Scraper strip assembly, cleaning apparatus and cleaning system

Abstract

Provided are a scraper strip assembly (1), a cleaning apparatus and a cleaning system. The scraper strip assembly (1) is configured to be mounted on a cleaning main machine (2); the scraper strip assembly (1) comprises: a scraper strip (11), the scraper strip (11) being configured to switch between a first state and a second state on the basis of a movement direction of the cleaning main machine (2) and a distance between the cleaning main machine (2) and an obstacle; and / or the scraper strip assembly comprises: a scraper strip (11) and a triggering member (16), the scraper strip (11) being configured to switch between a first state and a second state when the triggering member (16) is triggered. In the first state, there is a first distance (L1) between the bottom of the scraper strip (11) and a surface (3) to be cleaned; and in the second state, there is a second distance (L2) between the bottom of the scraper strip (11) and said surface (3). The first distance (L1) is greater than the second distance (L2).

Description

Scraper assemblies, cleaning equipment and cleaning systems

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202422485419.2, filed on October 14, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of cleaning equipment manufacturing technology, and more particularly to a scraper assembly, cleaning equipment, and cleaning system. Background Technology

[0004] In the field of cleaning equipment manufacturing technology, there is usually a lot of dirt residue such as dust and water stains near obstacles. However, existing cleaning equipment cannot effectively clean the dirt near obstacles, resulting in poor cleaning effect and poor user experience.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this disclosure is to provide a squeegee assembly, cleaning device, and cleaning system. This squeegee assembly, cleaning device, and cleaning system can accurately remove dirt, water stains, etc., located near obstacles, and can prevent the squeegee assembly from being accidentally deployed when the cleaning unit is not close to the obstacle, thus avoiding interference with the normal operation of the cleaning unit.

[0007] One aspect of this disclosure provides a scraper assembly configured to be mounted on a cleaning unit.

[0008] The scraper assembly includes: a distance sensor configured to detect the distance between the cleaning unit and the obstacle; a scraper configured to switch between a first state and a second state based on the motion state of the cleaning unit and the distance between the cleaning unit and the obstacle; and / or, the scraper assembly includes: a scraper and a trigger, the scraper configured to switch between a first state and a second state when the trigger is triggered;

[0009] In the first state, there is a first distance between the bottom of the scraper and the surface to be cleaned; in the second state, there is a second distance between the bottom of the scraper and the surface to be cleaned; the first distance is greater than the second distance.

[0010] In some embodiments of this disclosure, the scraper is mounted on the front end of the cleaning unit.

[0011] In some embodiments of this disclosure, the scraper is configured to switch to the first state when the cleaning unit moves in a first direction;

[0012] The scraper is configured to switch to the second state when the distance between the front end of the cleaning unit and the obstacle is less than or equal to a preset distance and the cleaning unit moves in a direction opposite to the first direction; and / or, the scraper is configured to switch to the second state when the cleaning unit stops moving.

[0013] Wherein, the first direction is the direction from the rear end of the cleaning host to the front end of the cleaning host.

[0014] In some embodiments of this disclosure, the cleaning host includes:

[0015] The cleaning work unit has the scraper installed at its front end.

[0016] In some embodiments of this disclosure, when the cleaning workpiece moves along the first direction, the scraper switches to the first state;

[0017] When the distance between the front end of the cleaning unit and the obstacle is less than or equal to a preset distance, and the cleaning unit moves in a direction opposite to the first direction, the scraper switches to the second state; and / or, when the cleaning unit stops moving, the scraper switches to the second state.

[0018] In some embodiments of this disclosure, the scraper assembly includes at least two scrapers, the at least two scrapers including a first scraper and a second scraper, the first scraper being configured to be mounted at the front end of the cleaning unit, and the second scraper being configured to be mounted at the rear end of the cleaning unit;

[0019] When the cleaning host moves in the first direction or in the opposite direction, both the first scraper and the second scraper switch to the first state.

[0020] When the distance between the front end of the cleaning unit and the obstacle is less than or equal to a preset distance, and the cleaning unit moves in a direction opposite to the first direction, the first scraper switches to the second state, and the second scraper switches to the first state.

[0021] When the distance between the rear end of the cleaning host and the obstacle is less than or equal to a preset distance, and the cleaning host moves along the first direction, the second scraper switches to the second state, and the first scraper switches to the first state;

[0022] When the cleaning body stops moving, the first scraper and / or the second scraper switch to the second state.

[0023] In some embodiments of this disclosure, the scraper is configured to switch between the first state and the second state when the trigger is actively triggered; and / or, the scraper is configured to switch between the first state and the second state when the trigger is passively triggered.

[0024] In some embodiments of this disclosure, the scraper assembly includes at least two scrapers, the at least two scrapers including a first scraper and a second scraper, the first scraper being configured to be mounted at the front end of the cleaning unit, and the second scraper being configured to be mounted at the rear end of the cleaning unit;

[0025] When the trigger is actively triggered, the first scraper and / or the second scraper switch between the first state and the second state;

[0026] And / or, when the trigger is passively triggered, the first scraper and / or the second scraper switch between the first state and the second state.

[0027] In some embodiments of this disclosure, the scraper is also configured to have a third state, wherein when the scraper switches to the third state, the bottom of the scraper rotates toward the cleaning work area.

[0028] In some embodiments of this disclosure, when the scraper is switched to the third state, the bottom of the scraper contacts the cleaning workpiece.

[0029] In some embodiments of this disclosure, the second distance is 0.

[0030] In some embodiments of this disclosure, the scraper assembly further includes:

[0031] A driving device is in contact with or connected to the scraper to drive the scraper to switch between the first state and the second state.

[0032] In some embodiments of this disclosure, the driving device includes:

[0033] Drive components;

[0034] A state switching element is connected to the drive element, and the state switching element is configured to switch the scraper between a first state and a second state.

[0035] In some embodiments of this disclosure, the scraper assembly further includes a support housing, and the drive member is mounted on the support housing.

[0036] In some embodiments of this disclosure, the scraper includes a rotating shaft, and the scraper is rotatably connected to the support shell via the rotating shaft;

[0037] The state switching component can rotate the scraper to switch the scraper between the first state and the second state.

[0038] In some embodiments of this disclosure, the state switching element includes:

[0039] A first state switcher is configured to restore the scraper to a first state;

[0040] A second state switcher is connected to the drive unit and is configured to switch the scraper to a second state.

[0041] In some embodiments of this disclosure, the second state switching element includes:

[0042] A drive arm is provided, one end of which is connected to the drive component, and the drive arm can push the scraper to rotate under the drive of the drive component, so as to switch the scraper to the second state.

[0043] In some embodiments of this disclosure, the scraper includes:

[0044] The cam is driven by the drive arm to switch the scraper to the second state.

[0045] In some embodiments of this disclosure, the drive arm remains in contact with the cam at all times.

[0046] In some embodiments of this disclosure, the first state switching element includes:

[0047] An elastic element is provided, which is connected to both the support shell and the scraper; when the scraper is in the second state, the elastic element has a restoring force.

[0048] In some embodiments of this disclosure, the elastic element includes:

[0049] A tension spring, one end of which is connected to the support shell and the other end of which is connected to the scraper.

[0050] In some embodiments of this disclosure, the elastic element includes:

[0051] A torsion spring is sleeved on the rotating shaft and connected to the scraper.

[0052] In some embodiments of this disclosure, the state switching element includes:

[0053] The drive wheel is rotatably connected to the drive component;

[0054] A driven wheel is mounted on the rotating shaft and contacts the driving wheel to rotate under the drive of the driving wheel.

[0055] In some embodiments of this disclosure, both the driving wheel and the driven wheel are gears, and the driving wheel and the driven wheel mesh.

[0056] In some embodiments of this disclosure, the state switching element includes:

[0057] A pull rod, one end of which is connected to the drive component and the other end of which is connected to the scraper, to pull the scraper to switch between the first state and the second state.

[0058] In some embodiments of this disclosure, the driving device is a lifting device to drive the scraper to move in a direction away from or close to the surface to be cleaned, so that the scraper switches between the first state and the second state.

[0059] In some embodiments of this disclosure, the support shell includes:

[0060] First shell;

[0061] The second housing is connected to the first housing and extends away from the first housing;

[0062] The driving component is disposed on the side of the first housing close to the second housing, and the scraper is rotatably mounted on the side of the first housing opposite to the second housing.

[0063] In some embodiments of this disclosure, the first housing is provided with a first through hole; at least a portion of the driving device passes through the first through hole to contact or connect with the scraper; or, at least a portion of the scraper passes through the first through hole to contact or connect with the driving device.

[0064] In some embodiments of this disclosure, the scraper is further configured to have a third state; the driving device is capable of driving the scraper to switch between the first state, the second state, and the third state.

[0065] In some embodiments of this disclosure, the scraper assembly further includes:

[0066] A distance sensor is configured to detect the distance between the cleaning unit and the obstacle.

[0067] In some embodiments of this disclosure, the distance sensor is mounted at the foremost end of the cleaning unit.

[0068] In some embodiments of this disclosure, the preset distance is greater than or equal to 0 mm and less than or equal to 2 mm.

[0069] Another aspect of this disclosure provides a cleaning device, comprising:

[0070] Clean the main unit;

[0071] A scraper assembly, wherein the scraper assembly is any one of the scraper assemblies described above, and the scraper assembly is installed on the cleaning host.

[0072] Another aspect of this disclosure provides a cleaning system, comprising:

[0073] Base station;

[0074] The cleaning equipment is the cleaning equipment described above, and the cleaning equipment is capable of interfacing with the base station.

[0075] In some embodiments of this disclosure, when the cleaning device is connected to the base station, the scraper switches to a third state.

[0076] The technical solution provided in this disclosure can achieve the following beneficial effects:

[0077] The scraper assembly provided in this disclosure can be configured and installed on a cleaning host, and the scraper in the scraper assembly can switch between a first state and a second state according to the movement state of the cleaning host and the distance between the cleaning host and the obstacle.

[0078] With this configuration, the present invention can accurately determine whether it is necessary to clean the area near the obstacle based on the movement direction of the cleaning host and the distance between the cleaning host and the obstacle. After determining that it is necessary to clean the area near the obstacle, the scraper is precisely switched to the second state, so that the scraper is closer to the surface to be cleaned, thereby removing dirt, water stains, etc. located near the obstacle.

[0079] Furthermore, after determining that cleaning near the obstacle is not currently required, the squeegee can be kept in the first state or switched from the second state to the first state, so that the distance between the squeegee and the surface to be cleaned is greater, thereby preventing the squeegee from being accidentally lowered when the cleaning unit is not close to the obstacle, which would affect the normal operation of the cleaning unit.

[0080] And / or, the scraper assembly may include: a scraper and a trigger, wherein when the trigger is activated, the scraper can switch between a first state and a second state.

[0081] This setup allows for switching the scraper's state as needed. When cleaning dirt or water stains on the surface requires activation, the trigger can be activated to switch the scraper to its second state for cleaning. When cleaning is not needed, the trigger can be activated to switch the scraper back to its first state for cleaning the main unit.

[0082] 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

[0083] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0084] Figure 1 shows a schematic diagram of the structure when the first scraper is in a first state according to some embodiments of the present disclosure;

[0085] Figure 2 shows a schematic diagram of the structure when the first scraper is in the second state according to some embodiments of the present disclosure;

[0086] Figure 3 shows a schematic diagram of the structure when the first scraper is in a third state according to some embodiments of the present disclosure;

[0087] Figure 4 shows a schematic diagram of the structure when both the first and second scrapers are in the first state according to some embodiments of the present disclosure;

[0088] Figure 5 shows a schematic diagram of the structure when the first scraper is in a first state and the second scraper is in a second state according to some embodiments of the present disclosure;

[0089] Figure 6 shows a schematic diagram of the structure when the first scraper is in a first state according to some embodiments of the present disclosure;

[0090] Figure 7 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure;

[0091] Figure 8 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure;

[0092] Figure 9 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure;

[0093] Figure 10 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure;

[0094] Figure 11 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure;

[0095] Figure 12 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure;

[0096] Figure 13 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure;

[0097] Figure 14 shows a schematic diagram of the structure of a scraper assembly according to some embodiments of the present disclosure.

[0098] Figure 15 shows a schematic diagram of a cleaning system according to some embodiments of the present disclosure.

[0099] Explanation of reference numerals in the attached drawings: 1. Scraper assembly; 11. Scraper; 111. Cam; 112. Connecting part; 113. First scraper; 114. Second scraper; 12. Drive device; 121. Drive component; 122. State switching component; 123. Drive swing arm; 124. Tension spring; 125. Torsion spring; 126. Drive wheel; 127. Driven wheel; 13. Support shell; 131. First shell; 132. Second shell; 133. First through hole; 134. Second through hole; 14. Distance sensor; 15. Rotating shaft; 16. Trigger; 2. Cleaning host; 21. Cleaning working part; 3. Surface to be cleaned; X, First direction; L1, First distance; L2, Second distance; O1, Cleaning equipment; O2, Base station; O3, Cleaning system. Detailed Implementation

[0100] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0101] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0102] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion meaning and that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first” and “second” are used only as markers and are not a limitation on the number of objects.

[0103] As shown in Figures 1 to 14, this disclosure first provides a scraper assembly 1. The scraper assembly 1 can be configured to be installed on a cleaning host 2. The cleaning host 2 may include, but is not limited to, a floor scrubber host, a sweeping robot host, or a robotic vacuum cleaner host.

[0104] The scraper assembly 1 provided in this disclosure may include a scraper 11. The scraper 11 can be configured to switch between a first state and a second state based on the movement state of the cleaning host 2 and the distance between the cleaning host 2 and an obstacle. In the first state, there may be a first distance L1 between the bottom of the scraper 11 and the surface 3 to be cleaned; in the second state, there may be a second distance L2 between the bottom of the scraper 11 and the surface 3 to be cleaned. The first distance L1 may be greater than the second distance L2. That is, it can be understood that when the scraper 11 switches to the first state, the scraper 11 is raised; when the scraper 11 switches to the second state, the scraper 11 is lowered.

[0105] With this configuration, the present invention can accurately determine whether it is necessary to clean the area near the obstacle based on the movement direction of the cleaning host 2 and the distance between the cleaning host 2 and the obstacle. After determining that it is necessary to clean the area near the obstacle, the scraper 11 is precisely switched to the second state, so that the scraper 11 is closer to the surface 3 to be cleaned, thereby removing dirt, water stains, etc. located near the obstacle.

[0106] Furthermore, after determining that cleaning near the obstacle is not necessary, the squeegee 11 can be kept in the first state or switched from the second state to the first state, so that the distance between the squeegee 11 and the surface 3 to be cleaned is greater, thereby preventing the squeegee 11 from being accidentally lowered when the cleaning host 2 is not close to the obstacle, which would affect the normal operation of the cleaning host 2.

[0107] And / or, the scraper assembly 1 may include a scraper 11 and a trigger 16, wherein the scraper 11 may be configured to switch between a first state and a second state when the trigger 16 is triggered.

[0108] This configuration allows the scraper 11 to switch states as needed. When cleaning dirt or water stains on the surface 3 requires intervention, trigger 16 can be activated to switch the scraper 11 to its second state, enabling cleaning. When cleaning is not required, trigger 16 can be activated to switch the scraper 11 to its first state, facilitating cleaning operations on the main unit 2.

[0109] It should be noted that the above technical solution includes three schemes: The first scheme: the scraper 11 is configured to switch between a first state and a second state based on the movement direction of the cleaning host 2 and the distance between the cleaning host 2 and the obstacle. The second scheme: the scraper assembly 1 includes a scraper 11 and a trigger 16, and the scraper 11 is configured to switch between a first state and a second state when the trigger 16 is triggered. The third scheme: the scraper assembly 1 includes a scraper 11 and a trigger 16, and the scraper 11 is configured to switch between a first state and a second state based on the movement direction of the cleaning host 2 and the distance between the cleaning host 2 and the obstacle, and the scraper 11 is also configured to switch between a first state and a second state when the trigger 16 is triggered.

[0110] Furthermore, the technical effects of the first and second schemes can be referred to the corresponding descriptions above, and the technical effect of the third scheme can be the sum of the technical effects of the first and second schemes.

[0111] In some embodiments, the second distance L2 can be 0. With this configuration, when the scraper 11 switches to the second state, the bottom of the scraper 11 can be made to fit against the surface 3 to be cleaned, thereby preventing some dirt or water stains from leaking out from the gap between the bottom of the scraper 11 and the surface 3 to be cleaned, thus improving the cleaning effect of the scraper 11.

[0112] In some embodiments of this disclosure, the scraper 11 may be mounted on the front end of the cleaning unit 2. The scraper 11 may be configured to switch to a first state when the cleaning unit 2 moves in the first direction X.

[0113] With this configuration, when the cleaning unit 2 moves along the first direction X, the cleaning unit 2 will perform cleaning without the need for the scraper 11. Switching the scraper 11 to the first state at this time can prevent the scraper 11 from obstructing the cleaning work of the cleaning unit 2, and can also prevent the scraper 11 from hindering the movement of the cleaning unit 2, thus ensuring the smooth movement of the cleaning unit 2.

[0114] The scraper 11 can be configured to switch to a second state when the distance between the front end of the cleaning unit 2 and the obstacle is less than or equal to a preset distance, and when the cleaning unit 2 moves in a direction opposite to the first direction X. Here, the first direction X is the direction from the rear end of the cleaning unit 2 to the front end of the cleaning unit 2.

[0115] When the distance between the front end of the cleaning unit 2 and the obstacle is less than or equal to a preset distance, it can be determined that the cleaning unit 2 is near the obstacle. Furthermore, if the cleaning unit 2 moves in the opposite direction to the first direction X, it can be considered that the cleaning work near the obstacle is complete. However, since there may be cleaning blind spots near the obstacle, the cleaning unit 2 may be unable to clean these blind spots. In this case, the scraper 11 can be switched to a second state, allowing it to clean dirt, water stains, etc., in the blind spots, thereby improving the cleaning effect.

[0116] The scraper 11 can be configured to switch to a second state when the cleaning unit 2 stops moving. This setting allows the scraper 11 to be lowered when the cleaning unit 2 stops moving, preventing the scraper 11 from remaining in the raised state and thus extending its service life.

[0117] The scraper 11 can be configured to switch to a second state when the distance between the front end of the cleaning unit 2 and the obstacle is less than or equal to a preset distance, and when the cleaning unit 2 moves in the opposite direction to the first direction X; and the scraper 11 can also be configured to switch to the second state when the cleaning unit 2 stops moving. This configuration not only allows the scraper 11 to clean dirt and water stains in hard-to-reach areas, improving cleaning effectiveness, but also prevents the scraper 11 from being constantly raised, thus extending its service life.

[0118] In some embodiments, the cleaning unit 2 may include a cleaning work section 21. The cleaning work section 21 may be a roller brush, side brush, etc. A scraper 11 may be configured to be mounted on the front end of the cleaning work section 21.

[0119] In this embodiment, the scraper 11 is positioned at the front end of the cleaning work section 21, which allows the scraper 11 to be closer to the cleaning work section 21. As a result, the dirt or water stains scraped off by the scraper 11 can accumulate near the cleaning work section 21, making it easier for the cleaning work section 21 to remove the dirt or water stains scraped off by the scraper 11.

[0120] When the cleaning unit 21 moves along the first direction X, the scraper 11 switches to the first state. When the distance between the front end of the cleaning unit 21 and the obstacle is less than or equal to a preset distance, and the cleaning unit 21 moves in the opposite direction to the first direction X, the scraper 11 switches to the second state.

[0121] With this configuration, since the cleaning unit 21 is responsible for cleaning within the cleaning unit 2, when the distance between the front end of the cleaning unit 21 and an obstacle is less than or equal to a preset distance, the cleaning dead zones of the cleaning unit 2 can be more accurately determined. Therefore, using the distance between the front end of the cleaning unit 21 and the obstacle for judgment can improve the accuracy of the scraper 11's state switching, thereby further improving the cleaning effect.

[0122] When the cleaning unit 21 stops moving, the scraper 11 can switch to the second state. This setting allows the scraper 11 to be lowered when the cleaning unit 21 stops moving, preventing the scraper 11 from being in a raised state and thus extending its service life.

[0123] When the distance between the front end of the cleaning unit 21 and the obstacle is less than or equal to a preset distance, and the cleaning unit 21 moves in a direction opposite to the first direction X, the scraper 11 switches to the second state. The scraper 11 can also switch to the second state when the cleaning unit 21 stops moving. This configuration not only improves the accuracy of the scraper 11's state switching, thereby further improving the cleaning effect, but also extends the service life of the scraper 11.

[0124] In some embodiments of this disclosure, as shown in Figures 4, 5, and 7 to 14, the scraper assembly 1 may include at least two scrapers 11. The at least two scrapers 11 may include a first scraper 113 and a second scraper 114. The first scraper 113 may be configured to be mounted at the front end of the cleaning unit 2, and the second scraper 114 may be configured to be mounted at the rear end of the cleaning unit 2.

[0125] When the cleaning host 2 moves along the first direction X or in the opposite direction to the first direction X, the first scraper 113 and the second scraper 114 are both switched to the first state. At this time, the first scraper 113 and the second scraper 114 can be prevented from obstructing the cleaning work of the cleaning host 2, and the first scraper 113 and the second scraper 114 can also be prevented from obstructing the movement of the cleaning host 2, thus ensuring the smooth movement of the cleaning host 2.

[0126] When the distance between the front end of the cleaning unit 2 and the obstacle is less than or equal to a preset distance, and the cleaning unit 2 moves in a direction opposite to the first direction X, the first scraper 113 can switch to the second state, and the second scraper 114 can switch to the first state. This configuration allows the first scraper 113 to clean the hard-to-reach areas at the front end of the cleaning unit 2, and also avoids the second scraper 114 affecting the movement of the cleaning unit 2.

[0127] When the distance between the rear end of the cleaning unit 2 and the obstacle is less than or equal to a preset distance, and the cleaning unit 2 moves along the first direction X, the second scraper 114 can switch to the second state, and the first scraper 113 can switch to the first state. This configuration allows the second scraper 114 to clean the hard-to-reach areas at the rear end of the cleaning unit 2, while also preventing the first scraper 113 from affecting the movement of the cleaning unit 2.

[0128] Therefore, by setting the first scraper 113 and the second scraper 114, the front and rear cleaning dead corners of the cleaning host 2 can be cleaned, thereby further improving the cleaning effect.

[0129] When the cleaning unit 2 stops moving, the first scraper 113 and / or the second scraper 114 switches to the second state. This setting allows the first scraper 113 and / or the second scraper 114 to be lowered when the cleaning unit 2 stops moving, preventing the first scraper 113 and / or the second scraper 114 from being in a raised state, thereby improving the service life of the first scraper 113 and / or the second scraper 114.

[0130] In some embodiments, the first scraper 113 may be configured to be mounted at the front end of the cleaning work section 21, and the second scraper 114 may be configured to be mounted at the rear end of the cleaning work section 21.

[0131] When the cleaning unit 21 moves along the first direction X or in the opposite direction to the first direction X, the first scraper 113 and the second scraper 114 are both switched to the first state. At this time, the first scraper 113 and the second scraper 114 can avoid obstructing the cleaning work of the cleaning unit 21, and can also avoid obstructing the movement of the cleaning unit 21, thus ensuring the smoothness of the movement of the cleaning unit 21.

[0132] When the distance between the front end of the cleaning unit 21 and the obstacle is less than or equal to a preset distance, and the cleaning unit 21 moves in a direction opposite to the first direction X, the first scraper 113 can switch to the second state, and the second scraper 114 can switch to the first state. This configuration allows the first scraper 113 to clean the hard-to-reach areas at the front end of the cleaning unit 21, and also avoids the second scraper 114 affecting the movement of the cleaning unit 21.

[0133] When the distance between the rear end of the cleaning unit 21 and the obstacle is less than or equal to a preset distance, and the cleaning unit 21 moves along the first direction X, the second scraper 114 can switch to the second state, and the first scraper 113 can switch to the first state. This configuration allows the second scraper 114 to clean the hard-to-reach areas at the rear end of the cleaning unit 21, and also avoids the first scraper 113 affecting the movement of the cleaning unit 21.

[0134] When the cleaning unit 21 stops moving, the first scraper 113 and / or the second scraper 114 switch to the second state. This configuration allows the first scraper 113 and / or the second scraper 114 to be lowered when the cleaning unit 21 stops moving, preventing the first scraper 113 and / or the second scraper 114 from being in a raised state, thereby improving the service life of the first scraper 113 and / or the second scraper 114.

[0135] In some embodiments of this disclosure, the preset distance can be greater than or equal to 0 mm and less than or equal to 2 mm, for example: 0 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, etc. This setting allows the scraper 11 to be closer to the obstacle, improving its cleaning effect; simultaneously, it also prevents the scraper 11 from being lowered too far from the obstacle, thus affecting the normal operation of the cleaning unit 21. However, this is not limited to this; the preset distance can also be other distances, which can be set according to actual needs, all of which are within the protection scope of this disclosure.

[0136] In some embodiments of this disclosure, as shown in FIG6, the scraper 11 can be configured to switch between a first state and a second state when the trigger 16 is actively triggered. For example, when the front end of the cleaning unit 2 approaches an obstacle, the operator can actively trigger the trigger 16 to switch the scraper 11 from the first state to the second state to clean dirt, water stains, etc., near the obstacle. After the scraper 11 has finished cleaning the dirt, water stains, etc., near the obstacle, the operator can actively trigger the trigger 16 to switch the scraper from the second state back to the first state. This configuration can improve the operator's operational autonomy, allowing the operator to switch the state of the scraper 11 arbitrarily according to their needs.

[0137] The scraper 11 can be configured to switch between a first state and a second state when the trigger 16 is passively triggered. For example, when the front end of the cleaning unit 2 approaches an obstacle, the trigger 16 may collide with the obstacle. In this case, the trigger 16 is triggered by the obstacle, and the scraper 11 can automatically switch from the first state to the second state to clean dirt, water stains, etc., near the obstacle. After the scraper 11 has finished cleaning the dirt, water stains, etc., near the obstacle, the trigger 16 moves away from the obstacle, and the scraper 11 can automatically switch from the second state back to the first state. This configuration ensures that the scraper 11 is only lowered when the cleaning unit 2 approaches an obstacle.

[0138] In some embodiments, the scraper 11 can be configured to switch between a first state and a second state when the trigger 16 is actively triggered, and to switch between a first state and a second state when the trigger 16 is passively triggered. This configuration improves the operator's autonomy, allowing the operator to switch the state of the scraper 11 arbitrarily according to their needs, and ensures that the scraper 11 is only lowered when the cleaning host 2 approaches an obstacle.

[0139] In some embodiments of this disclosure, when the trigger 16 is actively triggered, the first scraper 113 and / or the second scraper 114 can switch between a first state and a second state. This configuration can further improve the operator's autonomy, allowing the operator to switch the state of the first scraper 113 and / or the second scraper 114 arbitrarily according to their needs.

[0140] When the trigger 16 is passively triggered, the first scraper 113 and / or the second scraper 114 can switch between a first state and a second state. This configuration ensures that the first scraper 113 and / or the second scraper 114 are only lowered when the cleaning unit 2 approaches an obstacle.

[0141] In some embodiments, when the trigger 16 is actively or passively triggered, the first scraper 113 and / or the second scraper 114 can switch between a first state and a second state. This configuration further enhances the operator's autonomy, allowing them to switch the states of the first scraper 113 and / or the second scraper 114 arbitrarily according to their needs, and ensuring that the first scraper 113 and / or the second scraper 114 are only lowered when the cleaning host 2 approaches an obstacle. In some embodiments, the trigger 16 can be a separately configured trigger block, etc., but is not limited to this; the trigger 16 can also be other triggering structures, which can be selected and configured according to actual conditions.

[0142] As shown in Figures 7 to 14, the scraper assembly 1 may further include a drive device 12. The drive device 12 may contact or connect with the scraper 11 to drive the scraper 11 to switch between a first state and a second state.

[0143] In some embodiments, the drive device 12 may include a drive element 121 and a state switching element 122. The drive element 121 may be a motor or the like. The state switching element 122 may be connected to the drive element 121 and may be configured to switch the scraper blade 11 between a first state and a second state.

[0144] The aforementioned scraper assembly 1 may further include a support housing 13. The drive component 121 can be mounted on the support housing 13, thereby improving the stability of the drive component 121 installation.

[0145] In some embodiments, the trigger 16 may not be a trigger block, but may be a support shell 13. This configuration eliminates the need for an additional trigger structure within the scraper assembly 1, thereby reducing manufacturing costs.

[0146] The scraper blade 11 may include a rotating shaft 15, and the scraper blade 11 can be rotatably connected to the support housing 13 via the rotating shaft 15. The aforementioned state switching member 122 can rotate the scraper blade 11 to switch the scraper blade 11 between a first state and a second state. That is, the aforementioned state switching member 122 can rotate the scraper blade 11 under the drive of the drive member 121.

[0147] In some embodiments, the state switching element 122 may include a first state switching element and a second state switching element. The first state switching element may be configured to restore the scraper 11 to a first state. The second state switching element may be configured to restore the scraper 11 to a second state.

[0148] As shown in Figures 7 to 9 and Figures 11 to 13, the second state switching component may include a drive arm 123. One end of the drive arm 123 can be connected to the drive component 121, and the drive arm 123 can push the scraper 11 to rotate under the drive of the drive component 121, thereby switching the scraper 11 to the second state. That is, it can be understood that one end of the drive arm 123 can be connected to the drive component 121, and it can rotate under the drive of the drive component 121, so that it can contact the scraper 11 during the rotation, thereby pushing the scraper 11 to rotate, thus switching the scraper 11 to the second state. With this configuration, it is not necessary to connect the second state switching component to the scraper 11; it is only necessary for the drive arm 123 to contact the scraper 11 during rotation. This eliminates the need for connecting the second state switching component and the scraper 11, and also avoids the problem of breakage at the connection between the second state switching component and the scraper 11, thus improving the service life of the scraper assembly 1.

[0149] The scraper 11 may further include a cam 111. The drive arm 123 can push the cam 111 to switch the scraper 11 to a second state. By setting the cam 111, this disclosure facilitates the drive arm 123 to push the scraper 11 during rotation, making the rotation of the scraper 11 more stable.

[0150] The cam 111 can be a segmented cam 111. This configuration reduces the space occupied by the drive arm 123 and the cam 111, thereby enabling miniaturization of the scraper assembly 1 and providing more space for other components of the cleaning equipment. However, it is not limited to this; the cam 111 may not be a segmented cam 111, and can be configured according to actual conditions, all of which are within the scope of protection of this disclosure.

[0151] In some embodiments, the drive arm 123 and the cam 111 can always remain in contact. This configuration improves the stability of the scraper blade 11's rotation. Furthermore, this configuration allows the drive arm 123 to consistently apply a stopping force to the cam 111, ensuring that the scraper blade 11 does not shift position after switching to the correct position. This guarantees that the scraper blade 11 remains stable during operation, thereby improving its cleaning effect.

[0152] In some embodiments, the support shell 13 may include a first shell 131 and a second shell 132. The second shell 132 may be connected to the first shell 131, and the second shell 132 may extend away from the first shell 131. The aforementioned drive member 121 may be mounted on the side of the first shell 131 near the second shell 132. The scraper 11 may be rotatably mounted on the side of the first shell 131 opposite to the second shell 132. Thus, this disclosure mounts the drive member 121 and the scraper 11 on opposite sides of the first shell 131, which facilitates the drive member 121 driving the scraper 11. However, this is not a limitation; the drive member 121 may also be mounted on the second shell 132, depending on the actual situation.

[0153] The first housing 131 may be provided with a first through hole 133, and at least part of the driving device 12 may pass through the first through hole 133 to contact or connect with the scraper 11. For example, part of the state switching component 122 may pass through the first through hole 133 to contact or connect with the scraper 11.

[0154] Alternatively, at least part of the scraper 11 can pass through the first through hole 133 to contact or connect with the drive device 12. For example, part of the cam 111 can pass through the first through hole 133 to contact the drive arm 123.

[0155] In some embodiments of this disclosure, the first state switching element may include an elastic element. The elastic element may be connected to both the support shell 13 and the scraper blade 11. Furthermore, when the scraper blade 11 is in the second state, the elastic element may possess a restoring force. Therefore, when the scraper blade 11 needs to switch from the second state to the first state, the restoring force within the elastic element can be directly utilized to quickly restore the scraper blade 11 to the first state, eliminating the need for the drive element 121, thereby saving on the production and usage costs of the scraper blade assembly 1. Simultaneously, because the restoring process of the elastic element is relatively fast, the speed at which the scraper blade 11 switches to the first state can be increased.

[0156] In some embodiments, as shown in Figures 7, 8, 11, and 12, the elastic element may include a tension spring 124. One end of the tension spring 124 may be connected to the support housing 13, and the other end may be connected to the scraper 11. For example, one end of the tension spring 124 may be connected to the second housing 132.

[0157] The elastic element may include at least two tension springs 124, which may be connected to both ends of the scraper 11 respectively, so as to ensure that both ends of the scraper 11 can be subjected to force when switching states, thereby ensuring its stability when switching states.

[0158] In some embodiments, the first housing 131 may also be provided with a second through hole 134, and the scraper 11 may also include a connecting portion 112. The tension spring 124 may be connected to the connecting portion 112, and when the scraper 11 is switched to the first state, a portion of the connecting portion 112 may pass through the second through hole 134. This arrangement facilitates the connection between the tension spring 124 and the connecting portion 112 and improves the connection stability between the tension spring 124 and the connecting portion 112.

[0159] In some embodiments, as shown in Figures 9 and 13, the elastic element may include a torsion spring 125. The torsion spring 125 may be sleeved on the rotating shaft 15 and connected to the scraper 11. By providing the torsion spring 125, the torsional restoring force of the torsion spring 125 can be used to switch the scraper 11 to a first state.

[0160] The elastic element may include at least two torsion springs 125, which may be respectively sleeved on both ends of the rotating shaft 15 and connected to the scraper 11. In this way, it can be ensured that both ends of the scraper 11 can be subjected to force when switching states, thereby ensuring the stability of the scraper 11 when switching states.

[0161] However, this is not the only one. The elastic elements involved in this disclosure may also include other types of elastic elements, such as rubber bands, which can be selected and set according to actual needs, and all of these are within the protection scope of this disclosure.

[0162] In some embodiments, as shown in Figures 10 and 14, the state switching element 122 may further include a drive wheel 126 and a driven wheel. The drive wheel 126 is rotatably connected to the drive element 121. The driven wheel 127 is mounted on the rotating shaft 15 and contacts the drive wheel 126 to rotate under the drive of the drive wheel 126. Thus, when the driven wheel rotates under the drive of the drive wheel 126, the driven wheel 127 can drive the rotating shaft 15 to rotate, thereby driving the scraper blade 11 to rotate, switching the scraper blade 11 between a first state and a second state. By configuring the drive wheel 126 and the driven wheel 127, this disclosure allows for more precise control of the rotation angle of the scraper blade 11, resulting in a more accurate position of the scraper blade 11 after the state switch.

[0163] For example, when the scraper blade 11 needs to be switched to the second state, the drive member 121 can rotate forward. At this time, the drive wheel 126 can rotate forward under the drive of the drive member 121, and the driven wheel 127 rotates in reverse under the action of the drive wheel 126, thereby switching the scraper blade 11 to the second state. When the scraper blade 11 needs to be switched to the first state, the drive member 121 can rotate in reverse. At this time, the drive wheel 126 can rotate in reverse under the drive of the drive member 121, and the driven wheel 127 rotates forward under the action of the drive wheel 126, thereby switching the scraper blade 11 to the first state.

[0164] Both the drive wheel 126 and the driven wheel 127 can be gears, and they can mesh. This configuration ensures that the driving force generated when the drive wheel 126 rotates can be accurately transmitted to the driven wheel 127, improving the efficiency of driving force transmission. Furthermore, this configuration prevents slippage between the drive wheel 126 and the driven wheel 127, allowing for more accurate positioning of the scraper blade 11 after state switching. Additionally, this configuration allows for position limiting of the scraper blade 11 using the meshing between the drive wheel 126 and the driven wheel 127, preventing accidental rotation of the scraper blade 11 during operation.

[0165] However, it is not limited to this. The driving wheel 126 and the driven wheel 127 may not be gears, but may be other types of wheel-like structures. This disclosure does not impose any specific restrictions on this.

[0166] In some embodiments, the state switching element 122 may include a pull rod. One end of the pull rod may be connected to the drive element 121, and the other end may be connected to the scraper 11 to pull the scraper 11 to switch between a first state and a second transition state. With this configuration, since the pull rod has high structural strength, setting the state switching element 122 as a pull rod can improve the service life of the state switching element 122, thereby improving the service life of the scraper assembly 1.

[0167] In some embodiments, the drive device 12 may be a lifting device to drive the scraper 11 to move in a direction away from or close to the surface 3 to be cleaned, so that the scraper 11 switches between a first state and a second state.

[0168] In this embodiment, the drive device 12 can be a structure consisting of a nut and a screw. By rotating the nut, the nut can move along the screw, thereby driving the scraper 11 to move along the screw. However, it is not limited to this; the drive device 12 can also be a lift or the like, and can be configured according to actual needs.

[0169] In some embodiments of this disclosure, as shown in FIG3, the scraper 11 is also configured to have a third state. When the scraper 11 switches to the third state, the bottom of the scraper 11 can rotate toward the cleaning work section 21, thereby enabling the bottom of the scraper 11 to be closer to the cleaning work section 21 so that the cleaning work section 21 can be used to clean the bottom of the scraper 11.

[0170] In this embodiment, as shown in Figures 3 to 8, when the scraper 11 is switched to the third state, the bottom of the scraper 11 can contact the cleaning work unit 21. This setting can improve the cleaning effect of the cleaning work unit 21 on the scraper 11, so that the cleaning work unit 21 can remove as much dirt as possible from the scraper 11.

[0171] In some embodiments, the state switching element 122 can be configured to switch the scraper 11 between a first state, a second state, and a third state. That is, the present disclosure can use the state switching element 122 to make the scraper 11 be in the first state, or to make the scraper 11 be in the second state, or to make the scraper 11 be in the third state.

[0172] When the state switching member 122 includes a first state switching member and a second state switching member, the second state switching member can be configured to switch the scraper 11 from a second state to a third state. For example, the drive arm 123 can push the scraper 11 to rotate under the drive of the drive member 121 to switch the scraper 11 to the third state. Furthermore, when the scraper 11 is in the third state, the elastic element can have a restoring force inside to switch the scraper 11 from the third state to the first state.

[0173] When the state switching component 122 includes a drive wheel 126 and a driven wheel 127, the drive wheel 126 can be driven to rotate by the drive component 121, and the driven wheel 127 can be driven to rotate by the drive wheel 126, thereby causing the driven wheel 127 to switch the scraper 11 to the third state.

[0174] When the state switching component 122 includes a pull rod, the drive component 121 can also be used to drive the pull rod to move, so as to switch the scraper 11 between the first state, the second state and the third state.

[0175] It should be noted that the working principle and structure of various state switching components 122 have been described in detail in the foregoing embodiments, so they will not be repeated in this embodiment. Please refer to the description in the above embodiments, which is within the protection scope of this disclosure.

[0176] In some embodiments of this disclosure, the driving angle of the driving member 121 can be preset. For example, three driving angles can be preset in the driving member 121, each driving angle corresponding to a state of the scraper 11, thereby further ensuring the accuracy of the position of the scraper 11 after switching states.

[0177] In some embodiments of this disclosure, as shown in Figures 1 to 5, the scraper assembly 1 may further include a distance sensor 14. The distance sensor 14 may be configured to detect the distance between the cleaning unit 2 and an obstacle. When the cleaning unit 2 includes a cleaning workpiece 21, the distance sensor 14 may be configured to detect the distance between the cleaning workpiece 21 and the obstacle.

[0178] In some embodiments, the distance sensor 14 can be installed at the very front of the cleaning unit 2. This configuration improves the stability of the distance sensor 14 installation and ensures the accuracy of the distance measurement by the distance sensor 14.

[0179] When the scraper assembly 1 is provided with at least two scrapers 11, there can be two distance sensors 14. The two distance sensors 14 can be installed at the front end and the rear end of the cleaning host 2 respectively, so as to detect the distance between the front end of the cleaning host 2 and the obstacle and the distance between the rear end of the cleaning host 2 and the obstacle respectively.

[0180] However, it is not limited to this. The distance sensor 14 mentioned above may not be installed on the cleaning host 2. It may also be installed on the support shell 13 or other locations, depending on actual needs.

[0181] This disclosure also provides a cleaning device. This cleaning device can be a floor scrubber, sweeper, or robotic vacuum cleaner, etc. As shown in Figures 1 to 14, the cleaning device may include: a cleaning main unit 2 and a scraper assembly 1. The scraper assembly 1 can be the scraper assembly described above, and the scraper assembly 1 can be installed on the cleaning main unit 2.

[0182] It should be noted that the specific structure and beneficial effects of the scraper assembly 1 have been described in detail in the previous embodiment. Therefore, in this embodiment, the specific structure and beneficial effects of the scraper assembly 1 will not be described again. Please refer to the specific description in the previous embodiment. All of these are within the protection scope of this disclosure.

[0183] The cleaning device provided in this disclosure includes the scraper assembly 1 described above. The scraper 11 in the scraper assembly 1 can switch between a first state and a second state according to the movement direction of the cleaning host 2 and the distance between the cleaning host 2 and the obstacle.

[0184] With this configuration, the present invention can accurately determine whether it is necessary to clean the area near the obstacle based on the movement direction of the cleaning host 2 and the distance between the cleaning host 2 and the obstacle. After determining that it is necessary to clean the area near the obstacle, the scraper 11 is precisely switched to the second state, so that the scraper 11 is closer to the surface 3 to be cleaned, thereby removing dirt, water stains, etc. located near the obstacle.

[0185] Furthermore, after determining that cleaning near the obstacle is not necessary, the squeegee 11 can be kept in the first state or switched from the second state to the first state, so that the distance between the squeegee 11 and the surface 3 to be cleaned is greater, thereby preventing the squeegee 11 from being accidentally lowered when the cleaning host 2 is not close to the obstacle, which would affect the normal operation of the cleaning host 2.

[0186] And / or, the scraper assembly 1 may include a scraper 11 and a trigger 16, wherein the scraper 11 may be configured to switch between a first state and a second state when the trigger 16 is triggered.

[0187] This configuration allows the scraper 11 to switch states as needed. When cleaning dirt or water stains on the surface 3 requires intervention, trigger 16 can be activated to switch the scraper 11 to its second state, enabling cleaning. When cleaning is not required, trigger 16 can be activated to switch the scraper 11 to its first state, facilitating cleaning operations on the main unit 2.

[0188] In some embodiments of this disclosure, the cleaning unit 21 can be a roller brush. However, it is not limited to this; the cleaning unit 21 can also be a side brush or the like, and can be configured according to actual needs.

[0189] This disclosure also provides a cleaning system. The cleaning system may include a base station and cleaning equipment. The cleaning equipment may be the cleaning equipment described above, and the cleaning equipment is capable of interfacing with the base station.

[0190] It should be noted that the specific structure and beneficial effects of the cleaning equipment have been described in detail in the previous embodiment. Therefore, the specific structure and beneficial effects of the cleaning equipment will not be described again in this embodiment. Please refer to the specific description in the previous embodiment. All of these are within the protection scope of this disclosure.

[0191] The cleaning system provided in this disclosure includes the cleaning equipment described above, as shown in Figures 1 to 14. The cleaning equipment includes the aforementioned scraper assembly 1. The scraper 11 in the aforementioned scraper assembly 1 can switch between a first state and a second state according to the movement direction of the cleaning host 2 and the distance between the cleaning host 2 and the obstacle.

[0192] With this configuration, the present invention can accurately determine whether it is necessary to clean the area near the obstacle based on the movement direction of the cleaning host 2 and the distance between the cleaning host 2 and the obstacle. After determining that it is necessary to clean the area near the obstacle, the scraper 11 is precisely switched to the second state, so that the scraper 11 is closer to the surface 3 to be cleaned, thereby removing dirt, water stains, etc. located near the obstacle.

[0193] Furthermore, after determining that cleaning near the obstacle is not necessary, the squeegee 11 can be kept in the first state or switched from the second state to the first state, so that the distance between the squeegee 11 and the surface 3 to be cleaned is greater, thereby preventing the squeegee 11 from being accidentally lowered when the cleaning host 2 is not close to the obstacle, which would affect the normal operation of the cleaning host 2.

[0194] And / or, the scraper assembly 1 may include a scraper 11 and a trigger 16, wherein the scraper 11 may be configured to switch between a first state and a second state when the trigger 16 is triggered.

[0195] This configuration allows the scraper 11 to switch states as needed. When cleaning dirt or water stains on the surface 3 requires intervention, trigger 16 can be activated to switch the scraper 11 to its second state, enabling cleaning. When cleaning is not required, trigger 16 can be activated to switch the scraper 11 to its first state, facilitating cleaning operations on the main unit 2.

[0196] In some embodiments of this disclosure, when the cleaning device is connected to the base station, the scraper 11 can be switched to a third state. That is, when the cleaning device is connected to the base station, it can be considered that the cleaning device is in cleaning mode or standby mode, and the cleaning unit 21 is idle at this time and does not need to perform cleaning work. Switching the scraper 11 to the third state at this time allows the cleaning unit 21 to clean the scraper 11 when it is idle, which can avoid affecting the normal cleaning work of the cleaning unit 21. At the same time, this setting can also ensure that the scraper 11 is clean when the cleaning device performs cleaning work next time.

[0197] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the technical solutions disclosed 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 embodiments are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A scraper assembly configured to be mounted on a cleaning unit, The wiper strip assembly comprises: A distance sensor configured to detect the distance between the cleaning unit and the obstacle; A scraper blade configured to switch between a first state and a second state based on the motion state of the cleaning unit and the distance between the cleaning unit and an obstacle; And / or, the scraper assembly includes: a scraper and a trigger, the scraper being configured to switch between a first state and a second state when the trigger is triggered; In the first state, there is a first distance between the bottom of the scraper and the surface to be cleaned; in the second state, there is a second distance between the bottom of the scraper and the surface to be cleaned; the first distance is greater than the second distance.

2. The wiper strip assembly of claim 1, wherein, The scraper is installed at the front end of the cleaning unit.

3. The wiper strip assembly of claim 2, wherein, The scraper is configured to switch to the first state when the cleaning unit moves in the first direction; The scraper is configured to switch to the second state when the distance between the front end of the cleaning unit and the obstacle is less than or equal to a preset distance, and the cleaning unit moves in a direction opposite to the first direction; And / or, the scraper is configured to switch to the second state when the cleaning unit stops moving; Wherein, the first direction is the direction from the rear end of the cleaning host to the front end of the cleaning host.

4. The wiper blade assembly of claim 3, wherein, The cleaning unit includes: The cleaning work unit has the scraper installed at its front end.

5. The scraper assembly according to claim 4, wherein, When the cleaning workpiece moves along the first direction, the scraper switches to the first state; When the distance between the front end of the cleaning unit and the obstacle is less than or equal to a preset distance, and the cleaning unit moves in a direction opposite to the first direction, the scraper switches to the second state; And / or, when the cleaning workpiece stops moving, the scraper switches to the second state.

6. The wiper blade assembly of claim 3, wherein, The scraper assembly includes at least two scrapers, each of which includes a first scraper and a second scraper, wherein the first scraper is configured to be mounted at the front end of the cleaning unit and the second scraper is configured to be mounted at the rear end of the cleaning unit. When the cleaning host moves in the first direction or in the opposite direction, both the first scraper and the second scraper switch to the first state. When the distance between the front end of the cleaning unit and the obstacle is less than or equal to a preset distance, and the cleaning unit moves in a direction opposite to the first direction, the first scraper switches to the second state, and the second scraper switches to the first state. When the distance between the rear end of the cleaning host and the obstacle is less than or equal to a preset distance, and the cleaning host moves along the first direction, the second scraper switches to the second state, and the first scraper switches to the first state; When the cleaning unit stops moving, the first scraper and / or the second scraper switch to the second state.

7. The wiper blade assembly of claim 2, wherein, The scraper is configured to switch between the first state and the second state when the trigger is actively triggered; and / or, the scraper is configured to switch between the first state and the second state when the trigger is passively triggered.

8. The wiper blade assembly of claim 7, wherein, The scraper assembly includes at least two scrapers, each of which includes a first scraper and a second scraper, wherein the first scraper is configured to be mounted at the front end of the cleaning unit and the second scraper is configured to be mounted at the rear end of the cleaning unit. When the trigger is actively triggered, the first scraper and / or the second scraper switch between the first state and the second state; And / or, when the trigger is passively triggered, the first scraper and / or the second scraper switch between the first state and the second state.

9. The wiper blade assembly of claim 4, wherein, The scraper is also configured to have a third state, in which the bottom of the scraper rotates toward the cleaning work area when the scraper switches to the third state.

10. The wiper blade assembly of claim 9, wherein, When the scraper is switched to the third state, the bottom of the scraper contacts the cleaning work area.

11. The wiper blade assembly of claim 1, wherein, The second distance is 0.

12. The wiper blade assembly of any one of claims 1 to 11, wherein, The scraper assembly also includes: A driving device is in contact with or connected to the scraper to drive the scraper to switch between the first state and the second state.

13. The wiper blade assembly of claim 12, wherein, The driving device includes: Drive components; A state switching element is connected to the drive element, and the state switching element is configured to switch the scraper between a first state and a second state.

14. The wiper blade assembly of claim 13, wherein, The scraper assembly further includes a support housing, and the drive component is mounted on the support housing.

15. The wiper blade assembly of claim 14, wherein, The scraper includes a rotating shaft, and the scraper is rotatably connected to the support shell through the rotating shaft; The state switching component can rotate the scraper to switch the scraper between the first state and the second state.

16. The wiper blade assembly of claim 15, wherein, The state switching component includes: A first state switcher is configured to restore the scraper to a first state; A second state switcher is connected to the drive unit and is configured to switch the scraper to a second state.

17. The wiper blade assembly of claim 16, wherein, The second state switching element includes: A drive arm is provided, one end of which is connected to the drive component, and the drive arm can push the scraper to rotate under the drive of the drive component, so as to switch the scraper to the second state.

18. The wiper blade assembly of claim 17, wherein, The scraper includes: The cam is driven by the drive arm to switch the scraper to the second state.

19. The wiper blade assembly of claim 18, wherein, The drive arm and the cam are always in contact.

20. The wiper blade assembly of claim 17, wherein, The first state switching component includes: An elastic element is provided, which is connected to both the support shell and the scraper; when the scraper is in the second state, the elastic element has a restoring force.

21. The wiper blade assembly of claim 20, wherein, The elastic element includes: A tension spring, one end of which is connected to the support shell and the other end of which is connected to the scraper.

22. The wiper blade assembly of claim 20, wherein, The elastic element includes: A torsion spring is sleeved on the rotating shaft and connected to the scraper.

23. The wiper blade assembly of claim 15, wherein, The state switching component includes: The drive wheel is rotatably connected to the drive component; A driven wheel is mounted on the rotating shaft and contacts the driving wheel to rotate under the drive of the driving wheel.

24. The wiper blade assembly of claim 23, wherein, Both the driving wheel and the driven wheel are gears, and the driving wheel and the driven wheel mesh with each other.

25. The wiper blade assembly of claim 15, wherein, The state switching component includes: A pull rod, one end of which is connected to the drive component and the other end of which is connected to the scraper, to pull the scraper to switch between the first state and the second state.

26. The wiper blade assembly of claim 12, wherein, The driving device is a lifting device, which drives the scraper to move in a direction away from or close to the surface to be cleaned, so that the scraper switches between the first state and the second state.

27. The wiper blade assembly of claim 15, wherein, The supporting shell includes: First shell; The second housing is connected to the first housing and extends away from the first housing; The driving component is disposed on the side of the first housing close to the second housing, and the scraper is rotatably mounted on the side of the first housing opposite to the second housing.

28. The wiper blade assembly of claim 27, wherein, The first housing is provided with a first through hole; at least a portion of the drive device passes through the first through hole to contact or connect with the scraper; or, at least a portion of the scraper passes through the first through hole to contact or connect with the drive device.

29. The wiper blade assembly of claim 12, wherein, The scraper is also configured to have a third state; the drive device is capable of driving the scraper to switch between the first state, the second state, and the third state.

30. The wiper blade assembly of any one of claims 1 to 11, wherein, The scraper assembly also includes: A distance sensor is configured to detect the distance between the cleaning unit and the obstacle.

31. The wiper blade assembly of claim 30, wherein, The distance sensor is installed at the very front of the cleaning unit.

32. The wiper blade assembly of claim 5, wherein, The preset distance is greater than or equal to 0 mm and less than or equal to 2 mm.

33. A cleaning device, comprising: Clean the main unit; A scraper assembly, wherein the scraper assembly is the scraper assembly according to any one of claims 1 to 32, and the scraper assembly is installed on the cleaning host.

34. A cleaning system comprising: Base station; The cleaning device is the cleaning device according to claim 33, and the cleaning device is capable of interfacing with the base station.

35. The cleaning system of claim 34, wherein, When the cleaning equipment is connected to the base station, the scraper switches to the third state.

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