Cleaning device

Abstract

The invention relates to cleaning equipment which is provided with a rolling brush assembly, and the rolling brush assembly comprises at least one rolling brush used for cleaning a surface to be cleaned; the rolling brush cavity is used for accommodating the rolling brush; the hair cleaning device is configured to clean hair on the rolling brush; the hair cleaning device has at least a first state and a second state, where the second state is different from the first state. According to the cleaning equipment, the hair cleaning device has two different states, in one state, the hair on the rolling brush can be stripped from the rolling brush by the hair cleaning device, in the other state, the stripped hair can be separated from the hair cleaning device and can be sucked away, interference of wound hair on rotation of the rolling brush is reduced, and the service life of the rolling brush is prolonged. And the cleaning efficiency of the rolling brush is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular to a cleaning equipment. Background Art

[0002] With the continuous development of intelligent technology, intelligent cleaning equipment has emerged to assist users in cleaning the floor.

[0003] A sweeping robot generally uses a brushing and vacuuming method to suck the dust and debris on the ground into its own garbage collection box, thereby completing the cleaning of the ground. A sweeping robot generally includes a body, and a vacuum port is provided at the bottom of the body. A roller brush is provided at the vacuum port. The roller brush rotates and beats the dust on the ground, so that the dust is lifted and sucked into the body through the vacuum port. However, since there are often some impurities such as hair, fluff, and cotton wool on the ground, soft impurities such as hair and fluff are easily entangled on the roller brush during the process of the impurities being sucked into the body through the vacuum port. Not only will they rub against the ground to produce noise, affecting the cleaning effect, but they will also move toward the rotating shafts at both ends of the roller brush as the roller brush rotates, jamming the rotating shafts of the roller brush, thereby affecting the normal operation of the roller brush and causing problems such as roller brush failure. Summary of the invention

[0004] In view of this, it is necessary to improve the current cleaning robot to clean the hair and improve the cleaning efficiency of the roller brush.

[0005] The technical solution adopted by the present invention to solve the problems of the prior art is:

[0006] In a first aspect, the present disclosure provides a cleaning device, comprising:

[0007] at least one roller brush for cleaning the surface to be cleaned;

[0008] A roller brush cavity, used for accommodating a roller brush;

[0009] A hair cleaning device, configured to clean the hair on the roller brush;

[0010] The hair cleaning device has at least a first state and a second state, wherein the second state is different from the first state.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the cleaning device provided by the present invention, by arranging a hair cleaning device on the roller brush assembly, the hair cleaning device has two different states, in one state, the hair on the roller brush can be peeled off the roller brush by the hair cleaning device, and in another state, the peeled hair can be separated from the hair cleaning device and can be sucked away, and then separated from the roller brush cavity; for example, the hair cleaning device can be arranged to be deformable or movable so that the hair cleaning device has two different states, so that when the hair cleaning device cleans the hair on the roller brush, since the hair cleaning device is deformable or movable, the cleaned hair falls off the hair cleaning device and is sucked away under the action of negative pressure to separate from the roller brush cavity, so that the hair will not be entangled or less entangled on the hair cleaning device, thereby reducing the interference of the entangled hair on the rotation of the roller brush, which is beneficial to improving the cleaning efficiency of the roller brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0013] The above-mentioned objectives, technical solutions and beneficial effects of the present invention can be achieved through the following drawings:

[0014] Figure 1 is a schematic top view of a hair cleaning device provided by an embodiment of the present invention;

[0015] Figure 2 is a three-dimensional schematic diagram of a roller brush assembly provided in one embodiment of the present invention;

[0016] Figure 3 is a bottom view schematic diagram of a roller brush assembly provided by an embodiment of the present invention;

[0017] Figure 4 is a schematic diagram of the installation position of a hair cleaning device provided by an embodiment of the present invention;

[0018] Figure 5 is a schematic diagram of the installation position of a hair cleaning device provided by another embodiment of the present invention;

[0019] Figure 6 is a cross-sectional schematic diagram of a hair cleaning device provided by an embodiment of the present invention;

[0020] Figure 7 is a cross-sectional schematic diagram of a hair cleaning device provided by another embodiment of the present invention;

[0021] Figure 8 is a cross-sectional schematic diagram of a hair cleaning device provided by another embodiment of the present invention;

[0022] Fig. 9 is a cross-sectional schematic diagram of a roller brush assembly having a cut-hair roller brush provided by an embodiment of the present invention;

[0023] Fig.10 is a schematic diagram of the overlap of a hair cleaning device and a cleaning part provided by an embodiment of the present invention;

[0024] Fig.11 is a schematic diagram of a hair cleaning device provided by an embodiment of the present invention in a first state;

[0025] Fig.12 is a schematic diagram of a hair cleaning device provided by an embodiment of the present invention in a second state;

[0026] Fig.13 is a schematic diagram of a hair cleaning device provided by another embodiment of the present invention in a first state;

[0027] Fig.14 is a schematic diagram of a hair cleaning device provided by another embodiment of the present invention in a second state;

[0028] Fig.15 is a schematic diagram of a hair cleaning device provided by another embodiment of the present invention in a first state;

[0029] Fig.16 is a schematic diagram of a hair cleaning device provided by another embodiment of the present invention in a second state;

[0030] Fig.17 It is a schematic diagram of a plurality of hair cleaning devices provided by an embodiment of the present invention arranged in a circumferential direction;

[0031] Fig.18 is a schematic diagram of another embodiment of the present invention providing a plurality of hair cleaning devices in a circumferential direction;

[0032] Fig.19 It is a schematic diagram of a roller brush assembly provided with a baffle plate according to an embodiment of the present invention;

[0033] Fig. 20 It is a cross-sectional schematic diagram of a roller brush assembly provided by an embodiment of the present invention provided with a baffle;

[0034] Reference numerals:

[0035] 10-Roller brush assembly;

[0036] 100-roller brush;

[0037] 300-cutting brush;

[0038] 1001-first roller brush;

[0039] 1002- second roller brush;

[0040] 1003-wool tops;

[0041] 1004- adhesive strip;

[0042] 101-roller brush chamber;

[0043] 102-hair cleaning device;

[0044] 1021-hair action part;

[0045] 1022-installation department;

[0046] 103-Dust inlet

[0047] 104- air duct;

[0048] 105-motor;

[0049] 106-transmission mechanism;

[0050] 107-Baffle

[0051] 201-upper housing;

[0052] 202-lower housing;

[0053] 203-cover switch;

[0054] Z-preset range. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0058] At present, when cleaning, the dog hair, hair and other hair on the ground will be entangled on the roller brush. In particular, the hair characteristics of different breeds of dogs are very different, such as length, density, viscosity, smoothness, etc. Longer and stickier dog hair will be adsorbed on the roller brush and entangled in a circle, which is difficult to clean, reduces the cleaning efficiency, and even damages the roller brush. In this application, the cleaning device may include a cleaning robot and a handheld cleaning device, wherein the cleaning robot includes a sweeping robot, a floor washing robot and a sweeping and mopping robot, and the handheld cleaning device includes a vacuum cleaner and a floor scrubber. For the convenience of explanation.

[0059] In order to solve the above problems, fixed teeth can be added in the roller brush cavity. However, although this solution can achieve a certain cleaning effect on the hair on the roller brush through the fixed teeth, since the fixed teeth can only scrape off the floating hair on the surface of the roller brush, some shorter and less sticky dog ​​hair and other hair can be cleaned. However, for longer and more sticky dog ​​hair and other hair, the cleaning effect is not good. The main reason is that the longer hair or the more sticky hair will also be adsorbed on the fixed teeth and clump into a ball. The balled hair attached to the fixed teeth will block the fixed teeth, resulting in a worse and worse hair cleaning effect, and even affect the rotation of the roller brush.

[0060] For the sake of convenience of explanation, the aforementioned embodiments of the present application will not distinguish between cleaning robots and handheld cleaning devices. A roller brush assembly can be provided on all cleaning devices, and the hair action part of the roller brush assembly can be deformed or movable. In some embodiments, the various features of the aforementioned embodiments will be combined to distinguish the advantages and disadvantages of using movable and deformable hair action parts in cleaning robots, and will be explained in detail.

[0061] In view of this, refer to Figures 1 to 20 The present disclosure provides a roller brush assembly 10, comprising:

[0062] At least one rolling brush 100, used to clean the surface to be cleaned;

[0063] The roller brush chamber 101 is used to accommodate the roller brush;

[0064] The hair cleaning device 102 is configured to clean the hair on the roller brush;

[0065] The hair cleaning device has at least a first state and a second state, and the second state is different from the first state.

[0066] Regarding how to characterize the difference between the first state and the second state:

[0067] In some embodiments, in the first state, hair can be peeled off the roller brush; in other words, when the hair cleaning device is in the first state, the hair cleaning device is configured to peel hair off the roller brush or at least part of the hair attached to the roller brush can be peeled off the roller brush by the hair cleaning device.

[0068] It should be noted that the stripping can be achieved by scraping, hooking, etc. of the hair cleaning device; taking the scraping method as an example, when the hair contacts the hair cleaning device, the hair can be at least partially stripped from the roller brush under the scraping action of the hair cleaning device.

[0069] In some embodiments, in the second state, the hair can be sucked away to escape from the roller brush chamber; for example, in the second state, the hair can escape from the hair cleaning device and then be sucked away to escape from the roller brush chamber, thereby avoiding the impact of the accumulation of hair, the cleaning effect of the hair cleaning device and the problem of affecting the rotation of the roller brush; in other words, when the hair cleaning device is in the second state, at least part of the hair peeled off the roller brush can be detached from the hair cleaning device and sucked away under the action of negative pressure, thereby detaching from the roller brush chamber.

[0070] In some embodiments, negative pressure can be provided by a fan; the roller brush assembly has a dust inlet 103, and the roller brush chamber may include a dust inlet; the dust inlet can be connected to the fan through an air duct 104; at this time, in the second state, the hair can be under the action of the negative pressure provided by the fan, through the dust inlet and the air duct to reach the dust collecting device (such as a dust box, dust bag, dust cup, etc.) for collecting foreign matter such as dust and hair.

[0071] In summary, the hair cleaning device provided by the present invention can achieve two functions. On the one hand, it can peel off the hair on the roller brush and make the hair detach from the roller brush; on the other hand, the hair can fall off from the hair cleaning device, that is, the hair can detach from the hair cleaning device and then be sucked away and detach from the roller brush cavity.

[0072] In order to enable hair to escape from the hair cleaning device, the movement space of the hair can be improved. Therefore, in some embodiments, in the second state, the movement space of the hair is larger than that in the first state, which is conducive to the hair escaping from the hair cleaning device.

[0073] In order to enable the hair to be sucked away quickly, in some embodiments, in the second state, the movement space of the hair on the side facing the dust inlet is larger than that in the first state, thereby facilitating the hair to be quickly sucked away and out of the roller brush chamber after it leaves the hair cleaning device.

[0074] It can be understood that the direction of the force applied by the roller brush to the hair action portion, the deformation direction of the deformable hair action portion or the movement direction of the movable hair action portion are the same.

[0075] It should be noted that the direction of the force applied by the roller brush to the hair action part is related to the rotation direction of the roller brush, and the deformation direction of the deformable hair action part or the movement direction of the movable hair action part is related to the direction of the force applied by the roller brush to the hair action part. Therefore, the direction of the force applied by the roller brush to the hair action part can be controlled by controlling the rotation direction of the roller brush, thereby achieving control of the deformation direction of the deformable hair action part or the movement direction of the movable hair action part.

[0076] In some embodiments, the roller brush assembly includes a shell that can be used to form a roller brush chamber, and the roller brush is mounted on the shell and is rotatable relative to the shell.

[0077] In order to realize the rotation of the roller brush, in some embodiments, the roller brush assembly includes a motor 105 for driving the roller brush to rotate.

[0078] In some embodiments, the roller brush assembly includes a transmission mechanism 106 connected to the motor 105, and the transmission mechanism 106 is used to transmit the power of the motor 105 to the roller brush, so that the motor can drive the roller brush to rotate. Optionally, the transmission mechanism can be a gear mechanism including a gear box, for example, which is not limited in this embodiment.

[0079] In some embodiments, a dust inlet is provided on the housing, and the dust inlet may be connected to one end of the air duct; the other end of the air duct may be connected to a fan that provides negative pressure.

[0080] In order to facilitate maintenance of the roller brush, in some embodiments, the housing includes an upper housing 201, and the dust inlet is arranged on the upper housing;

[0081] Furthermore, the shell may also include a lower shell 202 (also called a lower cover plate), and the upper shell and the lower shell are arranged to form a roller brush cavity for accommodating the roller brush assembly.

[0082] In some embodiments, the upper housing and the lower housing are detachably connected.

[0083] To facilitate user operation, in some embodiments, the shell may further include a cover switch 203, which is disposed at the connection between the upper shell and the lower shell. The user may open the lower cover by toggling the cover switch to perform maintenance on the roller brush.

[0084] In some embodiments, the hair cleaning device may be disposed in the roller brush cavity.

[0085] Considering that the roller brush chamber is formed by the upper shell and the lower cover, the hair cleaning device can be set on the upper shell or on the lower cover; specifically, it can be set according to the space and requirements of the roller brush chamber (for example, it can be set in a position that is convenient for users to disassemble).

[0086] In order to facilitate maintenance of the hair cleaning device, in some embodiments, the hair cleaning device is configured to be detachably connected to the roller brush chamber to facilitate maintenance of the entire hair cleaning device including the hair action portion.

[0087] Among them, the detachable connection between the hair cleaning device and the roller brush chamber can be achieved by, for example, bonding, snap connection, and threaded connection; after the upper shell and the lower cover are disconnected or the lower cover is opened, the detachable connecting parts (such as screws, snaps, adhesive strips) between the hair cleaning device and the roller brush chamber can be exposed, so that the user can disassemble and maintain the hair cleaning device.

[0088] In order to realize that the hair cleaning device has two states or to realize that the activity space of the hair in the second state is larger than the activity space in the first state, so that the hair can be separated from the hair cleaning device:

[0089] In some embodiments, the hair cleaning device has a hair action portion, and the hair action portion is deformable. In this case, the hair cleaning device has a first state and a second state through the deformation of the hair action portion.

[0090] In order to improve the cleaning effect of the roller brush hair, in some embodiments, the hair cleaning device has a hair action portion along the length direction of the roller brush.

[0091] Considering the morphological setting of the hair action portion, in some embodiments, the hair action portion may also be configured as a tooth-like structure;

[0092] In some embodiments, the hair cleaning device is provided with a plurality of hair action parts along the length direction of the roller brush, and the plurality of hair action parts are arranged at intervals. In other words, there is a spacing between two adjacent hair action parts to form a tooth-like structure.

[0093] It should be pointed out that, in other embodiments, the hair action portion may also be constructed as a plate-shaped or strip-shaped structure; in other words, the hair cleaning device has the hair action portion along the length direction of the roller brush as a whole.

[0094] In order to achieve deformation of the hair action portion, in some embodiments, the hair action portion is made of flexible materials, such as bristles, rubber, etc.

[0095] In order to improve the cleaning effect of hair, in some embodiments, the stripping method is a hooking method.

[0096] In order to achieve the effect of hooking the hair or hooking the hair off the roller brush, for example, when the hair action part uses bristles, two adjacent bristles are spaced apart to form a tooth-like structure. For the convenience of description, the hair action part can be called a hair strip.

[0097] For another example, when the hair action part is a bundle of multiple bristles, there is a gap between two adjacent bundles of bristles to form a tooth-like structure. For the convenience of description, the hair action part at this time can be called a combing tooth.

[0098] For another example, when the hair action part is made of rubber, adjacent rubber strips are spaced apart to form a tooth-like structure. For the convenience of description, the hair action part at this time can be called rubber teeth.

[0099] In some embodiments:

[0100] Generally speaking, the voltage of a vacuum cleaner is relatively high, and it is usually powered by an AC power supply. Therefore, the negative pressure it can provide is relatively high, so the hair action part used inside it can be movable or deformable. After a large number of experimental verifications by the applicant, it is believed that although the cost of the movable hair action part is lower, its effect of removing hair is not strong. After each hair removal, a fan with strong negative pressure is required to clean up the remaining hair on the roller brush. Therefore, the movable hair action part is more suitable for high-voltage equipment such as vacuum cleaners.

[0101] However, due to size and voltage constraints, cleaning robots are usually unable to provide strong negative pressure and are usually powered by a DC power supply (battery pack). For the sake of convenience, negative pressure (suction) data of different types of cleaning equipment are provided as shown in Table 1.

[0102] Table 1

[0103] model suction Mousen's third generation product (vacuum cleaner) 120AW (Airwatts) Mousen's fourth generation product (vacuum cleaner) 140AW The fifth generation product of a certain product (vacuum cleaner) 130AW A third-generation product (vacuum cleaner) 120AW This application (cleaning robot) 30-60AW

[0104] It can be seen from Table 1 that the suction power of the cleaning robot is 2-4 times lower than that of the vacuum cleaners on the market, which means that it cannot provide the same negative pressure capacity as the vacuum cleaner, so it is necessary to use a hair action part with stronger hair peeling ability to handle the hair in conjunction with the weaker negative pressure capacity.

[0105] After a large number of experiments, the applicant concluded that the deformable hair action part has a stronger ability to peel off hair than the movable hair action part. When the distance with the roller brush is the same, after the deformable hair action part in the present application peels off the hair of the roller brush, there is less hair remaining on the roller brush.

[0106] As a preferred solution, the deformable hair action part is made of flexible material, such as bristles or rubber, in which the stripping ability of the bristles is better than that of the rubber. In the scenario of using bristles, the bristles can contact the roller brush. If the roller brush does not rotate at this time, and there is no hair on the circumferential surface of the roller brush, the force of the roller brush on the bristles is small, and the hair action part can be considered to be in the first state. When the cleaning robot is working, the roller brush rotates, causing more hair to be adsorbed on it, and the force of the roller brush on the bristles is larger than that in the first state, and the hair action part can be considered to be in the second state.

[0107] In order to enable those skilled in the art to better understand the present application, the present application provides a detailed description of the hair action part. The hair action part may be a hair strip, which includes a bearing surface and a hair bundle arranged on the bearing surface. At least one row of hair bundles may be arranged on the bearing surface. The hair bundles may be arranged along the axial direction of the roller brush. There is a certain interval between the hair bundles. A number of bristles are arranged on each row of hair bundles. The diameter of the bristles may be 0.05mm-0.3mm. The density of each row of hair bundles is 240-720 bristles per centimeter. The brush may be a corrugated wire, and the bearing surface may be a nylon cloth. The diameter of the bristles may be set differently according to the use area of ​​the cleaning robot. For example, the hair in the North Caucasus region is relatively thick, so the diameter of the bristles may be set relatively thick, and the density of the bristles on the hair bundles is relatively low; the hair in Southeast Asia is relatively thin, so the diameter of the bristles may be set relatively thin, and the density of the bristles on the hair bundles is relatively high. Therefore, the diameter of the bristles and the density of the bristles on the hair bundles are related to the average hair parameters of the region, which include diameter and hardness.

[0108] At this time, since the density between the bristles is more appropriate, the deformed bristles are easier to stick to hair, and the bristles can be bent arbitrarily, the hair on the roller brush can be better clamped in the bristles, so most of the hair on the roller brush can be peeled off, compared with the movable hair action part, since the movable hair action part is usually made of rigid material, the hair on the roller brush can easily slide off the hair action part made of rigid material. Therefore, the deformable hair action part of the present application has a better peeling effect than the movable rigid hair action part. Combined with the weaker negative pressure capacity than the vacuum cleaner, it can basically achieve the hair cleaning effect of a vacuum cleaner, or even better than the hair cleaning effect of a vacuum cleaner.

[0109] In summary, in some preferred embodiments, the cleaning robot may use a deformable hair strip as the hair action part, and the vacuum cleaner may use a movable hair action part.

[0110] In another embodiment, the hair cleaning device has a hair action portion, and the hair action portion is movable. In this case, the hair cleaning device has a first state and a second state through the movement of the hair action portion.

[0111] In order to achieve the mobility of the hair action part, in some embodiments, the hair action part is configured to be movably connected to the roller brush chamber. In other words, the hair action part is movable relative to the roller brush chamber, for example, it is movably connected to the roller brush chamber by means of a hinge, a connecting rod, etc.

[0112] It is understandable that, since the hair action part is movable, at this time, the hair action part can be made of hard materials, such as plastic, metal, etc.; of course, in other embodiments, when the hair action part is movable, the hair action part can also be made of flexible materials, which is not limited in this embodiment.

[0113] Considering the problem of how to reset the hair action part, in some embodiments, the hair cleaning device includes a reset member, such as a spring or other material, so that the movable hair action part can be reset under the action of the spring.

[0114] It should be noted that when the hair action portion is deformable, in order to achieve resetting of the hair action portion, in some embodiments, the hair action portion may be made of an elastic deformable material, and resetting can be achieved through its own deformation.

[0115] Taking into account how to replace the hair action portion, in some embodiments, the hair action portion is detachable; in other words, the hair action portion is detachable relative to the roller brush chamber (or housing).

[0116] In order to realize the detachability of the hair action portion, in some embodiments, the hair action portion is directly arranged in the roller brush cavity by means of gluing or clamping.

[0117] Taking into account the shape (such as hair bundles), quantity (such as multiple), material (such as hard materials that cannot be deformed, in which case the hair action part needs to be movable), etc. of the hair action part, in order to improve the convenience of replacement, therefore, in some embodiments, the hair cleaning device may also include a mounting part 1022, one end of the mounting part is detachably connected to the roller brush chamber (or shell), and the hair action part is arranged at the other end of the mounting part 1022, and the hair action part cleans the hair of the roller brush.

[0118] For example, when the hair action portion is deformable, the mounting portion may be a Velcro, that is, the mounting portion is detachably arranged in the roller brush cavity by gluing.

[0119] Of course, the mounting portion can be detachably arranged in the roller brush cavity by means of a snap-on or plug-in connection.

[0120] By detachably connecting the mounting portion of the hair cleaning device to the housing, the hair action portion can be conveniently replaced in time according to the usage situation.

[0121] For another example, when the hair action part is movable, the mounting part may adopt a hinge mechanism, which has a rotating shaft, and the hair action part can rotate along the rotating shaft, that is, the mounting part is detachably arranged in the roller brush cavity by means of a hinge.

[0122] In order to characterize the first state and the second state, on the one hand, they can be characterized by force, wherein in the two states, the magnitude of the force applied by the roller brush to the hair action part is different. For example, the amount / accumulation of hair on the roller brush can be used to characterize that the force applied by the roller brush to the hair action part in the two states is different.

[0123] Therefore, in some embodiments, in the first state, the force applied to the hair action portion by the roller brush is smaller than the force applied to the hair action portion by the roller brush in the second state.

[0124] For another example, a threshold value may be used to compare the forces applied by the roller brush to the hair action portion in the first state and the second state respectively, so as to indirectly indicate that the magnitudes of the forces applied by the roller brush to the hair action portion in the two states are different.

[0125] In some embodiments, the threshold here can be selected to represent the intrinsic force of the state change of the hair action part. For example, when the hair action part is deformable, the threshold can be selected to represent the deformation force of the hair action part. In the first state, the force applied by the roller brush to the hair action part is smaller than the deformation force of the hair action part itself; in the second state, the force applied by the roller brush to the hair action part is larger than the deformation force of the hair action part itself.

[0126] It can be understood that in the first state, there are fewer hairs on the roller brush, and the force applied by the roller brush to the hair action part or the force applied by the roller brush to the hair action part is smaller. At this time, the force applied by the roller brush to the hair action part is smaller than the deformation force of the hair action part itself, and the hair action part can be maintained in the first state;

[0127] As the hair gradually accumulates and the amount of hair on the roller brush increases, the force applied by the roller brush to the hair action part increases. When the hair accumulates to a certain extent (the force applied by the roller brush to the hair action part reaches a critical value), the force applied by the roller brush to the hair action part is equal to the deformation force of the hair action part itself. If the amount of hair increases further, the hair action part will be deformed. For example, when the force applied by the roller brush to the hair action part is greater than the deformation force of the hair action part itself, the hair action part will be deformed and the hair cleaning device will switch to the second state.

[0128] In summary, it can be seen that the deformable hair action part is passively deformed by the accumulation of hair on the roller brush, thereby causing a change in state.

[0129] In some embodiments, when the hair action part is movable, the threshold can be selected from the driving force when the hair action part, especially the connecting part (such as a hinge) is driven. In the first state, the force applied by the roller brush to the hair action part is smaller than the driving force of the hair action part; in the second state, the force applied by the roller brush to the hair action part is greater than the driving force of the hair action part.

[0130] It can be understood that, in the first state, there are fewer hairs on the roller brush, and the force applied by the roller brush to the hair action part or the force applied by the roller brush to the hair action part is smaller. At this time, the force applied by the roller brush to the hair action part is smaller than the driving force of the hair action part, and the hair action part can be maintained in the first state;

[0131] As the hair gradually accumulates and the amount of hair on the roller brush increases, the force applied by the roller brush to the hair action part, or the force applied by the roller brush to the hair action part, becomes greater. When the hair accumulates to a certain extent (the critical value of the force applied by the roller brush to the hair action part), the force applied by the roller brush to the hair action part is equal to the driving force of the hair action part. If the amount of hair increases further, the connector of the hair action part will be driven, thereby driving the hair action part to move. For example, when the force applied by the roller brush to the hair action part is greater than the driving force of the hair action part, the hair action part moves, and the hair cleaning device switches to the second state.

[0132] In summary, it can be seen that the movable hair action part is passively deformed by the accumulation of hair on the roller brush, thereby causing a change in state.

[0133] The above passive meaning can be understood as no additional driving structure is provided to actively drive the hair action part to generate deformation or activity.

[0134] On the other hand, the first state and the second state can be characterized by angles, wherein in the two states, the angles between the hair action portion and the preset direction are different. For example, in the first state, the angle between the hair action portion and the preset direction is smaller than the angle between the hair action portion and the preset direction in the second state; the preset direction here includes but is not limited to the vertical direction, the horizontal direction, the extension direction of the hair action portion, etc.

[0135] Taking into account that the extension direction of the hair action part will be changed by force, the extension direction of the hair action part when no force is applied by the roller brush (also called the natural extension direction) is selected here. It can be understood that when there are multiple hair action parts, especially when the directions of the multiple hair action parts are different, the natural extension direction of the same hair action part should be used as a reference to compare the angles of the first state and the second state.

[0136] On the other hand, the first state and the second state can also be characterized by the distance between at least part of the hair action portion and the center of the roller brush; considering that the hair action portion can be an area, for the convenience of description, the free end of the hair action portion (the closest end of the hair action portion to the roller brush) can be used, where the distance between the free end of the hair action portion and the center of the roller brush is different in the two states; for example, in the first state, the distance between the free end of the hair action portion and the center of the roller brush is smaller than the distance between the free end of the hair action portion and the center of the roller brush in the second state.

[0137] In some embodiments, the roller brush includes a brush roller and a cleaning portion disposed on the brush roller, which can tap the surface to be cleaned to clean the surface; the cleaning portion can, for example, be a wool strip, a rubber strip, a combination of a wool strip and a rubber strip, etc.

[0138] It should be noted that the brush roller and the cleaning part can be integrally formed or separately formed. For example, a slot for installing the cleaning part is provided on the brush roller, and the cleaning part is installed on the brush roller through the slot. This embodiment does not limit this.

[0139] In order to improve the hair cleaning effect, in some embodiments, when the hair action part is deformable, the material selected for the hair action part is the same as the material of the cleaning part; for example, when the cleaning part includes a wool strip (including two cases where the cleaning part only includes a wool strip and the cleaning part includes a wool strip and a rubber strip), the hair action part uses the bristle material of the wool strip; for another example, when the cleaning part only includes a rubber strip, the hair action part uses the rubber material of the rubber strip.

[0140] It should be pointed out that in other embodiments, the material selected for the hair action part is similar to the material of the cleaning part. For example, when the cleaning part includes a wool strip (including two cases where the cleaning part only includes a wool strip and the cleaning part includes a wool strip and a rubber strip), the hair action part can also be made of rubber similar to the material of the wool strip.

[0141] It is understandable that when the hair action part is movable, in order to further improve the cleaning effect, the material selected for the hair action part and the material of the cleaning part can also be the same. For example, when the cleaning part includes a wool strip (including two cases that the cleaning part only includes a wool strip and the cleaning part includes a wool strip and a rubber strip), the hair action part uses the bristle material of the wool strip; for example, when the cleaning part only includes a rubber strip, the hair action part uses the rubber material of the rubber strip.

[0142] The hair cleaning effect of the roller brush can be further improved by combining the activity of the hair action part with the deformable mode.

[0143] Of course, in other embodiments, when the hair action part is movable, the material selected for the hair action part and the material of the cleaning part may also be different; for example, when the cleaning part includes a wool strip (including two cases where the cleaning part only includes a wool strip and the cleaning part includes a wool strip and a rubber strip), the hair action part is made of a hard material; for another example, when the cleaning part only includes a rubber strip, the hair action part may also be made of a hard material.

[0144] It should be pointed out that in other embodiments, the material selected for the hair action part is similar to that of the cleaning part. For example, when the cleaning part includes a wool strip (including the two cases that the cleaning part only includes a wool strip and the cleaning part includes a wool strip and a rubber strip), the hair action part can also be made of the rubber material of the rubber strip.

[0145] In order to further improve the hair cleaning effect, in some embodiments, the roller brush also includes a cutting blade for cutting the hair on the roller brush; in this case, the roller brush can be called a hair cutting roller brush 300.

[0146] The hair cleaning effect can be further improved by making the hair action part movable or deformable in combination with the cutting blade.

[0147] It should be pointed out that when the roller brush is a hair cutting roller brush, in order to prevent the hair action portion from being damaged by the cutting blade and affecting the hair cleaning effect, in some embodiments, there is a spacing between the hair action portion and the cutting blade, wherein the spacing is greater than or equal to 0; further, the spacing between the hair action portion and the cutting blade is greater than 0.

[0148] Regarding the problem of how to set the height of the hair action portion (along the extension direction of the hair action portion), considering that the sizes of different roller brushes are different, the height constraint of the hair action portion can be characterized by the distance between the hair action portion and the cleaning portion.

[0149] In view of the difference in the distance between the hair action part and the cleaning part in the first state and the second state, the distance between the hair action part and the cleaning part is characterized by taking the first state as an example.

[0150] In order to prevent hair accumulation and affect the cleaning effect of the roller brush, in some embodiments, the hair action portion and the cleaning portion may overlap. In other words, at a predetermined position, the hair action portion and the cleaning portion may interfere with each other, or there is no spacing between the hair action portion and the cleaning portion or the spacing is a negative value. For example, the projections of the hair action portion and the cleaning portion at least partially overlap in a certain direction; wherein the certain direction can be selected as the extension direction of the hair action portion or the cleaning portion, for example.

[0151] Considering that the roller brush is rotatable, that is, the cleaning part is rotatable, the position of the cleaning part is constantly changing in the circumferential direction, while the hair action part is usually stationary, so the predetermined position here can be, for example, the setting position of the hair action part or the position when the cleaning part just contacts the hair action part.

[0152] For ease of understanding, taking the cleaning portion including a wool strip as an example, when the wool strip reaches the above-mentioned predetermined position, the hair action portion at least partially overlaps with the wool strip.

[0153] In order to characterize the degree of non-overlap between the hair action portion and the cleaning portion, the distance between the hair action portion and the cleaning portion can be used for characterization. In some embodiments, the distance between the hair action portion and the cleaning portion is less than 0 and greater than or equal to a set threshold; wherein the set threshold is used to characterize the maximum degree of overlap between the hair action portion and the cleaning portion; wherein the set threshold is determined according to the smaller of the heights of the hair action portion or the cleaning portion, for example, the set threshold is selected within the range of the height of the smaller of the heights of the hair action portion or the cleaning portion.

[0154] In some embodiments, the threshold value is set to a value within -10 mm, that is, the overlap amount M between the hair action portion and the cleaning portion is 0-10 mm.

[0155] Considering that the hair on the roller brush may accumulate as the work progresses, in order to reduce the wear of the hair action part and the cleaning part and increase the service life of both, in some embodiments, the hair action part and the cleaning part may not overlap; in other words, at a predetermined position, the hair action part and the cleaning part do not interfere with each other, or there is a gap between the hair action part and the cleaning part, and the hair action part starts to peel off the hair on the cleaning part when the hair on the cleaning part accumulates to a certain extent; it should be pointed out that the degree of hair accumulation can be set according to actual cleaning requirements (such as the cleaning efficiency of the roller brush, the hair removal efficiency of the hair action part), etc.

[0156] In order to characterize the degree of non-overlap between the hair action portion and the cleaning portion, it can be characterized by the distance between the hair action portion and the cleaning portion. In some embodiments, the distance between the hair action portion and the cleaning portion is greater than 0 and less than or equal to a preset threshold, wherein the preset threshold is used to characterize the degree to which hair accumulation is allowed; optionally, the preset threshold is any value selected within 5 mm; further, the preset threshold is selected within 3 mm, for example, the preset threshold ranges from 1 mm to 2 mm; preferably, the preset threshold is set to 1.2-1.8 mm.

[0157] In order to reduce the wear of the hair action part and the cleaning part, improve the service life of both, and prevent hair accumulation from affecting the cleaning effect of the roller brush, in some embodiments, the distance between the free end of the cleaning part (the end away from the brush roller) and the free end of the cleaning part (the end facing the brush roller) is equal to 0.

[0158] Considering the different types of roller brushes or other functional parts that may be provided on the roller brush, the height constraint of the hair action part in the extension direction can also be characterized by comparison with other functional parts or comparison with different cleaning parts on the roller brush;

[0159] For example, when the roller brush has different cleaning parts, such as the cleaning part includes a bristle strip and a rubber strip, the roller brush can be called a rubber bristle brush; at this time, the height constraint of the hair action part can be characterized by comparing the distance with the rubber strip. In some embodiments, the distance between the hair action part and the bristle strip is smaller than the distance between the hair action part and the rubber strip.

[0160] For example, when the roller brush is also provided with a cutting blade for cutting hair, the roller brush can be called a hair cutting roller brush; at this time, the height constraint of the hair action part can be characterized by comparing the distance with the cutting blade. In some embodiments, the distance between the hair action part and the cleaning part is smaller than the distance from the hair action part to the cutting blade.

[0161] It can be understood that when the cleaning portion includes a bristle strip, the distance between the hair action portion and the bristle strip is smaller than the distance between the hair action portion and the cutting blade.

[0162] Considering that the hair should be able to be sucked away in the second state, in order to improve the hair cleaning effect, the setting position of the hair cleaning device or the hair action part can be restricted.

[0163] Taking into account that the hair is sucked away through the dust inlet and leaves the roller brush chamber, the hair cleaning device or the hair action part should be arranged close to the dust inlet. In order to improve the efficiency of hair suction, the closer the hair cleaning device or the hair action part is to the dust inlet, the better.

[0164] In some embodiments, the hair action part is arranged in a preset range Z close to the dust inlet. The preset range Z can be characterized by a distance h between the hair action part and the dust inlet.

[0165] In some embodiments, the value range of h is 0-20 mm.

[0166] In some embodiments, the roller brush assembly includes a first roller brush 1001 and a second roller brush 1002. Along the forward direction of the cleaning robot, the first roller brush (front roller brush) and the second roller brush (rear roller brush) are arranged in the roller brush cavity in sequence front and back.

[0167] In some embodiments, the first roller brush and the second roller brush rotate towards each other, for example, the first roller brush rotates counterclockwise and the second roller brush rotates clockwise, so that the dust can flow into the air duct toward the dust inlet between the two roller brushes along the rotation direction of the roller brushes.

[0168] In some embodiments, when the roller brush assembly includes two roller brushes, at least one of the two roller brushes is equipped with a hair cleaning device.

[0169] Furthermore, in the case where the roller brush assembly includes two roller brushes, a hair cleaning device is provided at the preset positions corresponding to the two roller brushes to clean the hair of the first roller brush and the second roller brush respectively.

[0170] For example, for the front roller brush, along the forward direction of the cleaning robot, the hair cleaning device cooperating with the front roller brush can be arranged on the side of the front roller brush close to the dust inlet; for the rear roller brush, along the forward direction of the cleaning robot, the hair cleaning device cooperating with the rear roller brush is located on the side of the rear roller brush close to the dust inlet.

[0171] In some embodiments, the dust inlet is arranged between the front and rear roller brushes. In this case, the side of the front roller brush close to the dust inlet refers to the rear side of the front roller brush; the side of the rear roller brush close to the dust inlet refers to the front side of the rear roller brush.

[0172] In order to take into account the cleaning of different types of floors (such as hard floors and soft floors), in some embodiments, the first roller brush adopts a rubber brush and the second roller brush adopts a bristle brush, wherein the bristle brush includes a pure bristle brush and a rubber bristle brush; further, the second roller brush adopts a rubber bristle brush including a bristle strip 1003 and a rubber strip 1004.

[0173] The roller brush assembly uses a front rubber brush and a rear bristle brush to clean different types of floors.

[0174] Furthermore, considering that the hair strips on the brush are more likely to accumulate hair than the rubber strips, in some embodiments, the brush is equipped with a hair cleaning device, that is, the hair cleaning device is arranged at the corresponding position of the roller brush cavity and the rear roller brush. The front roller brush (rubber brush) may not be equipped with a hair cleaning device.

[0175] The bristle brush (rear roller brush) is equipped with a hair cleaning device, while the rubber brush (front roller brush) is not equipped with a hair cleaning device. In order to prevent the hair cleaned by the rear roller brush by the hair cleaning device from being entangled with the front roller brush, in some embodiments, a baffle 107 is provided between the two roller brushes to block the hair from the rear roller brush and prevent the hair from being rolled onto the front roller brush again.

[0176] In order to improve the hair cleaning effect, on the one hand, the number of hair cleaning devices and / or hair action parts can be improved, and on the other hand, the setting direction of the hair cleaning device can be improved.

[0177] Regarding the first aspect:

[0178] Considering that the cleaning part of the roller brush is rotatable, the cleaning effect of the hair on the cleaning part can be improved by increasing the number of contacts with the hair on the cleaning part;

[0179] In order to increase the number of contacts with the hair in the cleaning part, in some embodiments, multiple hair cleaning devices can be arranged in the circumferential direction of the outer contour of the roller brush (referred to as the circumferential direction), so that each hair cleaning device can clean the cleaning part once, thereby achieving the cleaning effect of the roller brush hair through multiple cleanings.

[0180] Understandably,

[0181] Considering that the hair cleaning device can be set within a preset range close to the dust inlet, multiple hair cleaning devices can be set within the preset range close to the dust inlet, so that each hair cleaning device can act on the hair on the roller brush once. By acting on the hair multiple times, the cleaning effect of the roller brush hair is further improved.

[0182] Considering that the hair cleaning device has a hair action part, in order to improve the hair cleaning effect, the hair cleaning effect can also be improved by increasing the number of the hair action parts.

[0183] For example, a plurality of hair action portions may be provided on the hair cleaning device, and the plurality of hair action portions may be spaced apart along the length direction of the hair cleaning device (or the axial direction of the roller brush).

[0184] Taking into account that the hair action portion can present different shapes, the shape of the hair action portion can also be designed. For example, in some embodiments, the hair action portion can be designed as a bundle structure with multiple hair-like objects, or the hair action portion can be designed as a bundle of comb teeth, and the comb teeth have multiple combing bristles, each of which can act on the roller brush hair once. Through multiple combing actions, the hair cleaning effect is improved.

[0185] It can be understood that when the hair action portion is designed as a comb tooth, the comb tooth can be provided with more than one combing hair in the circumferential direction of its bundle structure, and each combing hair can have a scraping effect on the roller brush hair.

[0186] Further, taking the comb teeth as a hair strip comb (bundle-shaped) as an example, the hair strip comb must have multiple teeth in the circumferential direction.

[0187] Regarding the second aspect:

[0188] Considering that multiple hair cleaning devices can be provided, the setting directions of the multiple hair cleaning devices (for example, the direction of the hair action part toward the roller brush or the extension direction of the hair action part; considering that the direction may change between the first state and the second state, the first state is used here to represent it) can be the same or different; in other words, the multiple hair cleaning devices can have multiple directions.

[0189] It should be pointed out that the setting direction of the hair cleaning device can also be represented by the angle with the axial direction of the roller brush, which will not be elaborated here.

[0190] For example, a plurality of hair cleaning devices are arranged at equal intervals within a distance H close to the dust inlet, and the arrangement directions of the plurality of hair cleaning devices may be different.

[0191] Considering that the hair cleaning device may be provided with a plurality of hair action parts, the arrangement directions of the plurality of hair action parts may be the same or different; in other words, the directions of the plurality of hair action parts may be multiple.

[0192] It should be noted that the setting direction of the hair action part can also be represented by the extension direction of the hair action part, the direction of the hair action part toward the roller brush part, and can also be represented by the angle between the extension direction of the hair action part and the axial direction.

[0193] Taking into account the different shapes of the hair action part itself, for ease of understanding, taking the hair action part as a comb tooth as an example, the comb tooth can be provided with multiple combing hairs in the circumferential direction of its bundle structure, and the directions of the multiple combing hairs are multiple directions.

[0194] Regarding the problem of how to set the length of the hair action portion (along the axial direction of the roller brush), considering that the size of the roller brush is variable, the length constraint of the hair action portion can be characterized by comparing the hair action portion with the effective cleaning length of the roller brush; wherein the effective cleaning length of the roller brush can be characterized by, for example, the projection length of the cleaning portion in the axial direction of the brush roller.

[0195] In view of the fact that the length of the hair action portion may vary between the first state and the second state, the length of the hair action portion is characterized by taking the first state as an example.

[0196] In order to improve the hair cleaning effect, for example, to achieve the cleaning of the hair on the entire roller brush, in some embodiments, the hair action portion should be greater than or equal to the effective cleaning length of the roller brush.

[0197] In some embodiments, when the hair cleaning device is disposed in the roller brush cavity, since the accommodation space of the roller brush cavity is limited, the length of the hair action portion should be less than or equal to the projection length of the roller brush cavity in the axial direction of the roller brush.

[0198] In some embodiments, the ratio of the length of the hair action portion to the effective cleaning length of the roller brush is greater than 0.5, that is, the length of the hair action portion accounts for more than 50% of the effective cleaning length of the roller brush.

[0199] In some embodiments, the ratio of the length of the hair action portion to the effective cleaning length of the roller brush is between 0.7-1.3; further, the ratio of the length of the hair action portion to the effective cleaning length of the roller brush is equal to 0.9-1.1; preferably, the length of the hair action portion to the effective cleaning length of the roller brush is equal to 1.

[0200] In order to facilitate maintenance of the hair action portion, in some embodiments, at least the hair action portion is detachable; further, the hair cleaning device is configured to be detachable to facilitate maintenance of the entire hair cleaning device including the hair action portion.

[0201] The present disclosure provides a cleaning robot, comprising the above-mentioned roller brush assembly, for performing cleaning operations on a surface to be cleaned.

[0202] The cleaning robot provided by the present disclosure has a hair cleaning device arranged on the roller brush assembly, so that when the cleaning robot is cleaning dog hair or hair, the working head such as the roller brush used for cleaning will not be entangled or will be entangled less, thereby improving the cleaning efficiency and service life of the roller brush.

[0203] It should be pointed out that the hair cleaning device can also be applied to cleaning equipment such as a vacuum cleaner with a cleaning working head, and the present disclosure does not limit this.

Claims

1. A cleaning device, provided with a roller brush assembly, characterized in that: The roller brush assembly comprises: at least one roller brush for cleaning the surface to be cleaned; A roller brush cavity, used for accommodating a roller brush; A hair cleaning device, configured to clean the cleaning portion on the roller brush; The hair cleaning device has at least a first state and a second state, wherein the second state is different from the first state.

2. The cleaning device according to claim 1, characterized in that The hair cleaning device comprises a hair action portion, and the hair action portion is deformable.

3. The cleaning device according to claim 2, characterized in that: The force applied to the hair action portion by the roller brush in the first state is smaller than the force applied to the hair action portion by the roller brush in the second state.

4. The cleaning device according to claim 2, characterized in that: The hair action part is a hair strip.

5. The cleaning device according to claim 4, characterized in that The wool strip comprises a bearing surface and a hair bundle arranged on the bearing surface, the hair bundle is provided with a plurality of bristles, the density of the bristles on the hair bundle is 240-720 per centimeter, and the diameter of the bristles is 0.05mm-0.3mm.

6. The cleaning device according to claim 1, characterized in that In the first state and the second state, the distance between the free end of the hair action portion and the center of the roller brush is different, wherein the free end is the closest end of the hair action portion to the roller brush.

7. The cleaning device according to claim 1, characterized in that The hair cleaning device is detachably connected to the roller brush chamber.

8. The cleaning device according to claim 1, characterized in that Also includes at least one dust inlet, the dust inlet is connected to a fan through an air duct, and the fan is configured to provide negative pressure; At least one of the hair action parts is arranged in a preset range close to the dust inlet, and the preset range is characterized by the distance between the hair action part and the dust inlet, and the preset range is 0-20mm.

9. The cleaning device according to claim 1, characterized in that The ratio of the length of the hair action portion to the effective cleaning length of the roller brush is greater than a preset ratio, and the preset ratio is 0.

5.

10. The cleaning device according to claim 1, characterized in that The cleaning device is a cleaning robot.

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