Driving wheel and cleaning device

Abstract

The present disclosure relates to a driving wheel and a cleaning device, wherein the driving wheel comprises a tire and a support body, the outer side of the tire is a tread, the tread has a drainage groove, the two sides of the drainage groove are two sub-zones of the tread, each of the sub-zones is provided with protrusions and grooves arranged alternately; the support body is arranged on the inner side of the tire, and the support body supports the tire on the inner side; wherein the tread further has a partition, the partition is arranged in the drainage groove, and a gap is formed between the outer wall surface of the partition and the inner wall surface of the drainage groove. The present disclosure solves the problem of insufficient effective water content and effective drainage capacity when the driving wheel walks in a wet environment, and improves the user experience.

Description

Technical Field

[0001] This disclosure relates to the field of cleaning technology, and more particularly to a drive wheel and cleaning equipment. Background Technology

[0002] With the rapid development of technology and people's increasing demands for quality of life, cleaning equipment can help people free their hands from heavy cleaning work. Commonly used cleaning appliances include vacuum cleaners, robot vacuums, and floor scrubbers. Among them, robot vacuums have a high degree of automation and require greater adaptability to the home environment. Current home environments are complex, with obstacles such as thresholds and sliding door tracks that need to be overcome. The obstacle-crossing ability of robot vacuums is related to factors such as chassis ground clearance, overall center of gravity, drive wheel spring tension, drive wheel diameter and width, and tire structure and materials. Compared to dry obstacle crossing, wet obstacle crossing (wet floors, wet cloths, etc.) is more difficult for cleaning equipment such as robot vacuums. In wet environments, the drive wheels have insufficient effective water retention and drainage capabilities, thus requiring higher design standards for the drive wheels. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this disclosure provides a drive wheel and a cleaning device.

[0004] According to a first aspect of the present disclosure, a drive wheel is provided, including a tire and a support body. The outer side of the tire is a tread, the tread having a drainage groove, and the two sides of the drainage groove being two partitions of the tread, each partition having alternately arranged protrusions and grooves. The support body is disposed on the inner side of the tire, and the support body supports the tire on the inner side. The tread also has a partition portion, the partition portion being disposed within the drainage groove, and a gap being formed between the outer wall surface of the partition portion and the inner wall surface of the drainage groove.

[0005] In some possible embodiments, one or more flow guiding structures are provided on the outer wall surface of the partition, and the flow guiding structures extend on the outer wall surface along the radial direction of the tire.

[0006] In some possible embodiments, the surfaces of each of the protrusions of the tread are provided with tread patterns, which are multiple protrusions distributed in an array.

[0007] In some possible embodiments, a plurality of water-blocking parts are provided between the outer wall surface of the partition and the inner wall surface of the drainage channel, and the plurality of water-blocking parts are arranged at intervals.

[0008] In some possible embodiments, the flow guiding structure includes a first flow guiding groove and a second flow guiding groove, wherein the first flow guiding groove is an arc-shaped groove inclined in a first direction, and the second flow guiding groove is an arc-shaped groove inclined in a second direction, wherein the first direction is opposite to the second direction.

[0009] In some possible embodiments, the outer wall surface of the partition includes a top surface and a side surface, the side surface extending from the bottom of the drainage groove to the outer side surface of the tire, and the top surface being parallel to the outer side surface of the tire.

[0010] In some possible embodiments, the width of the drainage channel is between 1 mm and 2.2 mm; and / or, the width of the partition is between 0.5 mm and 1 mm; and / or, the width of the gap is between 0.25 mm and 0.6 mm.

[0011] In some possible embodiments, the gaps on both sides of the partition are symmetrically arranged.

[0012] In some possible embodiments, the top surface of the water-blocking portion is flush with the top surface of the partition portion, and / or the top surface of the water-blocking portion is lower than the top surface of the partition portion, and / or the top surface of the partition portion is flush with the tread of the tire.

[0013] In some possible embodiments, the top surface of the water-blocking part forms a water-guiding surface, which is inclined from the outer wall of the partition to the inner wall of the drainage channel.

[0014] In some possible embodiments, the gap includes a first gap and a second gap, the first gap and the second gap being located on both sides of the partition, wherein the depth of the first gap recessed radially along the tire and the depth of the second gap recessed radially along the tire are the same as the depth of the drainage groove recessed radially along the tire.

[0015] According to a first aspect of the present disclosure, a cleaning device is provided, including a drive wheel as described in any of the embodiments of the first aspect above.

[0016] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: This disclosure provides a drive wheel with a drainage groove provided on the outer side of the tire; the tire also has a partition portion disposed within the drainage groove, and there is a gap between the outer wall surface of the partition portion and the inner wall surface of the drainage groove. This solves the problem of insufficient effective water retention and drainage capacity of the drive wheel when it travels in a wet environment, and improves the user experience.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] Figure 1 This is a schematic diagram of a drive wheel in related technologies.

[0020] Figure 2 This is a schematic diagram of a tire structure for a drive wheel according to an exemplary embodiment.

[0021] Figure 3 This is a schematic diagram of the tire side view structure of a drive wheel according to an exemplary embodiment.

[0022] Figure 4 It is along Figure 3 A schematic diagram of the cross-sectional structure of line AA in the middle.

[0023] Figure 5 This is a schematic diagram illustrating the structure of a cleaning device's drive wheel when it overcomes an obstacle, according to an exemplary embodiment.

[0024] Figure 6 This is an exploded structural diagram of the drive wheel of a cleaning device according to an exemplary embodiment.

[0025] Figure label:

[0026] 1. Drive motor; 2. Drive gear; 3. Driven gear; 5. Wheel; 51. Tire; 52. Support structure; 53. Tread; 6. Drive wheel; 61. Tire; 62. Support body; 611. Drainage channel; 612. Separator; 613. Gap; 614. Protrusion; 615. Groove; 616. Side hole; 617. Flow guide structure; 618. Water barrier;

[0027] 7. Housing; 71. Front housing of the drive wheel; 72. Rear housing of the drive wheel;

[0028] 8. Connecting shaft. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0030] The design of the wheel tire structure in related technologies is generally as follows: Figure 1 As shown, this is a schematic diagram of a tire structure in a related technology. Figure 1The intermediate travel wheel 5 consists of a tire 51 and a wheel shell-type support structure 52. The tire 51 is circular, and its tread 53 is designed with continuously and regularly varying, staggered, convex and concave teeth. A drive gear 2 is coaxially mounted on the output end of the drive motor 1. A driven gear 3 meshes with one side of the drive gear 2. A transmission mechanism is provided between the driven gear 3 and the travel wheel 5, enabling the drive motor 1 to drive the travel wheel 5 to rotate. The tire in this related technology does not consider structural design to facilitate obstacle crossing. Furthermore, the drive wheel suffers from insufficient effective water retention and drainage capacity when traveling in wet environments.

[0031] More specifically, although existing drive tires generally have drainage grooves, the drainage grooves in the current tire treads have a large one-way closed space. This space structure will accumulate a lot of liquid at low and medium speeds. During use, it is easy to store a lot of liquid, which may carry dirt while driving, thus seriously affecting the cleaning effect and driving efficiency.

[0032] To solve the above-mentioned technical problems, this disclosure provides a drive wheel and a cleaning device.

[0033] According to a first aspect of the present disclosure, a drive wheel 6 is provided, including a tire 61 and a support body 62. The outer side of the tire 61 is a tread, and the tread has a drainage groove 611. The two sides of the drainage groove 611 are two sections of the tread, and each section is provided with alternately arranged protrusions 614 and grooves 615. The support body 62 is disposed inside the tire 61, and the support body 62 supports the tire 61 on the inner side. The tread also has a partition 612, which is disposed within the drainage groove 611, and a gap 613 exists between the outer wall of the partition 612 and the inner wall of the drainage groove 611.

[0034] Understandably, in this disclosure, the space of the drainage groove 611 is filled with the partition 612, which can prevent a large amount of water from accumulating and stagnating in the drainage groove 611. Furthermore, the partition 612 can divide the tire tread into left and right sections, preventing water from spreading between the two sections and achieving water separation. Moreover, it avoids the problem of excessive water storage in a wet environment due to the large unidirectional enclosed space of the drainage groove 611, thus preventing tire slippage when the drive wheels are traveling in a wet environment or when crossing obstacles in a wet environment.

[0035] Figure 2 This is a schematic diagram of a tire structure for a drive wheel according to an exemplary embodiment. Figure 3 This is a schematic diagram of the tire side view structure of a drive wheel according to an exemplary embodiment. Figure 4 It is along Figure 3 A schematic diagram of the cross-sectional structure of line AA in the middle. (See diagram below.) Figures 2 to 4As shown, the drive wheel 6 includes a tire 61, and the outer tread of the tire 61 is provided with a drainage groove 611; the tire 61 also has a partition 612, which is disposed in the drainage groove 611, and there is a gap 613 between the outer wall surface of the partition 612 and the inner wall surface of the drainage groove 611.

[0036] In this embodiment, the highest point of the separator 612 is chosen to be the same as the overall outer diameter of the drive wheel 6. This allows the outer surface of the separator 612 to contact the ground simultaneously, effectively separating the ground water and disrupting the continuity of the water film. Furthermore, the separator 612 is positioned at the center of the drive wheel 6 along its axial (or thickness) direction. This means the tire tread can be divided into two sections located on either side of the separator 612. Positioning the separator 612 at the center ensures a balanced configuration of the two sections, guaranteeing symmetry and achieving tire balance during rotation.

[0037] In one specific embodiment, the width of the drainage groove 611 is selected between 1 mm and 2.2 mm, and the width of the partition 612 is selected between 0.5 mm and 1 mm. That is, when the gaps on both sides are symmetrically arranged, the width of the gap on one side is selected between 0.25 mm and 0.6 mm. If the width of the partition 612 is too small, it will affect the strength and wear resistance of the partition 612.

[0038] In this embodiment, the drive wheel 6 is a circular structure commonly used in tires, and the overall width of the drive wheel 6 along the axial direction is between 15-23mm. The wider the tire 61, the larger the contact area, the greater the friction and grip, the smaller the possibility of slipping, and the better the ability to overcome obstacles. However, due to the limitation of the total width of the sweeper body, the drive wheel 6 should not be infinitely wide.

[0039] In one specific embodiment, the diameter of the drive wheel 6 is selected within the range of 65mm-75mm. The larger the diameter of the drive wheel 6, the stronger its obstacle-crossing ability, so a relatively large value is generally chosen. However, when driving on flat ground, increasing the diameter of the drive wheel 6 does not increase the positive force with respect to the ground; instead, it reduces the rolling friction of the drive wheel 6, making it prone to slipping. Therefore, it should not be infinitely large.

[0040] In this embodiment, the tire 61 includes a drainage area and a ground contact area arranged in parallel. A drainage groove 611 is provided on the drainage area, and the drainage groove 611 is arranged around the circumference of the tire 61. In this embodiment, the drainage groove 611 is arranged around the center of the tire tread. A plurality of protrusions 614 are provided at intervals on the ground contact area of ​​the tire 61. The protrusions 614 protrude radially from the tire 61. A water-guiding groove 615 is provided on the inner side of the protrusions 614 away from the tire tread. The plurality of grooves 615 arranged in a dispersed and spaced manner communicate with the drainage groove 611, so that when the drive wheel 6 passes through water and overcomes obstacles in a wet state, the centrifugal force of rotation will throw water out through the grooves 615 and the drainage groove 611.

[0041] The drive wheel 6 has a circular structure design. On the tire tread, there are two sections on both sides of the drainage groove 611. Each section has alternating protrusions 614 and grooves 615. As shown in the figure, the protrusions 614 and grooves 615 in the two sections are also staggered so that the tire tread always has a protrusion 614 in contact with the ground, avoiding the situation of lack of continuous support during rolling.

[0042] The drainage area of ​​the drive wheel 6 is arranged circumferentially along the tread, and the contact area is arranged circumferentially along the tread and located on the outer side of the tread. The drainage groove 611 can accommodate water on the surface of the obstacle when driving in wet environments or when the drive wheel 6 is crossing obstacles in wet conditions, reducing the possibility of water droplets adhering to the outermost end face of the drive wheel 6, and throwing the water backward through the drainage groove 611 by centrifugal force during the rotation of the drive wheel.

[0043] In this embodiment, the protrusion 614 at the crown of the tire 61 is integrally formed with the main body of the tire 61. Both the protrusion 614 and the tire 61 can be made of rubber, combining the good mechanical properties of an elastomer with the comfort of a foam material. The protrusion 614 protrudes radially from the tire 61, and its protrusion height relative to the tire 61 depends on specific design requirements; this disclosure does not impose specific limitations on this. The tire crown of the tire 61 can be a hollow structure, and multiple side holes 616 can be spaced apart on both sides of the tire crown. This facilitates weight reduction, provides greater flexibility on the sides, and facilitates demolding or tool entry during processing. Each side hole 616 can be a pair of L-shaped openings, each extending slightly towards the side of the protrusion 614. Additionally, a radially extending support rib is provided inside the protrusion 614, directly opposite the center of the protrusion 614, to support the contact surface of the protrusion 614.

[0044] The protrusions 614 ensure a continuous contact between the drive wheel and the ground during movement, maintaining good friction and grip. In this embodiment, to achieve better friction and grip, tread patterns are provided on the surface of each protrusion 614. In this embodiment, the tread patterns are selected as multiple rectangular protrusions arranged in an array. These rectangular protrusions are arranged in multiple rows and columns on the surface of the protrusions 614, forming grooves between each other. The grooves can be interconnected to form several parallel and / or intersecting straight grooves. The included angle between any two intersecting straight grooves is 90 degrees, ensuring that wastewater is not widely dispersed to the periphery when cleaning the ground. This divides the dispersed wastewater area into uniform and dispersed small pieces, making the tire tracks difficult to see with the naked eye.

[0045] In this disclosure, by providing a drainage groove 611 on the outer side of the tire 61, and the tire 61 also having a partition 612 disposed within the drainage groove 611, with a gap between the outer wall of the partition 612 and the inner wall of the drainage groove 611, the problem of excessive water storage in a wet environment due to the large unidirectional enclosed space of the drainage groove 611 is solved. The partition 612 separates the drainage groove 611, preventing water accumulation in the drainage groove 611 and avoiding tire slippage when driving the wheel 6 in a wet environment or when crossing obstacles in a wet environment, thus improving the user experience.

[0046] In one specific embodiment, a flow guiding structure 617 is provided on the two sidewalls of the partition 612, extending radially along the outer wall of the tire 61. The main purpose of the flow guiding structure 617 is to divert any water that may be trapped at the bottom of the drainage groove 611 to the tire surface. The flow guiding structure 617 can be understood as having a radial groove on the sidewall of the partition 612, which is inclined in a clockwise or counterclockwise direction. The drive wheel can travel clockwise or counterclockwise. During the travel of the drive wheel, the water accumulated in the drainage groove 611 is discharged radially towards the tire tread using centrifugal force. Of course, the contact between the tire and the ground water can be divided into several stages: water entry, immersion, and water exit. In the water entry stage of the tire tread, this side structure of the flow guiding structure 617 can be considered as reducing drainage and shock waves. The flow guiding structure 617 can reshape the side of the partition 612, reducing the edge length and eliminating complete edges. During the immersion stage, the purpose of the flow guiding structure 617 is to facilitate the convergence of water towards the tread direction, while preventing water from seeping towards the bottom of the tank. During the discharge stage, the purpose of the flow guiding structure 617 is to facilitate the discharge of water from the bottom of the tank towards the tread direction using centrifugal force or gravity.

[0047] The drainage trough 611 is used to contain water from the surface of the obstacle when the drive wheel is wet while crossing it, reducing the possibility of water droplets adhering to the outermost end face of the drive wheel. The partition 612 separates the drainage trough 611 to prevent water accumulation inside it. The guide structure 617 is used to throw water away through the guide structure 617 during the rotation of the drive wheel, thereby discharging the water in the drainage trough 611 outward. In this embodiment, when there is a large amount of water on the ground, the guide structure 617 can enhance the ability of guiding and throwing water through the gaps on both sides (i.e., pushing water out centrifugally).

[0048] In a specific embodiment, the flow guiding structure 617 includes a first flow guiding groove 6171 and a second flow guiding groove 6172. The first flow guiding groove 6171 is an arc-shaped groove inclined in a first direction, and the second flow guiding groove 6172 is an arc-shaped groove inclined in a second direction. It can be understood that the first direction can be considered as a clockwise direction, and the second direction as a counterclockwise direction. The arrangement of these two directions is to ensure that the drive wheel 6 achieves a good flow guiding effect during both the water entry and exit stages in both rotational directions.

[0049] See Figure 4 As shown, the first guide channel 6171 and the second guide channel 6172 can be shaped like a seagull. The openings at the bottom of the first guide channel 6171 and the second guide channel 6172 are smaller than their openings on the tread side, and the openings of the first guide channel 6171 and the second guide channel 6172 gradually increase in size from the bottom towards the tread side. This effectively guides water from the bottom of the channel towards the tread, preventing water from being carried back to the bottom while simultaneously directing water from the bottom towards the tread as much as possible.

[0050] In some possible implementations, refer to Figure 4 and Figure 5 As shown, the top surface of the separator 612 is flush with the tread of the tire 61. The separator 612 can enhance the ability to drain water from both sides of the gap and divide the water film (i.e., push the water apart), so that the top surface of the separator 612 can cut the water film.

[0051] Furthermore, such as Figure 3-5 As shown, a plurality of water-blocking parts 618 are provided between the outer wall of the partition 612 and the inner wall of the drainage channel 611, and the plurality of water-blocking parts 618 are arranged at intervals. The provision of water-blocking parts 618 can enhance the connectivity of the drainage channel 611 and enhance the ability of the double-sided gap 613 to guide and throw water (i.e., push water out centrifugally) when the ground water volume is large.

[0052] like Figure 3As shown, the top surface of the water-blocking part 618 is flush with the top surface of the partition part 612, or the top surface of the water-blocking part 618 is lower than the top surface of the partition part 612, and the top surface of the partition part 612 is flush with the tread of the tire 61. The top surface of the water-blocking part 618 forms a water-guiding surface, which is inclined from the outer wall of the partition part 612 to the inner wall of the drainage groove 611. The water-blocking part 618 can enhance the connectivity between the drainage groove 611 and the side groove 615, and enhance the ability of the double-sided gap 613 to guide and throw water (i.e., push water out centrifugally) when the ground water volume is large.

[0053] In some possible implementations, a gap 613 is provided between the outer wall surface of the partition 612 and the inner wall surface of the drainage groove 611 on both sides of the partition 612; or, a gap 613 is provided between the outer wall surface of the partition 612 and the inner wall surface of the drainage groove 611 on one side of the partition 612.

[0054] In one configuration, gaps 613 are provided on both sides of the partition 612, between the outer wall of the partition 612 and the inner wall of the drainage groove 611. Specifically, there are a first gap and a second gap, located on both sides of the partition. The depth of the first gap's radial depression along the tire and the depth of the second gap's radial depression along the tire are the same as the depth of the drainage groove's radial depression along the tire. The groove width of the gap 613 ranges from 0.5 to 0.6 mm. The two gaps 613 are symmetrically arranged about the partition 612, and their width and depth are the same. The diameter of the outer side of the drainage groove 611 away from the tire 61 is the same as the outer diameter of the drive wheel 6. This ensures that water contained in the drainage groove 611 can be drained outward from the outer periphery of the drive wheel 6. The narrow gaps 613 on both sides ensure drainage performance and prevent the drainage groove 611 from having a large unidirectional enclosed space, thus preventing excessive liquid accumulation in the drainage groove 611 at low and medium speeds.

[0055] In another configuration, a gap 613 is provided between the outer wall of the partition 612 and the inner wall of the drainage trough 611 on one side of the partition 612. The width of the gap 613 is 0.5-0.6 mm to ensure that water contained in the drainage trough 611 can be drained outward from the outer periphery of the drive wheel 6. The narrow gaps 613 on both sides ensure drainage. This prevents a large one-way enclosed space within the drainage trough 611, thus preventing excessive liquid accumulation in the drainage trough 611 at low and medium speeds.

[0056] In some possible implementations, the outer wall surface of the partition 612 includes a top surface and a side surface, the side surface extending from the bottom of the drainage groove to the outer side surface of the tire, and the top surface being parallel to the outer side surface of the tire.

[0057] In some possible implementations, such as Figure 2 , Figure 3 and Figure 4 As shown, the convex portion 614 of each zone grounding area of ​​the tire tread includes multiple portions. The multiple portions 614 are arranged circumferentially along the tire tread. A groove 615 is provided between two adjacent portions 614. The groove 615 is recessed radially along the tire tread. One end of the groove 615 is connected to the drainage groove 611, and the other end of the groove 615 is connected to the outside.

[0058] It should be noted that the thickness of the tire 61 is greater than the radial depth of the groove 615 along the tire tread, and the thickness of the tire 61 is greater than the radial depth of the drainage groove 611 along the tire tread. The radial depth of the groove 615 along the tire tread and the radial depth of the drainage groove 611 along the tire tread can be the same, or they can be different. This disclosure does not specifically limit this aspect.

[0059] When the drive wheel's tire 61 needs to pass through water in a wet environment, the groove 615 contains water from the contact surface, reducing the possibility of water droplets adhering to the outermost surface of the tire 61. During the rotation of the drive wheel, centrifugal force throws the water backward through the interconnected groove 615 and drainage channel 611. The drainage channel 611 contains water from the contact surface, reducing the possibility of water droplets adhering to the outermost surface of the tire 61. During the rotation of the drive wheel, centrifugal force throws the water backward through the interconnected drainage channel 611 and groove 615.

[0060] In this configuration, multiple grooves 615 are arranged in an interlocking manner on the side away from the tire tread of each protrusion 614. The multiple grooves 615 are arranged in a grid-like structure, which defines multiple ridges on the protrusion 614. The multiple ridges can enhance the friction of the outer surface of the tire 61, prevent the drive wheel from slipping, and enhance the grip of the drive wheel.

[0061] When the drive wheel's tire 61 needs to cross water in a wet environment, the groove 615 can accommodate water on the contact surface, reducing the possibility of water droplets adhering to the outermost surface of the tire 61. At the same time, multiple ridges can enhance the friction of the outer surface of the tire 61, ensuring a continuous contact surface between the drive wheel and the ground during travel, maintaining good friction and grip.

[0062] When the drive wheel's tire 61 needs to cross obstacles in a wet environment, the groove 615 can hold water on the contact surface, reducing the possibility of water droplets adhering to the outermost end face of the tire 61. At the same time, multiple ridges can enhance the friction of the outer surface of the tire 61, ensuring that the contact surface between the drive wheel and the ground is continuous during travel, maintaining good friction and grip.

[0063] The cross-section of the side hole 616 can be L-shaped, triangular, circular, or other shapes. This embodiment does not specifically limit the shape.

[0064] For example, the side hole 616 has an L-shaped cross-section. The side hole 616 of the first grounding area is arranged circumferentially along the tread, and two adjacent side holes 616 are spaced apart. The side hole 616 of the second grounding area is arranged circumferentially along the tread, and two adjacent side holes 616 are spaced apart. The side holes 616 of the first grounding area and the side holes 616 of the second grounding area are staggered. The reverse radial pressure on the tread generated by the extrusion force between the ground or obstacle and the tire 61 can be absorbed by the space of the "L-shaped" side hole 616, increasing the elastic deformation space of the tire 61 of the drive wheel. The tire 61 undergoes elastic deformation under force and the contact between the tire 61 and the ground or obstacle changes from a line to a surface, thereby increasing the contact area between the tire 61 and the ground or obstacle, thereby increasing the friction and grip between the tire 61 and the ground or obstacle, and thus enhancing the anti-slip effect of the tire 61 of the drive wheel.

[0065] For example, the side hole 616 has a triangular cross-section. The side hole 616 of the first grounding area is arranged circumferentially along the tread, and two adjacent side holes 616 are spaced apart. The side hole 616 of the second grounding area is arranged circumferentially along the tread, and two adjacent side holes 616 are spaced apart. The side holes 616 of the first grounding area and the side holes 616 of the second grounding area are staggered. The reverse radial pressure on the tread generated by the extrusion force between the ground or obstacle and the tire 61 can be absorbed by the space of the "triangular" side hole 616, increasing the elastic deformation space of the tire 61 of the drive wheel. The tire 61 undergoes elastic deformation under force and the contact between the tire 61 and the ground or obstacle changes from a line to a surface, thereby increasing the contact area between the tire 61 and the ground or obstacle, thereby increasing the friction and grip between the tire 61 and the ground or obstacle, and thus enhancing the anti-slip effect of the tire 61 of the drive wheel.

[0066] For example, the side hole 616 has a circular cross-section. The side hole 616 of the first grounding area is arranged circumferentially along the tread, and two adjacent side holes 616 are spaced apart. The side hole 616 of the second grounding area is arranged circumferentially along the tread, and two adjacent side holes 616 are spaced apart. The side holes 616 of the first grounding area and the side holes 616 of the second grounding area are staggered. The reverse radial pressure on the tread generated by the extrusion force between the ground or obstacle and the tire 61 can be absorbed by the space of the "circular" side hole 616, increasing the elastic deformation space of the tire 61 of the drive wheel. The tire 61 undergoes elastic deformation under force and the contact between the tire 61 and the ground or obstacle changes from a line to a surface, thereby increasing the contact area between the tire 61 and the ground or obstacle, thereby increasing the friction and grip between the tire 61 and the ground or obstacle, and thus enhancing the anti-slip effect of the tire 61 of the drive wheel.

[0067] Based on the same inventive concept, this disclosure also provides a drive wheel for a cleaning device, such as... Figure 2-6 As shown, the drive wheel of the cleaning equipment includes: a tire 61 as described in any of the above embodiments; and a housing 7;

[0068] The tire 61 of the drive wheel is circumferentially fitted onto the outside of the housing 7.

[0069] In this disclosure, the obstacle-crossing ability is improved by optimizing the structure of the tire 61 of the drive wheel; the tire 61 has a stronger water-holding and drainage capacity when traveling in wet environments, and the friction and grip of the drive wheel of the cleaning equipment are enhanced by setting the convex part 614 with ridges and the side hole 616.

[0070] In some possible implementations, such as Figure 6 As shown, the housing 7 includes a front drive wheel housing 71 and a rear drive wheel housing 72, which are detachably connected. Exemplarily, the front drive wheel housing 71 and the rear drive wheel housing 72 are assembled into the housing 7 by screws; furthermore, the front drive wheel housing 71 and the rear drive wheel housing 72 are secured by four screws.

[0071] To facilitate assembly and positioning, the tire 61 is provided with positioning grooves, and the front drive wheel housing 71 and the rear drive wheel housing 72 are provided with positioning blocks corresponding to the positioning grooves. Alternatively, the tire 61 is provided with positioning blocks, and the front drive wheel housing 71 and the rear drive wheel housing 72 are provided with positioning grooves corresponding to the positioning blocks, which facilitates quick positioning and is beneficial for the assembly of the housing 7.

[0072] In some possible implementations, such as Figure 5 As shown, the drive wheel of the cleaning equipment also includes: a reducer (not shown in the figure) and a connecting shaft 8.

[0073] The connecting shaft 8 is coaxially arranged with the housing 7. One end of the connecting shaft 8 is coaxially connected to the housing 7, and the other end of the connecting shaft 8 extends out of the housing 7 and is assembled and connected to the reducer. The front housing 71 and the rear housing 72 of the drive wheel are locked together with screws to achieve a fixed connection between the tire 61 and the connecting shaft 8.

[0074] In this embodiment, the reducer drives the connecting shaft 8 to rotate, which in turn drives the housing 7 to rotate, causing the tire 61 to rotate. This enables the drive wheel of the cleaning equipment to travel in a wet environment. When the drive wheel of the cleaning equipment encounters water while crossing obstacles, the tire 61 has a stronger water-holding and drainage capacity. By providing a convex part 614 with ridges and a side hole 616, the friction and grip of the drive wheel of the cleaning equipment are strengthened, thereby improving the obstacle-crossing ability of the drive wheel of the cleaning equipment in a wet environment.

[0075] Based on the same inventive concept, this disclosure also provides a cleaning device, including a drive wheel as described in any of the above embodiments. It should be noted that the cleaning device may be a sweeper, floor scrubber, vacuum cleaner, etc., but is not limited thereto.

[0076] As understood in this disclosure, "multiple" refers to two or more objects, and other quantifiers are similarly used. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0077] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0078] It is further understood that the terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0079] It can be further understood that, unless otherwise specified, "connection" includes both direct connections where no other components exist between the two parties and indirect connections where other components exist between them.

[0080] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0081] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following scope of claims.

[0082] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A drive wheel for use in cleaning equipment, characterized in that, The diameter of the drive wheel is between 65mm and 75mm, and the drive wheel includes: A tire, the outer side of which is a tread, has drainage grooves with a width between 1 mm and 2.2 mm. The tread has two sections on either side of the drainage grooves, each section having alternating protrusions and grooves; and... A support body is disposed inside the tire, and the support body supports the tire on the inside. The tire tread also has a partition portion disposed within the drainage groove, and there is a gap between the outer wall of the partition portion and the inner wall of the drainage groove. One or more flow guiding structures are disposed on the outer wall of the partition portion, and the flow guiding structures extend along the radial direction of the tire on the outer wall. The flow guiding structures include a first flow guiding groove and a second flow guiding groove. The first flow guiding groove is an arc-shaped groove inclined in a first direction, and the second flow guiding groove is an arc-shaped groove inclined in a second direction, wherein the first direction and the second direction are opposite.

2. The drive wheel according to claim 1, characterized in that, The surface of each of the protrusions of the tread is provided with a tread pattern, which is a plurality of protrusions distributed in an array.

3. The drive wheel according to claim 1, characterized in that, Multiple water-blocking sections are provided between the outer wall of the partition and the inner wall of the drainage channel, and the multiple water-blocking sections are arranged at intervals.

4. The drive wheel according to claim 1, characterized in that, The outer wall of the partition includes a top surface and a side surface. The side surface extends from the bottom of the drainage groove to the outer side surface of the tire, and the top surface is parallel to the outer side surface of the tire.

5. The drive wheel according to claim 1, characterized in that, The width of the drainage channel is between 1 mm and 2.2 mm; and / or, The width of the partition is between 0.5 mm and 1 mm; and / or, The width of the gap is between 0.25mm and 0.6mm.

6. The drive wheel according to claim 5, characterized in that, The gaps on both sides of the partition are symmetrically arranged.

7. The drive wheel according to claim 3, characterized in that, The top surface of the water-blocking part is flush with the top surface of the partition part, and / or, The top surface of the water-blocking part is lower than the top surface of the partition part, and / or, The top surface of the partition is flush with the tread of the tire.

8. The drive wheel according to claim 7, characterized in that, The top surface of the water-blocking part forms a water-guiding surface, which is inclined from the outer wall of the partition part to the inner wall of the drainage channel.

9. The drive wheel according to claim 1, characterized in that, The gap includes a first gap and a second gap, which are located on both sides of the partition. The depth of the first gap and the depth of the second gap along the radial direction of the tire are the same as the depth of the drainage groove along the radial direction of the tire.

10. A cleaning device, characterized in that, Includes the drive wheel as described in any one of claims 1-9.

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