Cleaning assembly and cleaning robot

Abstract

The utility model discloses a cleaning assembly and a cleaning robot, the cleaning assembly comprises: a housing having a rolling brush cavity for accommodating a rolling brush, one side of the rolling brush cavity being connected with a dust suction port; the first comb tooth group comprises a plurality of first comb teeth, and the first comb teeth are arranged on the inner wall of the rolling brush cavity at intervals in the length direction of the rolling brush cavity; the second comb tooth group comprises a plurality of second comb teeth, the second comb teeth are arranged on the inner wall of the rolling brush cavity at intervals in the length direction of the rolling brush cavity, and the second comb teeth and the first comb teeth are distributed in a staggered mode in the length direction of the rolling brush cavity; the rolling brush is rotatably installed in the rolling brush cavity and provided with bristles, the bristles can interfere with the first comb tooth set and the second comb tooth set in the rotating process of the rolling brush, and the first comb tooth set and the second comb tooth set are used for being matched with a dust collection fan communicated with the dust collection opening to remove entanglement on the rolling brush.

Description

Technical Field

[0001] The utility model belongs to the technical field related to cleaning equipment, and specifically relates to a cleaning component and a cleaning robot. Background Art

[0002] With the rapid development of science and technology and the continuous improvement of people's living standards, various cleaning devices have entered people's lives, such as handheld cleaning devices such as vacuum cleaners and mite removers, as well as cleaning robots such as sweeping robots, sweeping and mopping robots, and floor scrubbing robots. These cleaning devices are usually equipped with cleaning components, which can usually be divided into dry cleaning components and wet cleaning components. The dry cleaning component usually has a dust collection component and a roller brush component. The dust collection component and the roller brush component can complete sweeping, dust collection and other tasks.

[0003] Since the roller brush can easily get entangled with hair, animal hair and other entanglements during its rotation, these entanglements need to be cleaned by the user, which brings great inconvenience to the user and seriously affects the user experience. Existing hair cutting and hair removal technologies are often less effective in removing entanglements such as hair and fur. For example, a Chinese patent with publication number CN112956945B discloses a hair removal tooth assembly, which includes two sets of comb teeth. However, this double comb tooth structure is more likely to cause hair clusters to get stuck on the comb teeth, or the hair on the roller brush cannot be removed because the comb teeth have a small force on the hair clusters. Utility Model Content

[0004] The main purpose of the utility model is to provide a cleaning component and a cleaning robot to improve the effect of removing objects entangled in a roller brush, especially to improve the effect of removing objects such as hair clusters, thereby improving the user experience.

[0005] The utility model provides a cleaning component, comprising:

[0006] The housing has a roller brush cavity for accommodating a roller brush, and one side of the roller brush cavity is connected to a dust suction port;

[0007] A first comb tooth group, comprising a plurality of first comb teeth, wherein the plurality of first comb teeth are arranged on the inner wall of the rolling brush cavity at intervals along the length direction of the rolling brush cavity, the first comb tooth group is located at one side of the dust suction port, and a distance between two adjacent first comb teeth is greater than 5 mm and less than 10 mm;

[0008] The second comb tooth group includes a plurality of second comb teeth, wherein the plurality of second comb teeth are arranged on the inner wall of the roller brush cavity at intervals along the length direction of the roller brush cavity, the second comb tooth group is located between the first comb tooth group and the dust suction port, and the distance between the top ends of two adjacent second comb teeth is greater than 5 mm and less than 11 mm.

[0009] In the length direction of the roller brush cavity, a plurality of the second comb teeth and a plurality of the first comb teeth are staggered, a distance between the top of the second comb teeth and the top of the first comb teeth closest to the second comb teeth is greater than 11 mm and less than 30 mm, and a shortest distance between the second comb teeth group and the dust suction port is greater than or equal to 0 and less than 30 mm;

[0010] A roller brush is rotatably installed in the roller brush cavity, and the roller brush has bristles. During the rotation of the roller brush, the bristles can interfere with the first comb tooth group and the second comb tooth group. The first comb tooth group and the second comb tooth group are used to cooperate with the dust suction fan connected to the dust suction port to remove entanglements on the roller brush.

[0011] According to another aspect of the present invention, a cleaning robot is provided, including a robot body, a control unit, and a driving unit, wherein the robot body is installed with the above-mentioned cleaning assembly.

[0012] In the current household cleaning environment, the hair clusters formed by entanglement, mutual adsorption and aggregation, the hair removal teeth in the prior art are often unable to comb such entanglements such as hair clusters between the comb teeth because the tooth spacing is too narrow, and even entangled on the comb teeth to prevent the rotation of the roller brush. However, using the embodiment of the cleaning component described in the first aspect of the utility model, since the spacing between adjacent first comb teeth and the spacing between adjacent second comb teeth are both greater than 5 mm, this spacing is usually greater than the width of the hair cluster, the hair cluster can be more effectively combed between the comb teeth. Since there is a certain spacing between the first comb tooth group and the second comb tooth group, and both can comb the entanglements, during the rotation of the roller brush, the entanglements on the roller brush can be combed at two places, and the entanglements can be more effectively combed between the comb teeth of the two groups of comb teeth. Further, since the spacing between adjacent first comb teeth is less than 10 mm and the spacing between adjacent second comb teeth is less than 11 mm, it can be ensured that the first comb teeth and the second comb teeth both have a certain friction contact with the entanglements, and since the friction contact area between the two groups of comb teeth and the entanglements is larger, the friction force of the comb teeth on the entanglements can be increased. At the same time, since the first comb teeth and the second comb teeth are staggered, the points of application of the first comb teeth on the winding and the points of application of the second comb teeth on the winding are offset in the length direction of the roller brush chamber, resulting in the first comb teeth and the second comb teeth also generating opposite stresses on the winding in the length direction, which can further increase the friction of the two groups of comb teeth on the winding. And since the distance between the top of the second comb teeth and the top of the first comb teeth closest to the second comb teeth is greater than 11 mm and less than 30 mm, the opposite stress can be made as large as possible, thereby increasing the friction of the two types of comb teeth on the winding. Furthermore, since the shortest distance between the second comb teeth group and the suction port is greater than or equal to 0 and less than 30 mm, the suction force on the windings combed between the comb teeth can be increased as much as possible without blocking the suction port and affecting the suction effect. Under the action of the suction force, the friction force of the first comb teeth and the second comb teeth on the entangled object and the reverse stress, the possibility of separating the entangled object from the roller brush can be effectively improved. Due to the above-mentioned parameter settings, the above-mentioned forces can be made as large as possible, which can further increase the possibility of separating the entangled object and improve the effect of removing the entangled object. It will not affect the suction of the entangled object and other garbage by the suction port, which can effectively improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a partial three-dimensional structural schematic diagram of a cleaning component provided by an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of a three-dimensional structure cutaway of a cleaning component provided by an embodiment of the utility model;

[0016] Figure 3 It is a partial planar structural schematic diagram of a cleaning component provided by an embodiment of the utility model;

[0017] Figure 4 It is a partial side cross-sectional view of a cleaning component provided by an embodiment of the utility model;

[0018] Figure 5 It is a partial enlarged view of a cleaning component provided by an embodiment of the utility model;

[0019] Figure 6 This is a schematic diagram of force analysis of a hair cluster in a hair removal scenario provided by an embodiment of the utility model;

[0020] Figure 7 This is a structural schematic diagram of a cleaning robot provided by an embodiment of the utility model in a state where a roller brush is not installed;

[0021] Figure 8 This is a structural schematic diagram of a cleaning robot provided by an embodiment of the utility model;

[0022] Fig. 9 This is a curve diagram of the corresponding relationship between the comb tooth spacing and the hair retention rate obtained through actual testing provided by an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1-housing; 2-roller brush chamber; 3-dust suction port; 4-first comb tooth group; 41-first comb tooth; 5-second comb tooth group;

[0025] 51-second comb teeth; 6-roller brush; 61-bristles; 7-robot body; 8-driving wheel;

[0026] 9-Rubber dish. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0030] Figure 1 It is a partial three-dimensional structural schematic diagram of a cleaning component provided by an embodiment of the utility model. Figure 2 It is a schematic cross-sectional view of a three-dimensional structure of a cleaning component provided by an embodiment of the utility model. Figure 3 It is a partial planar structural diagram of a cleaning component provided by an embodiment of the utility model. The cleaning component can be applied to cleaning equipment, including but not limited to cleaning robots, vacuum cleaners and other equipment. The implementation method applied to the cleaning robot is that it can be set at the bottom of the cleaning robot. When the cleaning robot is cleaning the floor, the roller brush in the cleaning component can rotate and sweep the floor. The dust suction fan connected to the cleaning component can form a negative pressure, so that the dirt on the floor can be sucked through the dust suction port on the cleaning component. Of course, other functional units can also be provided on the cleaning robot, which will not be described here one by one. Specifically, Figures 1 to 3 As shown, the cleaning assembly may include:

[0031] The housing 1 has a roller brush chamber 2 for accommodating a roller brush, and one side of the roller brush chamber 2 is connected to a dust suction port 3.

[0032] The shape and size of the roller brush chamber 2 match the roller brush, the rotation axis direction of the roller brush is roughly the same as the length direction of the roller brush chamber, and the two ends of the roller brush 6 can be rotatably connected to the two ends of the roller brush chamber 2, or only one end can be rotatably connected to one end of the roller brush chamber 2, and the other end is a free end. The roller brush 6 can rotate at a specific speed along its circumference under the drive of the motor, and can sweep the dirt on the cleaning surface to the dust suction port 3.

[0033] In this example, if Figures 1 to 3 As shown, the edge of the dust suction port 3 can be connected to the roller brush chamber 2, and is arranged on one side of the roller brush chamber 2. The dust suction port 3 can be connected to a dust suction fan through a dust suction air duct. When the dust suction fan is working, negative pressure can be formed at the dust suction port, and the garbage under the roller brush chamber and the hair and other garbage detached from the roller brush can be sucked into the dust box or dust bag of the cleaning device through the dust suction port.

[0034] Among them, in some embodiments of the present invention, the edge of the dust suction port 3 can be flexible, and the dust suction port 3 can be flexibly connected to the roller brush chamber 2 through the flexible edge, and the roller brush chamber 2 can move relative to the dust suction port 3. Of course, in other embodiments of the present invention, if the roller brush chamber does not need to be able to move relative to the dust suction port, the edge of the dust suction port can also be rigid, and the present invention does not limit this.

[0035] The first comb tooth group 4 includes a plurality of first comb teeth 41, which are arranged on the inner wall of the roller brush cavity 2 at intervals along the length direction of the roller brush cavity 2. The first comb tooth group 4 is located on one side of the dust suction port 3, and the distance between two adjacent first comb teeth 41 is greater than 5 mm and less than 10 mm.

[0036] The first comb teeth group 4 is usually arranged in the roller brush cavity, located above the dust suction port 3, and its arrangement direction is roughly parallel to the length direction of the dust suction port 3.

[0037] The plurality of first comb teeth 41 may be arranged at equal intervals or at unequal intervals. However, the intervals between adjacent first comb teeth 41 must be kept within a range greater than 5 mm and less than 10 mm, such as 6 mm, 8 mm, 9 mm, 8.1 mm, 8.5 mm, etc., but not exceeding this range. In current cleaning scenarios, especially in home cleaning environments, due to people's pursuit of fashion, many hairs are long and curly, which are prone to entanglement, and many long hairs are dyed and permed, and the hairs are often relatively dry, which easily leads to the hairs being adsorbed and aggregated to each other, and forming entanglements such as hair clusters due to entanglement, adsorption and aggregation. Hair clusters are usually thicker, and if the interval between the first comb teeth is too small, the hair clusters cannot be combed between the comb teeth, which may cause the hair clusters to be squeezed and entangled on the comb teeth, and in severe cases, the roller brush may stop rotating. Therefore, the interval between the first comb teeth is greater than 5 mm, which is usually greater than the width of the hair clusters, so that the hair clusters can be combed between the comb teeth as much as possible, so as to further separate the hair clusters from the roller brush. However, since the hair clusters are relatively tough and static electricity is generated when they are dry, which increases the adsorption force, if the spacing between the first comb teeth is too large, the friction force on the hair clusters may be too small, and the hair clusters cannot be separated from the roller brush. By ensuring that the spacing between the first comb teeth is less than 10 mm, the friction force of the comb teeth on both sides of the hair clusters can be increased as much as possible. Combined with the dragging force of the comb teeth, the possibility of separating the hair clusters from the roller brush can be increased, thereby improving the hair removal effect.

[0038] Figure 5 This is a partial enlarged view of a cleaning component provided by an embodiment of the utility model. Figure 5 As shown, when the thickness of the first comb teeth is inconsistent at the top and bottom, the spacing between adjacent first comb teeth can generally refer to the spacing d1 between the tops of adjacent first comb teeth. Of course, in other embodiments of the utility model, the spacing at the bottom of the comb teeth or the middle spacing can also be used as the spacing between the two.

[0039] The second comb tooth group 5 includes a plurality of second comb teeth 51, which are arranged on the inner wall of the roller brush chamber 2 at intervals along the length direction of the roller brush chamber 2. The second comb tooth group is located between the first comb tooth group and the dust suction port, and the distance between the top ends of two adjacent second comb teeth is greater than 5 mm and less than 11 mm.

[0040] In the length direction of the roller brush cavity, the plurality of second comb teeth and the plurality of first comb teeth are staggered, the distance between the top of the second comb teeth and the top of the first comb teeth closest to the second comb teeth is greater than 11 mm and less than 30 mm, and the shortest distance between the second comb tooth group and the dust suction port is greater than or equal to 0 and less than 30 mm;

[0041] Among them, the second comb tooth group 5 is arranged between the first comb tooth group 4 and the dust suction port 3. During the rotation process, the roller brush can rotate in the direction from the dust suction port 3 to the second comb tooth group 5 and then to the second comb tooth group 5, first passing through the second comb teeth and then passing through the first comb teeth.

[0042] The plurality of second comb teeth 51 may be arranged at equal intervals or at unequal intervals, but the intervals between adjacent second comb teeth 51 must be kept within a range greater than 5 mm and less than 10 mm, such as 6 mm, 8 mm, 9 mm, 8.1 mm, 8.5, 10, 10.5 mm, etc., but not exceeding the above range.

[0043] Among them, similarly, Figure 5 As shown, in the case where the thickness of the second comb teeth is inconsistent, the spacing between adjacent second comb teeth can generally refer to the spacing d2 between the top ends (tooth tips) of adjacent second comb teeth. Of course, in other embodiments of the present invention, the spacing between the bottom ends of the comb teeth or the spacing between the middle ends can also be used as the spacing between the two.

[0044] Similarly, for thicker entanglements such as hair clusters, if the spacing between the second comb teeth is too small, the hair clusters cannot be combed between the comb teeth, which may cause the hair clusters to be squeezed and entangled on the comb teeth, and in severe cases, the roller brush may stop rotating. Therefore, the spacing between the second comb teeth is greater than 5 mm, usually greater than the width of the hair cluster, which can ensure that the hair clusters are combed between the comb teeth as much as possible, so as to further separate the hair clusters from the roller brush. However, due to the high toughness of the hair clusters and the increase in adsorption force caused by static electricity generated by drying, if the spacing between the second comb teeth is too large, the friction force on the hair clusters may be too small, so that the hair clusters cannot be separated from the roller brush. By ensuring that the spacing between the second comb teeth is less than 11 mm, the friction force of the comb teeth on both sides of the hair clusters on the hair clusters can be increased as much as possible. Combined with the dragging force of the comb teeth, the possibility of separating the hair clusters from the roller brush can be further increased, and the hair removal effect can be improved. Combined with the spacing setting of the first comb teeth, the hair clusters can be combed twice and rubbed at two places, which can further improve the effect of removing entanglements.

[0045] Fig. 9 1 is a graph showing the relationship between the spacing between the comb teeth of a single row of comb teeth and the hair retention rate obtained from actual testing in one embodiment of the present invention. Fig. 9 As shown, the hair retention rate is lower when the comb teeth spacing is in the range of 5 mm to 10 mm. Practice has proved that the comb teeth spacing of 5 mm to 10 mm has a better effect of removing entanglements. Correspondingly, in the case of two rows of comb teeth, the spacing of the second comb teeth 51 can be larger than the spacing of the first comb teeth 41, and can be selected to be 11 mm, so that the entanglements can be more easily combed between the comb teeth.

[0046] Further, Figure 6 FIG. 1 is a schematic diagram of force analysis of a hair cluster in a hair removal scenario provided by an embodiment of the present invention. Figure 6 As shown, since the plurality of second comb teeth 51 and the plurality of first comb teeth 41 are staggered, and there is a certain distance between the first comb teeth group 4 and the second comb teeth group 5 in the rotation direction of the roller brush 6, the first comb teeth 41 and the second comb teeth 51 acting on the same winding object are offset in the vertical direction of the rotation direction of the roller brush, which can make the winding object subject to two opposite stresses F3 and F4 in the vertical direction. The stress can make the friction F1 and F2 between the winding object and the first comb teeth 41 and the second comb teeth 51 larger. If the distance between the first comb teeth and the second comb teeth is too small, the offset of the force point of the winding object will be smaller. If the distance between the first comb teeth and the second comb teeth is too large, since the winding object is arc-shaped, the bending between the force points of the winding object is too large, and the above-mentioned two opposite stresses cannot be formed. Therefore, the distance between the top of the second comb tooth in the utility model and the top of the first comb tooth closest to the second comb tooth is greater than 11 mm and less than 30 mm, so that the entangled object can be subjected to greater reverse stress in the direction perpendicular to the rotation direction of the roller brush, which can increase the friction force F1 and F2 of the comb teeth on the entangled object, and the stress F3 and F4 itself can also produce the effect of making the entangled object separate from the roller brush, which can further enhance the effect of removing the entangled object.

[0047] Figure 4 It is a partial side cross-sectional view of a cleaning component provided by an embodiment of the utility model. Figure 5 This is a partial enlarged view of a cleaning component provided by an embodiment of the utility model. Figure 4 , Figure 5 As shown, the distance between the top of the second comb tooth and the top of the first comb tooth closest to the second comb tooth is shown as d3 in the figure.

[0048] like Figure 1As shown, the shortest distance between the second comb teeth group 5 and the dust suction port 3 may refer to the distance between the tip of the second comb teeth located within the length range of the dust suction port 3 and the edge of the dust suction port 3, or may be the vertical distance from the dust suction port 3. Of course, in other embodiments of the utility model, the shortest distance may also be the distance between the root of the second comb teeth and the edge of the dust suction port 3, or the vertical distance from the dust suction port 3. Figure 5 The d5 shown is the shortest distance between the second comb tooth set 5 and the dust suction port 3 in one embodiment of the utility model.

[0049] Since the closer the position in the roller brush cavity is to the suction port 3, the greater the suction force is, in the embodiment of the utility model, the shortest distance between the second comb tooth group and the suction port is set to be less than 30 mm, which can increase the suction force of the comb teeth near the assisting point of the entanglement as much as possible, and setting it to be greater than or equal to 0 can ensure that the suction force is as large as possible while not blocking the suction port and not affecting the normal vacuuming work. It can further improve the effect of removing entanglements without reducing the effect of normal work, thereby improving the user experience.

[0050] Roller brush 6( Figure 3 It is shown in Figure 1 , Figure 2 The roller brush 6 is rotatably mounted in the roller brush chamber 2, and the roller brush has bristles 61. During the rotation of the roller brush 6, the bristles 61 can interfere with the first comb tooth group 4 and the second comb tooth group 5. The first comb tooth group 4 and the second comb tooth group 5 are used to cooperate with a dust suction fan (not shown) connected to the dust suction port 3 to remove entanglements on the roller brush 6. The entanglements include hair clusters formed by human hair or animal hair.

[0051] In summary, using the cleaning component of the above embodiment, since the spacing between adjacent first comb teeth and the spacing between adjacent second comb teeth are both greater than 5 mm, and this spacing is usually greater than the width of the hair cluster, the hair cluster can be more effectively combed between the comb teeth. And since there is a certain spacing between the first comb tooth group and the second comb tooth group, and both can comb the entangled material, during the rotation of the roller brush, the entangled material on the roller brush can be combed in two places, and the entangled material can be more effectively combed between the comb teeth of the two groups of comb teeth. Furthermore, since the spacing between adjacent first comb teeth is less than 10 mm, and the spacing between adjacent second comb teeth is less than 11 mm, it can be ensured that the first comb teeth and the second comb teeth both have a certain frictional contact with the entangled material, and since the frictional contact area between the two groups of comb teeth and the entangled material is larger, the friction force of the comb teeth on the entangled material can be increased. Figure 6As shown, the first comb teeth 41 can generate friction F1, and the second comb teeth 51 can generate friction F2. At the same time, since the first comb teeth 41 and the second comb teeth 51 are staggered, the first comb teeth and the second comb teeth are offset in the length direction of the rolling brush chamber, resulting in the first comb teeth and the second comb teeth also generating opposite stresses F2 and F3 in the length direction on the winding, which can further increase the friction F1 and F2 of the two groups of comb teeth on the winding. And since the top of the second comb teeth is greater than 11 mm and less than 30 mm from the top of the first comb teeth closest to the second comb teeth, the opposite stress can be made as large as possible, thereby increasing the friction of the two comb teeth on the winding (too short offset is not enough, too long produces an arc). Furthermore, since the shortest distance between the second comb teeth group and the dust suction port is greater than or equal to 0 and less than 30 mm, the suction force F5 on the winding combed between the comb teeth can be increased as much as possible without blocking the dust suction port and affecting the dust suction effect. Under the combined effect of the suction force F5, the friction forces F1 and F2 of the first and second comb teeth on the entangled objects, and the reverse stresses F3 and F4, the possibility of detaching the entangled objects from the roller brush can be increased as much as possible. Due to the above-mentioned parameter settings, the above-mentioned F1, F2, F3, F4, and F5 can be made as large as possible, which can further increase the possibility of detaching the entangled objects and the effect of removing the entangled objects. It will not affect the suction of entangled objects and other garbage by the suction port, and can effectively improve the user experience.

[0052] In one embodiment of the utility model, in the working state of removing the winding, the rotation speed of the roller brush 6 is greater than 1100 rpm and less than 1500 rpm. Specifically, the rotation speed of the roller brush 6 can be any rotation speed value such as 1200 rpm, 1260 rpm, 1320 rpm, 1400 rpm, etc.

[0053] The working state of removing entanglements can usually be a state where the cleaning component is entangled by entanglements and the cleaning component is working. The working state of the cleaning component can be only the work of removing entanglements, such as when the cleaning device is moved away from the cleaning surface, the roller brush rotates and cooperates with the comb teeth to remove entanglements. It can also be the work of cleaning and removing entanglements at the same time. In short, as long as the roller brush is entangled by entanglements such as hair clusters and the roller brush is rotating, it can be regarded as the working state of removing entanglements.

[0054] The roller brush speed of traditional cleaning components (such as cleaning robots) is usually around 1000 rpm, while in this example, the roller brush speed is set to be greater than 1100 rpm, which can not only increase the impact force of the comb teeth on the entangled objects, especially the hair clusters, but also more concentratedly comb the hair clusters between the comb teeth, so as to further utilize the friction, stress of the comb teeth, and the suction force of the dust suction port to separate them from the roller brush, and this impact force can also produce the effect of making the hair clusters separate from the roller brush. The roller brush speed will not be reduced to below the normal working speed due to the resistance generated by the interference between the comb teeth and the roller brush bristles. The roller brush speed is less than 1500 rpm. On the one hand, it will not generate dust due to excessive speed and affect normal work. In the hair removal state, the roller brush rotates at a speed within the above range, which can improve the hair removal effect while not affecting the normal cleaning effect of the cleaning component.

[0055] In one embodiment of the utility model, when the cleaning component is in a working state not for removing entanglements, the rotation speed of the roller brush is less than or equal to the rotation speed of the roller brush in a working state for removing obstacles.

[0056] The non-obstacle removal working state refers to a state in which the roller brush is not entangled by obstacles and is rotating, such as a state in which the cleaning robot is cleaning the floor but is not entangled by entanglements.

[0057] In this case, when the roller brush is not entangled by obstacles, the roller brush speed is reduced to a speed lower than the roller brush speed in the obstacle removal working state, so as to avoid wasting energy due to excessive speed. Of course, in some other embodiments, because adjusting the speed requires consuming certain control resources, if the normal working speed of the cleaning device itself is close to the speed of removing the entanglement, the energy wasted is limited, but the control resources can be greatly saved. In this case, it is also possible to choose to keep the speed the same in the non-entanglement removal working state as in the entanglement removal working state.

[0058] Specifically applied to cleaning robots, AI can detect the position of hair, and when it reaches that position, it is judged as an obstacle. The hair can also be detected by the roller brush speed or other sensors. If the roller brush speed is low, the roller brush speed is adjusted to this range. If it is also within this range, there is no need to change it. The roller brush speed can also be directly kept at a fixed value within this range, which can save the detection of whether there is entanglement, save the control of the speed, and thus save control resources.

[0059] In an embodiment of the utility model, in the working state of removing entanglements, the rotation direction of the roller brush is from the second comb tooth group to the first comb tooth group. Further, the top of the second comb tooth has a tooth tip, which is generally facing the direction opposite to the rotation direction of the roller brush.

[0060] Due to the setting of the rotation direction of the roller brush, the entangled material can pass through the second comb tooth group first and then the first comb tooth group, so that the entangled material can be combed twice. Furthermore, since the top of the second comb tooth has a tooth tip, the second comb tooth first contacts the entangled material, which can avoid the entangled material from being stuck at the top, allowing the entangled material to enter between the comb teeth more smoothly, thereby improving the combing effect.

[0061] Furthermore, the bristles of the roller brush are inclined toward the rotation direction of the roller brush, forming an angle greater than 0 degrees with the radial direction of the roller brush body. Since the bristles are elastic and inclined toward the rotation direction of the roller brush, the elastic force generated by the deformation of the bristles when interfering with the comb teeth can be used to further increase the impact force between the comb teeth and the entangled object, thereby improving the combing effect and the hair removal effect.

[0062] like Figure 1 As shown, in some embodiments of the present invention, the thickness of the second comb teeth 51 gradually decreases from the bottom to the top. It can be seen that the top of the second comb teeth 51 is relatively sharp, and the thickness becomes thicker as it goes down, so that a certain slope can be formed, so that entangled objects such as hair clusters slide along this slope to between the comb teeth, and as the thickness increases, the spacing between the comb teeth also decreases, and the hair clusters slide to the bottom. The force squeezed by the comb teeth twice is greater, so the friction force generated is also greater. The effect of removing entangled objects can be improved.

[0063] Similarly, if Figure 1 , Figure 2 As shown, the width of the first comb teeth 41 gradually decreases from the bottom to the top, and the first comb teeth 41 is approximately a trapezoid, which can reduce the contact surface at the top to prevent the winding material from being stuck at the top, and better receive the winding material between the comb teeth. After the winding material slides down to the bottom, the increase in width can increase the contact area between the comb teeth and the winding material, thereby increasing the friction between the comb teeth and the winding material. The thickness of the first comb teeth gradually decreases from the bottom to the top, so that the winding material can slide down to the bottom of the comb teeth more easily.

[0064] In one embodiment of the utility model, the height of the second comb teeth 51 is greater than 5 mm and less than 12 mm. In this way, it can ensure that the second comb teeth 51 have more interference with the bristles of the roller brush 6, and increase the friction area with the entangled object to increase the friction force. It can also avoid interference with the body of the roller brush due to excessive height, and avoid interference with the dust collection of the dust suction port.

[0065] Correspondingly, in this example, the width of the first comb teeth 41 is greater than 5 mm and less than 10 mm, and the height of the first comb teeth 41 is greater than 3 mm and less than 8 mm. Similarly, it can ensure that the first comb teeth 41 and the bristles of the roller brush 6 have more interference, which can increase the friction area with the entangled object and thus increase the friction force. It can also avoid interference with the roller brush body due to excessive height, and avoid interference with dust collection at the dust suction port.

[0066] In some embodiments of the present invention, the spacing between the top ends of adjacent second comb teeth 51 is 3 to 10 times the thickness of the top ends of the second comb teeth 51. Correspondingly, the spacing between the top ends of adjacent first comb teeth 41 is 3 to 8 times the thickness of the top ends of the first comb teeth 41. This design with a larger spacing between comb teeth can reduce the possibility of the winding being blocked at the top ends of the comb teeth, comb the winding between the comb teeth, and avoid the reduction of friction on the winding due to too large spacing.

[0067] Furthermore, the spacing between the top ends of the adjacent second comb teeth 51 is greater than the spacing between the top ends of the adjacent first comb teeth 41. In this way, the larger spacing between the top ends of the second comb teeth 51 can better comb the tangled objects between the comb teeth, while the smaller spacing between the first comb teeth 41 can further squeeze the tangled objects combed by the second comb teeth 51, generate greater friction, and thus improve the cleaning effect of the tangled objects.

[0068] In one embodiment of the present invention, in the length direction of the rolling brush chamber, the distance between the top ends of the second comb tooth 51 and the first comb tooth 41 which is the second closest thereto is greater than 5 mm and less than 8 mm.

[0069] like Figure 5 As shown, in the length direction of the rolling brush chamber, the distance between the top ends of the second comb tooth 51 and the first comb tooth 41 which is the second closest to it is as shown in FIG. Figure 5 As shown in d4 in the figure. In this way, the closer lateral distance between the two comb teeth can be used to make the friction force of the comb teeth on the winding object greater. At the same time, the winding object will not be blocked due to the small lateral distance.

[0070] In one embodiment of the utility model, the suction port is connected to a dust suction fan, and the suction force generated by the dust suction fan is greater than 10000 Pa. The suction force of a traditional sweeping robot is usually 9000 Pa. By setting a fan with a suction force greater than 10000 Pa, it is not only possible to suck the garbage on the ground, but also to increase the suction force on the entangled objects, thereby increasing the combined force of the above-mentioned forces, and further increasing the possibility of the entangled objects being detached.

[0071] In one embodiment of the utility model, in a non-entanglement removal working state, the rotation direction of the roller brush is the same as the rotation direction of the roller brush in the entanglement removal working state, so as to avoid wasting control resources due to adjusting the rotation direction of the roller brush in different working states.

[0072] In an embodiment of the present invention, the number of the second comb teeth in the second comb tooth group is 16-22.

[0073] Correspondingly, the number of the first comb teeth in the first comb teeth group is 18 to 22. Through the above-mentioned design of the number of comb teeth, the actual length of the roller brush can be matched, and the combing and friction effects can be ensured while saving the cost caused by too many comb teeth.

[0074] Based on the cleaning components of the above embodiments, the utility model also provides a cleaning robot. Figure 7 It is a structural schematic diagram of a cleaning robot provided by an embodiment of the utility model in a state where a roller brush is not installed. Figure 8 Schematic diagram of a cleaning robot provided by an embodiment of the utility model. Figure 7 , Figure 8 As shown, the cleaning robot may include a robot body 7, a control unit, and a driving unit, the driving unit having at least two driving wheels 8, the control unit can control the driving unit to realize automatic movement of the robot, the robot body is installed with the cleaning components of the above-mentioned embodiments, and the control unit can control the operation of the cleaning components.

[0075] In one embodiment of the utility model, when the cleaning robot is placed on a cleaning surface, the roller brush can be in interference contact with the cleaning surface, and the cleaning component can float up and down.

[0076] In one embodiment of the utility model, when the cleaning robot is placed on a cleaning surface, the first comb tooth group and the second comb tooth group are fixed above or obliquely above the dust suction port in the roller brush cavity.

[0077] In one embodiment of the utility model, the cleaning robot is further provided with a rag assembly, which is located at the rear of the cleaning assembly.

[0078] like Figure 7 , Figure 8 As shown, in one embodiment of the present invention, the rag assembly includes two rag plates 9 rotatably mounted on the robot body, one of which can automatically swing outward to achieve cleaning of corner areas.

[0079] Since the rag assembly is located behind the cleaning assembly in the forward direction of the cleaning robot, the cleaning assembly can be used to better sweep up entangled objects such as hair clusters and remove them and suck them into the suction port, thereby preventing the hair clusters from being pushed to the corners by the outward-swinging rag plate, making cleaning more inconvenient, and avoiding the user experience being affected by the outward expansion of the rag.

[0080] The wipe assembly includes two rotating wipe discs that can be automatically raised to avoid areas that require dry cleaning.

[0081] For areas that require the rag to be lifted, which are often carpet areas, using a cleaning robot with the above-mentioned cleaning component can more effectively remove hair on the carpet, while reducing the possibility of wet hair entangled in the roller brush wetting the carpet, which can further improve the cleaning experience of the carpet and enhance the user experience.

[0082] In addition, it should be noted that those skilled in the art can clearly understand that the various embodiments of the present application can refer to each other. For example, the design of the cleaning component in the cleaning robot can refer to the description of the aforementioned cleaning component embodiment, and the various embodiments can refer to each other. For the convenience and simplicity of description, the same or corresponding specific working processes in each embodiment can refer to the corresponding process description in other method embodiments of the utility model.

[0083] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the utility model.

Claims

1. A cleaning component, characterized in that: The components include: The housing has a roller brush cavity for accommodating a roller brush, and one side of the roller brush cavity is connected to a dust suction port; A first comb tooth group, comprising a plurality of first comb teeth, wherein the plurality of first comb teeth are arranged on the inner wall of the rolling brush cavity at intervals along the length direction of the rolling brush cavity, the first comb tooth group is located at one side of the dust suction port, and a distance between two adjacent first comb teeth is greater than 5 mm and less than 10 mm; The second comb tooth group includes a plurality of second comb teeth, wherein the plurality of second comb teeth are arranged on the inner wall of the roller brush cavity at intervals along the length direction of the roller brush cavity, the second comb tooth group is located between the first comb tooth group and the dust suction port, and the distance between the top ends of two adjacent second comb teeth is greater than 5 mm and less than 11 mm. In the length direction of the roller brush cavity, a plurality of the second comb teeth and a plurality of the first comb teeth are staggered, a distance between the top of the second comb teeth and the top of the first comb teeth closest to the second comb teeth is greater than 11 mm and less than 30 mm, and a shortest distance between the second comb teeth group and the dust suction port is greater than or equal to 0 and less than 30 mm; A roller brush is rotatably installed in the roller brush cavity, and the roller brush has bristles. During the rotation of the roller brush, the bristles can interfere with the first comb tooth group and the second comb tooth group. The first comb tooth group and the second comb tooth group are used to cooperate with the dust suction fan connected to the dust suction port to remove entanglements on the roller brush.

2. The cleaning assembly according to claim 1, characterized in that: In the working state of removing entanglements, the rotation speed of the roller brush is greater than 1100 rpm and less than 1500 rpm.

3. The cleaning assembly according to claim 1 or 2, characterized in that: In a working state of removing entanglements, the rotation direction of the roller brush is from the second comb tooth group to the first comb tooth group.

4. The cleaning assembly according to claim 3, characterized in that: The top ends of the second comb teeth have tooth tips, and the tooth tips are generally facing in a direction opposite to the rotation direction of the roller brush.

5. The cleaning assembly according to claim 4, characterized in that: The bristles of the roller brush are inclined toward the rotation direction of the roller brush, and form an angle greater than 0 degrees with the radial direction of the roller brush body.

6. The cleaning assembly according to any one of claims 1-2 and 4-5, characterized in that: The thickness of the second comb teeth gradually decreases from the bottom to the top.

7. The cleaning assembly according to any one of claims 1-2 and 4-5, characterized in that: The width of the first comb teeth gradually decreases from the bottom to the top thereof, and the thickness of the first comb teeth gradually decreases from the bottom to the top thereof.

8. The cleaning assembly according to claim 6, characterized in that: The height of the second comb teeth is greater than 5 mm and less than 12 mm.

9. The cleaning assembly according to claim 7, characterized in that: The width of the first comb teeth is greater than 5 mm and less than 10 mm, and the height of the first comb teeth is greater than 3 mm and less than 8 mm.

10. The cleaning assembly according to claim 8, characterized in that The distance between the top ends of adjacent second comb teeth is 3 to 10 times the thickness of the top ends of the second comb teeth.

11. A cleaning assembly according to claim 9, characterized in that: The distance between the top ends of adjacent first comb teeth is 3 to 8 times the thickness of the top ends of the first comb teeth.

12. The cleaning assembly according to any one of claims 1-2, 4-5 and 8-11, characterized in that: The distance between the top ends of adjacent second comb teeth is greater than the distance between the top ends of adjacent first comb teeth.

13. The cleaning assembly according to any one of claims 1-2, 4-5 and 8-11, characterized in that: In the length direction of the roller brush chamber, the distance between the top ends of the second comb tooth and the first comb tooth that is second closest thereto is greater than 5 mm and less than 8 mm.

14. The cleaning assembly according to any one of claims 1-2, 4-5 and 8-11, characterized in that: The dust suction port is connected to a dust suction fan, and the suction force generated by the dust suction fan is greater than 10000 Pa.

15. The cleaning assembly according to claim 2, characterized in that In a working state not for removing entanglements, the rotation speed of the roller brush is less than or equal to the rotation speed of the roller brush in a working state for removing obstacles.

16. The cleaning assembly according to claim 3, characterized in that In a working state where the entanglement is not removed, the rotation direction of the roller brush is the same as the rotation direction of the roller brush in a working state where the entanglement is removed.

17. The cleaning assembly according to claim 3, characterized in that The rotating direction of the roller brush is from the suction port to the second comb tooth group and then to the first comb tooth group.

18. The cleaning assembly according to claim 1, characterized in that The number of the second comb teeth in the second comb tooth group is 16-22.

19. The cleaning assembly according to claim 1, characterized in that The number of the first comb teeth in the first comb teeth group is 18 to 22.

20. The cleaning assembly according to claim 1, characterized in that The entanglements include hair tufts formed by human hair or animal hair.

21. A cleaning robot, characterized in that: The invention comprises a robot body, a control unit and a driving unit, wherein the robot body is equipped with a cleaning component as claimed in any one of claims 1 to 20.

22. The cleaning robot according to claim 21, characterized in that: When the cleaning robot is placed on a cleaning surface, the bristles of the roller brush can come into interference contact with the cleaning surface, and the cleaning component can float up and down.

23. The cleaning robot according to claim 22, characterized in that: When the cleaning robot is placed on a cleaning surface, the first comb tooth group and the second comb tooth group are fixed above or obliquely above the dust suction port in the roller brush chamber.

24. The cleaning robot according to claim 21, characterized in that: The cleaning robot is also provided with a rag assembly, which is located at the rear of the cleaning assembly.

25. The cleaning robot according to claim 24, characterized in that: The rag assembly includes two rotatable rag discs mounted on the robot body, one of which can automatically swing outward to achieve cleaning of corner areas.

26. The cleaning robot according to claim 24, characterized in that: The rag assembly includes two rag plates rotatably mounted on the robot body, and the rag plates can be automatically lifted to avoid areas that require dry cleaning.

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