A rolling brush assembly and cleaning device

Abstract

This application provides a roller brush assembly and cleaning equipment, relating to the field of cleaning equipment technology. The roller brush assembly includes a roller, a first blade, a second blade, a transmission assembly, and an elastic element. A cutting groove is provided on the outer periphery of the roller; the first blade is fixedly mounted on the roller; the second blade is slidably mounted on the roller and can reciprocate along the axial direction of the roller; the transmission assembly is connected to the first blade, driving the second blade to reciprocate along the axial direction of the roller to cooperate with the first blade in cutting dirt entangled in the cutting groove; the elastic element is disposed on the opposite side of the first blade and / or the second blade, so that the second blade abuts against the first blade. The second blade, in cooperation with the first blade, cuts hair and other dirt entangled in the cutting groove, improving the situation where dirt entangles on the roller, causing a decrease in the roller's cleaning effect, and ensuring the cleaning effect of the roller.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and more particularly to a roller brush assembly and cleaning equipment. Background Technology

[0002] Existing cleaning equipment uses a roller brush assembly to remove dust, hair, and debris. However, during the cleaning process, hair often gets tangled in the roller brush, preventing it from cleaning properly. This problem is particularly severe when cleaning longer hair.

[0003] In theory, the roller brush, through its rotation and the suction of the cleaning device, can draw hair into the dustbin. However, in actual daily cleaning, longer hairs often rotate with the roller brush, causing them to become entangled instead of being directly sucked into the dustbin. If a lot of hair is entangled, it not only affects the cleaning efficiency and effectiveness of the cleaning device, but in severe cases, it can also cause the roller brush to jam and stop rotating. In this case, the hair entangled on the roller brush must be manually removed before the cleaning device can continue to clean normally, which greatly increases user interference and affects the user experience. Utility Model Content

[0004] This application provides a roller brush assembly and a cleaning device to improve the technical problem that hair easily gets tangled on the roller brush during the cleaning process, affecting the cleaning effect of the roller brush.

[0005] This application provides a roller brush assembly, which is rotatably mounted on a cleaning device. The roller brush assembly includes a roller, a first blade, a second blade, a transmission assembly, and an elastic element. A cutting groove is provided on the outer periphery of the roller; the first blade is fixedly mounted on the roller; the second blade is slidably mounted on the roller and can reciprocate along the axial direction of the roller; the transmission assembly is connected to the first blade and drives the second blade to reciprocate along the axial direction of the roller to cooperate with the first blade in cutting dirt entangled in the cutting groove; the elastic element is disposed on the side opposite to the first blade and / or the second blade, so that the second blade abuts against the first blade.

[0006] The roller brush assembly of this application includes a first blade, a second blade, and a transmission assembly. The transmission assembly drives the second blade to reciprocate along the axial direction of the roller. The second blade cooperates with the first blade to cut hair and other dirt entangled in the cutting groove. The cut dirt breaks off on the roller surface, preventing hair and other dirt from entangled on the roller surface. The cut dirt is then adsorbed into the dust collection box by the suction of the cleaning equipment. By cutting hair and other dirt, the amount of hair and other dirt entangled on the roller surface is reduced, thereby improving the situation where dirt entangled on the roller leads to poor roller cleaning effect and ensuring the cleaning effect of the roller; it effectively reduces the risk of roller jamming, reduces manual intervention, and improves the autonomous capability of the cleaning equipment.

[0007] The roller brush assembly of this application includes an elastic element. The elastic element can be disposed between the roller and the first blade, or between the roller and the second blade. Alternatively, the elastic element can be disposed separately between the roller and the first blade, and also between the roller and the second blade. In other words, the elastic element can be disposed on the side of the first blade facing away from the second blade, thereby applying a force to the first blade towards the second blade to make the first blade press against the second blade; the elastic element can also be disposed on the side of the second blade facing away from the first blade, thereby applying a force to the second blade towards the first blade to make the second blade press against the first blade; or the elastic element can be disposed separately on the side of the first blade facing away from the second blade and the side of the second blade facing away from the first blade, respectively applying forces to the first blade and the second blade to make the first blade press against the second blade. By providing the elastic element, the elastic clamp applies a force to the first blade and / or the second blade, causing the first blade and the second blade to press against each other, avoiding the situation where the gap between the second blade and the first blade is too large, which would affect the cutting effect. This effectively ensures the cutting effect of the cooperation between the second blade and the first blade and reduces the amount of dirt entangled on the roller surface.

[0008] In an exemplary embodiment of this application, the cleaning assembly includes a mounting base. The mounting base is configured to be fixed to the cleaning device and is rotatably connected to a roller; a transmission assembly is connected to the mounting base, and the mounting base drives the transmission assembly to rotate relative to the roller, thereby driving a second blade to reciprocate relative to the roller through the transmission assembly.

[0009] The roller has two ends, one of which is directly or indirectly connected to the drive unit of the cleaning equipment. The drive unit drives the roller to rotate, and the roller interferes with the surface to be cleaned to clean the surface. The other end is rotatably connected to the cleaning equipment, ensuring that the drive unit can drive the roller to rotate. The mounting base of this application is fixed to the cleaning equipment and rotatably connected to the roller. When the drive unit drives the roller to rotate, it rotates relative to the mounting base, thereby causing the transmission component and the roller assembly to rotate relative to each other. The transmission component drives the second blade to reciprocate relative to the roller, and the second blade cooperates with the first blade to cut the dirt in the cutting groove.

[0010] By fixing the blade to the cleaning equipment with the mounting base and rotating with the roller, the transmission component can drive the second blade to reciprocate relative to the roller without the need for a separate drive unit, reducing the number of drive units and lowering production costs.

[0011] In an exemplary embodiment of this application, the transmission assembly includes a worm gear, a worm, and a connecting rod. The worm is fixedly connected to a mounting base; the worm gear is installed inside a drum and meshes with the worm, and a first eccentric shaft is provided on the worm gear; one end of the connecting rod is rotatably connected to the first eccentric shaft, and the other end is rotatably connected to a second blade.

[0012] The worm gear is fixedly connected to the mounting base. When the mounting base rotates relative to the drum, the worm gear rotates relative to the drum. The worm wheel is installed inside the drum, and the drum drives the worm wheel and worm gear to rotate relative to each other. Both the worm wheel and worm gear have helical teeth. Through the relative meshing and rotation of the worm wheel and worm gear, the worm wheel rotates around its own axis. The first eccentric shaft rotates synchronously with the worm wheel. One end of the connecting rod is rotatably connected to the first eccentric shaft, and the other end is rotatably connected to the second blade. The second blade can only move along the axis of the drum. Therefore, when the first eccentric shaft rotates around the axis of the worm wheel, the connecting rod drives the second blade to reciprocate along the axis of the drum to cut the dirt in the cutting groove.

[0013] In an exemplary embodiment of this application, the worm gear includes a meshing portion and a wheel axle that are fixed to each other. The meshing portion meshes with the worm, and the wheel axle extends at least to the side of the meshing portion away from the first eccentric shaft. A second eccentric shaft is provided on the side of the first eccentric shaft away from the worm gear. The second eccentric shaft is located at the eccentricity of the first eccentric shaft, and the axis of the second eccentric shaft coincides with the axis of the wheel axle.

[0014] The axis of the second eccentric shaft coincides with the axis of the wheel axle. When the wheel axle rotates around its own axis, the second eccentric shaft also rotates around the axis of the wheel axle. The wheel axle and the roller can be rotated by rotating the second eccentric shaft on the roller.

[0015] In an exemplary embodiment of this application, a first fixed seat is provided on the end wall of the roller, and a second fixed seat is provided on the inner side wall of the roller. One of the wheel axle and the second eccentric shaft is rotatably mounted on the first fixed seat, and the other is rotatably mounted on the second fixed seat.

[0016] The first fixed seat is set on the end wall of the drum, and the second fixed seat is set on the side wall of the drum. Compared with both fixed seats being set on the side wall of the drum, the distance between the fixed seats is shorter, which makes it easier to install the worm gear. By reducing the length of the wheel axle and / or the second eccentric shaft, the shaking during the rotation of the worm gear can be reduced, the stability of the worm gear rotation can be improved, and the stability and accuracy of the reciprocating motion of the second blade can be guaranteed.

[0017] In an exemplary embodiment of this application, the roller brush assembly includes a first blade holder and a second blade holder. A first blade is mounted on the roller via the first blade holder; a second blade is mounted on the roller via the second blade holder, and a connecting rod is rotatably connected to the second blade holder to indirectly rotatably connect with the second blade; wherein, the connecting rod is provided with two connecting portions at the connection end with the second blade holder, and the two connecting portions are located on both sides of the second blade holder and connected to the second blade holder.

[0018] The connecting rod has two connecting parts at its end, which are located on both sides of the second tool holder. When the connecting rod drives the second tool holder to move, both sides of the second tool holder are simultaneously subjected to force. On the one hand, this ensures the stability of the second tool holder's movement, reduces swaying during movement, and ensures the effective cutting of the second blade in conjunction with the first blade. On the other hand, the connecting parts are rotatably connected to the second tool holder. Compared to a single-sided connecting part, having two connecting parts on both sides of the second tool holder reduces the risk of jamming between the connecting parts and the second tool holder, improves the smoothness of the relative movement between the connecting parts and the second tool holder, and enhances durability and stability.

[0019] In an exemplary embodiment of this application, the first tool post includes a bent portion that bends toward the second tool post, and the bent portion has a limiting groove; the second tool post is provided with a limiting block, which is disposed in the limiting groove to limit the movement of the second tool post relative to the first tool post.

[0020] The second tool holder is limited by the cooperation of the limiting block and the limiting groove, thereby limiting the movement range of the second blade and ensuring the stability of the movement of the second blade.

[0021] In an exemplary embodiment of this application, the roller brush assembly includes a second blade holder, a second blade is mounted on the roller via the second blade holder, and a connecting rod is rotatably connected to the second blade holder to indirectly rotatably connect with the second blade; wherein, a first limiting part is provided on the second blade holder, and a second limiting part is provided on the inner wall of the roller, and the first limiting part and the second limiting part cooperate to limit the movement of the second blade holder along the roller axial direction.

[0022] The second tool holder is limited by the cooperation of the first and second limiting parts, thereby limiting the movement range of the second blade and ensuring the stability of the transmission component driving the movement of the second blade.

[0023] In an exemplary embodiment of this application, the transmission assembly includes a transmission shaft, a driven member, and a limiting seat. The transmission shaft is connected to a mounting base; the driven member is sleeved on the transmission shaft and rotatably connected to the transmission shaft, the axis of the driven member is not parallel to the axis of the transmission shaft, and a limiting head is provided on the outer wall of the driven member; the limiting seat is slidably disposed inside the roller, the limiting seat is connected to the second blade, and the limiting head is connected to the ball head of the limiting seat.

[0024] The driven member's axis is not parallel to the drive shaft's axis. When the drive shaft rotates around the axis, it drives the driven member to rotate. When the driven member rotates, it causes the limiting head to have an offset in the direction of the drum axis. Since the limiting head is connected to the ball head of the limiting seat, the limiting head drives the limiting seat to move linearly back and forth along the direction of the drum axis. As a result, the limiting seat drives the second blade to move linearly back and forth, so that the second blade cooperates with the first blade to cut the dirt in the cutting groove.

[0025] In an exemplary embodiment of this application, a first groove is provided on the outer periphery of the drive shaft, and the axis of the first groove coincides with the axis of the driven member; a second groove is provided on the inner periphery of the driven member, and a ball bearing is provided between the first groove and the second groove, the ball bearing supporting the driven member sleeved on the outer periphery of the drive shaft.

[0026] By incorporating ball bearings, the transmission resistance between the drive shaft and the driven component can be effectively reduced, thereby improving the transmission efficiency. The first and second roller grooves can limit the movement of the ball bearings, preventing them from disengaging from the drive shaft and the driven component, and ensuring transmission stability.

[0027] In an exemplary embodiment of this application, the transmission assembly includes a connecting frame that connects a limiting seat and a second blade.

[0028] Due to the size of the transmission components, there is a certain distance between the limit seat and the second blade. The limit seat and the second blade can be connected by a connecting bracket to ensure that the limit seat drives the second blade to reciprocate linearly.

[0029] In an exemplary embodiment of this application, the transmission assembly includes a reduction gearbox, the input end of which is connected to a mounting base, and the output end of which is connected to a transmission shaft.

[0030] Without a gearbox, the second blade needs to reciprocate once for every revolution of the roller relative to the drive shaft. However, in actual cleaning processes, hair and other dirt do not frequently entangle on the roller, resulting in an excessively high reciprocating frequency of the second blade. This leads to rapid wear between the second and first blades, between the second blade and the roller, and between the limit seat and the roller, thus affecting service life. By incorporating a gearbox, the transmission ratio between the roller and the drive shaft can be altered, causing the drive shaft's rotational speed to be lower than the roller's speed. This reduces the frequency of the second blade's reciprocating movement, decreasing wear, lowering the failure rate, and improving durability.

[0031] A second aspect of this application provides a cleaning device, which includes a device body and a roller brush assembly as described above, the roller brush assembly being rotatably mounted on the device body.

[0032] The cleaning equipment of this application includes a roller brush assembly. A transmission assembly drives a second blade to reciprocate along the axial direction of the roller. The second blade, in conjunction with the first blade, cuts hair and other debris entangled in the cutting groove. The cut debris breaks off on the roller surface, preventing hair and other debris from remaining on the roller. The cut debris is then adsorbed into the dust collection box by the suction of the cleaning equipment. By cutting hair and other debris, the amount of hair and other debris entangled on the roller surface is reduced, thus improving the cleaning effect of the roller and ensuring its cleaning performance. This effectively reduces the risk of roller jamming, decreases manual intervention, and enhances the autonomous capability of the cleaning equipment.

[0033] The roller brush assembly of the cleaning equipment also includes an elastic element. This elastic element can be disposed between the roller and the first blade, or between the roller and the second blade. Alternatively, it can be disposed separately between the roller and the first blade, or between the roller and the second blade. In other words, the elastic element can be disposed on the side of the first blade away from the second blade, applying a force to the first blade towards the second blade to ensure the first blade is pressed against the second blade; or it can be disposed on the side of the second blade away from the first blade, applying a force to the second blade towards the first blade to ensure the second blade is pressed against the first blade; or it can be disposed separately on the side of the first blade away from the second blade and the side of the second blade away from the first blade, applying forces to the first and second blades respectively to ensure the first and second blades press against each other. By incorporating the elastic element, the elastic clamp applies a force to the first and / or second blades, causing them to press against each other, preventing excessive gaps between the second and first blades that could affect the cutting effect, effectively ensuring the cutting effect of the cooperation between the second and first blades, and reducing dirt entanglement on the roller surface.

[0034] In combination with existing technologies, the beneficial effects of this application are as follows:

[0035] Existing roller assemblies suffer from hair entanglement on the roller surface during cleaning, affecting cleaning effectiveness and potentially causing the roller to jam, requiring manual intervention and impacting user experience. The roller assembly of this application utilizes a transmission component to drive a second blade to reciprocate along the roller's axial direction. This second blade, in conjunction with the first blade, cuts hair and other contaminants entangled in the cutting groove. The cut contaminants break off on the roller surface, preventing them from entangled. The cut contaminants are then adsorbed into the dust collection box by the suction of the cleaning equipment. By cutting hair and other contaminants, the amount entangled on the roller surface is reduced, thus improving the cleaning effect and ensuring optimal cleaning performance. This also effectively reduces the risk of roller jamming, minimizes manual intervention, and enhances the autonomous capabilities of the cleaning equipment.

[0036] By setting up an elastic element, the elastic clamp applies a force to the first blade and / or the second blade, causing the first blade and the second blade to press against each other. This avoids the situation where the gap between the second blade and the first blade is too large, which would affect the cutting effect. It effectively ensures the cutting effect of the cooperation between the second blade and the first blade and reduces the dirt wrapped around the roller surface. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0038] In the attached diagram:

[0039] Figure 1 This is a schematic diagram of a roller brush assembly provided in one embodiment of this application;

[0040] Figure 2 This is an exploded view of a roller brush assembly provided in one embodiment of this application;

[0041] Figure 3 This is a partial structural diagram of the roller brush assembly provided in one embodiment of this application;

[0042] Figure 4 This is a schematic diagram of a portion of the roller brush assembly provided in one embodiment of this application from another angle.

[0043] Figure 5 This is a schematic diagram of the transmission component structure in a roller brush assembly provided in one embodiment of this application;

[0044] Figure 6 This is a schematic diagram of the transmission component structure in a roller brush assembly provided in one embodiment of this application from another angle.

[0045] Figure 7 This is a schematic diagram of a portion of the transmission assembly provided in one embodiment of this application;

[0046] Figure 8 This is a schematic diagram of a portion of the transmission assembly provided in one embodiment of this application from another angle;

[0047] Figure 9 This is an exploded view of the roller brush assembly provided in another embodiment of this application;

[0048] Figure 10 This is a partial structural diagram of the roller brush assembly provided in another embodiment of this application;

[0049] Figure 11 This is a schematic diagram of a portion of the roller brush assembly provided in another embodiment of this application from another angle;

[0050] Figure 12 This is a partial structural diagram of the transmission assembly provided in another embodiment of this application;

[0051] Figure 13 This is an exploded view of the roller brush assembly provided in another embodiment of this application;

[0052] Figure 14 This is a partial structural diagram of the roller brush assembly provided in another embodiment of this application;

[0053] Figure 15 This is a partial structural diagram of the transmission assembly provided in another embodiment of this application;

[0054] Figure 16 This is a schematic diagram of a portion of the transmission assembly provided in another embodiment of this application from another angle.

[0055] Figure 17 This is an exploded view of the roller brush assembly provided in another embodiment of this application;

[0056] Figure 18 This is a partial structural diagram of the roller brush assembly provided in another embodiment of this application.

[0057] The attached figures are labeled as follows:

[0058] 100. Roller; 110. Cutting groove; 120. First fixed seat;

[0059] 200, first blade; 300, second blade;

[0060] 400. Transmission assembly; 410. Worm gear; 420. Worm wheel; 421. First eccentric shaft; 422. Meshing part; 423. Wheel axle; 424. Second eccentric shaft; 430. Connecting rod; 431. Connecting part; 440. Drive shaft; 441. First groove; 450. Follower; 451. Limiting head; 452. Second groove; 460. Limiting seat; 470. Ball bearing; 480. Connecting frame; 490. Gearbox;

[0061] 500. Mounting bracket;

[0062] 600, First tool holder; 610, Bending section; 611, Limiting groove;

[0063] 700. Second tool holder; 710. Limit block;

[0064] 800. Elastic components. Detailed Implementation

[0065] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0066] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0067] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present application. However, it will be apparent to those skilled in the art that embodiments of the present application may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present application.

[0068] It should be noted that the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of this application. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered as part of the scope of this application.

[0069] Cleaning equipment cleans the surface by interfering with the surface using a roller brush assembly. Since the dirt on the surface may consist of tangled debris such as hair, this debris easily gets entangled in the roller as it rotates. Excessive entanglement on the roller affects its cleaning effectiveness. For example, if the roller includes a rubber brush, the entanglement can deform it, preventing it from making adequate contact with the surface; similarly, if the roller includes soft bristles, the entanglement can deform the bristles, also hindering contact. When there is too much entanglement, it can also rub against the surface, producing noise. In severe cases, the entanglement can even cause the roller to jam, requiring manual cleaning and impacting the user experience.

[0070] Please see Figures 1 to 18 Therefore, this application provides a roller brush assembly that is rotatably mounted on a cleaning device. The roller brush assembly includes a roller 100, a first blade 200, a second blade 300, a transmission assembly 400, and an elastic element 800. A cutting groove 110 is provided on the outer periphery of the roller 100. The first blade 200 is fixedly mounted on the roller 100; the second blade 300 is slidably mounted on the roller 100 and can reciprocate along the axial direction of the roller 100; the transmission assembly 400 is connected to the first blade 200 and drives the second blade 300 to reciprocate along the axial direction of the roller 100 to cooperate with the first blade 200 to cut the dirt wrapped in the cutting groove 110; the elastic element 800 is disposed on the side opposite to the first blade 200 and / or the second blade 300 so that the second blade 300 abuts against the first blade 200.

[0071] The roller brush assembly of this application drives the second blade 300 to reciprocate along the axial direction of the roller 100 via the transmission assembly 400. The second blade 300 cooperates with the first blade 200 to cut hair and other dirt entangled in the cutting groove 110. The cut dirt breaks off on the surface of the roller 100 and is then adsorbed into the dust collection box by the suction of the cleaning equipment, thus preventing hair and other dirt from entangled on the surface of the roller 100. By cutting hair and other dirt, the amount of hair and other dirt entangled on the surface of the roller 100 is reduced, thereby improving the situation where dirt entangled on the roller 100 leads to a decrease in the cleaning effect of the roller 100, ensuring the cleaning effect of the roller 100; effectively reducing the risk of roller 100 jamming, reducing manual intervention, and improving the autonomous capability of the cleaning equipment.

[0072] The roller 100 includes at least a hollow cylindrical body to form the main body of the roller 100 and to provide an installation base for the installation of other components of the roller 100.

[0073] For example, the roller 100 has two ends, wherein the first end is directly or indirectly connected to the drive component of the cleaning device. The drive component drives the roller 100 to rotate, and the roller 100 interferes with the surface to be cleaned to clean the surface. The first end is rotatably connected to the cleaning device to ensure that the drive component can drive the roller 100 to rotate.

[0074] The second end can be rotatably connected to the cleaning equipment. This can be achieved by having a rotating structure on the second end, thereby enabling relative rotation between the second end and the cleaning equipment; or by having a rotating structure on the cleaning equipment, with the second end connected to the rotating structure on the cleaning equipment, thereby enabling relative rotation between the second end and the cleaning equipment; or by directly rotatably connecting the second end to the cleaning equipment, thereby enabling relative rotation between the second end and the cleaning equipment.

[0075] The roller 100 also includes at least a cleaning section disposed outside the roller body. The cleaning section can be one or more of cleaning strips, cleaning bristles, and cleaning cloths. The cleaning section can also be other structures used to clean the surface to be cleaned, which will not be described in detail in this application.

[0076] The cutting groove 110 is disposed on the outer periphery of the roller 100. The cutting groove 110 penetrates the inner and outer periphery of the roller 100. In other words, the cutting groove 110 communicates with the interior of the roller 100. The cutting groove 110 is passed through by the first blade 200 and the second blade 300, so that the first blade 200 and the second blade 300 cooperate to cut hair and other dirt wrapped around the cutting groove 110.

[0077] For example, protective teeth are provided on the outside of the cutting groove 110. The protective teeth are located on the side of the first blade 200 and the second blade 300 facing outward from the roller 100 to prevent the user or the surface to be cleaned from directly contacting the first blade 200 or the second blade 300, thereby protecting the user and improving the safety of using the cleaning equipment. The gaps between the protective teeth allow hair and other dirt to get stuck and become entangled, so that the first blade 200 and the second blade 300 can cut the dirt entangled on the cutting groove 110.

[0078] In some embodiments, the cutting groove 110 is generally elongated and extends along the axial direction of the roller 100 to between the two ends of the roller 100. The cutting groove 110 has suitable dimensions so that the second blade 300 has sufficient space to cooperate with the first blade 200 to cut the dirt wrapped around the roller 100, ensuring the cutting effect on dirt such as hair.

[0079] In some embodiments, the protective tooth includes two single structures disposed opposite each other on both sides of the opening of the cutting groove 110 to facilitate the installation of the first blade 200, the second blade 300 and the protective tooth.

[0080] In other embodiments, the protective tooth may also be an integral structure, integrally formed at the opening of the cutting groove 110.

[0081] The roller brush assembly of this application includes an elastic element 800. The elastic element 800 can be disposed on the side of the first blade 200 away from the second blade 300, thereby applying a force to the first blade 200 toward the second blade 300 so that the first blade 200 is pressed against the second blade 300. The elastic element 800 can also be disposed on the side of the second blade 300 away from the first blade 200, thereby applying a force to the second blade 300 toward the first blade 200 so that the second blade 300 is pressed against the first blade 200. The elastic element 800 can also be disposed on the side of the first blade 200 away from the second blade 300 and the side of the second blade 300 away from the first blade 200 respectively, applying a force to the first blade 200 and the second blade 300 respectively, so that the first blade 200 and the second blade 300 press against each other. In other words, the elastic element 800 can be disposed between the inner wall of the roller 100 and the first blade 200, or between the inner wall of the roller 100 and the second blade 300. Alternatively, the elastic element 800 can be disposed separately between the inner wall of the roller 100 and the first blade 200, and between the inner wall of the roller 100 and the second blade 300. By providing the elastic element 800, the elastic clamp applies a force to the first blade 200 and / or the second blade 300, causing the first blade 200 and the second blade 300 to press against each other. Under long-term use of the cleaning equipment, wear will occur between the first blade 200 and the second blade 300 due to the reciprocating linear motion of the first blade 200 relative to the second blade 300. By providing the elastic element 800, the elastic element 800 can compensate for the wear between the first blade 200 and the second blade 300, ensuring that the second blade 300 remains in contact with the first blade 200. To avoid the situation where the gap between the second blade 300 and the first blade 200 is too large, which would affect the cutting effect, the cutting effect of the second blade 300 and the first blade 200 are effectively guaranteed, and the dirt wrapped around the surface of the roller 100 is reduced.

[0082] Please see Figure 4 In some embodiments, the roller brush assembly includes a first blade holder 600, through which the first blade 200 is mounted on the roller 100. The first blade holder 600 facilitates the securing of the first blade 200 to the roller 100.

[0083] The first blade 200 and the first tool holder 600 can be fixed by means including but not limited to snap-fit ​​connection, bolt connection, etc. The first blade 200 and the first tool holder 600 can also be fixed by integral molding.

[0084] The methods of fixing the first tool holder 600 and the roller 100 include, but are not limited to, snap-fit ​​connection and bolt connection.

[0085] Please see Figure 3 and Figure 4The roller brush assembly includes a second blade holder 700, and a second blade 300 is mounted on the roller 100 via the second blade holder 700. The fixing methods of the second blade 300 and the second blade holder 700 include, but are not limited to, snap-fit ​​connection, bolt connection, etc. The second blade 300 and the second blade holder 700 can also be fixed relative to each other by integral molding.

[0086] The sliding method between the second tool holder 700 and the roller 100 can be that the roller 100 is provided with a sliding groove, and the second tool holder 700 slides along the sliding groove; or the roller 100 is provided with a linear guide rail, and the second tool holder 700 slides along the linear guide rail and is slidably connected to the roller 100; the second tool holder 700 and the roller 100 can also be other sliding connection methods.

[0087] Of course, as some alternatives, the second blade 300 can also be directly slidably connected to the roller 100. The connection methods include, but are not limited to, sliding methods such as sliding between the slider and the groove, and sliding methods such as linear guide pairs.

[0088] Please see Figure 4 In some implementations, the first tool holder 600 includes a bent portion 610 that bends toward the second tool holder 700. The bent portion 610 is generally U-shaped, with a central concave portion and connecting plates at both ends of the concave portion. One connecting plate is used to fix it to the roller 100, and the other connecting plate is used to fix it to the first blade 200.

[0089] The methods by which the connecting plate is fixed to the roller 100 include, but are not limited to, snap-fit ​​connection and bolt connection.

[0090] For example, a bolt post is provided on the inner side of the roller 100. The bolt post has an internal thread, and a through hole is provided on the connecting plate. The connecting plate and the roller 100 are fixed relative to each other by bolting the bolt through the through hole and connecting it to the bolt post.

[0091] For example, a positioning pin is provided on the inner side of the roller 100, and a positioning hole is provided on the connecting plate. The connecting plate and the roller 100 are positioned by inserting the positioning pin into the positioning hole, so as to facilitate the fixing of the connecting plate and the roller 100.

[0092] A mounting groove is formed between the U-shaped bend 610 and the roller 100, and the mounting groove extends along the axis of the roller 100. The second tool holder 700 is disposed at the mounting groove, and the mounting groove formed between the mounting groove and the roller 100 limits the movement of the second tool holder 700, so that the second tool holder 700 can only move back and forth within the mounting groove, ensuring the stability of the movement of the second tool holder 700.

[0093] Of course, as some alternatives, the bending portion 610 can also be other shapes, such as Z-shaped, L-shaped, etc., as long as it meets the installation requirements of the first blade 200.

[0094] Please see Figure 4 In some embodiments, a limiting groove 611 is provided on the bending portion 610. A limiting block 710 is provided on the second tool holder 700. The limiting block 710 protrudes from the mounting groove and is located at the limiting groove 611. The limiting groove 611 limits the movement of the limiting block 710 along the axis of the roller 100, thereby limiting the movement of the second tool holder 700 relative to the first tool holder 600 and ensuring that the second support completes reciprocating linear motion according to a preset stroke. This limits the range of motion of the second blade 300 and ensures the stability of the movement of the second blade 300.

[0095] The number of limiting grooves 611 and limiting blocks 710 is the same, and the number can be selected according to the length direction of the roller 100. For example, one, two, three or more can be set.

[0096] The shape of the limiting block 710 is selected according to the internal structure of the roller 100, for example, square or cylindrical. If multiple limiting blocks 710 are provided, the limiting blocks 710 can be of the same shape or different shapes, depending on the space of the roller 100 where the limiting block 710 is located.

[0097] Of course, if the limiting block 710 and the limiting groove 611 do not limit the movement of the second bracket, the limiting block 710 and the limiting groove 611 may not be provided in other embodiments.

[0098] In some embodiments, the limiting groove 611 is disposed between the recess of the U-shaped bending portion 610 and the connecting plate. Preferably, the limiting groove 611 is disposed between the connecting plate connected to the roller 100 and the recess, so as to facilitate the matching of the limiting block 710 and the limiting groove 611.

[0099] In some embodiments, the limiting block 710 is located on the side of the second tool holder 700 near the second blade 300, and at least a portion of the limiting block 710 is provided with an extension on the side away from the second blade 300, the extension extending toward the second tool holder 700. The extension, the limiting block 710, and the main body of the second tool holder 700 are formed with grooves.

[0100] Rollers are provided on the roller 100, and the rollers are located in the groove and abut against the extension. When the second tool post 700 reciprocates, the rollers roll along the surface of the extension, which can guide the movement of the second tool post 700, improve the stability of the movement, and reduce the movement resistance of the second tool post 700 during reciprocating motion, reduce wear, and improve durability.

[0101] In some embodiments, the elastic element is an elastic component such as elastic cotton, elastic snap ring, or elastic sheet, and the elastic element 800 is disposed between the first tool holder 600 and the roller 100.

[0102] The roller 100 has a receiving cavity on the side near the first tool holder 600. The elastic element 800 is disposed in the receiving cavity and presses against the first tool holder 600 so that the first blade 200 and the second blade 300 are in contact.

[0103] Please see Figure 2 and Figure 3 In some embodiments, the cleaning assembly includes a mounting base 500. The mounting base 500 is configured to be fixed to the cleaning equipment and is rotatably connected to the roller 100. A transmission assembly 400 is connected to the mounting base 500, and the mounting base 500 drives the transmission assembly 400 to rotate relative to the roller 100, thereby driving the second blade 300 to reciprocate relative to the roller 100.

[0104] The mounting base 500 is connected to the second end of the roller 100, and the mounting base 500 is rotatably connected to the roller 100. When the mounting base 500 is fixed to the cleaning equipment, the second end of the roller 100 is rotatably connected to the cleaning equipment. When the drive component on the cleaning equipment or the roller 100 assembly drives the roller 100 to rotate, the roller 100 and the mounting base 500 rotate relative to each other. The transmission component 400 drives the second blade 300 to reciprocate relative to the roller 100. The second blade 300 cooperates with the first blade 200 to cut the dirt in the cutting groove 110.

[0105] The second blade 300 is fixed to the cleaning equipment by the mounting base 500 and rotates with the roller 100. The transmission component 400 can drive the second blade 300 to reciprocate relative to the roller 100 without the need for a separate drive component, thereby reducing the number of drive components and lowering production costs.

[0106] Please see Figure 2 and Figure 5 In some embodiments, the transmission assembly 400 includes a worm gear 420, a worm 410, and a connecting rod 430.

[0107] The worm gear 410 is fixedly connected to the mounting base 500. When the driving component drives the roller 100 to rotate, the mounting base 500 rotates relative to the roller 100, thereby causing the worm gear 410 to rotate relative to the roller 100.

[0108] The worm gear 420 is installed inside the drum 100 and meshes with the worm 410. Both the worm gear 420 and the worm 410 are helical teeth. The worm gear 420 is rotatably installed inside the drum 100. When the drum 100 drives the worm gear 420 to move, the drum 100 drives the worm gear 420 and the worm 410 to rotate relative to each other. Through the relative meshing of the worm gear 420 and the worm 410, the worm gear 420 rotates around its own axis.

[0109] A first eccentric shaft 421 is provided on the worm gear 420. One end of the connecting rod 430 is rotatably connected to the first eccentric shaft 421, and the other end is rotatably connected to the second blade 300. The first eccentric shaft 421 rotates synchronously with the worm gear 420. One end of the connecting rod 430 is rotatably connected to the first eccentric shaft 421, and the other end is rotatably connected to the second blade 300. The second blade 300 can only move along the axis of the drum 100. Thus, when the first eccentric shaft 421 rotates around the axis of the worm gear 420, the connecting rod 430 drives the second blade 300 to reciprocate along the axis of the drum 100, so as to cut the dirt in the cutting groove 110.

[0110] Please see Figure 7 and Figure 8 In some embodiments, the worm gear 420 includes a fixed meshing portion 422 and a wheel axle 423, the meshing portion 422 meshing with the worm 410, and the wheel axle 423 extending at least toward the side of the meshing portion 422 away from the first eccentric shaft 421.

[0111] A second eccentric shaft 424 is provided on the side of the first eccentric shaft 421 away from the worm gear 420. The second eccentric shaft 424 is located at the eccentric part of the first eccentric shaft 421, and the axis of the second eccentric shaft 424 coincides with the axis of the wheel axle 423.

[0112] The axis of the second eccentric shaft 424 coincides with the axis of the wheel axle 423. When the wheel axle 423 rotates around its own axis, the second eccentric shaft 424 also rotates around the axis of the wheel axle 423. The wheel axle 423 and the roller 100 can be rotatably connected by the second eccentric shaft 424 being rotatably mounted on the roller 100.

[0113] Please see Figure 6 In some embodiments, a first fixed seat 120 is provided on the end wall of the roller 100, and a second fixed seat is provided on the inner side wall of the roller 100. One of the wheel axle 423 and the second eccentric shaft 424 is rotatably mounted on the first fixed seat 120, and the other is rotatably mounted on the second fixed seat.

[0114] The axle 423 can be mounted on the first fixed seat 120, and the second eccentric shaft 424 can be rotatably mounted on the second fixed seat; alternatively, the axle 423 can be mounted on the second fixed seat, and the second eccentric shaft 424 can be rotatably mounted on the first fixed seat 120.

[0115] The first fixed seat 120 is set on the end wall of the drum 100, and the second fixed seat is set on the side wall of the drum 100. Compared with both fixed seats being set on the side wall of the drum 100, the distance between the fixed seats is shorter, which makes it easier to install the worm gear 420. By reducing the length of the wheel shaft 423 and / or the second eccentric shaft 424, the shaking of the worm gear 420 during rotation can be reduced, the stability of the worm gear 420 rotation can be improved, and the stability and accuracy of the reciprocating motion of the second blade 300 can be guaranteed.

[0116] For example, a bearing is mounted on the first fixed seat 120, and the wheel axle 423 is fixed to the inner ring of the bearing, thereby making the wheel axle 423 rotatably connected to the first fixed seat 120.

[0117] A bearing is installed on the second fixed seat, and the second eccentric shaft 424 is fixed to the inner ring of the bearing, thereby making the second eccentric shaft 424 rotatably connected to the second fixed seat.

[0118] Please see Figure 4 and Figure 6 In some embodiments, the connecting rod 430 is rotatably connected to the second tool holder 700 so as to be indirectly rotatably connected to the second blade 300.

[0119] The connecting rod 430 is provided with two connecting parts 431 at the connection end with the second tool holder 700. The two connecting parts 431 are respectively located on both sides of the second tool holder 700 and connected to the second tool holder 700.

[0120] When the connecting rod 430 drives the second tool holder 700 to move, both sides of the second tool holder 700 are simultaneously subjected to force. On the one hand, this ensures the stability of the movement of the second tool holder 700, reduces the shaking during movement, and ensures the cutting effect of the second blade 300 and the first blade 200. On the other hand, the connecting part 431 is rotatably connected to the second tool holder 700. Compared with a single-sided connecting part 431, having two connecting parts 431 on both sides of the second tool holder 700 reduces the risk of jamming between the connecting part 431 and the second tool holder 700, improves the smoothness of the relative movement between the connecting part 431 and the second tool holder 700, and enhances durability and stability.

[0121] For example, the second tool holder 700 is provided with a first through hole, and the two connecting parts 431 are provided with second through holes. The connecting parts 431 and the second tool holder 700 are rotatably connected by connecting shafts that sequentially connect the second through holes and the first through holes.

[0122] When the connecting rod 430 drives the second tool holder 700 to move, the two connecting parts 431 will act on both ends of the connecting shaft, thereby reducing the risk of jamming or locking caused by unilateral force on the connecting shaft, and ensuring the smoothness and stability of the relative movement between the connecting part 431 and the second tool holder 700.

[0123] In one embodiment, the connecting rod 430 is rotatably connected to the limiting part on the second tool holder 700, and the limiting part serves both a limiting function and a connecting function.

[0124] Of course, as an alternative, the connecting part 431 on the connecting rod 430 may be provided on only one side, so that the connecting part 431 is provided on one side of the second tool holder 700.

[0125] Please see Figures 9 to 12 In other embodiments, the roller brush assembly includes a second blade holder 700, and a second blade 300 is mounted on the roller 100 via the second blade holder 700. A connecting rod 430 is rotatably connected to the second blade holder 700 to indirectly rotatably connect with the second blade 300. The second blade holder 700 is provided with a first limiting part, and the inner wall of the roller 100 is provided with a second limiting part. The first limiting part and the second limiting part cooperate to limit the movement of the second blade holder 700 along the axial direction of the roller 100.

[0126] The second tool holder 700 is limited by the cooperation of the first limiting part and the second limiting part, thereby limiting the movement range of the second blade 300 and ensuring the stability of the movement of the second blade 300 driven by the transmission component 400.

[0127] The first limiting part and the second limiting part can include a variety of limiting options. For example, the first limiting part is a waist-shaped groove, and the second limiting part is a limiting rod inserted into the waist-shaped groove. The movement stroke of the second tool holder 700 is limited by the travel limit of the limiting rod in the waist-shaped groove. Alternatively, the first limiting part is a limiting rod, and the second limiting part is a long strip groove provided on the roller 100. The movement of the second tool holder 700 is limited by the cooperation between the limiting rod and the long strip groove.

[0128] Please see Figures 13 to 18 In some embodiments, the transmission assembly 400 includes a transmission shaft 440, a follower 450, and a limiting seat 460. The transmission shaft 440 is connected to the mounting base 500; the follower 450 is sleeved on the transmission shaft 440 and rotatably connected to the transmission shaft 440, the axis of the follower 450 is not parallel to the axis of the transmission shaft 440, and a limiting head 451 is provided on the outer wall of the follower 450; the limiting seat 460 is slidably disposed in the roller 100, the limiting seat 460 is connected to the second blade 300, and the limiting head 451 is ball-head connected to the limiting seat 460.

[0129] The axis of the driven member 450 is not parallel to the axis of the transmission shaft 440. When the transmission shaft 440 rotates around the axis, it drives the driven member 450 to rotate. When the driven member 450 rotates, it will cause the limiting head 451 to have an offset in the direction of the axis of the drum 100. Since the limiting head 451 is connected to the ball head of the limiting seat 460, the limiting head 451 drives the limiting seat 460 to move linearly back and forth along the axis of the drum 100. As a result, the limiting seat 460 drives the second blade 300 to move linearly back and forth, so that the second blade 300 cooperates with the first blade 200 to cut the dirt in the cutting groove 110.

[0130] Please see Figure 15 and Figure 16In some embodiments, the outer periphery of the drive shaft 440 is provided with a first groove 441, the axis of the first groove 441 coincides with the axis of the follower 450; the inner periphery of the follower 450 is provided with a second groove 452, and a ball bearing 470 is provided between the first groove 441 and the second groove 452, the ball bearing 470 supporting the follower 450 sleeved on the outer periphery of the drive shaft 440.

[0131] By incorporating the rolling ball 470, the transmission resistance between the drive shaft 440 and the driven member 450 can be effectively reduced, thereby improving the transmission efficiency between the drive shaft 440 and the driven member 450. The first groove 441 and the second groove 452 can limit the rolling ball 470, preventing the rolling shaft from disengaging from the drive shaft 440 and the driven member 450, thus ensuring transmission stability.

[0132] In some embodiments, the outer periphery of the drive shaft 440 is provided with a plurality of protrusions, at least two of which are at different distances from the mounting base 500 in the axial direction of the roller 100, and the plurality of protrusions move along the same rolling groove on the follower 450.

[0133] When the drive shaft 440 rotates, the different distances between the multiple protrusions and the mounting base 500 cause the driven member 450 to wobble, which in turn causes the limiting head 451 to reciprocate along the axis of the roller 100. This causes the limiting base 460 to drive the second blade 300 to move linearly back and forth, so that the second blade 300 cooperates with the first blade 200 to cut the dirt in the cutting groove 110.

[0134] Please see Figure 5 In some embodiments, the transmission assembly 400 includes a connecting frame 480 that connects the limiting seat 460 and the second blade 300.

[0135] Due to the size of the transmission component 400, there is a certain distance between the limiting seat 460 and the second blade 300. The limiting seat 460 and the second blade 300 can be connected by the connecting bracket 480 to ensure that the limiting seat 460 drives the second blade 300 to reciprocate linearly.

[0136] In some embodiments, a limiting groove is provided on the inner side of the roller 100, and the limiting groove extends along the axial direction of the roller 100. The connecting frame 480 and / or the limiting seat 460 are assembled in the limiting groove, thereby limiting the connecting frame 480 and / or the limiting seat 460 through the limiting groove, so that it can reciprocate linearly along the axial direction of the roller 100.

[0137] For example, the connector can be assembled in the limiting slide groove, or the limiting seat 460 can be assembled in the limiting slide groove, or the connector and the limiting seat 460 can be assembled in the limiting slide groove at the same time, so as to effectively ensure that the transmission component 400 drives the second tool holder 700 to perform reciprocating linear motion.

[0138] Please see Figure 17 and Figure 18 In some embodiments, the transmission assembly 400 includes a reduction gearbox 490, the input end of which is connected to the mounting base 500, and the output end of which is connected to the transmission shaft 440.

[0139] Without a gearbox 490 in the transmission assembly 400, the second blade 300 needs to reciprocate linearly once for every revolution of the roller 100 relative to the drive shaft 440. However, in actual cleaning, hair and other dirt do not frequently entangle on the roller 100, resulting in an excessively high reciprocating frequency of the second blade 300. This leads to faster wear between the second blade 300 and the first blade 200, between the second blade 300 and the roller 100, and between the limit seat 460 and the roller 100, thus affecting service life. By incorporating a gearbox 490, the transmission ratio between the roller 100 and the drive shaft 440 can be changed, causing the speed of the drive shaft 440 to be lower than that of the roller 100. This reduces the frequency of the second blade 300's reciprocating movement, decreases wear, lowers the failure rate, and improves durability.

[0140] A second aspect of this application provides a cleaning device, which includes a device body and a roller brush assembly as described above, the roller brush assembly being rotatably mounted on the device body.

[0141] The cleaning equipment of this application includes a roller brush assembly. A transmission assembly 400 drives a second blade 300 to reciprocate along the axial direction of the roller 100. The second blade 300 cooperates with the first blade 200 to cut hair and other dirt entangled in the cutting groove 110. The cut dirt breaks off on the surface of the roller 100, preventing hair and other dirt from entangled on the surface. The cut dirt is then adsorbed into the dust collection box by the suction of the cleaning equipment. By cutting hair and other dirt, the amount of hair and other dirt entangled on the surface of the roller 100 is reduced, thereby improving the situation where dirt entangled on the roller 100 leads to a decrease in the cleaning effect of the roller 100, ensuring the cleaning effect of the roller 100; effectively reducing the risk of roller 100 jamming, reducing manual intervention, and improving the autonomous capability of the cleaning equipment.

[0142] The roller brush assembly of the cleaning equipment also includes an elastic element 800. By setting the elastic element 800, the elastic clamp applies a force to the first blade 200 and / or the second blade 300, so that the first blade 200 and the second blade 300 press against each other, avoiding the situation where the gap between the second blade 300 and the first blade 200 is too large, which would affect the cutting effect. This effectively ensures the cutting effect of the cooperation between the second blade 300 and the first blade 200 and reduces the dirt wrapped around the surface of the roller 100.

[0143] The cleaning equipment described in this application can be a sweeping robot, a mopping robot, a washing and mopping robot with roller 100 components, etc.

[0144] The cleaning equipment has a main body, which can house various components. The main body can be any shape, such as cylindrical, elliptical, or D-shaped.

[0145] The cleaning equipment also includes a walking system conventionally found on existing cleaning equipment, used to drive the main body of the equipment to move independently across the surface to be cleaned. The walking system includes at least a driver and drive wheels, which rotate under the action of the driver. There are generally two drive wheels, symmetrically located at the bottom of the main body of the equipment. The specific structure of the walking system and the connection structure between the walking system and the main body of the equipment can be found in the relevant structural descriptions of existing cleaning equipment, and will not be repeated here.

[0146] To perform its cleaning function, the cleaning equipment includes at least a roller 100 assembly. The roller 100 assembly is detachably connected to the main body of the equipment, and the detachable connection method can be a snap-fit ​​connection, a bolt-fit connection, or the like. The roller 100 assembly can be configured for dry mopping or wet mopping.

[0147] In some embodiments, the cleaning device may also include a side brush located at the bottom of the device body. The side brush can rotate via a rotating mechanism, which may be a combination of a motor and a reducer, etc. When the side brush rotates, it can gather debris at the edge of the device body towards the inside of the device body, thereby increasing the cleaning range of the cleaning device. The side brush can be a rubber strip or a bristle brush, etc., as long as it can sweep the ground, there is no limitation.

[0148] In addition to the above, the cleaning equipment may also include a sensing system and a control system. The sensing system and the control system are electrically connected. The sensing system includes an LDS located on top of the equipment body, a buffer and vision sensor located at the front of the equipment body, and an edge sensor located on the front side wall of the equipment body. Among them, the LDS, buffer, and edge sensor can all measure or sense distance to obtain the distance between the edge of the equipment body and obstacles. The control system uses this distance to control the cleaning equipment to perform corresponding actions. For example, controlling the cleaning equipment to perform obstacle avoidance, edge cleaning, and returning to the base station.

[0149] The cleaning component and equipment provided in this application involve a cleaning component that drives a second blade 300 to reciprocate along the axial direction of a roller 100 via a transmission component 400. The second blade 300 cooperates with the first blade 200 to cut hair and other contaminants entangled in the cutting groove 110. The cut contaminants break off on the surface of the roller 100, preventing hair and other contaminants from entangled on the surface. The cut contaminants are then adsorbed into the dust collection box by the suction of the cleaning equipment. By cutting hair and other contaminants, the amount of hair and other contaminants entangled on the surface of the roller 100 is reduced, thereby improving the situation where contaminants entangled on the roller 100 lead to a decrease in the cleaning effect of the roller 100, ensuring the cleaning effect of the roller 100; effectively reducing the risk of the roller 100 jamming, reducing manual intervention, and improving the autonomous capability of the cleaning equipment.

[0150] By incorporating an elastic element 800, the elastic clamp applies force to the first blade 200 and / or the second blade 300, causing the first blade 200 and the second blade 300 to press against each other. This prevents excessive gaps between the second blade 300 and the first blade 200 from affecting the cutting effect, effectively ensuring the cutting performance of the second blade 300 and the first blade 200, and reducing the amount of dirt entangled on the surface of the roller 100. Therefore, this application effectively overcomes some practical problems in the prior art, thus possessing high utilization value and practical significance.

[0151] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A roller brush assembly, rotatably mounted on a cleaning device, characterized in that, include: A roller (100) has a cutting groove (110) on its outer periphery; The first blade (200) is fixedly installed on the roller (100); The second blade (300) is slidably mounted on the roller (100), and the second blade (300) can reciprocate along the axial direction of the roller (100); A transmission assembly (400) is connected to the first blade (200). The transmission assembly (400) drives the second blade (300) to reciprocate along the axial direction of the roller (100) so as to cooperate with the first blade (200) to cut the dirt wrapped in the cutting groove (110). An elastic element (800) is disposed on the opposite side of the first blade (200) and / or the second blade (300) so that the second blade (300) abuts against the first blade (200).

2. The roller brush assembly according to claim 1, characterized in that, include: A mounting base (500) is configured to be fixed to a cleaning device, the mounting base (500) being rotatably connected to the roller (100); The transmission assembly (400) is connected to the mounting base (500), and the mounting base (500) drives the transmission assembly (400) to rotate relative to the roller (100), so as to drive the second blade (300) to reciprocate relative to the roller (100) through the transmission assembly (400).

3. The roller brush assembly according to claim 2, characterized in that, The transmission assembly (400) includes: The worm gear (410) is fixedly connected to the mounting base (500); A worm gear (420) is installed inside the drum (100) and meshes with the worm (410). A first eccentric shaft (421) is provided on the worm gear (420). The connecting rod (430) is rotatably connected at one end to the first eccentric shaft (421) and at the other end to the second blade (300).

4. The roller brush assembly according to claim 3, characterized in that, The worm gear (420) includes a meshing part (422) and a wheel axle (423) fixed to each other. The meshing part (422) meshes with the worm (410), and the wheel axle (423) extends at least toward the meshing part (422) away from the first eccentric shaft (421). A second eccentric shaft (424) is provided on the side of the first eccentric shaft (421) away from the worm gear (420). The second eccentric shaft (424) is located at the eccentric part of the first eccentric shaft (421), and the axis of the second eccentric shaft (424) coincides with the axis of the wheel axle (423).

5. The roller brush assembly according to claim 4, characterized in that, A first fixed seat (120) is provided on the end wall of the roller (100), and a second fixed seat is provided on the inner side wall of the roller (100). One of the wheel axle (423) and the second eccentric shaft (424) is rotatably mounted on the first fixed seat (120), and the other is rotatably mounted on the second fixed seat.

6. The roller brush assembly according to claim 3, characterized in that, include: A first tool holder (600) is provided, and the first blade (200) is mounted on the roller (100) via the first tool holder (600); The second tool holder (700) is used to mount the second blade (300) on the drum (100). The connecting rod (430) is rotatably connected to the second tool holder (700) to indirectly rotatably connect to the second blade (300). The connecting rod (430) is provided with two connecting parts (431) at the connection end with the second tool holder (700). The two connecting parts (431) are respectively located on both sides of the second tool holder (700) and connected to the second tool holder (700).

7. The roller brush assembly according to claim 6, characterized in that, The first tool holder (600) includes a bent portion (610) that bends toward the second tool holder (700), and the bent portion (610) has a limiting groove (611); The second tool holder (700) is provided with a limiting block (710), which is disposed in the limiting groove (611) to limit the movement of the second tool holder (700) relative to the first tool holder (600).

8. The roller brush assembly according to claim 3, characterized in that, include: The second tool holder (700) is used to mount the second blade (300) on the drum (100). The connecting rod (430) is rotatably connected to the second tool holder (700) to indirectly rotatably connect to the second blade (300). The second tool holder (700) is provided with a first limiting part, and the inner wall of the roller (100) is provided with a second limiting part. The first limiting part and the second limiting part cooperate to limit the movement of the second tool holder (700) along the axial direction of the roller (100).

9. The roller brush assembly according to claim 2, characterized in that, The transmission assembly (400) includes: A drive shaft (440) is connected to the mounting base (500); A follower (450) is sleeved on the drive shaft (440) and rotatably connected to the drive shaft (440). The axis of the follower (450) is not parallel to the axis of the drive shaft (440). A limit head (451) is provided on the outer wall of the follower (450). The limiting seat (460) is slidably disposed inside the roller (100), the limiting seat (460) is connected to the second blade (300), and the limiting head (451) is connected to the ball head of the limiting seat (460).

10. The roller brush assembly according to claim 9, characterized in that, The outer periphery of the drive shaft (440) is provided with a first groove (441), and the axis of the first groove (441) coincides with the axis of the driven member (450). The inner circumference of the driven member (450) is provided with a second roller groove (452), and a rolling ball (470) is provided between the first roller groove (441) and the second roller groove (452). The rolling ball (470) supports the driven member (450) and is sleeved on the outer circumference of the transmission shaft (440).

11. The roller brush assembly according to claim 9, characterized in that, The transmission assembly (400) includes: A connecting frame (480) connects the limiting seat (460) and the second blade (300).

12. The roller brush assembly according to claim 9, characterized in that, The transmission assembly (400) includes: The gearbox (490) has its input end connected to the mounting base (500) and its output end connected to the drive shaft (440).

13. A cleaning device, characterized in that, include: Equipment body; The roller brush assembly according to any one of claims 1 to 12, wherein the roller brush assembly is rotatably mounted on the main body of the device.

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