Roller brush device and cleaning equipment

Abstract

The present invention relates to a roller brush device and a cleaning device. The roller brush device is applied to the cleaning device. The cleaning device is provided with a mounting shaft and an assembly seat. The mounting shaft is provided with a limiting groove. The roller brush device includes a roller and a fastener mechanism. The fastener mechanism includes a fixed seat, an unlocking member, a first fastener and a second fastener. The first fastener and the second fastener are both provided with an elastically bendable plug-in buckle. The unlocking member is provided with two limiting legs. The mounting shaft is inserted from the plug-in space and pushes the plug-in buckle to elastically deform until the plug-in buckle is elastically buckled into the limiting groove. The limiting legs of the unlocking member are pulled away from the back of the first fastener and the second fastener, and the fastener mechanism drives the roller to detach from the mounting shaft. The first fastener and the second fastener unfold and release the lock on the mounting shaft after the unlocking member is pulled away. During the process of pulling away the unlocking member, the roller brush device is driven to detach from the host device, thereby realizing quick disassembly and assembly.

Description

Technical Field

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

[0002] Existing cleaning equipment is used to clean and process solid waste, so as to keep the corresponding cleaning area clean and hygienic. The cleaning equipment is equipped with a roller brush device to clean the waste and prevent the waste from adhering to the ground or other objects.

[0003] For example, a dual-roller brush sweeping robot disclosed in the document with the announcement number CN114569005A includes a body, a side brush, and a brush member installed inside the body, wherein a first roller brush and a second roller brush are installed inside the body. A roller brush assembly and a cleaning device are disclosed in the document with the announcement number CN117814685A. In addition, for example, Chinese patent CN217244123U discloses a roller brush quick-release structure of a floor scrubber. A multifunctional sweeping machine is disclosed in the announcement number CN107854056A.

[0004] Therefore, household sweepers, cleaning robots and garden tools are equipped with roller brush devices to sweep up waste during use. However, when the roller brush device is assembled to the cleaning equipment, the existing roller brush device is locked with fasteners or buckle structures, which makes it difficult to disassemble and assemble. Alternatively, both ends of the roller brush device need to be fixed with structures, resulting in low axial assembly accuracy of the roller, which affects the service life of the technical problem, and therefore needs to be improved. Summary of the invention

[0005] In order to overcome the problems existing in the related art, an embodiment of the present invention provides a roller brush device and a cleaning device to solve the technical problems of inconvenient disassembly and assembly and low assembly precision.

[0006] According to a first aspect of an embodiment of the present invention, there is provided a roller brush device, which is applied to a cleaning device, wherein the cleaning device is provided with a mounting shaft and an assembly seat fixed to the mounting shaft, and a limiting groove is provided at the end of the mounting shaft:

[0007] The roller brush device comprises a roller and a fastener mechanism installed on the roller, the fastener mechanism comprises a fixed seat fixed to the roller, an unlocking member slidably arranged on the fixed seat, a first fastener and a second fastener relatively movably arranged on the fixed seat, the first fastener and the second fastener are both provided with an elastically bendable plug-in buckle, and an insertion space is formed between the two plug-in buckles;

[0008] The unlocking member is relatively protruding and provided with two limiting legs, the unlocking member is slidably plugged into the fixing seat, the first clip and the second clip are located between the two limiting legs, the first clip and the second clip are elastically pressed against the corresponding limiting legs respectively, so that the opening size of the insertion space is smaller than the minimum shaft diameter of the limiting groove; wherein,

[0009] The installation shaft is inserted from the plug-in space and pushes the plug-in undercut to elastically deform until the plug-in undercut is elastically buckled into the limiting groove, and the roller is plugged and matched with the assembly seat to form an assembly posture;

[0010] The limiting legs of the unlocking member are pulled away from the backs of the first and second latches, and the first and second latches move away from the center of the plug-in space, and the latch mechanism drives the roller to separate from the mounting shaft to form an unlocking posture.

[0011] In one embodiment, the first fastener and the second fastener are symmetrically arranged, the first fastener includes a mounting portion, the plug-in buckle is bent from an end portion of the mounting portion, and the other end of the mounting portion is floatingly restricted to the fixing seat.

[0012] In one embodiment, the plug-in buckle includes a connection area, a deformation area and a snap-on area connected in sequence, a deformation groove is formed between the connection area, the deformation area and the snap-on area, the cross-sectional size of the deformation area is smaller than the cross-sectional size of the connection area, and the cross-sectional size of the snap-on area is triangular.

[0013] In one embodiment, the fixing seat is provided with an installation groove and a deformation groove recessed from one side of the installation groove, the first clip and the second clip are respectively installed relative to the installation groove, the plug-in buckle is inclined toward the deformation groove, and the limiting support leg slides in the deformation groove.

[0014] In one embodiment, the fixing seat includes an unlocking cavity and an installation cavity, the unlocking cavity and the installation cavity are separated by a partition, the installation groove is arranged in the installation cavity, the unlocking piece slides in the unlocking cavity, and the limiting support foot passes through the partition and slides in the installation cavity.

[0015] In one embodiment, an elastic member is installed in the fixing seat, and the unlocking member includes a plug-in column, which is slidably inserted into the installation cavity. The elastic member elastically pushes the plug-in column and the fixing seat to make the fixing seat and the unlocking member floatingly connected.

[0016] In one embodiment, the fastener mechanism includes a limit piece installed at the end of the plug-in column, the elastic piece is sleeved on the plug-in column and the two ends elastically push the limit piece and the installation cavity respectively, and there is a compression stroke between the limit piece and the fixed seat, and the compression stroke is greater than or equal to the locking length of the limit support leg on the first fastener.

[0017] In one embodiment, the fastener mechanism includes a stop pad installed at the opening of the installation cavity, the stop pad is provided with a through hole, and the diameter of the through hole is larger than the shaft diameter of the insertion portion of the installation shaft.

[0018] In one embodiment, the limiting support leg comprises a locking boss with a partially curved surface, and the locking boss corresponds to limiting the back side of the first fastener or the second fastener in the assembly posture.

[0019] According to a second aspect of an embodiment of the present invention, a cleaning device is provided, which includes a main unit and the roller brush device as described above, wherein the main unit is provided with a mounting shaft and an assembly seat, and at least one roller brush device is detachably mounted on the main unit.

[0020] The technical solution provided by the embodiment of the present invention may include the following beneficial effects: the roller brush device is quickly disassembled and connected to the installation shaft of the host device through a fastener mechanism, thereby improving the convenience of disassembly and assembly of the roller brush device. The installation shaft is inserted into the plug-in space, and the first and second clips are connected to the limiting groove by plugging in the reverse buckle to close the clamping installation shaft, and the unlocking member supports and locks the clamping position of the first and second clips through the limiting legs. The first and second clips are unfolded and release the lock on the installation shaft after the unlocking member is pulled out, and the roller brush device is driven to separate from the host device during the process of pulling out the unlocking member, thereby achieving rapid disassembly and assembly.

[0021] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 The present invention is a schematic structural diagram showing the assembly of a roller brush device and a mounting shaft according to an embodiment.

[0024] Figure 2 The figure is a schematic cross-sectional view showing the assembly of a roller brush device and a mounting shaft according to an embodiment.

[0025] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0026] Figure 4 The figure shows an exploded structure of a roller brush device according to an embodiment.

[0027] Figure 5 FIG. 1 is a schematic diagram showing the structure of a first fastener according to an embodiment.

[0028] Figure 6 The figure shows a cross-sectional structural diagram of a roller brush device according to an embodiment.

[0029] Figure 7 The figure shows an exploded structure of a roller brush device according to an embodiment.

[0030] In the figure, the fastener mechanism 10; the unlocking member 11; the limiting support foot 111; the plug-in column 112; the locking boss 113; the fixing seat 12; the mounting groove 121; the partition 122; the guide hole 123; the deformation groove 124; the unlocking cavity 125; the first fastener 13; the connecting area 131; the deformation area 132; the buckling area 133; the mounting portion 134; the plug-in undercut 135; the second fastener 14; the elastic member 15; the limiting member 16; the fastener 17; the stop pad 18; the through hole 181; the air avoidance hole 182; the roller 20; the brush strip 21; the mounting shaft 30; the limiting groove 31; the assembly seat 40; the plug-in portion 41; the positioning ring 42; the strain channel 43. DETAILED DESCRIPTION

[0031] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside", etc. appear to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figures 1 to 4 As shown, the present invention provides a roller brush device, which is applied to a cleaning device. The cleaning device includes a main unit and at least one roller brush device detachably mounted on the main unit, the main unit is provided with a mounting shaft 30 and an assembly seat 40 fixed to the mounting shaft 30, and a limiting groove 31 is provided at the end of the mounting shaft 30. The main unit includes a frame, a power assembly mounted on the frame, and a movable wheel mounted on the bottom of the frame, and the mounting shaft 30 is connected to the power assembly to form a movement. Optionally, the mounting shaft 30 is set as a single-headed shaft to install a roller brush device. Optionally, the mounting shaft 30 is set as a double-headed shaft to symmetrically install two roller brush devices. Preferably, the mounting shaft 30 can be set as one, two or three. The frame is provided with a handle push rod, and the movable wheel can adopt a universal wheel to improve the flexibility of movement and adjustment.

[0035] The assembly seat 40 is fixedly installed with the installation shaft 30. Optionally, the assembly seat 40 and the installation shaft 30 are plugged together to form an interference fit. Optionally, the assembly seat 40 and the installation shaft 30 are plugged together, and the two are locked and matched using fasteners 17. Preferably, the assembly seat 40 includes a hexagonal columnar plug-in portion 41 and a positioning ring 42 located at the end of the plug-in portion 41. The plug-in portion 41 is recessed from the end toward the positioning ring 42 to form a plurality of strain channels 43, and the strain channels 43 are arranged at intervals around the center line. The installation shaft 30 passes through the assembly seat 40 and is fixedly connected to the assembly seat 40.

[0036] The roller brush device includes a roller 20 and a fastener mechanism 10 installed on the roller 20. The roller 20 is configured as a tubular structure, and the roller 20 is provided with an assembly channel running through it. Optionally, the assembly channel is provided with at least one transmission surface, and the fastener mechanism 10 is installed into the assembly channel from one end of the roller 20 and cooperates with the transmission surface to form an assembly and transmission function. Preferably, the assembly channel is configured as a polygonal hole structure, for example, the assembly channel is configured as a quadrilateral, pentagonal or hexagonal hole structure.

[0037] In an optional embodiment, the outer peripheral wall of the drum 20 is provided with a plurality of brush strips 21 distributed in a spiral shape, and the roller brush devices are symmetrically distributed on both sides of the main device, and the brush strips 21 on the outer surfaces of the two drums 20 have opposite spiral directions. The brush strips 21 are distributed at intervals, and drive the garbage to move when the drum 20 rotates. The brush strips 21 are spiral-shaped, and can drive the garbage to move in the center to form an automatic convergence effect. In particular, the two groups of roller brush devices are symmetrically distributed, so that the garbage automatically converges to the middle during the rotation process. In addition, the roller brush devices have the same structure and are respectively assembled on the double-headed shafts, which can achieve symmetrical installation and improve the flexibility of use.

[0038] The fastener mechanism 10 includes a fixed seat 12 fixed to the drum 20, an unlocking member 11 slidably disposed on the fixed seat 12, a first latch 13 and a second latch 14 relatively movably disposed on the fixed seat 12, the first latch 13 and the second latch 14 are both provided with an elastically bent plug-in undercut 135, and a plug-in space is formed between the two plug-in undercuts 135. The fixed seat 12 and the drum 20 are assembled into one body, and the two are fixedly connected. For example, the fixed seat 12 is plugged and connected to the drum 20 by interference fit, and twisting is prevented by the transmission surface. Alternatively, the fixed seat 12 and the drum 20 are locked by a locking member to form a connection.

[0039] The unlocking piece 11 is relatively protruding and has two limiting legs 111. The unlocking piece 11 is slidably inserted into the fixing seat 12. The first latch 13 and the second latch 14 are located between the two limiting legs 111. The first latch 13 and the second latch 14 elastically abut against the corresponding limiting legs 111 respectively, so that the opening size of the plug-in space is smaller than the minimum axial diameter of the limiting groove 31.

[0040] The two limiting legs 111 are cantilever-shaped and arranged opposite to each other, and the unlocking member 11 is inserted into the fixing seat 12 from the assembly channel. One of the limiting legs 111 separates the first clip 13 from the fixing seat 12, and the other limiting leg 111 separates the second clip 14 from the fixing seat 12, thereby pushing the first clip 13 and the second clip 14 to move closer to each other to clamp and limit the installation shaft 30. When the limiting legs 111 are withdrawn from the corresponding limited areas of the first clip 13 and the second clip 14, the first clip 13 and the second clip 14 can be elastically deformed toward the withdrawal area of ​​the limiting legs 111 to release the lock on the installation shaft 30, and the installation shaft 30 can be movably inserted and removed.

[0041] The installation shaft 30 is inserted from the plug-in space and pushes the plug-in undercut 135 to elastically deform until the plug-in undercut 135 is elastically buckled into the limiting groove 31, and the drum 20 is plugged and matched with the assembly seat 40 to form an assembly posture. Preferably, a stepped hole structure is provided at the end of the drum 20, the plug-in portion 41 is inserted into the drum 20, and the positioning ring 42 abuts against the step surface of the drum 20, wherein the strain channel 43 is elastically deformed so that the assembly seat 40 and the drum 20 are plugged and tightly matched, and have good convenience for disassembly and assembly. The installation shaft 30 is inserted into the plug-in space, and the first clip 13 and the second clip 14 are snap-connected to the limiting groove 31 through the plug-in undercut 135 to close the snap-in installation shaft 30, and the unlocking member 11 supports and locks the snapping position of the first clip 13 and the second clip 14 through the limiting support leg 111.

[0042] The limiting legs 111 of the unlocking member 11 are pulled away from the backs of the first and second latching members 13 and 14, and the first and second latching members 13 and 14 move in a direction away from the center of the plug-in space, and the fastener mechanism 10 drives the roller 20 to separate from the mounting shaft 30 to form an unlocking posture. The first and second latching members 13 and 14 are unfolded and unlock the mounting shaft 30 after the unlocking member 11 is pulled away, and the roller brush device is driven to separate from the host device during the process of the unlocking member 11 being pulled away, thereby realizing rapid disassembly and assembly.

[0043] The roller brush device is quickly detachably connected to the mounting shaft 30 of the host device through the fastener mechanism 10, thereby improving the convenience of detaching and assembling the roller brush device.

[0044] The first clip 13 and the second clip 14 are symmetrically arranged, and the structures of the first clip 13 and the second clip 14 are the same. The first clip 13 and the second clip 14 are both curved structures, and are elastically curved at the curved part of the plug-in undercut 135 to adapt to different clipping positions. The first clip 13 and the second clip 14 are long strip structures, and the two are relatively installed in the groove of the fixing seat 12. The first clip 13 is taken as an example for exemplary description below, and the second clip 14 can be understood by reference.

[0045] like Figures 3 to 5 As shown, in one embodiment, the first clip 13 includes a mounting portion 134, a plug-in buckle 135 is bent from the end of the mounting portion 134, and the other end of the mounting portion 134 is floatingly limited to the fixing seat 12. The mounting portion 134 extends from one end of the plug-in buckle 135 to form a barb structure, and the mounting portion 134 provides a connection position between the first clip 13 and the fixing seat 12. The mounting portion 134 has a large length, which can increase the axial installation dimension of the first clip 13, so that the deformation part of the plug-in buckle 135 is far away from the end of the mounting portion 134, thereby providing stable axial elastic deformation and radial elastic deformation.

[0046] Specifically, the limiting leg 111 is inserted into the fixing seat 12 and pushes the plugging undercut 135 to protrude toward the middle side, and the mounting portion 134 is squeezed by the limiting leg 111 and maintains an elastic bending state, and the bending force is directed away from the center of the fixing seat 12. In addition, the plugging undercut 135 is squeezed by the mounting shaft 30 and elastically deformed, and the mounting portion 134 is further elastically deformed by the squeezing force transmitted by the plugging undercut 135. Accordingly, the plugging undercut 135 is further clamped by the mounting shaft 30 by the reverse force of the mounting portion 134.

[0047] In an optional embodiment, the plug-in undercut 135 includes a connection area 131, a deformation area 132 and a buckle area 133 connected in sequence, and a deformation groove 124 is formed between the connection area 131, the deformation area 132 and the buckle area 133. The deformation area 132 is located between the connection area 131 and the buckle area 133, and the deformation area 132 is provided with an arc-shaped curved structure. The cross-sectional size of the deformation area 132 is smaller than the cross-sectional size of the connection area 131, and the cross-sectional size of the deformation area 132 is smaller than the cross-sectional size of the buckle area 133. Preferably, the inner side surface of the connection area 131 and the inner side surface of the buckle area 133 intersect at an angle of less than 90 degrees, so that the plug-in undercut 135 is buckled into the limiting groove 31 to form an elastic buckle structure. The connection area 131 is subjected to elastic force and transmitted to the mounting portion 134, wherein the connection area 131 is inclined relative to the inner side surface of the buckle area 133. Preferably, the size of the connection area 131 gradually increases from the mounting portion 134 toward the deformation area 132 , and the end of the connection area 131 is arranged in a curved surface.

[0048] The cross section of the snap-in area 133 is triangular, and the size of the snap-in area 133 gradually decreases from the deformation area 132 to the end, wherein one side of the inclined surface faces the insertion side of the installation shaft 30, and the inner side surface is used for snap-locking the limiting groove 31 to form a locking structure.

[0049] The connection area 131, the deformation area 132 and the buckle area 133 form an integrated structure, and the overall structure is stable. The setting of the overall structure can not only realize the generation of comprehensive elastic force, but also realize the effective locking and unlocking of the installation shaft 30 in a limited space.

[0050] In a preferred embodiment, the mounting portion 134 is configured as a metal sheet, and the end of the metal sheet is bent and extended from the connecting portion to the buckle area 133. The metal sheet is connected to the plug-in buckle 135 as a whole to enhance the overall structural strength and elastic performance of the first buckle 13, so that the first buckle 13 and the second buckle 14 can be engaged and locked with the mounting shaft 30. The bending curve of the metal sheet is adapted to the shape of the plug-in buckle 135, so that the elastic locking force can be improved, and the roller brush device is prevented from being unhooked when vibrating and rotating, and has a suitable elastic reset force.

[0051] The fixing seat 12 is used to install the first clip 13 and the second clip 14, wherein the fixing seat 12 is provided with a mounting groove 121 and a deformation groove 124 recessed from one side of the mounting groove 121, the first clip 13 and the second clip 14 are respectively mounted relatively to the mounting groove 121, the plug-in undercut 135 is inclined toward the deformation groove 124, and the limiting leg 111 slides in the deformation groove 124. The deformation groove 124 and the mounting groove 121 are groove structures, wherein the deformation groove 124 is a groove structure formed by a partial depression of the groove wall of the mounting groove 121, the first clip 13 is mounted in the mounting groove 121 and the plug-in undercut 135 can be bent and moved toward the deformation groove 124.

[0052] The deformation groove 124 can provide deformation space for the plug-in buckle 135, and can also provide activity space for the sliding and limiting of the limit support leg 111. Among them, the support part of the limit support leg 111 for the plug-in buckle 135 is located in the deformation groove 124, which can effectively control the two sides and the back of the plug-in buckle 135, and only retain the activity space of the front buckle area 133 of the plug-in buckle 135, so that the power operation is reliable and the buckle activity trajectory is controllable.

[0053] Preferably, the depression depth of the deformation groove 124 is less than or equal to the thickness of the limiting leg 111 , so as to control the limiting leg 111 to be able to adjust the mating position of the plug-in undercut 135 .

[0054] In one embodiment, the fixing seat 12 includes an unlocking cavity 125 and an installation cavity, and the unlocking cavity 125 and the installation cavity are separated by a partition 122. Cavity structures are provided at both ends of the fixing seat 12 to divide different functional areas. The partition 122 is provided with a through hole structure to connect the two cavities. Among them, the installation groove 121 is provided in the installation cavity, the unlocking member 11 slides in the unlocking cavity 125, and the limiting leg 111 passes through the partition 122 and slides in the installation cavity.

[0055] The unlocking member 11 is located in the unlocking cavity 125 and faces the outside of the roller brush device, and the installation cavity is used to plug and match the installation shaft 30 to form an assembly structure. The first buckle 13 and the second buckle 14 are located in the installation cavity and cooperate with the limiting support foot 111 to lock and unlock the installation shaft 30.

[0056] like Figures 3 to 7As shown, preferably, the fastener mechanism 10 includes a stop pad 18 installed at the opening of the installation cavity, and the stop pad 18 is provided with a through hole 181, and the aperture of the through hole 181 is larger than the diameter of the insertion portion of the installation shaft 30. The stop pad 18 closes the opening of the installation cavity, and at the same time, the stop pad 18 also closes the first fastener 13 and the second fastener 14 in the installation cavity. There is a movable gap between the stop pad 18 and the top of the plug-in undercut 135, and the movable gap is used for the floating setting of the installation shaft 30 and the fastener assembly, and the stop pad 18 can further limit the reverse withdrawal of the installation shaft 30 from the roller brush device.

[0057] The center of the stop pad 18 is provided with a through hole 181 for insertion and extraction of the mounting shaft 30. The first and second latches 13 and 14 are formed with trumpet-shaped guide slopes corresponding to the through hole 181 to form a circular centering guide, thereby reducing insertion resistance and maintaining appropriate plugging and extraction flexibility.

[0058] Furthermore, an elastic member 15 is installed in the fixing seat 12, and the unlocking member 11 includes a plug-in column 112. The plug-in column 112 is slidably inserted into the installation cavity, and the elastic member 15 elastically pushes the plug-in column 112 and the fixing seat 12, so that the fixing seat 12 and the unlocking member 11 are floatingly connected. The elastic member 15 connects the plug-in column 112 and the fixing seat 12 to form a telescopic activity of the unlocking member 11 relative to the fixing seat 12. The telescopic activity can realize the floating connection between the roller brush device and the installation shaft 30, and can adapt to the floating cleaning of the cleaning equipment under different working conditions and different cleaning angles, greatly improving the cleaning efficiency of the roller brush device.

[0059] Preferably, the elastic member 15 is configured as a compression spring to facilitate assembly and connection. The plug-in column 112 passes through the partition 122 in the center and extends into the installation cavity. The elastic member 15 is located in the installation cavity and is sleeved on the plug-in column 112. The plug-in column 112 directly or indirectly locks the end of the elastic member 15 to drive the unlocking member 11 to have an elastic preload force toward the installation cavity. In addition, the elastic preload force can also keep the limiting leg 111 always inserted into the installation cavity, thereby keeping the first clip 13 and the second clip 14 in a locked state.

[0060] Furthermore, the fastener mechanism 10 includes a stopper 16 installed at the end of the plug-in column 112, and the elastic member 15 is sleeved on the plug-in column 112 and elastically pushes the stopper 16 and the installation cavity at both ends. The outer diameter of the stopper 16 is larger than the outer diameter of the plug-in column 112, and the outer diameter of the stopper 16 is larger than the outer diameter of the elastic member 15. The stopper 16 is locked to the plug-in column 112 by a fastener 17 to facilitate disassembly and assembly.

[0061] like Figures 3 to 7As shown, the fixing seat 12 is provided with a step hole, the plug-in column 112 is plugged into the step hole, the elastic member 15 extends along the center line of the step hole, and the outer diameter of the stopper 16 is larger than the aperture of the small hole of the step hole. There is a compression stroke between the stopper 16 and the fixing seat 12, and the compression stroke is greater than or equal to the locking length of the stopper leg 111 on the first clip 13. The unlocking member 11 is twitched along the center line direction to release the locking of the stopper leg 111 on the first clip 13 and the second clip 14, wherein the twitching distance needs to be greater than the locking length to meet the unlocking condition. The compression stroke is greater than the locking length, which can not only meet the unlocking condition, but also drive the entire roller brush device to be separated from the installation shaft 30 after the stopper 16 abuts against the fixing seat 12, thereby realizing disassembly without the need for an additional disassembly and assembly structure. When the fastener mechanism 10 is buckled into the connection installation shaft 30, the installation shaft 30 is directly inserted along the through hole 181 and pushes the first clip 13 and the second clip 14 to be elastically bent and deformed, thereby realizing rapid assembly. The roller brush device can be disassembled and assembled as a whole without the need for spiral connection. The disassembly and assembly efficiency is high and the device can be assembled as a whole when it leaves the factory, which greatly reduces costs and improves user experience.

[0062] The limiting leg 111 provides sliding support for the back of the first clip 13 to release and eliminate the elastic deformation space, thereby achieving the unlocking and locking effect. The limiting leg 111 is a cantilever structure, and two guide holes 123 are provided on the interlayer 122. The two limiting legs 111 slide through the guide holes 123 to form a directional sliding structure, and the sliding track and sliding stroke are highly controllable. The limiting leg 111 is set as a columnar structure, and an inclined guide surface is set at the end of the limiting leg 111. The guide surface can be set as a curved surface or an inclined plane to guide the back of the first clip 13 and the gap between the fixed seat 12, so as to gradually push the plug-in buckle 135 to be snap-connected to the limiting groove 31. At the same time, the limiting leg 111 and the plug-in buckle 135 constitute a mutually supporting and matching structure, so that the limiting groove 31 can be matched to lock and unlock.

[0063] In a preferred embodiment, the limiting support leg 111 includes a locking boss 113 with a partially curved surface, and the locking boss 113 corresponds to the back of the first clip 13 or the second clip 14 in the assembly posture. The locking boss 113 is protruded toward the center direction to form a local tension support. Preferably, the center position of the locking boss 113 is aligned with the middle plane of the limiting groove 31 in the assembly posture, so that the locking boss 113 can push the first clip 13 tightly to the position of the limiting groove 31 to locally strengthen the first clip 13, so that the plug-in undercut 135 forms an internal stress that is tensioned from the center to both sides at the corresponding position of the limiting groove 31, and the locking force of the unlocking member 11 is increased.

[0064] In another embodiment, the locking boss 113 is buckled on the end of the plug-in buckle 135 after passing over the plug-in buckle 135 in the assembly posture, thereby realizing the buckle structure. The limiting leg 111 limits the back of the first buckle 13, and the locking boss 113 limits the top and back of the plug-in buckle 135, which can not only enhance the locking effect of the plug-in buckle 135 on the limiting groove 31, but also effectively reduce the malfunction of the unlocking member 11 when the roller brush device vibrates during operation.

[0065] Preferably, a clearance hole 182 is opened in the stop pad 18 , and the clearance hole 182 is located in the sliding direction of the limiting support leg 111 , which can not only reduce the overall axial space size, but also provide external space for the sliding of the limiting support leg 111 .

[0066] The application of the roller brush device on the cleaning equipment can realize the rapid disassembly and replacement of the brush head. The operation is convenient and the structure is simple. No external tools are required, and the replacement operation is achieved through the internal structure, which greatly reduces the operating requirements.

[0067] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The description and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0068] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A roller brush device, used in cleaning equipment, characterized in that: The cleaning device is provided with a mounting shaft and an assembly seat fixed to the mounting shaft, and the end of the mounting shaft is provided with a limiting groove: The roller brush device comprises a roller and a fastener mechanism installed on the roller, the fastener mechanism comprises a fixed seat fixed to the roller, an unlocking member slidably arranged on the fixed seat, a first fastener and a second fastener relatively movably arranged on the fixed seat, the first fastener and the second fastener are both provided with an elastically bendable plug-in buckle, and an insertion space is formed between the two plug-in buckles; The unlocking member is relatively protruding and provided with two limiting legs, the unlocking member is slidably plugged into the fixing seat, the first clip and the second clip are located between the two limiting legs, the first clip and the second clip are elastically pressed against the corresponding limiting legs respectively, so that the opening size of the insertion space is smaller than the minimum shaft diameter of the limiting groove; wherein, The installation shaft is inserted from the plug-in space and pushes the plug-in undercut to elastically deform until the plug-in undercut is elastically buckled into the limiting groove, and the roller is plugged and matched with the assembly seat to form an assembly posture; The limiting legs of the unlocking member are pulled away from the backs of the first and second latching members, the first and second latching members move in a direction away from the center of the plug-in space, and the latch mechanism drives the roller to separate from the mounting shaft to form an unlocking posture; The fixing seat is provided with an installation groove and a deformation groove recessed from one side of the installation groove, the first clip and the second clip are respectively installed in the installation groove relative to each other, the plug-in undercut is inclined toward the deformation groove, and the limiting support leg slides in the deformation groove.

2. The roller brush device according to claim 1, characterized in that: The first clip and the second clip are symmetrically arranged, the first clip includes a mounting portion, the plug-in buckle is bent from an end of the mounting portion, and the other end of the mounting portion is floatingly restricted to the fixing seat.

3. The roller brush device according to claim 2, characterized in that: The plug-in buckle includes a connecting area, a deformation area and a snap-on area connected in sequence, a deformation groove is formed between the connecting area, the deformation area and the snap-on area, the cross-sectional size of the deformation area is smaller than the cross-sectional size of the connecting area, and the cross-sectional size of the snap-on area is triangular.

4. The roller brush device according to claim 1, characterized in that: The fixing seat comprises an unlocking cavity and an installation cavity, wherein the unlocking cavity and the installation cavity are separated by a partition, the installation groove is arranged in the installation cavity, the unlocking member slides in the unlocking cavity, and the limiting support foot passes through the partition and slides in the installation cavity.

5. The roller brush device according to claim 4, characterized in that: An elastic member is installed in the fixing seat, and the unlocking member includes a plug-in column, which is slidably inserted into the installation cavity. The elastic member elastically pushes the plug-in column and the fixing seat to make the fixing seat and the unlocking member floatingly connected.

6. The roller brush device according to claim 5, characterized in that: The fastener mechanism includes a limit piece installed at the end of the plug-in column, the elastic piece is sleeved on the plug-in column and the two ends elastically push the limit piece and the installation cavity respectively, and there is a compression stroke between the limit piece and the fixed seat, and the compression stroke is greater than or equal to the locking length of the limit support leg on the first fastener.

7. The roller brush device according to claim 4, characterized in that: The fastener mechanism comprises a stop pad installed at the opening of the installation cavity, the stop pad is provided with a through hole, and the hole diameter of the through hole is larger than the shaft diameter of the insertion part of the installation shaft.

8. The roller brush device according to claim 1, characterized in that: The limiting support leg comprises a locking boss with a partially curved surface, and the locking boss corresponds to limiting the back side of the first buckle or the second buckle in an assembly posture.

9. A cleaning device, characterized in that: The cleaning device comprises a main unit and a roller brush device as claimed in any one of claims 1 to 8, wherein the main unit is provided with a mounting shaft and an assembly seat, and at least one roller brush device is detachably mounted on the main unit.

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