Cleaning device and application mouthpiece assembly thereof

Abstract

This application discloses a cleaning device and its suction port assembly. The cleaning device is used to clean surfaces and includes a suction port assembly. The suction port assembly includes a switching member movably disposed relative to a channel member, through which the absorption channel absorbs dirt. A driving mechanism for the suction port assembly can drive the switching member to switch between a first state and a second state. When the switching member is switched to the first state, the highest point of the suction port has a first distance from the surface to be cleaned; when the switching member is switched to the second state, the highest point of the suction port has a second distance from the surface to be cleaned; wherein the first distance is greater than the second distance. Through this method, this application can achieve efficient recovery of both liquid and solid dirt.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and more specifically to a cleaning device and its suction nozzle assembly. Background Technology

[0002] Floor scrubbers and other cleaning equipment with cleaning functions make it convenient for users to clean floors, carpets, and other surfaces, thus gaining widespread use. However, to improve wastewater recycling efficiency, current cleaning equipment often features narrow suction ports that interfere with carpet cleaning. Because of the small ventilation area and interference with the carpet, these ports are not effective at absorbing dirt such as hair. Unabsorbed hair eventually gets tangled in the cleaning machine's roller brush, often requiring manual cleaning and increasing the user's workload. Summary of the Invention

[0003] This application provides a cleaning device and a suction assembly for its application, which can balance the recycling efficiency of both liquid and solid dirt.

[0004] This application provides a cleaning device. The cleaning device is used to clean a surface to be cleaned. The cleaning device includes: a device body; and a suction port assembly disposed on the device body; wherein the suction port assembly includes: a channel member having an absorption channel; a suction port through which the absorption channel absorbs dirt; a switching member movably disposed relative to the channel member; and a drive mechanism, which is throttlely connected to the switching member. The drive mechanism is used to drive the switching member to move, causing the switching member to switch between a first state and a second state; wherein, when the switching member switches to the first state, the highest point of the suction port has a first distance from the surface to be cleaned, and when the switching member switches to the second state, the highest point of the suction port has a second distance from the surface to be cleaned, and the first distance is greater than the second distance.

[0005] In one embodiment of this application, the switching member is used to form a suction port; when the switching member is switched to a first state, the switching member has a first distance from the surface to be cleaned; when the switching member is switched to a second state, the switching member has a second distance from the surface to be cleaned.

[0006] In one embodiment of this application, the driving mechanism includes an enabling member that is connected to the switching member and is operated by a user; wherein the user actively operates the enabling member to drive the switching member to switch between a first state and a second state.

[0007] In one embodiment of this application, the cleaning device has a predetermined direction perpendicular to the surface to be cleaned; the driving mechanism includes: a fixed member fixed to the channel member; a movable member movably disposed on the fixed member synchronously with the switching member; and a limiting member fixed to the fixed member, wherein the limiting member has a first limiting portion and a second limiting portion; wherein the switching member is capable of moving along the predetermined direction to switch between a first state and a second state; when the switching member switches to the first state, the first limiting portion restricts the switching member to the current position through the movable member, and when the switching member switches to the second state, the second limiting portion restricts the switching member to the current position through the movable member.

[0008] In one embodiment of this application, the movable member can also be rotatably disposed on the switching member, and the movable member has a first mating part; the first limiting part and the second limiting part are distributed sequentially along the circumference of the limiting member, and both the first limiting part and the second limiting part are groove structures; wherein, when the switching member is switched to the first state, the movable member rotates until the first mating part is embedded in the first limiting part, and when the switching member is switched to the second state, the movable member rotates until the first mating part is embedded in the second limiting part.

[0009] In one embodiment of this application, the driving mechanism further includes: an enabling member movably disposed on the fixed member, wherein the enabling member moves along a predetermined direction to drive the movable member to move; and an elastic member, which is transmissionally connected to the movable member; wherein at least one of the movable member and the enabling member has an inclined surface that is inclined relative to the predetermined direction; in response to the elastic restoring force of the elastic member, the inclined surface guides the movable member to rotate until the first mating part is engaged with the first limiting part or the second limiting part.

[0010] In one embodiment of this application, the inclined surface includes a first mating inclined surface and a driving inclined surface. The first mating inclined surface is disposed on the first mating portion, and the driving inclined surface is disposed on the enabling member. In the process of the switching member switching from the first state to the second state, the enabling member drives the movable member to move so that the first mating portion disengages from the first limiting portion. In response to the elastic restoring force of the elastic member, the first mating inclined surface and the driving inclined surface fit together and guide the movable member to rotate until the first mating portion is embedded in the second limiting portion.

[0011] In one embodiment of this application, the movable member further includes: a second mating portion adjacent to the first mating portion, wherein the second mating portion has a second mating inclined surface adjacent to the first mating inclined surface and facing the first mating inclined surface; the enabling member further includes: a driving portion having a driving inclined surface and a guiding inclined surface, wherein the driving inclined surface is adjacent to the guiding inclined surface and the two are disposed opposite to each other; wherein, during the process of the first mating portion being inserted into the second limiting portion, the second mating inclined surface and the guiding inclined surface fit together and guide the second mating portion through the driving portion.

[0012] In one embodiment of this application, the inclined surface includes a third mating inclined surface and a driving inclined surface. The third mating inclined surface and the first mating part are distributed sequentially along the circumference of the movable member, and the driving inclined surface is disposed on the enabling member. In the process of the switching member switching from the second state to the first state, the enabling member drives the movable member to move so that the first mating part disengages from the second limiting part. In response to the elastic restoring force of the elastic member, the third mating inclined surface and the driving inclined surface fit together and guide the movable member to rotate until the first mating part is embedded in the first limiting part.

[0013] In one embodiment of this application, the movable member further comprises: a third mating portion, spaced apart from the first mating portion in the circumferential direction of the movable member, wherein a third mating inclined surface is provided on the third mating portion; and a fourth mating portion, adjacent to the third mating portion, wherein the fourth mating portion has a fourth mating inclined surface adjacent to and facing the third mating inclined surface; the enabling member further comprises: a driving portion, provided with a driving inclined surface and a guiding inclined surface, the driving inclined surface adjacent to the guiding inclined surface and the two being disposed opposite to each other; wherein, during the process of the first mating portion being inserted into the first limiting portion, the fourth mating inclined surface and the guiding inclined surface are in contact with each other and the fourth mating portion is guided through the driving portion.

[0014] In one embodiment of this application, the groove wall of the second limiting part has a guide groove wall and a limiting groove wall. The guide groove wall is inclined relative to a predetermined direction, and the limiting groove wall is connected to the first limiting part through the guide groove wall. In the process of the first mating part being inserted into the second limiting part, the first mating part moves along the guide groove wall to abut against the limiting groove wall.

[0015] In one embodiment of this application, the limiting member further includes: a transition slope located on the side of the first limiting portion away from the second limiting portion; wherein the transition slope is inclined relative to a predetermined direction to guide the first mating portion to be embedded in the first limiting portion.

[0016] In one embodiment of this application, the first limiting portion has: a groove bottom; a first groove wall located on one side of the groove bottom in the circumferential direction of the limiting member; and a second groove wall located on the other side of the groove bottom in the circumferential direction of the limiting member; wherein, the end of the first groove wall away from the groove bottom is closer to the groove bottom than the end of the second groove wall away from the groove bottom; during the process of the first mating portion being inserted into the first limiting portion, the first mating portion rotates with the movable member to abut against the second groove wall, and then is inserted into the first limiting portion along the second groove wall.

[0017] In one embodiment of this application, the movable member has at least two sets of mating parts arranged sequentially along its circumference, each mating part assembly including a first mating part; the limiting member has at least two sets of limiting part assemblies arranged sequentially along its circumference, each limiting part assembly including a first limiting part and a second limiting part; wherein, in response to the switching member alternately switching between a first state and a second state, the movable member rotates periodically, such that the first mating part of each mating part assembly periodically engages with the first limiting part and the second limiting part of each limiting part assembly.

[0018] Accordingly, this application also provides a suction port assembly for a cleaning device. The suction port assembly includes: a channel member having an absorption channel; a suction port through which the absorption channel absorbs dirt; a switching member being movably disposed relative to the channel member; and a drive mechanism being pulsatorically connected to the switching member. The drive mechanism is used to drive the switching member to move, causing the switching member to switch between a first state and a second state. When the switching member switches to the first state, the highest point of the suction port has a first distance from the surface to be cleaned, and when the switching member switches to the second state, the highest point of the suction port has a second distance from the surface to be cleaned, wherein the first distance is greater than the second distance.

[0019] The beneficial effects of this application are: unlike the prior art, this application provides a cleaning device and a suction port assembly for its application. The cleaning device of this application includes a suction port assembly. The suction port assembly includes a switching member movably disposed relative to a channel member, and the absorption channel absorbs dirt through the suction port. The driving mechanism of the suction port assembly can drive the switching member to switch between a first state and a second state.

[0020] When the switching component is switched to the first state, the highest point of the suction port has a first distance from the surface to be cleaned; when the switching component is switched to the second state, the highest point of the suction port has a second distance from the surface to be cleaned; wherein the first distance is greater than the second distance. In other words, when the switching component is switched to the first state, the distance between the highest point of the suction port and the surface to be cleaned is larger, which is beneficial to increase the ventilation area of ​​the suction port and thus increase the flow rate or reduce the degree of interference between the suction port and the surface to be cleaned. At this time, the suction port can efficiently absorb solid dirt such as human or animal hair, fibers, and lint. When the switching component is switched to the second state, the distance between the highest point of the suction port and the surface to be cleaned is smaller, which is beneficial to reduce the ventilation area of ​​the suction port and thus increase the vacuum degree or bring the suction port closer to the surface to be cleaned. At this time, the suction port can efficiently absorb liquid dirt such as sewage. In summary, this application can take into account the recovery efficiency of both liquid and solid dirt. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1a This is a schematic diagram of the structure of an embodiment of the cleaning device of this application;

[0023] Figure 1b This is a schematic diagram of the structure of an embodiment of the suction nozzle assembly of this application;

[0024] Figure 2 yes Figure 1b A schematic diagram of another state of the suction port assembly shown;

[0025] Figure 3 yes Figure 1b The exploded structure diagram of the suction port assembly shown;

[0026] Figure 4 This is a structural schematic diagram of an embodiment of the switching component and drive mechanism of this application;

[0027] Figure 5 yes Figure 4 A schematic diagram of the structure of region A in the switching component and drive mechanism shown;

[0028] Figure 6 yes Figure 4 A schematic diagram showing another state of the switching component and the drive mechanism;

[0029] Figure 7 yes Figure 6 A schematic diagram of the structure of region B in the switching component and drive mechanism shown;

[0030] Figure 8 This is a schematic diagram of the structure of one embodiment of the active component of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10 Suction port assembly; 11 Channel component; 111 Absorption channel; 112 First cover; 1121 Opening; 1122 Sealing surface; 113 Second cover; 1131 Second end; 12 Switching component; 121 First end; 122 Boss; 123 Limiting post; 13 Suction port; 14 Sealing element; 15 Fixing base; 20 Surface to be cleaned; 30 Drive mechanism; 31 Enabling component; 311 Drive unit; 312 Drive slope; 313 Guide slope; 32 Fixing component; 33 Moving part; 33 1 First mating part; 331a First mating inclined surface; 332 Second mating part; 332a Second mating inclined surface; 333 Third mating part; 333a Third mating inclined surface; 334 Fourth mating part; 334a Fourth mating inclined surface; 335 Mating part assembly; 34 Limiting member; 341 First limiting part; 342 Second limiting part; 3421 Guide groove wall; 3422 Limiting groove wall; 343 Transition inclined surface; 344 Limiting part assembly; 35 Elastic member; 40 Brush head assembly; 50 Handheld assembly. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0034] This application provides a cleaning device and a suction nozzle assembly for its application, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0035] Please see Figure 1a , Figure 1b and Figure 2 , Figure 1a This is a schematic diagram of the structure of one embodiment of the cleaning device of this application. Figure 1b This is a schematic diagram of the structure of an embodiment of the suction nozzle assembly of this application. Figure 2 yes Figure 1b The diagram shows another state of the suction port assembly.

[0036] In one embodiment, the cleaning device can be a floor scrubber, a cleaning machine, or other cleaning equipment, such as a floor scrubber, carpet cleaner, or fabric cleaner. The cleaning device is used to clean the surface 20 to be cleaned; specifically, the cleaning device can move on the surface 20 to clean it, where the surface 20 corresponds to the floor, carpet surface, sofa surface, etc. For example, this application embodiment uses a carpet cleaner as an example to illustrate the cleaning device. The cleaning device typically includes a brush head assembly 40 and a handheld assembly 50. The user can grasp the handheld assembly 50 to push the brush head assembly 40 across the carpet surface, using the brush head assembly 40 to clean the carpet area it passes over. The cleaning device cleans the carpet using a cleaning roller brush, and the main motor of the cleaning device generates negative pressure to collect dirt from the carpet through the suction port 13 described below, achieving the purpose of cleaning the carpet. The suction port 13 is located on the front side of the cleaning roller brush.

[0037] Specifically, the cleaning device includes a main body. The main body is the core of the cleaning device, providing support and protection for the remaining components. It includes the aforementioned brush head assembly 40 and handheld assembly 50. The cleaning device also includes a suction port assembly 10. The suction port assembly 10 is located within the main body, specifically within the brush head assembly 40, and is used to absorb dirt to clean the surface 20 to be cleaned. The dirt absorbed by the suction port assembly 10 includes liquid dirt such as sewage, as well as solid dirt such as human or animal hair, fibers, and lint.

[0038] Please refer to the following: Figure 3 , Figure 3 yes Figure 1b The diagram shows the exploded structure of the suction port assembly.

[0039] The suction nozzle assembly 10 of the present application will be described below.

[0040] In one embodiment, the suction port assembly 10 includes a channel member 11. The channel member 11 has an absorption channel 111 for absorbing dirt. The suction port assembly 10 also includes a suction port 13 through which the absorption channel 111 absorbs dirt. The suction port assembly 10 also includes a switching member 12. The switching member 12 is movably disposed relative to the channel member 11. The suction port assembly 10 also includes a drive mechanism 30. The drive mechanism 30 is drively connected to the switching member 12 and is used to drive the switching member 12 to move, causing the switching member 12 to switch between a first state and a second state.

[0041] When the switching component 12 is switched to the first state, the highest point of the suction port 13 has a first distance from the surface to be cleaned 20 (e.g., Figure 1b (as shown in D); when the switching component 12 is switched to the second state, the highest point of the suction port 13 has a second distance from the surface to be cleaned 20 (as shown in D); Figure 2 (as shown in d); where the first spacing is greater than the second spacing.

[0042] The switching component 12 is used to form the suction port 13. Figure 1b This demonstrates that the switching component 12 switches to the first state. Figure 2The switching member 12 is shown switching to the second state. When the switching member 12 is switched to the first state, the switching member 12 and the surface 20 to be cleaned have the first distance mentioned above; when the switching member 12 is switched to the second state, the switching member 12 and the surface 20 to be cleaned have the second distance mentioned above. In this embodiment, the channel member 11 and the switching member 12 cooperate to form the suction port 13. The end of the switching member 12 near the surface 20 to be cleaned is the first end 121, and the end of the second cover 113 near the surface 20 to be cleaned, as described below, is the second end 1131. When the first end 121 is far away from the surface 20 to be cleaned relative to the second end 1131, and when the first end 121 and the second end 1131 are flush, the first end 121 is the highest point of the suction port 13. When the first end 121 is close to the surface 20 to be cleaned relative to the second end 1131, the second end 1131 is the highest point of the suction port 13.

[0043] When the switching component 12 is switched to the first state, the distance between the switching component 12 and the surface 20 to be cleaned is relatively large, resulting in a larger distance between the highest point of the suction port 13 and the surface 20 to be cleaned. This increases the ventilation area of ​​the suction port 13 and improves the flow rate. Furthermore, because the switching component 12 is relatively far from the surface 20 to be cleaned, the interference between them is low. In this state, the suction port 13 can efficiently absorb solid dirt such as human or animal hair, fibers, and lint. When the switching component 12 is switched to the second state, the distance between the switching component 12 and the surface 20 to be cleaned is smaller. This reduces the ventilation area of ​​the suction port 13 and improves the vacuum level. The suction port 13 is closer to the surface 20 to be cleaned, allowing it to efficiently absorb liquid dirt such as sewage. In summary, this embodiment can balance the recovery efficiency of both liquid and solid dirt.

[0044] When the surface to be cleaned 20 is a carpet, the carpet surface easily accumulates solid dirt such as human or animal hair, fibers, and lint, and the carpet itself, due to its absorbency, easily stores liquid dirt such as sewage. The suction nozzle assembly 10 of this embodiment is particularly suitable for cleaning carpet surfaces. By driving the switching component 12 to switch between a first state and a second state, it balances the recovery efficiency of both liquid and solid dirt. Existing carpet cleaning equipment has a solid dirt recovery rate of only about 10%, while the suction nozzle assembly 10 of this embodiment can increase the solid dirt recovery rate to over 90% while simultaneously achieving efficient recovery of liquid dirt.

[0045] Specifically, the channel component 11 includes a first cover 112 and a second cover 113. The first cover 112 has an opening 1121, and the first cover 112 and the second cover 113 are connected to form an absorption channel 111. The opening 1121 is in fluid communication with the absorption channel 111, and a switching component 12 is movably disposed in the opening 1121. The switching component 12 and the second cover 113 cooperate to form a suction port 13.

[0046] When the switching component 12 is switched to the first state, the distance between the switching component 12 and the surface to be cleaned 20 is large, and the first end 121 is far away from the surface to be cleaned 20 relative to the second end 1131. At this time, the suction port 13 has a large flow rate due to its large ventilation area. At the same time, since the switching component 12 is relatively far away from the surface to be cleaned 20, the degree of interference between the two is low. Therefore, the suction port 13 can efficiently absorb solid dirt such as human or animal hair, fibers, and lint.

[0047] When the switching component 12 is switched to the second state, the distance between the switching component 12 and the surface to be cleaned 20 is small, and the first end 121 and the second end 1131 are flush. At this time, the suction port 13 has a large vacuum due to its small ventilation area. At the same time, the suction port 13 is close to the surface to be cleaned 20, so the suction port 13 can efficiently absorb liquid dirt such as sewage.

[0048] It should be noted that when the switching member 12 is switched to the second state, the first end 121 of the switching member 12 is flush with the second end 1131 of the second cover 113, but it is not required that the first end 121 and the second end 1131 be strictly flush. The cleaning device has a predetermined direction perpendicular to the surface 20 to be cleaned (e.g., Figure 1b As indicated by the middle arrow X (the same applies below), this embodiment allows a small distance between the first end 121 and the second end 1131 in a predetermined direction, which may not exceed 5 mm.

[0049] Furthermore, the first cover 112 also has a sealing surface 1122, which faces away from the absorption channel 111 and is adjacent to the opening 1121. The suction port assembly 10 also includes a sealing element 14, which is disposed on the switching member 12, specifically on the side of the switching member 12 facing the first cover 112. The sealing surface 1122 and the switching member 12 cooperate to clamp the sealing element 14, thereby sealing the gap between the sealing surface 1122 and the switching member 12, thus ensuring the vacuum degree of the absorption channel 111, and thus ensuring the efficiency and effectiveness of the absorption channel 111 in absorbing dirt.

[0050] Alternatively, the seal 14 may be made of elastic soft rubber or the like, and is not limited thereto.

[0051] Of course, in other embodiments of this application, the switching member 12 itself can surround and form the suction port 13. The switching member 12 switches between a first state and a second state, causing the suction port 13 to move along a direction perpendicular to the surface to be cleaned 20, thereby causing the distance between the highest point of the suction port 13 and the surface to be cleaned 20 to switch between a first distance and a second distance. Specifically, when the switching member 12 switches to the first state, the distance between the highest point of the suction port 13 and the surface to be cleaned 20 is larger, which helps to reduce the degree of interference between the suction port 13 and the surface to be cleaned 20. At this time, the suction port 13 can efficiently absorb solid dirt such as human or animal hair, fibers, and lint. When the switching member 12 switches to the second state, the distance between the highest point of the suction port 13 and the surface to be cleaned 20 is smaller, which helps to bring the suction port 13 closer to the surface to be cleaned 20. At this time, the suction port 13 can efficiently absorb liquid dirt such as sewage. The embodiments of this application use the cooperation of the channel member 11 and the switching member 12 to form the suction port 13 as an example for illustration only, and are not intended to limit the scope of the application.

[0052] Please refer to the following: Figures 4 to 8 , Figure 4 This is a structural schematic diagram of an embodiment of the switching component and drive mechanism of this application. Figure 5 yes Figure 4 The diagram shows the structure of region A in the switching component and drive mechanism. Figure 6 yes Figure 4 The diagram shown illustrates the structure of the switching component and the drive mechanism in another state. Figure 7 yes Figure 6 The diagram shows the structure of region B in the switching component and drive mechanism. Figure 8 This is a structural schematic diagram of an embodiment of the active component of this application. Wherein, Figure 4 This demonstrates that the switching component 12 switches to the first state. Figure 6 This demonstrates how switching component 12 switches to the second state.

[0053] The driving mechanism 30 of the present application embodiment will be described below.

[0054] In one embodiment, the drive mechanism 30 includes a fixing member 32. The fixing member 32 is fixed to the channel member 11. The fixing member 32 serves as the basic carrier of the drive mechanism 30, providing support and protection for other components of the drive mechanism 30. For example, the fixing member 32 can be fixed to the first cover 112 of the channel member 11 using fasteners such as screws, and the switching member 12 is movably disposed on the fixing member 32, thereby allowing the switching member 12 to be movable relative to the channel member 11.

[0055] The drive mechanism 30 also includes a movable member 33. The movable member 33 is movably disposed on the fixed member 32, and the movable member 33 and the switching member 12 can move synchronously. Specifically, the movable member 33 and the switching member 12 can move synchronously in a predetermined direction.

[0056] The drive mechanism 30 also includes a limiting member 34. The limiting member 34 is fixed to the fixing member 32. The limiting member 34 is used to restrict the position of the switching member 12 when the switching member 12 is switched to the first state or the second state, so that the switching member 12 is kept in the first state or the second state, thereby allowing the suction assembly 10 to perform the work of recycling solid or liquid dirt as required.

[0057] Specifically, the limiting member 34 has a first limiting portion 341 and a second limiting portion 342. The switching member 12 can move in a predetermined direction to switch between a first state and a second state, while the movable member 33 moves synchronously with the switching member 12. When the switching member 12 switches to the first state, the first limiting portion 341 restricts the switching member 12 to its current position via the movable member 33, so that the switching member 12 remains in the first state, and the suction assembly 10 performs the work of collecting solid dirt. When the switching member 12 switches to the second state, the second limiting portion 342 restricts the switching member 12 to its current position via the movable member 33, so that the switching member 12 remains in the second state, and the suction assembly 10 performs the work of collecting liquid dirt.

[0058] Of course, in other embodiments of this application, the switching member 12 is not limited to moving in a predetermined direction to switch between the first state and the second state. For example, the switching member 12 may be rotatably configured relative to the channel member 11 so that the switching member 12 can switch between the first state and the second state by driving the switching member 12 to rotate. This is not limited here.

[0059] Furthermore, the movable member 33 can also be rotatably disposed on the switching member 12, and the movable member 33 has a first mating part 331. The first limiting part 341 and the second limiting part 342 are distributed sequentially along the circumference of the limiting member 34. Specifically, the first limiting part 341 and the second limiting part 342 are both groove structures, and both the first limiting part 341 and the second limiting part 342 extend in a predetermined direction.

[0060] The movable member 33 rotates relative to the switching member 12, causing the first mating part 331 to rotate to the position corresponding to the first limiting part 341 or the second limiting part 342. Then, the movable member 33 moves along a predetermined direction, causing the first mating part 331 to engage with the first limiting part 341 or the second limiting part 342, thereby restricting the movable member 33 to its current position, and thus restricting the switching member 12 to its current position, keeping the switching member 12 in either the first or second state. Specifically, when the switching member 12 switches to the first state, the movable member 33 rotates until the first mating part 331 engages with the first limiting part 341; when the switching member 12 switches to the second state, the movable member 33 rotates until the first mating part 331 engages with the second limiting part 342. Of course, by moving the movable member 33 along the predetermined direction, the first mating part 331 disengages from the first limiting part 341 or the second limiting part 342, allowing the movable member 33 to rotate again, thus enabling the switching member 12 to switch between the first and second states.

[0061] For example, such as Figure 5 and Figure 7 As shown, the openings of the first limiting part 341 and the second limiting part 342 both face the surface to be cleaned 20, and the bottom of the first limiting part 341 is farther away from the surface to be cleaned 20 relative to the bottom of the second limiting part 342. When the first mating part 331 of the movable member 33 is inserted into the first limiting part 341 and abuts against the bottom of the first limiting part 341, the distance between the switching member 12 and the surface to be cleaned 20 is larger, that is, the switching member 12 switches to the first state. When the first mating part 331 of the movable member 33 is inserted into the second limiting part 342 and abuts against the bottom of the second limiting part 342, the distance between the switching member 12 and the surface to be cleaned 20 is smaller, that is, the switching member 12 switches to the second state.

[0062] And, as Figure 3 As shown, the switching member 12 has a protruding boss 122 on its surface, and a limiting post 123 is provided on the boss 122. The movable member 33 has a hollow structure and is rotatably fitted around the outer periphery of the limiting post 123. The movable member 33 and the switching member 12 move synchronously through the boss 122. The limiting post 123 can restrict the relative position between the movable member 33 and the switching member 12, while allowing the movable member 33 to rotate relative to the limiting post 123.

[0063] Of course, in other embodiments of this application, the first limiting part 341 and the second limiting part 342 are not limited to the design of the groove structure. For example, the first limiting part 341 and the second limiting part 342 can be magnetic components. The first limiting part 341 and the second limiting part 342 are spaced apart from each other along a predetermined direction. When the movable member 33 moves along the predetermined direction and cooperates with the first limiting part 341 for adsorption, the first limiting part 341 holds the switching member 12 in a first state through the movable member 33. When the movable member 33 moves along the predetermined direction and cooperates with the second limiting part 342 for adsorption, the second limiting part 342 holds the switching member 12 in a second state through the movable member 33. This is not limited here.

[0064] In one embodiment, the drive mechanism 30 further includes an enabling member 31. The enabling member 31 is drively connected to the switching member 12 and is operated by a user. By actively operating the enabling member 31, the user causes the enabling member 31 to drive the switching member 12 to switch between a first state and a second state.

[0065] According to actual cleaning needs, the user actively operates the enabling component 31 to drive the switching component 12 to switch between a first state and a second state. When the switching component 12 switches to the first state, the suction port assembly 10 is used to absorb solid dirt, while when the switching component 12 switches to the second state, the suction port assembly 10 is used to absorb liquid dirt.

[0066] Optionally, considering that the suction nozzle assembly 10 is relatively close to the surface to be cleaned 20, that is, the position of the suction nozzle assembly 10 is low, the enabling component 31 in this embodiment is specifically designed as a pedal. The user can trigger the enabling component 31 to drive the switching component 12 to switch between the first state and the second state by stepping on the enabling component 31. The user does not need to bend over to operate the enabling component 31, which helps to improve the convenience of the user to operate the enabling component 31.

[0067] Of course, in other embodiments of this application, the user actively controlling the enabling component 31 can also be understood as the user actively controlling the enabling component 31 to cooperate with the surface to be cleaned 20, thereby driving the switching component 12 to switch between the first state and the second state. For example, the user pushes the cleaning device forward to actively control the enabling component 31 to cooperate with the surface to be cleaned 20, thereby driving the switching component 12 to switch to the first state; while the user pulls the cleaning device backward to actively control the enabling component 31 to cooperate with the surface to be cleaned 20, thereby driving the switching component 12 to switch to the second state; of course, it is also possible that the user pushes the cleaning device forward to drive the switching component 12 to switch to the second state, and the user pulls the cleaning device backward to drive the switching component 12 to switch to the first state.

[0068] The drive mechanism 30 also includes an elastic element 35. The elastic element 35 is drively connected to the movable element 33. When the movable element 33 moves in a predetermined direction and causes the first mating part 331 to disengage from the first limiting part 341 or the second limiting part 342, the movable element 33 overcomes the elastic restoring force of the elastic element 35, causing the elastic element 35 to undergo elastic deformation. When the movable element 33 rotates to the position where the first mating part 331 corresponds to the first limiting part 341 or the second limiting part 342, in response to the elastic restoring force of the elastic element 35, the movable element 33 moves in a predetermined direction, causing the first mating part 331 to engage with its corresponding first limiting part 341 or second limiting part 342.

[0069] Specifically, the enabling member 31 is movably disposed on the fixed member 32, and the enabling member 31 is capable of moving in a predetermined direction. Specifically, the enabling member 31 is in a transmission engagement with the movable member 33, and the enabling member 31 moves in the predetermined direction to drive the movable member 33 to move. The elastic member 35 is specifically connected to the switching member 12, so that it is in a transmission engagement with the movable member 33 via the switching member 12.

[0070] Furthermore, at least one of the movable member 33 and the enabling member 31 has a ramp inclined relative to a predetermined direction. In response to the elastic restoring force of the elastic member 35, the ramp can guide the movable member 33 to rotate until the first mating portion 331 engages with the first limiting portion 341 or the second limiting portion 342. In other words, the ramp can guide the movable member 33 to rotate such that the first mating portion 331 rotates with the movable member 33 to the corresponding first limiting portion 341 or second limiting portion 342, and in response to the elastic restoring force of the elastic member 35, the movable member 33 moves in a predetermined direction such that the first mating portion 331 engages with its corresponding first limiting portion 341 or second limiting portion 342.

[0071] Optionally, such as Figure 3 , Figure 4 and Figure 6 As shown, the suction port assembly 10 also includes a fixing base 15. The fixing base 15 is fixed to the fixing member 32. One end of the elastic member 35 abuts against the fixing base 15, and the other end abuts against the switching member 12. The elastic member 35 can be a spring or the like, and the number of elastic members 35 can be one or more, which is not limited here.

[0072] In one embodiment, the aforementioned inclined surface includes a first mating inclined surface 331a and a driving inclined surface 312. The first mating inclined surface 331a is disposed on the first mating portion 331, and the driving inclined surface 312 is disposed on the enabling member 31. During the process of the switching member 12 switching from the first state to the second state, the enabling member 31 drives the movable member 33 to move, causing the first mating portion 331 to disengage from the first limiting portion 341. In response to the elastic restoring force of the elastic member 35, the first mating inclined surface 331a and the driving inclined surface 312 fit together and guide the movable member 33 to rotate until the first mating portion 331 is embedded in the second limiting portion 342.

[0073] Furthermore, the movable member 33 also has a second mating portion 332. The second mating portion 332 is adjacent to the first mating portion 331. The second mating portion 332 has a second mating inclined surface 332a, which is adjacent to the first mating inclined surface 331a and faces the first mating inclined surface 331a. The enabling member 31 also has a driving portion 311, which has a driving inclined surface 312 and a guiding inclined surface 313. The driving inclined surface 312 is adjacent to the guiding inclined surface 313, and the driving inclined surface 312 and the guiding inclined surface 313 are disposed opposite to each other. During the process of the first mating portion 331 being inserted into the second limiting portion 342, the second mating inclined surface 332a and the guiding inclined surface 313 are in contact with each other and guide the second mating portion 332 through the driving portion 311.

[0074] In one embodiment, the aforementioned inclined surface includes a third mating inclined surface 333a and a driving inclined surface 312. The third mating inclined surface 333a and the first mating portion 331 are sequentially distributed along the circumference of the movable member 33, and the driving inclined surface 312 is disposed on the enabling member 31. During the process of the switching member 12 switching from the second state to the first state, the enabling member 31 drives the movable member 33 to move, causing the first mating portion 331 to disengage from the second limiting portion 342. In response to the elastic restoring force of the elastic member 35, the third mating inclined surface 333a and the driving inclined surface 312 fit together and guide the movable member 33 to rotate until the first mating portion 331 is embedded in the first limiting portion 341.

[0075] Furthermore, the movable member 33 also has a third mating portion 333 and a fourth mating portion 334. The third mating portion 333 and the first mating portion 331 are spaced apart from each other in the circumferential direction of the movable member 33, wherein a third mating inclined surface 333a is provided on the third mating portion 333. The fourth mating portion 334 is adjacent to the third mating portion 333, and the fourth mating portion 334 has a fourth mating inclined surface 334a, which is adjacent to the third mating inclined surface 333a and faces the third mating inclined surface 333a. During the process of the first mating portion 331 being inserted into the first limiting portion 341, the fourth mating inclined surface 334a and the guide inclined surface 313 are in contact with each other and guide the fourth mating portion 334 through the driving portion 311.

[0076] In one embodiment, the groove wall of the second limiting part 342 has a guide groove wall 3421 and a limiting groove wall 3422. The guide groove wall 3421 is inclined relative to a predetermined direction, and the limiting groove wall 3422 is connected to the first limiting part 341 through the guide groove wall 3421. During the process of the first mating part 331 being inserted into the second limiting part 342, the first mating part 331 moves along the guide groove wall 3421 to abut against the limiting groove wall 3422. In this way, this embodiment guides the first mating part 331 to be inserted into the second limiting part 342 through the guide groove wall 3421, making the movement process of the moving part 33 smoother and reducing the risk of the moving part 33 getting stuck or jammed.

[0077] In one embodiment, the limiting member 34 further includes a transition slope 343. The transition slope 343 is located on the side of the first limiting portion 341 away from the second limiting portion 342. The transition slope 343 is inclined relative to a predetermined direction to guide the first mating portion 331 into the first limiting portion 341. In this way, this embodiment guides the first mating portion 331 into the first limiting portion 341 through the transition slope 343, making the movement of the movable member 33 smoother and reducing the risk of the movable member 33 getting stuck or jammed.

[0078] In one embodiment, the first limiting portion 341 has a groove bottom 3411, a first groove wall 3412, and a second groove wall 3413. The first groove wall 3412 is located on one side of the groove bottom 3411 in the circumferential direction of the limiting member 34, and the second groove wall 3413 is located on the other side of the groove bottom 3411 in the circumferential direction of the limiting member 34. The end of the first groove wall 3412 away from the groove bottom 3411 is closer to the groove bottom 3411 than the end of the second groove wall 3413 away from the groove bottom 3411. During the process of the first mating portion 331 engaging with the first limiting portion 341, the first mating portion 331 rotates with the movable member 33 to abut against the second groove wall 3413, and then engages with the first limiting portion 341 along the second groove wall 3413.

[0079] In one embodiment, the movable member 33 has at least two sets of mating part assemblies 335 arranged sequentially along its circumference, each mating part assembly 335 including a first mating part 331, a second mating part 332, a third mating part 333, and a fourth mating part 334. The limiting member 34 has at least two sets of limiting part assemblies 344 arranged sequentially along its circumference, each limiting part assembly 344 including a first limiting part 341 and a second limiting part 342. In response to the switching member 12 alternately switching between a first state and a second state, the movable member 33 rotates periodically, such that the first mating part 331 of each mating part assembly 335 periodically engages with the first limiting part 341 and the second limiting part 342 of each limiting part assembly 344.

[0080] Specifically, such as Figure 8As shown, the movable part 33 has four sets of mating parts assemblies 335, namely mating part assembly 335a, mating part assembly 335b, mating part assembly 335c, and mating part assembly 335d. The mating part assemblies 335a, 335b, 335c, and 335d are arranged clockwise. The first mating part 331, the second mating part 332, the third mating part 333, and the fourth mating part 334 of each mating part assembly 335 are arranged clockwise, and the first mating part 331 and the fourth mating part 334 of adjacent mating part assemblies 335 are adjacent to each other. Correspondingly, the limiting member 34 has four sets of limiting part assemblies 344.

[0081] The limiting member 34 has a hollow structure, and the movable member 33 can be embedded in the internal space of the limiting member 34. The first limiting part 341 and the second limiting part 342 are provided on the side wall of the limiting member 34. The outer wall surface of the first mating part 331 protrudes outward relative to the second mating part 332, the third mating part 333, and the fourth mating part 334, so that a portion of the first mating part 331 can be embedded in the first limiting part 341 and the second limiting part 342. Similarly, the driving part 311 of the enabling member 31 protrudes outward, so that a portion of the driving part 311 can be embedded in the first limiting part 341.

[0082] Taking the mating assembly 335a as an example. When the switching member 12 is in the first state, both the first mating part 331 and the driving part 311 are embedded in the first limiting part 341, and the first mating inclined surface 331a of the first mating part 331 abuts against the driving inclined surface 312 of the driving part 311. At this time, the movable part 33 is embedded in the limiting part 34, as shown. Figure 5 As shown. During the process of switching member 12 switching from the first state to the second state, the user manipulates the enabling member 31 to move towards the surface to be cleaned 20 in a predetermined direction. In response to the enabling member 31 moving towards the surface to be cleaned 20, the driving part 311 drives the movable member 33 to move synchronously towards the surface to be cleaned 20 through the first mating part 331. At this time, the switching member 12 moves towards the surface to be cleaned 20 and compresses the elastic member 35. Until the first mating part 331 just disengages from the first limiting part 341, the driving part 311 remains in the first limiting part 341. Since the first limiting part 341 no longer restricts the first mating part 331 at this time, in response to the elastic restoring force of the elastic member 35, the mutually mating first mating inclined surface 331a and the driving inclined surface 312 cooperate to guide the movable member 33 to rotate towards the second limiting part 342. When the movable member 33 rotates until the first mating part 331 is directly opposite the second limiting part 342, in response to the elastic restoring force of the elastic member 35, the movable member 33 moves in a predetermined direction away from the surface 20 to be cleaned, so that the first mating part 331 is engaged with the second limiting part 342 as the movable member 33 moves. Figure 7As shown. At this time, the enabling member 31 moves synchronously away from the surface to be cleaned 20 and protrudes outward again, so that the user can operate the enabling member 31 again. During the rotation of the movable member 33 toward the second limiting part 342, the second mating inclined surface 332a and the guiding inclined surface 313 fit together and guide the second mating part 332 through the driving part 311. Then, the driving inclined surface 312 of the driving part 311 fits with the third mating inclined surface 333a of the third mating part 333. At this point, the switching member 12 switches to the second state.

[0083] During the process of switching member 12 switching from the second state to the first state, the user continues to operate the enabling member 31, causing the enabling member 31 to move towards the surface to be cleaned 20 in a predetermined direction. In response to the enabling member 31 moving towards the surface to be cleaned 20, the driving part 311 drives the movable member 33 to move towards the surface to be cleaned 20 synchronously through the third mating part 333. At this time, the switching member 12 moves towards the surface to be cleaned 20 and compresses the elastic member 35. Until the first mating part 331 just disengages from the second limiting part 342, the first mating part 331 of the mating part assembly 335b also just disengages from the corresponding second limiting part 342. Since the first limiting part 341 no longer restricts the first mating part 331, in response to the elastic restoring force of the elastic member 35, the mutually mating third mating inclined surface 333a and the driving inclined surface 312 cooperate to guide the movable member 33 to rotate towards the second limiting part 342. When the movable member 33 rotates until the first mating part 331 of the mating part assembly 335b is directly opposite the first limiting part 341, in further response to the elastic restoring force of the elastic member 35, the movable member 33 moves in a predetermined direction away from the surface 20 to be cleaned, so that the first mating part 331 of the mating part assembly 335b is engaged with the first limiting part 341 as the movable member 33 moves. Figure 5 As shown. At this time, the enabling member 31 moves synchronously away from the surface to be cleaned 20 and protrudes outward again, so that the user can operate the enabling member 31 again. During the rotation of the movable member 33 toward the second limiting part 342, the fourth mating inclined surface 334a and the guiding inclined surface 313 fit together and guide the fourth mating part 334 through the driving part 311. Then, the driving inclined surface 312 of the driving part 311 fits with the first mating inclined surface 331a of the first mating part 331 of the mating part assembly 335b. At this point, the switching member 12 switches back to the first state. The process of switching the switching member 12 to the second state or the first state is repeated in the same way.

[0084] Of course, in other embodiments of this application, only one set of mating parts assembly 335 may be provided on the movable member 33. As the movable member 33 rotates periodically, the mating parts assembly 335 periodically engages with different limiting parts assembly 344, which is not limited here.

[0085] In one embodiment, the enabling member 31 has at least two driving portions 311. These at least two driving portions 311 are sequentially spaced apart along the circumference of the enabling member 31. In the case where the limiting member 34 has at least two sets of limiting portion combinations 344, each driving portion 311 is embedded in a different first limiting portion 341, thus restricting the rotation of the enabling member 31 to minimize the possibility that the driving portion 311 will fail to properly engage with the movable member 33 due to rotation of the enabling member 31.

[0086] For example, Figure 3 An exemplary embodiment is shown in which the enabling member 31 has two driving portions 311. The two driving portions 311 are located on opposite sides of the enabling member 31, and the two driving portions 311 are respectively embedded in the first limiting portion 341 of two opposing sets of limiting portion assemblies 344.

[0087] The technical solutions provided in the embodiments of this application will be described below in conjunction with specific application scenarios.

[0088] Application Scenario 1:

[0089] The cleaning device is specifically a carpet cleaning machine, used for cleaning carpets. The cleaning device includes a main body and a suction assembly 10, which is located within the main body. The suction assembly 10 includes a channel member 11, which has an absorption channel 111. The suction assembly 10 also includes a switching member 12, which is movably disposed relative to the channel member 11. The switching member 12 and the channel member 11 cooperate to form a suction port 13, through which the absorption channel 111 absorbs dirt. The suction assembly 10 also includes a drive mechanism 30, which is kinetically connected to the switching member 12. The drive mechanism 30 drives the switching member 12 to move, causing the switching member 12 to switch between a first state and a second state. The distance between the switching member 12 in the first state and the surface 20 to be cleaned is greater than the distance between the switching member 12 in the second state and the surface 20 to be cleaned.

[0090] The movable member 33 has at least two sets of mating parts 335 arranged sequentially along its circumference, each mating part 335 including a first mating part 331, a second mating part 332, a third mating part 333, and a fourth mating part 334. The limiting member 34 has at least two sets of limiting part assemblies 344 arranged sequentially along its circumference, each limiting part assembly 344 including a first limiting part 341 and a second limiting part 342. In response to the switching member 12 alternately switching between a first state and a second state, the movable member 33 rotates periodically, causing the first mating part 331 of each mating part assembly 335 to periodically engage with the first limiting part 341 and the second limiting part 342 of each limiting part assembly 344.

[0091] Taking the mating assembly 335a as an example. When the switching member 12 is in the first state, both the first mating part 331 and the driving part 311 are embedded in the first limiting part 341, and the first mating inclined surface 331a of the first mating part 331 abuts against the driving inclined surface 312 of the driving part 311. At this time, the movable part 33 is embedded in the limiting part 34. During the process of the switching member 12 switching from the first state to the second state, the user operates the enabling member 31 to move the enabling member 31 towards the surface to be cleaned 20 in a predetermined direction. In response to the enabling member 31 moving towards the surface to be cleaned 20, the driving part 311 drives the movable part 33 to move towards the surface to be cleaned 20 synchronously through the first mating part 331. At this time, the switching member 12 moves towards the surface to be cleaned 20 and compresses the elastic member 35. Until the first mating part 331 just disengages from the first limiting part 341, the driving part 311 remains within the first limiting part 341. Since the first limiting part 341 no longer restricts the first mating part 331, in response to the elastic restoring force of the elastic member 35, the mutually mating inclined surface 331a and the driving inclined surface 312 guide the movable part 33 to rotate toward the second limiting part 342. When the movable part 33 rotates until the first mating part 331 is directly opposite the second limiting part 342, in further response to the elastic restoring force of the elastic member 35, the movable part 33 moves in a predetermined direction away from the surface to be cleaned 20, causing the first mating part 331 to engage with the second limiting part 342 as the movable part 33 moves. At this time, the enabling member 31 simultaneously moves away from the surface to be cleaned 20 and protrudes outward again, so that the user can operate the enabling member 31 again. As the movable part 33 rotates toward the second limiting part 342, the second mating inclined surface 332a and the guiding inclined surface 313 come into contact with each other and guide the second mating part 332 through the driving part 311. Then, the driving inclined surface 312 of the driving part 311 comes into contact with the third mating inclined surface 333a of the third mating part 333. At this point, the switching member 12 switches to the second state.

[0092] During the process of switching member 12 switching from the second state to the first state, the user continues to operate the enabling member 31, causing the enabling member 31 to move towards the surface to be cleaned 20 in a predetermined direction. In response to the enabling member 31 moving towards the surface to be cleaned 20, the driving part 311 drives the movable member 33 to move towards the surface to be cleaned 20 synchronously through the third mating part 333. At this time, the switching member 12 moves towards the surface to be cleaned 20 and compresses the elastic member 35. Until the first mating part 331 just disengages from the second limiting part 342, the first mating part 331 of the mating part assembly 335b also just disengages from the corresponding second limiting part 342. Since the first limiting part 341 no longer restricts the first mating part 331, in response to the elastic restoring force of the elastic member 35, the mutually mating third mating inclined surface 333a and the driving inclined surface 312 cooperate to guide the movable member 33 to rotate towards the second limiting part 342. When the movable member 33 rotates until the first mating part 331 of the mating part assembly 335b is directly opposite the first limiting part 341, in response to the elastic restoring force of the elastic member 35, the movable member 33 moves in a predetermined direction away from the surface to be cleaned 20, causing the first mating part 331 of the mating part assembly 335b to engage with the first limiting part 341 as the movable member 33 moves. At this time, the enabling member 31 moves synchronously away from the surface to be cleaned 20 and protrudes outward again, so that the user can operate the enabling member 31 again. During the rotation of the movable member 33 toward the second limiting part 342, the fourth mating inclined surface 334a and the guiding inclined surface 313 fit together and guide the fourth mating part 334 through the driving part 311. Then, the driving inclined surface 312 of the driving part 311 fits together with the first mating inclined surface 331a of the first mating part 331 of the mating part assembly 335b. At this point, the switching member 12 switches back to the first state. The subsequent switching process of the switching member 12 to the second state or the first state is carried out in the same manner.

[0093] The cleaning device and its suction assembly provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A cleaning device, characterized in that, The cleaning device is used for cleaning a surface to be cleaned, and comprises: a device body; and a suction port assembly arranged on the device body; wherein the suction port assembly comprises: a channel member having a suction channel, wherein the channel member comprises a first cover body having an opening and a second cover body, and the first cover body and the second cover body are connected to form the suction channel, and the opening is in fluid communication with the suction channel; a suction port through which the suction channel sucks dirt; a switching member movably arranged relative to the channel member, the switching member being movably arranged on the opening, and the switching member and the second cover body cooperatively form the suction port; and a driving mechanism in transmission connection with the switching member, and the driving mechanism is used for driving the switching member to move so that the switching member is switched between a first state and a second state; wherein when the switching member is switched to the first state, a highest point of the suction port has a first distance from the surface to be cleaned, and when the switching member is switched to the second state, the highest point of the suction port has a second distance from the surface to be cleaned, and the first distance is greater than the second distance.

2. The cleaning device according to claim 1, wherein the switching member is used for forming the suction port; when the switching member is switched to the first state, the switching member has the first distance from the surface to be cleaned, and when the switching member is switched to the second state, the switching member has the second distance from the surface to be cleaned.

3. The cleaning device according to claim 1, wherein the driving mechanism comprises: an enabling member in transmission connection with the switching member and being controlled by a user; wherein the user actively controls the enabling member so that the enabling member drives the switching member to be switched between the first state and the second state.

4. The cleaning device according to claim 2, wherein the cleaning device has a predetermined direction perpendicular to the surface to be cleaned; the driving mechanism comprises: a fixing member fixed to the channel member; a movable member movably arranged on the fixing member in synchronization with the switching member; and a limiting member fixed to the fixing member, wherein the limiting member has a first limiting portion and a second limiting portion; wherein the switching member can be moved along the predetermined direction to be switched between the first state and the second state, and when the switching member is switched to the first state, the first limiting portion limits the switching member to a current position through the movable member, and when the switching member is switched to the second state, the second limiting portion limits the switching member to a current position through the movable member.

5. The cleaning device according to claim 4, wherein the movable member is further rotatably arranged on the switching member, and the movable member has a first matching portion; the first limiting portion and the second limiting portion are sequentially distributed along a circumferential direction of the limiting member, and the first limiting portion and the second limiting portion are both groove structures. When the switching member is switched to the first state, the movable piece rotates to the first fitting part being embedded in the first limiting part; when the switching member is switched to the second state, the movable piece rotates to the first fitting part being embedded in the second limiting part.

6. The cleaning device according to claim 5, wherein, The driving mechanism further comprises: an enabling member movably arranged on the fixed member, wherein the enabling member drives the movable piece to move by moving along the predetermined direction; and a resilient member in transmission connection with the movable piece; At least one of the movable piece and the enabling member has an inclined surface inclined relative to the predetermined direction; In response to the elastic restoring force of the resilient member, the inclined surface guides the movable piece to rotate to the first fitting part being embedded in the first limiting part or the second limiting part.

7. The cleaning device according to claim 6, wherein, The inclined surface comprises a first fitting inclined surface and a driving inclined surface, the first fitting inclined surface is arranged on the first fitting part, and the driving inclined surface is arranged on the enabling member; During the switching of the switching member from the first state to the second state, the enabling member drives the movable piece to move so that the first fitting part is separated from the first limiting part, and in response to the elastic restoring force of the resilient member, the first fitting inclined surface and the driving inclined surface are mutually abutted and cooperatively guide the movable piece to rotate to the first fitting part being embedded in the second limiting part.

8. The cleaning device according to claim 7, wherein, The movable piece further has: a second fitting part adjacent to the first fitting part, wherein the second fitting part has a second fitting inclined surface adjacent to the first fitting inclined surface and facing the first fitting inclined surface; The enabling member further has: a driving part provided with the driving inclined surface and a guide inclined surface, the driving inclined surface is adjacent to the guide inclined surface and they are oppositely arranged; During the embedding of the first fitting part in the second limiting part, the second fitting inclined surface and the guide inclined surface are mutually abutted and cooperatively guide the second fitting part to pass through the driving part.

9. The cleaning device according to claim 6, wherein, The inclined surface comprises a third fitting inclined surface and a driving inclined surface, the third fitting inclined surfaces are sequentially distributed along the circumference of the movable piece with the first fitting part, and the driving inclined surface is arranged on the enabling member; During the switching of the switching member from the second state to the first state, the enabling member drives the movable piece to move so that the first fitting part is separated from the second limiting part, and in response to the elastic restoring force of the resilient member, the third fitting inclined surface and the driving inclined surface are mutually abutted and cooperatively guide the movable piece to rotate to the first fitting part being embedded in the first limiting part.

10. The cleaning device according to claim 9, wherein, The movable piece further has: a third fitting part spaced from the first fitting part in the circumference of the movable piece, wherein the third fitting inclined surface is arranged on the third fitting part; and A fourth cooperating portion adjacent to the third cooperating portion, wherein the fourth cooperating portion has a fourth cooperating slope adjacent to and facing the third cooperating slope; The enabling member further has: A driving portion provided with the driving slope and the guiding slope, the driving slope being adjacent to the guiding slope and oppositely arranged; Wherein, during the embedding of the first cooperating portion into the first limiting portion, the fourth cooperating slope and the guiding slope are mutually fitted and cooperatively guide the fourth cooperating portion to pass through the driving portion.

11. The cleaning device according to claim 5, wherein The slot wall of the second limiting portion has a guiding slot wall and a limiting slot wall, the guiding slot wall being obliquely arranged relative to the predetermined direction, and the limiting slot wall being connected to the first limiting portion through the guiding slot wall; Wherein, during the embedding of the first cooperating portion into the second limiting portion, the first cooperating portion moves along the guiding slot wall to abut against the limiting slot wall.

12. The cleaning device according to claim 5, wherein The limiting member further has: A transition slope on a side of the first limiting portion away from the second limiting portion; Wherein, the transition slope is obliquely arranged relative to the predetermined direction, and is used to guide the embedding of the first cooperating portion into the first limiting portion.

13. The cleaning device according to claim 5, wherein The first limiting portion has: A slot bottom; A first slot wall on a side of the slot bottom in the circumferential direction of the limiting member; And A second slot wall on another side of the slot bottom in the circumferential direction of the limiting member; Wherein, the end of the first slot wall away from the slot bottom is closer to the slot bottom than the end of the second slot wall away from the slot bottom; during the embedding of the first cooperating portion into the first limiting portion, the first cooperating portion rotates with the movable member to abut against the second slot wall, and then embeds into the first limiting portion along the second slot wall.

14. The cleaning device according to any one of claims 5 to 13, wherein The movable member has at least two groups of cooperating portion combinations sequentially distributed along the circumferential direction thereof, each of the cooperating portion combinations comprising the first cooperating portion; The limiting member has at least two groups of limiting portion combinations sequentially distributed along the circumferential direction thereof, each of the limiting portion combinations comprising the first limiting portion and the second limiting portion; Wherein, in response to the switching member being alternately switched between the first state and the second state, the movable member is periodically rotated, so that the first cooperating portion of each of the cooperating portion combinations is periodically embedded into the first limiting portion and the second limiting portion of each of the limiting portion combinations.

15. A suction nozzle assembly for use in a cleaning device, characterized in that, The cleaning device is used for cleaning a to-be-cleaned surface, The suction port assembly comprises: A channel member having a suction channel, wherein the channel member comprises a first cover body having an opening and a second cover body, and the first cover body and the second cover body are in abutment to form the suction channel, and the opening is in fluid communication with the suction channel; A suction port, through which the suction channel sucks dirt. A switching member movably arranged relative to the channel member, the switching member movably arranged in the opening, the switching member cooperating with the second cover to form the suction port; and A driving mechanism in driving connection with the switching member, the driving mechanism configured to drive the switching member to move such that the switching member switches between a first state and a second state; wherein, when the switching member switches to the first state, the highest point of the suction port has a first distance from the surface to be cleaned, and when the switching member switches to the second state, the highest point of the suction port has a second distance from the surface to be cleaned, the first distance being greater than the second distance.

Images