Spiral roller brush assembly and sweeper

Abstract

The present application provides a spiral roller brush assembly and a sweeper; the spiral roller brush assembly includes: a roller brush bracket, a roller brush and a supporting assembly, the roller brush is installed in the roller brush bracket and can rotate relative to the roller brush bracket, the first end of the roller brush is larger than the second end of the roller brush, the first end of the roller brush is connected to the first end of the roller brush bracket, and the supporting assembly is installed at the second end of the roller brush bracket. Under the action of external force, the supporting assembly can be extended into the roller brush bracket and connected to the second end of the roller brush and can rotate with the roller brush. Therefore, both ends of the roller brush can be connected to other components, which can solve the problem in the prior art that one side of the roller brush is suspended in the air, causing the roller brush to shake violently when rotating at high speed, causing a lot of noise, and is not conducive to the structural stability of the entire machine.

Description

Technical Field

[0001] The present application relates to the field of smart home devices, and in particular to a spiral roller brush assembly and a sweeper. Background Art

[0002] With the development of smart home devices, more and more smart home devices have entered ordinary households to provide convenient services to users. Sweeping machines are becoming more and more popular with users due to their automatic cleaning function and have become a commonly used household cleaning device. During the movement of the sweeping machine, the roller brush and fan installed inside it cooperate to collect debris on the ground into the dust box inside the sweeping machine.

[0003] However, when the sweeper is performing cleaning tasks, hair, wool and other linear garbage can easily get entangled on the roller brush of the cleaning machine and be difficult to clean up. This can easily damage the roller brush and even get entangled on the output shaft of the motor, causing the motor to burn out.

[0004] To solve this problem, the roller brushes of sweepers currently on the market are designed with a cone-like structure, with one end larger than the other. The motor drives the large end of the roller brush to rotate, leaving a gap at the small end. Trash enters through the large end due to internal suction, and moves toward the small end along with the rotation of the roller brush and the airflow. If linear debris gets entangled in the large end of the roller brush, it will loosen due to the smaller diameter of the roller brush. The roller brush rotates and moves with the airflow until it reaches the small end, where it is sucked into the trash bin through the gap next to the small end.

[0005] However, in this way, one side of the roller brush will be in a suspended state and perform high-speed rotation, which will cause the roller brush to vibrate violently and even cause the components near the roller brush to vibrate together, which will not only cause a lot of noise, but also be detrimental to the structural stability of the entire machine. Summary of the Invention

[0006] The present application provides a spiral roller brush assembly and a sweeper, which are intended to solve the problem in the prior art that the roller brush structure vibrates violently, causing not only a lot of noise but also being detrimental to the structural stability of the entire machine.

[0007] In the first aspect, the present application provides a spiral roller brush assembly, comprising: a roller brush bracket, a roller brush and a supporting assembly, wherein the roller brush is installed in the roller brush bracket and can rotate relative to the roller brush bracket, the first end of the roller brush is larger than the second end of the roller brush, the first end of the roller brush is connected to the first end of the roller brush bracket, the supporting assembly is installed at the second end of the roller brush bracket, the supporting assembly can be extended into the roller brush bracket and connected to the second end of the roller brush and can rotate with the roller brush.

[0008] Preferably, the supporting assembly includes: a component bracket, a transmission device and a rotating assembly, the component bracket is connected to the roller brush bracket, the transmission device extends from the end of the component bracket away from the roller brush bracket toward the end close to the roller brush bracket, and the rotating assembly is arranged at the end of the component bracket close to the roller brush bracket. Under the driving action of the transmission device, the rotating assembly extends into the roller brush bracket and is connected to the roller brush and can rotate with the roller brush.

[0009] Preferably, a movable groove is provided at one end of the component bracket close to the roller brush bracket, the rotating component is arranged in the movable groove and can move in the movable groove, the first end of the rotating component is connected to the transmission device, and under the driving action of the transmission device, the second end of the rotating component extends into the roller brush bracket and is connected to the roller brush, and a first clamping structure is provided at one end of the movable groove close to the roller brush bracket, and the first clamping structure is used to limit the moving stroke of the rotating component within the movable groove.

[0010] Preferably, the rotating component includes a rotating bracket, an axial rod and an axial rod sleeve. The rotating bracket is connected to the transmission device. A cavity for accommodating the axial rod sleeve is provided in the rotating bracket. The first end of the axial rod is connected to the rotating bracket. The second end of the axial rod extends in a direction close to the component bracket. The axial rod sleeve is sleeved on the axial rod from the second end of the axial rod. Under the driving action of the transmission device, the second end of the axial rod sleeve extends into the roller brush bracket and is connected to the roller brush.

[0011] Preferably, the shaft sleeve includes a clamping portion and a telescopic shaft, the clamping portion is arranged in the cavity, the telescopic shaft extends from the cavity toward the direction close to the component bracket, and the extended end of the telescopic shaft has a clamping portion for connecting with the roller brush.

[0012] Preferably, the diameter of the telescopic shaft gradually decreases towards the direction approaching the roller brush bracket.

[0013] Preferably, a second holding structure is provided at one end of the cavity close to the roller brush bracket, and the second holding structure is used to hold the holding portion in the cavity.

[0014] Preferably, the transmission device includes a driving device, a transmission shaft, a threaded sleeve, a telescopic slider and a connecting member; the first end of the transmission shaft is arranged at an end of the component bracket away from the roller brush bracket, the second end of the transmission shaft extends into the threaded sleeve, the telescopic slider is arranged on the transmission shaft, and a thread is provided on the circumferential direction of the telescopic slider, the telescopic slider cooperates with the threaded sleeve through the thread, the first end of the connecting member is connected to the telescopic slider, and the second end of the connecting member is connected to the rotating component, the output shaft of the driving device is transmission-connected to the transmission shaft, and the driving device can drive the transmission shaft to rotate relative to the component bracket, drive the telescopic slider to move in the threaded sleeve, and then make the rotating component extend into the roller brush bracket and connect with the roller brush.

[0015] Preferably, a third clamping structure is provided in the component bracket, and the third clamping structure is used to limit the threaded sleeve or the telescopic slider.

[0016] Preferably, fourth clamping structures are provided at both ends of the threaded sleeve, and the fourth clamping structures are used to limit the moving stroke of the telescopic slider within the threaded sleeve.

[0017] Preferably, the connecting member is a spring.

[0018] Preferably, the transmission device further includes a reduction gear, which is arranged on the transmission shaft, and the output shaft of the driving device is in transmission connection with the reduction gear.

[0019] Preferably, an isolation plate is provided on one side of the second end of the roller brush holder close to the roller brush. When the abutment assembly extends into the roller brush holder, the isolation plate is propped open by the abutment assembly. When the abutment assembly withdraws from the roller brush holder, the isolation plate is restored to prevent garbage from being brought out of the roller brush holder.

[0020] In a second aspect, the present application also provides a sweeping machine, which is provided with a spiral roller brush assembly as described in any one of the above items.

[0021] The present application provides a spiral roller brush assembly, comprising: a roller brush bracket, a roller brush and a supporting assembly, wherein the roller brush is installed in the roller brush bracket and can rotate relative to the roller brush bracket, the first end of the roller brush is larger than the second end of the roller brush, the first end of the roller brush is connected to the first end of the roller brush bracket, and the supporting assembly is installed at the second end of the roller brush bracket. Under the action of external force, the supporting assembly can be extended into the roller brush bracket and connected to the second end of the roller brush and can rotate with the roller brush. Therefore, both ends of the roller brush can be connected to other components, which can solve the problem in the prior art that one side of the roller brush is suspended in the air, causing the roller brush to shake violently and cause a lot of noise when rotating at high speed, which is not conducive to the structural stability of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A cross-sectional view of a spiral roller brush assembly when the supporting assembly is connected to the roller brush in one embodiment Figure 1 ;

[0023] Figure 2 A cross-sectional view of the spiral roller brush assembly when the supporting assembly releases the roller brush in one embodiment Figure 2 ;

[0024] Figure 3 for Figure 1 A partially enlarged schematic diagram of a spiral roller brush assembly;

[0025] Figure 4 This is a schematic structural diagram of a spiral roller brush assembly according to an embodiment;

[0026] Among them, 1. roller brush bracket; 11. isolation plate; 2. roller brush; 3. holding component; 31. component bracket; 311. movable groove; 312. first holding structure; 32. transmission device; 321. driving device; 322. transmission shaft; 323. threaded sleeve; 324. telescopic slider; 325. connecting piece; 326. reduction gear; 33. rotating component; 331. rotating bracket; 332. shaft rod; 333. shaft rod sleeve; 3331. holding part; 3332. telescopic shaft; 3333. second holding structure; 34. third holding structure.

[0027] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] Reference Figure 1-4 , is a spiral roller brush assembly provided by the present application, comprising: a roller brush bracket 1, a roller brush 2 and a supporting assembly 3, the roller brush 2 is installed in the roller brush bracket 1 and can rotate relative to the roller brush bracket 1, the first end of the roller brush 2 is larger than the second end of the roller brush 2, the first end of the roller brush 2 is connected to the first end of the roller brush bracket 1, the supporting assembly 3 is installed at the second end of the roller brush bracket 1, the supporting assembly 3 can extend into the roller brush bracket 1 and be connected to the second end of the roller brush 2 and can rotate with the roller brush 2.

[0031] As described above, the spiral roller brush assembly provided in this embodiment includes: a roller brush bracket 1, a roller brush 2 and a supporting assembly 3. The roller brush 2 is installed in the roller brush bracket 1 and can rotate relative to the roller brush bracket 1. The roller brush bracket 1 is provided with a bracket opening opened toward the ground. A soft rubber brush is provided on the surface of the roller brush 2. The soft rubber brush on the surface of the roller brush 2 contacts the ground through the bracket opening, sweeping away the debris and garbage adhering to the ground, and then the debris and garbage are sucked into the dust box through the fan of the sweeper. The roller brush 2 is large at one end and small at the other end. The conical structure is set to a conical structure. When the linear garbage is entangled with the large end of the roller brush 2, in the process of the linear garbage following the rotation of the roller brush 2 and moving from the large end to the small end, as the diameter of the roller brush 2 becomes smaller, the garbage entanglement will become loose, and eventually it will rotate with the roller brush 2 and the airflow until it reaches the small end, and be sucked into the garbage bin from the gap beside the small end by the airflow generated by the fan; the first end of the roller brush 2 is connected to the first end of the roller brush bracket 1, that is, the large end of the roller brush 2 will be installed on the roller brush bracket 1, and will be connected to the roller brush bracket 1. The roller brush drive motor near the roller brush bracket 1 is connected. In order to clean up the linear garbage wrapped around the roller brush 2, the small end will be suspended in the air. However, when one side of the roller brush 2 is suspended in the air, if it rotates at high speed, it will cause the roller brush 2 to shake violently, thereby causing a lot of noise. Therefore, in this application, a retractable abutment component 3 is provided at the roller brush bracket 1 at the other end of the roller brush 2. When cleaning is required, the abutment component 3 can be controlled to extend from the outside of the roller brush bracket 1 into the roller brush bracket 1 and abut against the roller brush 2. It is worth mentioning that A groove can be opened at the end face of the small end of the roller brush 2 to accommodate the inserted supporting component 3, so that the supporting component 3 can be inserted into the groove and can be connected with the roller brush 2, so that the supporting component 3 can support and fix the roller brush 2 and rotate with the roller brush 2, which can reduce the generation of noise and shaking. When it is necessary to deal with the linear garbage wrapped around the roller brush, the supporting component 3 is controlled to be pulled out from the roller brush bracket 1, so that the small end of the roller brush 2 and the roller brush bracket 1 make enough space to facilitate the airflow generated by the fan to suck the linear garbage into the trash can.

[0032] In one embodiment, the supporting component 3 includes: a component bracket 31, a transmission device 32 and a rotating component 33. The component bracket 31 is connected to the roller brush bracket 1. The transmission device 32 extends from the end of the component bracket 31 away from the roller brush bracket 1 toward the end close to the roller brush bracket 1. The rotating component 33 is arranged at the end of the component bracket 31 close to the roller brush bracket 1. Under the driving action of the transmission device 32, the rotating component 33 extends into the roller brush bracket 1 and is connected to the roller brush 2 and can rotate with the roller brush 2.

[0033] As described above, the supporting component 3 includes: a component bracket 31, a transmission device 32 and a rotating component 33, wherein the component bracket 31 is arranged at the end of the roller brush bracket 1 close to the small end of the roller brush 2, wherein the contact point of the two is provided with an opening that can accommodate the rotating component 33 to enter and exit the roller brush bracket 1, and the transmission device 32 is installed at the end of the component bracket 31 away from the roller brush bracket 1. The transmission device 32 can drive the rotating component 33 to move, so that the rotating component 33 can be extended into the roller brush bracket 1 or pulled out from the roller brush bracket 1. When the rotating component 33 is extended into the roller brush bracket 1 and connected with the roller brush 2, under the driving action of the roller brush driving motor, the rotating component can rotate with the roller brush 2, that is, the rotating component can be extended from the component bracket 31 into the roller brush bracket 1 and connected with the roller brush 2, thereby providing support for the small end (suspended end) of the roller brush 2.

[0034] In one embodiment, a movable groove 311 is provided at one end of the component bracket 31 close to the roller brush bracket 1, and the rotating component 33 is arranged in the movable groove 311 and can move in the movable groove 311. The first end of the rotating component 33 is connected to the transmission device 32. Under the driving action of the transmission device 32, the second end of the rotating component 33 extends into the roller brush bracket 1 and is connected to the roller brush 2. The movable groove 311 is provided at one end close to the roller brush bracket 1 with a first clamping structure 312, and the first clamping structure 312 is used to limit the moving stroke of the rotating component 33 within the movable groove 311.

[0035] As described above, the component bracket 31 is provided with a movable groove 311 at one end close to the roller brush bracket 1. The movable groove 311 is a structure with two open ends. The first end of the rotating component 33 is connected to the transmission device 32. The rotating component 33 is arranged in the movable groove 311 and can move left and right in the movable groove 311 under the driving action of the transmission device 32, so that the second end of the rotating component 33 extends into the roller brush bracket 1 and is connected to the roller brush 2. Further, in order to enable the rotating component 33 to move smoothly in the movable groove 311, the inner surface of the movable groove 311 should be smooth to reduce sliding. The friction between the two, at the same time, in order to prevent tilting and rolling over during the sliding process, the rotating component 33 should be provided with sufficient thickness so that the surface of the rotating component 33 has a sufficiently long contact portion with the movable groove 311 to ensure that tilting and rolling over will not occur during the sliding process. The movable groove 311 is provided with a first holding structure 312 at one end close to the roller brush bracket 1. The first holding structure 312 can enable the movable groove 311 to limit the moving stroke of the rotating component 33 to the movable groove 311, and the entire rotating component 33 will not be disengaged due to excessive stroke.

[0036] In one embodiment, the rotating component 33 includes a rotating bracket 331, an axial rod 332 and an axial rod sleeve 333. The rotating bracket 331 is connected to the transmission device 32. A cavity for accommodating the axial rod sleeve 333 is provided in the rotating bracket 331. The first end of the axial rod 332 is connected to the rotating bracket 331, and the second end of the axial rod 332 extends toward the direction close to the component bracket 31. The axial rod sleeve 333 is sleeved on the axial rod 332 from the second end of the axial rod 332. Under the driving action of the transmission device 32, the second end of the axial rod sleeve 333 extends into the roller brush bracket 1 and is connected to the roller brush 2.

[0037] As described above, the rotating component 33 includes a rotating bracket 331, an axial rod 332 and an axial rod sleeve 333. A cavity for accommodating the axial rod sleeve 333 is provided in the rotating bracket 331, wherein the side of the rotating bracket 331 close to the transmission device 32 will extend toward the direction close to the transmission device 32 or toward the direction away from the transmission device 32 to form a rotating shaft mounting groove for mounting the axial rod 332. The axial rod 332 is fixed in the rotating shaft mounting groove and extends toward the direction close to the component bracket 31. The axial rod sleeve 333 is sleeved on the axial rod 332. The contact between the axial rod sleeve 333 and the axial rod 332 should be smooth enough to reduce the friction when the two rotate relative to each other. In some embodiments, the shaft rod sleeve 333 and the shaft rod 332 can also be fixedly arranged, that is, no relative rotation occurs, but the roller brush 2 can rotate relative to the end of the shaft rod sleeve 333. The output end of the transmission device 32 is connected to the rotating bracket 331. Under the driving action of the driving device, the second end of the shaft sleeve 333 extends into the roller brush bracket 1 and is connected to the roller brush 2. Since the contact between the shaft rod sleeve 333 and the shaft rod 332 is smooth enough, when the roller brush 2 rotates, the shaft rod sleeve 333 can rotate with the roller brush 2. When it is necessary to clean the linear garbage wrapped around the small head end, the transmission device 32 is driven to separate the shaft rod sleeve 333 from the roller brush 2 and pull it out of the roller brush bracket 1.

[0038] Reference Figure 3 In one embodiment, the shaft sleeve 333 includes a clamping portion 3331 and a telescopic shaft 3332, the clamping portion 3331 is arranged in the cavity, the telescopic shaft 3332 extends from the cavity toward the direction close to the component bracket 31, and the protruding end of the telescopic shaft 3332 has a clamping portion for connecting with the roller brush.

[0039] In one embodiment, the diameter of the telescopic shaft 3332 gradually decreases toward the roller brush bracket 1 .

[0040] As described above, the shaft sleeve 333 includes a holding portion 3331 and a telescopic shaft 3332, wherein the holding portion 3331 is confined in the cavity, and the telescopic shaft 3332 extends from the cavity toward the component bracket 31. Under the action of the transmission device 32, the telescopic shaft 3332 penetrates into the roller brush 2 to complete the connection with the roller brush 2. The diameter of the telescopic shaft 3332 gradually becomes smaller toward the roller brush bracket 1. Furthermore, a groove for accommodating the telescopic shaft 3332 can be provided at the small head end of the roller brush 2, and the telescopic shaft 3332 can be a conical structure extending toward the roller brush 2, and can be a triangular pyramid or other polygonal conical structure, and the groove is configured as a triangular pyramid groove or other polygonal conical groove matching the telescopic shaft 3332, so that the two can fit perfectly without relative rotation.

[0041] In one embodiment, a second holding structure 3333 is provided at one end of the cavity close to the roller brush bracket 1 , and the second holding structure 3333 is used to hold the holding portion 3331 in the cavity.

[0042] As described above, a second clamping structure 3333 is provided at one end of the cavity close to the roller brush bracket 1. In addition to clamping the clamping part 3331 inside and outside the cavity, when the transmission device 32 pulls the shaft rod sleeve 333 out of the roller brush bracket 1, the second clamping structure 3333 can also support the clamping part 3331 and apply a force to the clamping part 3331, so that the shaft rod sleeve 333 can be pulled out of the roller brush bracket 1 together with the rotating bracket 331.

[0043] Reference Figure 2 In one embodiment, the transmission device 32 includes a driving device 321, a transmission shaft 322, a threaded sleeve 323, a telescopic slider 324 and a connecting member 325; the first end of the transmission shaft 322 is arranged at an end of the component bracket 31 away from the roller brush bracket 1, the second end of the transmission shaft 322 extends into the threaded sleeve 323, the telescopic slider 324 is arranged on the transmission shaft 322, and the telescopic slider 324 is provided with a thread in the circumferential direction. The telescopic slider 324 cooperates with the threaded sleeve 323 through the thread, the first end of the connecting member 325 is connected to the telescopic slider 324, and the second end of the connecting member 325 is connected to the rotating component 33. The output shaft of the driving device 321 is in transmission connection with the transmission shaft 322. The driving device 321 can drive the transmission shaft 322 to rotate relative to the component bracket 31, drive the telescopic slider 324 to move in the threaded sleeve 323, and thereby make the rotating component 33 extend into the roller brush bracket 1 and connect with the roller brush 2.

[0044] As described above, the transmission device 32 includes a driving device 321, a transmission shaft 322, a threaded sleeve 323, a telescopic slider 324 and a connecting piece 325, wherein the component bracket 31 is provided with a transmission shaft 322 mounting groove extending in a direction close to the shaft rod sleeve 333 or in a direction away from the shaft rod sleeve 333 (i.e., toward the inside or outside of the component bracket 31) for mounting the transmission shaft 322, the transmission shaft 322 is mounted in the transmission shaft 322 mounting groove and is connected to the driving device 321 (motor), the second end of the transmission shaft 322 extends toward the threaded sleeve 323 and extends into the threaded sleeve 323, the telescopic slider 324 is provided on the transmission shaft 322, the inner diameter of the threaded sleeve 323 is the same as the diameter of the telescopic slider 324, and the telescopic slider 324 is provided on the transmission shaft 322. 4 is provided with a thread in the circumferential direction, and a thread is also provided in the threaded sleeve 323. The telescopic slider 324 is matched with the threaded sleeve 323 through threads. One end of the connecting piece 325 is connected to the telescopic slider 324, and the other end is connected to the rotating component 33. When the driving device 321 is working, it can drive the transmission shaft 322 to rotate relative to the component bracket 31, and the telescopic slider 324 threadedly matched with the threaded sleeve 323 will move in the threaded sleeve 323 (when the driving device 321 rotates forward, the telescopic slider 324 is driven to move in the threaded sleeve 323 in the direction close to the roller brush bracket 1; when the driving device 321 is reversed, the telescopic slider 324 is driven to move in the threaded sleeve 323 in the direction away from the roller brush bracket 1), thereby causing the rotating component 33 to extend into the roller brush bracket 1 and connect with the roller brush 2.

[0045] In one embodiment, a third holding structure 34 is provided in the component bracket 31 , and the third holding structure 34 is used to limit the threaded sleeve 323 or the telescopic slider 324 .

[0046] As described above, a third holding structure 34 is provided at the connection between the threaded sleeve 323 and the movable groove 311 . The third holding structure 34 is used to hold the threaded sleeve 323 or the telescopic slider 324 so that the threaded sleeve 323 or the telescopic slider 324 does not slide into the movable groove 311 .

[0047] In one embodiment, fourth clamping structures are provided at both ends of the threaded sleeve 323 , and the fourth clamping structures are used to limit the moving stroke of the telescopic slider 324 within the threaded sleeve 323 .

[0048] As described above, a fourth clamping structure is provided at both ends of the threaded sleeve 323, and the fourth clamping structure is used to limit the moving stroke of the telescopic slider 324 within the threaded sleeve 323 to prevent the telescopic slider 324 from being completely separated from the threaded sleeve 323 when the threaded sleeve 323 moves.

[0049] In one embodiment, the connecting member 325 is a spring.

[0050] As mentioned above, the connecting member 325 can be a rigid connecting rod or a spring, preferably a spring. When the telescopic shaft 3332 has been completely connected with the roller brush 2, the spring can reserve sufficient elastic space between the rotating bracket 331 and the telescopic slider 324 to avoid the situation where the telescopic shaft 3332 continues to squeeze the roller brush 2 under the action of the drive motor (when the control drive motor is not aware or the feedback signal is delayed, etc.), thereby damaging the roller brush 2 or the drive motor.

[0051] In one embodiment, the transmission device 32 further includes a reduction gear 326 . The reduction gear 326 is disposed on the transmission shaft 322 , and the output shaft of the driving device 321 is in transmission connection with the reduction gear 326 .

[0052] As mentioned above, the transmission device 32 also includes a reduction gear 326, that is, the output shaft of the driving device 321 can be directly connected to the transmission shaft 322, or it can be connected to the transmission shaft 322 through the reduction gear 326, thereby controlling the speed at which the telescopic shaft 3332 approaches the roller brush 2, while reserving sufficient feedback response time for the controller, and avoiding the speed at which the telescopic shaft 3332 approaches the roller brush 2 so that the impact force when it docks with the roller brush 2 is too large.

[0053] In one embodiment, an isolation plate 11 is provided on the side of the second end of the roller brush holder 1 close to the roller brush 2. When the abutment component 3 extends into the roller brush holder 1, the isolation plate 11 is propped open by the abutment component 3. When the abutment component 3 withdraws from the roller brush holder 1, the isolation plate 11 is restored to prevent garbage from being brought out of the roller brush holder 1.

[0054] As described above, an isolation sheet 11 is provided on the side of the second end of the roller brush holder 1 close to the roller brush 2, wherein the isolation sheet 11 is arranged around the entrance of the abutment component 3 extending into the roller brush holder 1. When the abutment component 3 extends into the roller brush holder 1, the isolation sheet 11 is supported by the abutment component 3 and flipped into the roller brush holder 1. When the abutment component 3 withdraws from the roller brush holder 1, the isolation sheet 11 is restored to prevent garbage from being brought out of the roller brush holder 1.

[0055] In a second aspect, the present application also provides a sweeping machine, which is provided with a spiral roller brush assembly as described in any one of the above items.

[0056] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, and back) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0057] In addition, in the present invention, descriptions such as "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A spiral roller brush assembly, characterized in that: include: A roller brush bracket, a roller brush, and a resisting assembly, wherein the roller brush is mounted in the roller brush bracket and can rotate relative to the roller brush bracket, the first end of the roller brush is larger than the second end of the roller brush, the first end of the roller brush is connected to the first end of the roller brush bracket, and the resisting assembly is mounted on the second end of the roller brush bracket, the resisting assembly can extend into the roller brush bracket and be connected to the second end of the roller brush and can rotate with the roller brush; The supporting assembly includes: an assembly bracket, a transmission device and a rotating assembly. The assembly bracket is connected to the roller brush bracket. The transmission device extends from the end of the assembly bracket away from the roller brush bracket to the end close to the roller brush bracket. The rotating assembly is arranged at the end of the assembly bracket close to the roller brush bracket. Under the driving action of the transmission device, the rotating assembly extends into the roller brush bracket and is connected to the roller brush and can rotate with the roller brush.

2. The spiral roller brush assembly according to claim 1, characterized in that: The component bracket is provided with a movable groove at one end close to the roller brush bracket, the rotating component is arranged in the movable groove and can move in the movable groove, the first end of the rotating component is connected to the transmission device, and under the driving action of the transmission device, the second end of the rotating component extends into the roller brush bracket and is connected to the roller brush, and the movable groove is provided with a first clamping structure at one end close to the roller brush bracket, and the first clamping structure is used to limit the moving stroke of the rotating component within the movable groove.

3. The spiral roller brush assembly according to claim 2, characterized in that: The rotating component includes a rotating bracket, an axial rod and an axial rod sleeve. The rotating bracket is connected to the transmission device. A cavity for accommodating the axial rod sleeve is provided in the rotating bracket. The first end of the axial rod is connected to the rotating bracket. The second end of the axial rod extends toward the direction close to the component bracket. The axial rod sleeve is sleeved on the axial rod from the second end of the axial rod. Under the driving action of the transmission device, the second end of the axial rod sleeve extends into the roller brush bracket and is connected to the roller brush.

4. The spiral roller brush assembly according to claim 3, characterized in that: The shaft rod sleeve includes a clamping portion and a telescopic shaft rod, the clamping portion is arranged in the cavity, the telescopic shaft rod extends from the cavity toward the direction close to the component bracket, and the extended end of the telescopic shaft rod has a clamping portion for connecting with the roller brush.

5. The spiral roller brush assembly according to claim 4, characterized in that: The diameter of the telescopic shaft gradually decreases toward the direction approaching the roller brush bracket.

6. The spiral roller brush assembly according to claim 4, characterized in that: A second holding structure is provided at one end of the cavity close to the roller brush bracket, and the second holding structure is used to hold the holding portion in the cavity.

7. The spiral roller brush assembly according to claim 1, wherein: The transmission device includes a driving device, a transmission shaft, a threaded sleeve, a telescopic slider and a connecting member; the first end of the transmission shaft is arranged at an end of the component bracket away from the roller brush bracket, the second end of the transmission shaft extends into the threaded sleeve, the telescopic slider is arranged on the transmission shaft, and a thread is provided in the circumferential direction of the telescopic slider, the telescopic slider cooperates with the threaded sleeve through the thread, the first end of the connecting member is connected to the telescopic slider, and the second end of the connecting member is connected to the rotating component, the output shaft of the driving device is connected to the transmission shaft, and the driving device can drive the transmission shaft to rotate relative to the component bracket, drive the telescopic slider to move in the threaded sleeve, and then make the rotating component extend into the roller brush bracket and connect with the roller brush.

8. The spiral roller brush assembly according to claim 1, wherein: An isolation sheet is provided on one side of the second end of the roller brush holder close to the roller brush. When the abutment assembly extends into the roller brush holder, the isolation sheet is propped open by the abutment assembly. When the abutment assembly withdraws from the roller brush holder, the isolation sheet is restored to prevent garbage from being brought out of the roller brush holder.

9. A sweeping machine, characterized in that: The sweeping machine is provided with a spiral roller brush assembly as described in any one of claims 1 to 8.

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