 is rotatably connected to the cover plate, and the other end is rotatably connected to the floor. This allows for relative rotation between the drive shaft 23 and the rear support 21, and also enables the rear support 21 to move synchronously when the drive shaft 23 is subjected to external force for translation.

[0039] A translational degree of freedom is provided between the roller support 11 and the rear cleaning assembly 2, which is arranged along the axial direction of the roller cleaning assembly. Furthermore, the first driving member 24 can drive the rear cleaning assembly 2 to translate relative to the roller support along the axial direction of the roller cleaning assembly. Figure 3 As shown, the first driving member 24 can drive the rear cleaning component 2 to translate in the left and right direction relative to the roller bracket 11. The translation direction of the rear cleaning component 2 can be realized by controlling the rotation direction of the first driving member 24.

[0040] Furthermore, the rear cleaning component 2 may include an inward retraction mode and, for example, a retractable mode. Figure 5 In the outward swing mode shown, when the rear cleaning component 2 is in the inward swing mode, the rotation of the rear support 21 relative to the drive shaft 23 can be limited by the roller support 11, preventing the rear support 21 from being driven to rotate relative to the drive shaft 23 by the elastic force provided by the elastic element 22 in a deformed state, thus switching the relative position relationship between the rear cleaning component 2 and the roller cleaning component 1. When switching from the inward swing mode to the outward swing mode, the first drive element 24 can drive the rear cleaning component 2 to translate relative to the roller support along the axial direction of the roller cleaning component 1 until the roller support 11 releases its limitation on the rear cleaning component 2. For example, as Figure 3 The first driving component 24 rotates counterclockwise, and the rear cleaning component 2 moves to the right along the roller bracket 11 until the roller bracket is released from its limit position, that is, at this time the cleaning component is in the position of rotation. Figure 6 The state shown. Further, since the roller support 11 is released from its limiting position, the elastic element 22, which is in a deformed state, can provide elastic force to drive the rear support 21 to rotate relative to the drive shaft 23, thereby allowing the entire rear cleaning assembly 2 to rotate relative to the drive shaft 23, towards... Figure 5 The outward swing mode is shown.

[0041] When switching from the outward-swinging mode to the inward-folding mode, the first drive component 24 reverses, that is, rotates clockwise, driving the rear cleaning component towards... Figure 3 The leftward movement of the rear support 21, combined with the leftward movement of the rear support 21, causes the roller support 11 to return to its limit position and press against the rear support 21, resulting in the rear support 21 driving the entire rear cleaning assembly 2 to retract inward relative to the roller support 11, switching to... Figure 6 As shown, further through the action of the first driving member 24, the rear cleaning assembly 2 relative to the roller bracket 11... Figure 6 Move to the left from the previous position to switch to inward mode.

[0042] As can be seen from the above embodiments, in the technical solution of this disclosure, the rear cleaning component 2 is positioned and unlocked by the roller bracket 11 through translation between the rear cleaning component 2 and the roller bracket 11. The elastic element 22 drives the rear cleaning component 2 to swing outward, thereby switching to the outward swing mode. This positions the cleaning actuator 25 further outward, facilitating cleaning of remaining dead-end areas and improving the cleaning effect. Of course, to further enhance the cleaning effect, the rear cleaning component 2 also includes a second driving element 26. This second driving element 26 can drive the cleaning actuator 25 to rotate relative to the rear bracket 21, achieving the self-rotation of the cleaning actuator 25 and strengthening the cleaning effect. The second driving element 26 and the cleaning actuator 25 can be directly connected, or they can be connected via a transmission element; this disclosure does not impose any limitations on this.

[0043] In some embodiments, the roller cleaning assembly 1 further includes a transmission rack 12 fixedly connected to the roller support 11, the transmission rack 12 being arranged axially along the roller cleaning assembly 1. The rear cleaning assembly 2 includes a transmission gear 27 connected to the first drive member 24, and the transmission gear 27 moves synchronously with the transmission shaft 23, for example, through a key connection, pin connection, or bolt connection between the transmission gear 27 and the transmission shaft 23. The transmission gear 27 also meshes with the transmission rack 12, as configured in... Figure 3 and Figure 4 As shown, when the first driving component 24 rotates counterclockwise, it drives the transmission gear 27 to rotate clockwise and counterclockwise, thereby causing the rear cleaning component 2 to move to the right relative to the roller support 11, realizing the translational freedom between the rear cleaning component 2 and the roller support 11. Moreover, through the meshing between the transmission gear 27 and the transmission rack 12, the transmission is stable and reliable.

[0044] The transmission gear 27 can be directly connected to the first driving member 24, or other transmission members can be set between the transmission gear 27 and the first driving member 24 to achieve the purpose of deceleration or acceleration. The specific design can be customized as needed, and this disclosure does not impose any restrictions on it.

[0045] Furthermore, the transmission rack 12 includes a rack region 121 and a first guide bar 122 disposed on at least one side of the rack region 121, for example... Figure 4 As shown, first guide bars 122 can be provided on both sides of the rack area 121. The rear cleaning assembly 2 also includes a sliding block 28, which is rotatably connected to the drive shaft 23, and as shown... Figure 7 As shown, the sliding block 28 includes a first guide groove 281, which is connected one-to-one with the first guide bar 122, and achieves a sliding engagement in the axial direction of the roller cleaning assembly 1. With this configuration, when the transmission gear 27 and transmission rack 12 move relative to each other along the axial direction of the roller cleaning assembly 1, the first guide groove 281 and the first guide bar 122 can cooperate to guide the movement, improving the accuracy of the rear cleaning assembly 2 relative to the roller support 11 along the axial direction of the roller cleaning assembly 1. Furthermore, through the rotatable connection between the sliding block 28 and the transmission shaft 23, when the rear support 21 rotates relative to the transmission shaft 23, the sliding block 28 can rotate relative to the transmission shaft 23 under the limiting action of the first guide bar 122, maintaining the guiding engagement between the first guide groove 281 and the first guide bar 122, facilitating guidance when the rear cleaning assembly 2 switches to an inward retraction mode.

[0046] Furthermore, still based on Figure 7 As shown, the sliding block 28 also includes a receiving cavity 282. A first guide groove 281 is located on one side of the receiving cavity 282 along the axial direction of the drive shaft 23. The drive gear 27 can be disposed within the receiving cavity 282, and the drive shaft 23 can pass through the receiving cavity 282 to achieve a rotatable connection with the sliding block 28. Simultaneously, the drive gear 27 is fixedly connected to the drive shaft 23. This configuration, by housing the drive gear 27 in the receiving cavity 282, reduces the size of the rear cleaning component 2, thus improving its aesthetics.

[0047] The above-described scheme achieves the translation of the rear cleaning assembly 2 relative to the roller support 11 through the cooperation of the transmission gear 27 and the transmission rack 12. In other embodiments, the roller cleaning assembly 1 further includes a second guide bar; the rear cleaning assembly 2 includes a guide block rotatably connected to the transmission shaft 23, the guide block including a second guide groove that guides the second guide bar axially along the roller cleaning assembly, and a first driving member 24 for driving the guide block to translate axially relative to the second guide bar. In other words, the guide block can be directly driven to translate relative to the second guide bar by the first driving member 24, which simplifies the structure compared to the aforementioned scheme. In some other embodiments, the axial translation between the rear cleaning assembly 2 and the roller support 11 can also be achieved by a lead screw structure.

[0048] In the above embodiments, the rear support 21 further includes a receiving cavity 211 through which the drive shaft 23 can pass and be rotatably connected to the cover plate and the bottom plate of the rear support 21, respectively. Since the drive shaft 23 passes through the receiving cavity 211, the drive gear 27 can be disposed within the receiving cavity 211, and the sliding block 28 can also be disposed within the receiving cavity 211. The drive gear 27 can mesh with the drive rack 12 through the opening side of the receiving cavity 211. This arrangement facilitates the miniaturization of the rear cleaning component 2.

[0049] In some embodiments, the elastic element 22 includes a torsion spring sleeved on the drive shaft 23. The torsion spring includes a pressing end 221 that abuts against the rear bracket 21. When the rear cleaning assembly 2 is in the retracted mode, the torsion spring is in a deformed state, and the pressing end 221 presses against the rear bracket 21. At this time, as... Figure 6 As shown, due to the limiting effect of the roller bracket 11, even if the pressing end 221 presses against the rear bracket 21, the rear bracket 21 will not rotate relative to the drive shaft 23. When the roller bracket 11 is released from the limiting position, the pressing end 221 of the torsion spring releases its elastic force, and the torsion spring can drive the rear bracket 21 to rotate relative to the drive shaft 23 to switch to the outward swing mode. When switching from the outward swing mode to the inward swing mode, the rotation of the rear bracket 21 relative to the drive shaft 23 can press against the pressing end 221 of the torsion spring until the roller bracket 11 limits the rear bracket 21 again. At this time, the torsion spring switches to the deformation state and stores energy to be released the next time the rear cleaning component 2 switches to the outward swing mode. In this way, the outward swing action of the rear cleaning component 2 is realized through the energy storage and release of the torsion spring. The structure is simple and does not require a drive source such as a motor.

[0050] Furthermore, such as Figure 8 As shown, the rear support 21 also includes a limiting block 212 disposed within the receiving cavity 211. A torsion spring can be disposed within the receiving cavity 211, and the pressing end 221 remains in contact with the limiting block 212, thus facilitating the energy storage and release of the pressing end 221. Figure 8 As shown, the rear support 21 may include multiple limiting blocks 212, and the limiting blocks 212 are connected to the pressing end 221 in a one-to-one contact configuration. In this way, the rear cleaning component 2 can be swung outward through the action of multiple pressing ends 221, thereby improving the reliability and speed of the outward swing action.

[0051] In the above embodiments, the limiting and unlocking of the roller bracket 11 are as follows: Figure 2 , Figure 5 and Figure 6As shown, the roller support 11 includes a limiting surface 111, which includes a limiting area 112 and an unlocking area 113 connected to the limiting area 112. The limiting area 112 is arranged parallel to the axial direction of the roller cleaning assembly. The unlocking area 113 is an inclined surface that slopes from the end of the limiting area 112 away from the rear cleaning assembly 2 and the limiting area 112. That is, the unlocking area 113 is actually a surface that extends inclinedly from the limiting area 112. Figure 6 As shown, when the end of the rear bracket 21 abuts against the limiting area 112, the rear bracket 21 needs to push into the limiting area 112 when it rotates outward relative to the drive shaft 23. However, due to the fixed setting of the roller bracket 11, it cannot provide space for it. Therefore, the limiting area 112 can limit the rotation of the rear bracket 21, thereby restricting the outward swing of the rear cleaning component 2. When the rear cleaning component 2 moves forward relative to the roller bracket 11, at the moment it moves to the unlocking area 113, due to the avoidance of the unlocking area 113, the pressing end 221 of the torsion spring releases its elastic force, pushing the rear bracket 21 to rotate relative to the drive shaft 23, and the rear cleaning component switches to the outward swing mode.

[0052] When switching from the outward swing mode to the inward retraction mode, the first drive member 24 rotates, driving the transmission gear 27 and the transmission rack 12 to mesh and move inward. The rear bracket 21 moves along the unlocking area 113 toward the limiting area 112, simultaneously compressing the pressing end 221 of the torsion spring, causing the torsion spring to deform and store energy. When the rear bracket 21 abuts against the limiting area 112, the torsion spring switches to the deformed state. Under the continued action of the first drive member 24, the rear cleaning component 2 switches to the inward retraction mode.

[0053] Furthermore, to ensure smooth movement of the rear support 21 in the limiting area 112 and the unlocking area 113 and prevent jamming, the rear support 21 includes a support body 213 and a roller 214 rotatably connected to the support body 213. A receiving cavity 211 can be disposed in the support body 213, and a limiting block 212 is also disposed in the support body 213. When the rear cleaning component is in the retracted mode, the roller 214 contacts the limiting area 112. When the rear cleaning component 2 switches to the outward swing mode, the roller 214 rolls on the surface of the limiting area 112 as the rear cleaning component 2 moves. When the roller 214 contacts the unlocking area 113, the roller support 11 releases its limiting position. During the rotation of the rear support 21, the roller 214 moves along the unlocking area 113 until the rear cleaning component 2 switches to the outward swing mode, at which point the roller 214 contacts the unlocking area 113.

[0054] Based on the technical solution of this disclosure, a cleaning device is also provided, which may include the cleaning components described in any of the foregoing embodiments. The cleaning device may further include a body, with a roller bracket fixedly connected to the body, or the roller bracket may be slidably connected to the body along the axial direction of the roller cleaning component. This allows the roller bracket to be moved laterally, causing the roller cleaning component to protrude axially outward from the body, thereby achieving edge cleaning of the target area and improving the cleaning effect. This cleaning device may include a sweeper or a sweeper-mop combo.

[0055] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0056] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A cleaning assembly characterized by, include: A roller cleaning assembly, the roller cleaning assembly including a roller support; A rear cleaning assembly includes a rear support, an elastic element, a drive shaft, and a first drive element. The first drive element is used to drive the rear cleaning assembly to translate relative to the roller support along the axial direction of the roller cleaning assembly. The drive shaft is rotatably connected to the rear support. The rear cleaning component includes an inward retracting mode and an outward swinging mode. When the rear cleaning component is in the inward retracting mode, the roller bracket limits the rotation of the rear bracket around the drive shaft. When switching from the inward-facing mode to the outward-facing mode, the first driving member drives the rear cleaning assembly to translate relative to the roller bracket along the axial direction until the roller bracket is released from its limit. The elastic member provides elastic force to drive the rear bracket to rotate relative to the drive shaft, so as to switch to the outward-facing mode.

2. The cleaning assembly of claim 1, wherein, The roller cleaning assembly includes a transmission rack fixedly connected to the roller bracket, and the transmission rack is arranged along the axial direction of the roller cleaning assembly; The rear cleaning component includes a transmission gear that is connected to the first drive unit. The transmission gear moves synchronously with the drive shaft and meshes with the transmission rack.

3. The cleaning component according to claim 2, characterized in that, The transmission rack includes a rack region and a first guide bar disposed on at least one side of the rack region; The rear cleaning assembly further includes a sliding block rotatably connected to the drive shaft, the sliding block including a first guide groove that slides along the axial direction of the first guide bar with the first guide bar.

4. The cleaning assembly of claim 3, wherein, The sliding block includes a receiving cavity, and the first guide groove is located on one side of the receiving cavity in the axial direction of the transmission shaft. The transmission gear is disposed in the receiving cavity and connected to the transmission shaft passing through the receiving cavity.

5. The cleaning assembly of claim 1, wherein, The roller cleaning assembly also includes a second guide bar; The rear cleaning assembly includes a guide block rotatably connected to the drive shaft. The guide block includes a second guide groove that guides and engages with the second guide strip along the axial direction of the roller cleaning assembly. The first driving member is used to drive the guide block to translate axially relative to the second guide strip.

6. The cleaning assembly of claim 1, wherein, The elastic element includes a torsion spring sleeved on the drive shaft, and the torsion spring includes a pressing end that abuts against the rear bracket; When the rear cleaning component is in the retracted mode, the torsion spring is in a deformed state, the pressing end presses against the rear bracket, and when the roller bracket is released from its limit, the pressing end of the elastic element releases its elastic force, and the torsion spring drives the rear bracket to rotate relative to the transmission shaft to switch to the outward swing mode.

7. The cleaning assembly of claim 6, wherein, The rear support includes a receiving cavity and a plurality of limiting blocks disposed in the receiving cavity. The torsion spring is located in the receiving cavity and the pressing end is in contact with the limiting blocks one by one.

8. The cleaning assembly of claim 1, wherein, The roller bracket includes a limiting surface, which includes a limiting area and an unlocking area. The limiting area is arranged parallel to the axial direction of the roller cleaning assembly. The unlocking area is an inclined surface that slopes from the end of the limiting area away from the rear cleaning assembly and the limiting area. In a direction perpendicular to the limiting area, the projection of the limiting area and the projection of the unlocking area are separated.

9. The cleaning assembly of claim 8, wherein, The rear support includes a support body and a roller rotatably connected to the support body, when the rear cleaning assembly is in the inward retraction mode, the roller keeps contact with the limiting area, and when the rear cleaning assembly is in the outward swing mode, the roller keeps contact with the unlocking area.

10. A cleaning apparatus, characterized by A cleaning assembly comprising any one of claims 1-9.

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