Rolling brush cleaning device of motor sweeper

Abstract

The invention relates to the technical field of sweeping devices, in particular to a rolling brush sweeping device of a sweeper, which comprises a support frame and two groups of sweeping assemblies mounted in the support frame, and two cleaning devices for cleaning entanglements on the sweeping assemblies are further arranged at the bottom of the support frame. Two first electric push rods are further arranged on the side, close to the two cleaning devices, of the supporting frame, and the output ends of the two first electric push rods are fixed to the two cleaning devices correspondingly. According to the device, through ingenious cooperation of the first synchronous rack and the first synchronous gear and the limiting effect of the one-way bearing, the state that the rolling brush is static and the cleaning mechanism moves in the cleaning process is achieved, the cleaning difficulty caused by rotation of the rolling brush is avoided, and through multi-structure linkage of the second synchronous rack, the second synchronous gear and the like, the cleaning efficiency is improved. The stability and the flexibility of the cleaning mechanism are further enhanced, so that the removing brush and the removing blade can be more accurately inserted into the rolling brush, and the foreign matters are quickly removed.

Description

Technical Field

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

[0002] A road sweeper is a piece of mechanical equipment specially used for road cleaning. It integrates road cleaning, garbage collection and transportation. It is a new type of efficient cleaning equipment. When the road sweeper moves forward, the roller brush will rotate at high speed driven by the drive motor, and the garbage, sand and other debris on the ground will be rolled into the waste collection box on the road sweeper through the force of rotation. In addition to ground cleaning and curb cleaning, the road sweeper can also perform tasks such as sprinkling water on the ground after cleaning. It has comprehensive functions and is widely used.

[0003] However, during the cleaning process, the roller brush will come into contact with various solid waste, fallen leaves, fruit peels, dust, etc., and may also encounter some entangled objects, such as wires, ropes, etc. Once these entangled objects are rolled into the roller brush, they can easily get entangled, increasing the burden on the sweeper motor. In severe cases, they may get entangled in the brush shaft motor and cause damage, or even cause the motor to burn out.

[0004] Or, as disclosed in the publication number "CN113718685B", a cleaning device for municipal road maintenance is provided. This patented technology, through the design of the cleaning brush and the cavity in the cleaning cylinder, when cleaning the municipal road, if there is a lot of dust attached to the cleaning brush, the fixed block can be driven into the cavity by the driving mechanism, so that the bristles on the cleaning brush contact the ball bearings, and then the cleaning brush is driven to rotate by the first servo motor, so that the bristles on the cleaning brush beat on the ball bearings, so that the dust and dirt on the bristles of the cleaning brush are separated. This structure is convenient for cleaning the dust and dirt on the cleaning brush, and is convenient for people to use; However, when the device is in use, although the dust on the bristles can be knocked off by making the bristles beat on the ball bearings, some ropes or plastic bags entangled in the bristles cannot be removed in this way and need to be removed manually, which is more troublesome.

[0005] Therefore, those skilled in the art provide a roller brush cleaning device for a sweeper to solve the problems raised in the above background technology. Summary of the invention

[0006] The object of the present invention is to provide a roller brush cleaning device for a sweeper to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A roller brush cleaning device for a sweeper comprises a support frame and two groups of cleaning components installed in the support frame. Two cleaning devices for cleaning entangled objects on the cleaning components are also arranged at the bottom of the support frame. Two first electric push rods are also arranged on one side of the support frame close to the two cleaning devices. The output ends of the two first electric push rods are respectively fixed to the two cleaning devices.

[0008] Preferably, the cleaning device comprises a driving assembly fixed to the output end of the first electric push rod, a telescopic assembly arranged in the driving assembly, and a rejecting assembly arranged on the telescopic assembly for cleaning the cleaning assembly.

[0009] Preferably: the cleaning assembly comprises a unidirectional drive motor, a connecting shaft, a cleaning roller brush and a first synchronous gear, the unidirectional drive motor is installed on the top of the support frame, the output end of the unidirectional drive motor is connected to the connecting shaft through a coupling, and the other end of the connecting shaft extends to the bottom of the support frame and is fixed to the cleaning roller brush; A one-way bearing is also arranged in the connecting shaft, the first synchronous gear is arranged on the connecting shaft, and the first synchronous gear is fixed to the one-way bearing.

[0010] Preferably: the driving assembly includes a driving frame, a side of the driving frame close to the first electric push rod is fixed to the output end of the first electric push rod, a second electric push rod is installed on the top of the driving frame, the output end of the second electric push rod passes through the top of the driving frame and extends into the driving frame, the output end of the second electric push rod is fixedly connected with a synchronization shaft, and a first synchronization rack is also installed on the side of the driving frame close to the cleaning assembly, and the first synchronization rack is adapted to the first synchronization gear on the connecting shaft.

[0011] Preferably: a first connecting rod is hinged on the synchronization shaft, a second connecting rod is hinged on the other end of the first connecting rod, and an end of the second connecting rod away from the first connecting rod is hinged on the telescopic assembly; A fixed shaft is also installed on one side of the bottom of the driving frame away from the driving frame, a third connecting rod is hinged on the fixed shaft, a fourth connecting rod is hinged on the other end of the third connecting rod, and the other end of the fourth connecting rod is hinged on the telescopic assembly.

[0012] Preferably: the telescopic assembly includes a telescopic plate, both sides of which are respectively connected to the second connecting rod and the fourth connecting rod, a second sliding groove is provided on one end of the telescopic plate close to the opening of the driving frame, the rejection assembly is slidably connected to the second sliding groove, and a synchronous adjustment assembly is also provided on the telescopic plate to enable the rejection assembly to swing slightly.

[0013] Preferably: the synchronous adjustment component includes a synchronous slide rod, and both sides of the telescopic plate are provided with first sliding grooves for the synchronous slide rod to slide, and the two ends of the synchronous slide rod respectively pass through the two first sliding grooves and are connected to one side of the adjacent first connecting rod and the third connecting rod, and the two ends of the synchronous slide rod are also provided with second synchronous racks, and the bottoms of the two second synchronous racks slide on the telescopic plate.

[0014] Preferably: the synchronous adjustment component also includes two second synchronous gears, a synchronous rod is arranged between the two second synchronous gears, and the two ends of the synchronous rod respectively pass through the two second synchronous gears and extend to the other side of the two second synchronous gears, the two ends of the synchronous rod are respectively rotatably connected to the inner walls on both sides of the telescopic plate, the two second synchronous gears are respectively meshed with the two second synchronous racks, and a rotating drum is also arranged between the two second synchronous gears, a limiting groove is opened on the rotating drum, and the rejection assembly is slidably connected to the limiting groove on the rotating drum.

[0015] Preferably: the rejecting assembly includes a rejecting rod, which slides on the second sliding groove, and one end of the rejecting rod close to the inside of the telescopic plate is slidably connected to the limiting groove, the other end of the rejecting rod passes through the second sliding groove and extends to the outside of the telescopic plate, the extended end of the rejecting rod is fixedly connected to a rejecting frame, and a plurality of evenly distributed rejecting brushes are installed on the side of the rejecting frame away from the rejecting rod, and a plurality of rejecting blades are interspersed among the plurality of rejecting brushes.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention ensures the accuracy and stability of the cleaning process through an intelligent synchronization mechanism. Through the ingenious cooperation of the first synchronization rack and the first synchronization gear, and the limiting effect of the one-way bearing, the state in which the roller brush is stationary and the cleaning mechanism is moving during the cleaning process is achieved, thereby avoiding the cleaning difficulties caused by the rotation of the roller brush.

[0017] The present invention further enhances the stability and flexibility of the cleaning mechanism through the linkage of the second synchronous rack and the second synchronous gear, and the left and right sliding of the rejection rod in the limiting groove, so that the rejection brush and the rejection blade can be more accurately inserted into the roller brush to achieve rapid removal of foreign matter.

[0018] 3. The present invention uses a combination of a removal brush and a removal blade, which can not only cut off foreign matter entangled on the roller brush, but also completely remove the foreign matter through the combing effect of the bristles. At the same time, the left and right moving removal method also helps to shake off dust and the like attached to the roller brush, making the cleaning process more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first viewing angle of the present invention; Figure 2It is a partial structural schematic diagram of the bottom of the support frame in the present invention; Figure 3 It is a partial structural schematic diagram of the cleaning component and the driving component in the present invention; Figure 4 It is a schematic diagram of the structure of the driving component in the present invention; Figure 5 It is a schematic diagram of the structure of the driving component in the present invention; Figure 6 It is a structural schematic diagram of the telescopic assembly in the present invention; Figure 7 It is a schematic diagram of the structure of the removal component in the present invention.

[0020] In the figure: 1. support frame; 2. cleaning component; 21. one-way drive motor; 22. connecting shaft; 23. cleaning roller brush; 24. first synchronous gear; 3. first electric push rod; 4. driving component; 41. driving frame; 42. second electric push rod; 43. synchronous shaft; 44. first connecting rod; 45. second connecting rod; 46. third connecting rod; 47. fourth connecting rod; 48. fixed shaft; 49. first synchronous rack; 5. telescopic component; 51. telescopic plate; 52. first sliding groove; 53. synchronous slide rod; 54. second sliding groove; 55. second synchronous rack; 56. second synchronous gear; 57. rotating drum; 58. limiting groove; 6. rejecting component; 61. rejecting rod; 62. rejecting frame; 63. rejecting brush; 64. rejecting blade. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] For example, see Figure 1-7A roller brush cleaning device for a cleaning vehicle comprises a support frame 1 and two groups of cleaning components 2 installed in the support frame 1. Two cleaning devices for cleaning windings on the cleaning components 2 are also arranged at the bottom of the support frame 1. Two first electric push rods 3 are also arranged on one side of the support frame 1 close to the two cleaning devices. The output ends of the two first electric push rods 3 are respectively fixed to the two cleaning devices. The cleaning device comprises a driving component 4 fixed to the output ends of the first electric push rods 3, a telescopic component 5 arranged in the driving component 4, and a rejecting component 6 arranged on the telescopic component 5 for cleaning the cleaning component 2. The cleaning component 2 comprises a unidirectional driving motor 21, a connecting shaft 22, a cleaning roller brush 23 and a first synchronous gear 24. The unidirectional driving motor 21 is installed at the top of the support frame 1. The output end of the unidirectional driving motor 21 is connected to the cleaning component 2 by a coupling. The device is connected to the connecting shaft 22, the other end of the connecting shaft 22 extends to the bottom of the support frame 1 and is fixed to the cleaning roller brush 23, a one-way bearing is also provided in the connecting shaft 22, a first synchronous gear 24 is provided on the connecting shaft 22, and the first synchronous gear 24 is fixed to the one-way bearing, the driving component 4 includes a driving frame 41, a side of the driving frame 41 close to the first electric push rod 3 is fixed to the output end of the first electric push rod 3, a second electric push rod 42 is installed on the top of the driving frame 41, the output end of the second electric push rod 42 passes through the top of the driving frame 41 and extends into the driving frame 41, the output end of the second electric push rod 42 is fixedly connected to the synchronous shaft 43, a first synchronous rack 49 is also installed on the side of the driving frame 41 close to the cleaning component 2, and the first synchronous rack 49 is adapted to the first synchronous gear 24 on the connecting shaft 22; When using the device, first connect the support frame 1 to the sweeper. When the sweeper moves, the support frame 1 and the cleaning assembly 2 are driven to move at the same time. The two unidirectional drive motors 21 on the top of the support frame 1 are started, so that the two unidirectional drive motors 21 drive the two cleaning roller brushes 23 to rotate through the two connecting shafts 22, and the garbage and dust on the road surface are cleaned by the cleaning roller brushes 23. When the cleaning roller brush 23 is performing cleaning work, the first synchronous rack 49 is not meshed with the first synchronous gear 24. When foreign matter is entangled on the cleaning roller brush 23 and needs to be cleaned, the one-way driving motor 21 is first turned off to stop the cleaning roller brush 23 from rotating, and then the corresponding first electric push rod 3 is started to make the first electric push rod 3 push the driving frame 41 to move in the direction of the cleaning roller brush 23. During the movement of the driving frame 41, the first synchronous rack 49 on the driving frame 41 gradually meshes with the first synchronous gear 24 and pushes the first synchronous gear 24 to rotate. At this time, under the action of the one-way bearing, the first synchronous rack 49 pushes the first synchronous gear 24 and the one-way bearing to rotate, but cannot drive the connecting shaft 22 and the cleaning roller brush 23 to rotate. During the continuous movement of the driving frame 41, the rejecting component 6 is gradually inserted into the cleaning roller brush 23, and the foreign matter entangled on the cleaning roller brush 23 is rejected by the rejecting component 6. After a rejection work is completed, the first electric push rod 3 is controlled to drive the driving frame 41 to move and reset, so that the rejection component 6 is moved out of the cleaning roller brush 23, and at the same time, the first synchronous rack 49 drives the first synchronous gear 24 to rotate in the opposite direction. Under the restriction of the one-way bearing, the first synchronous gear 24 drives the connecting shaft 22 and the cleaning roller brush 23 to rotate, so that the rejected area on the cleaning roller brush 23 is moved away, and the unremoved area is moved to the front of the driving frame 41, and the first electric push rod 3 is started again to repeat the above rejection work.

[0024] For example 2, please refer to Figure 4 and Figure 5 A first connecting rod 44 is hinged on the synchronization shaft 43, a second connecting rod 45 is hinged on the other end of the first connecting rod 44, an end of the second connecting rod 45 away from the first connecting rod 44 is hinged on the telescopic assembly 5, a fixed shaft 48 is also installed on the side of the bottom of the driving frame 41 away from the driving frame 41, a third connecting rod 46 is hinged on the fixed shaft 48, a fourth connecting rod 47 is hinged on the other end of the third connecting rod 46, and the other end of the fourth connecting rod 47 is hinged on the telescopic assembly 5, the telescopic assembly 5 includes a telescopic plate 51, both sides of the telescopic plate 51 are respectively connected to the second connecting rod 45 and the fourth connecting rod 47, a second sliding groove 54 is provided on the end of the telescopic plate 51 close to the opening of the driving frame 41, the rejection assembly 6 is slidably connected to the second sliding groove 54, and a synchronous adjustment assembly that can make the rejection assembly 6 swing slightly is also provided on the telescopic plate 51; After the first electric push rod 3 drives the driving frame 41 to move so that the rejecting assembly 6 is inserted into the cleaning roller brush 23, the second electric push rod 42 on the driving frame 41 is started, so that the output end of the second electric push rod 42 moves downward to drive the synchronous shaft 43 to move downward. When the synchronous shaft 43 moves downward, the first connecting rod 44 and the second connecting rod 45 are rotated under the push of the synchronous shaft 43 to make the telescopic plate 51 extend obliquely downward from the driving frame 41. At the same time, the third connecting rod 46 and the fourth connecting rod 47 on the other side of the telescopic plate 51 are synchronously extended under the drive of the telescopic plate 51, so that the movement of the telescopic plate 51 is more stable. When the telescopic plate 51 extends obliquely downward, it simultaneously drives the removing assembly 6 to move in an obliquely downward direction to remove the entangled objects on the cleaning roller brush 23 .

[0025] For example 3, please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7The synchronous adjustment component includes a synchronous slide bar 53. Both sides of the telescopic plate 51 are provided with first sliding grooves 52 for the synchronous slide bar 53 to slide. The two ends of the synchronous slide bar 53 respectively penetrate the two first sliding grooves 52 and are connected to one side of the adjacent first connecting rod 44 and the third connecting rod 46. Both ends of the synchronous slide bar 53 are also provided with second synchronous racks 55. The bottoms of the two second synchronous racks 55 slide on the telescopic plate 51. The synchronous adjustment component also includes two second synchronous gears 56. A synchronous rod is provided between the two second synchronous gears 56, and the two ends of the synchronous rod respectively penetrate the two second synchronous gears 56 and extend to the other side of the two second synchronous gears 56. The two ends of the synchronous rod are respectively rotatably connected to the inner walls on both sides of the telescopic plate 51. The two second The synchronous gear 56 is meshed with the two second synchronous racks 55 respectively, and a rotating drum 57 is also arranged between the two second synchronous gears 56. A limiting groove 58 is provided on the rotating drum 57. The rejecting assembly 6 is slidably connected to the limiting groove 58 on the rotating drum 57. The rejecting assembly 6 includes a rejecting rod 61, which slides on the second sliding groove 54, and one end of the rejecting rod 61 close to the inside of the telescopic plate 51 is slidably connected to the limiting groove 58, and the other end of the rejecting rod 61 passes through the second sliding groove 54 and extends to the outside of the telescopic plate 51. The extended end of the rejecting rod 61 is fixedly connected to a rejecting frame 62, and a plurality of evenly distributed rejecting brushes 63 are installed on the side of the rejecting frame 62 away from the rejecting rod 61, and a plurality of rejecting blades 64 are also interspersed in the plurality of rejecting brushes 63; When the telescopic plate 51 moves outward, the rejecting rod 61 drives the rejecting brush 63 and the rejecting blade 64 to be inserted into the cleaning roller brush 23. The rejecting blade 64 can cut off the foreign matter wrapped around the cleaning roller brush 23, and the rejecting brush 63 can remove the foreign matter, so that the foreign matter is peeled off from the cleaning roller brush 23. When the first connecting rod 44 and the third connecting rod 46 drive the telescopic plate 51 to move outward, the synchronous slide bar 53 on the telescopic plate 51 connected to the first connecting rod 44 and the third connecting rod 46 synchronously slides in the first sliding groove 52. When the synchronous slide bar 53 slides, the two second synchronous racks 55 are driven to slide simultaneously. The teeth on the second synchronous racks 55 are meshed with the two second synchronous gears 56. The two second synchronous gears 56 are rotated under the push of the second synchronous racks 55. The rotating drum 57 arranged between the two second synchronous gears 56 rotates at the same time. Under the limitation of the limiting groove 58, the rejection rod 61 slides left and right on the second sliding groove 54 along the trajectory of the limiting groove 58. When the rejection rod 61 slides left and right on the second sliding groove 54, the rejection brush 63 and the rejection blade 64 are driven to move slightly left and right through the rejection frame 62. When the rejection brush 63 and the rejection blade 64 are inserted into the cleaning roller brush 23, the rejection brush 63 and the rejection blade 64 move left and right, so that the rejection brush 63 and the rejection blade 64 can be inserted into the cleaning roller brush 23 more quickly. At the same time, in the process of moving left and right, the dust and the like attached to the cleaning roller brush 23 can also be shaken off, making the cleaning process more labor-saving and thorough.

[0026] The working principle of the present invention is as follows: when using the device, the support frame 1 is first connected to the cleaning vehicle. When the cleaning vehicle moves, the support frame 1 and the cleaning assembly 2 are driven to move at the same time. The two unidirectional drive motors 21 on the top of the support frame 1 are started, so that the two unidirectional drive motors 21 drive the two cleaning roller brushes 23 to rotate through the two connecting shafts 22, and the garbage and dust on the road surface are cleaned by the cleaning roller brushes 23; When the cleaning roller brush 23 is performing cleaning work, the first synchronous rack 49 is not meshed with the first synchronous gear 24. When foreign matter is entangled on the cleaning roller brush 23 and needs to be cleaned, the one-way drive motor 21 is first turned off to stop the cleaning roller brush 23 from rotating, and the first electric push rod 3 is started to push the driving frame 41 to move in the direction of the cleaning roller brush 23. During the movement of the driving frame 41, the first synchronous rack 49 on the driving frame 41 gradually meshes with the first synchronous gear 24 and pushes the first synchronous gear 24 to rotate. At this time, under the action of the one-way bearing, the first synchronous rack 49 pushes the first synchronous gear 24 and the one-way bearing to rotate, but cannot drive the connecting shaft 22 and the cleaning roller brush 23 to rotate. During the continuous movement of the driving frame 41, the rejection component 6 is gradually inserted into the cleaning roller brush 23. After the first electric push rod 3 drives the driving frame 41 to move so that the rejecting assembly 6 is inserted into the cleaning roller brush 23, the second electric push rod 42 on the driving frame 41 is started, and the synchronization shaft 43 is driven downward by the second electric push rod 42. The first connecting rod 44 and the second connecting rod 45 are rotated under the push of the synchronization shaft 43 so that the telescopic plate 51 extends obliquely downward from the driving frame 41, and the third connecting rod 46 and the fourth connecting rod 47 cooperate to rotate synchronously, so that the movement of the telescopic plate 51 is more stable; When the telescopic plate 51 moves outward, the rejecting rod 61 drives the rejecting brush 63 and the rejecting blade 64 to be inserted into the cleaning roller brush 23. The rejecting blade 64 can cut off the foreign matter wrapped around the cleaning roller brush 23, and the rejecting brush 63 can remove the foreign matter, so that the foreign matter is peeled off from the cleaning roller brush 23. When the first connecting rod 44 and the third connecting rod 46 drive the telescopic plate 51 to move outward, the synchronous sliding rod 53 on the telescopic plate 51 connected to the first connecting rod 44 and the third connecting rod 46 synchronously slides in the first sliding groove 52, driving the two second synchronous racks 55 to slide simultaneously so that the two second synchronous gears 56 rotate, and the rotating drum 57 arranged between the two second synchronous gears 56 rotates simultaneously, and under the limitation of the limiting groove 58, the rejecting rod 61 slides left and right on the second sliding groove 54 along the trajectory of the limiting groove 58; When the rejecting rod 61 slides left and right on the second sliding groove 54, the rejecting brush 63 and the rejecting blade 64 are driven to move slightly left and right through the rejecting frame 62, so that the rejecting brush 63 and the rejecting blade 64 are inserted into the cleaning roller brush 23 more quickly. At the same time, during the left and right movement, the dust and the like attached to the cleaning roller brush 23 can also be shaken off, making the cleaning process more labor-saving and thorough. After a removal work is completed, the first electric push rod 3 drives the driving frame 41 to move and reset, and the removal brush 63 and the removal blade 64 are moved out from the bottom of the cleaning roller brush 23. At the same time, the first synchronous rack 49 drives the first synchronous gear 24 to rotate in the opposite direction. Under the restriction of the one-way bearing, the first synchronous gear 24 drives the connecting shaft 22 and the cleaning roller brush 23 to rotate, so that the removed area on the cleaning roller brush 23 is moved away, and the unremoved area is moved to the front of the driving frame 41. The first electric push rod 3 is started again to repeat the above removal work.

[0027] It should be noted that the various devices in this application are common devices in the market, and can be selected according to specific needs during specific use. The circuit connection relationship of each device belongs to a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can implement it relatively easily. It belongs to the existing technology and will not be elaborated on.

[0028] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller brush cleaning device for a sweeper, comprising a support frame (1) and two sets of cleaning components (2) installed in the support frame (1), characterized in that: Two cleaning devices for cleaning entangled objects on the cleaning assembly (2) are also provided at the bottom of the support frame (1); two first electric push rods (3) are also provided on one side of the support frame (1) close to the two cleaning devices; the output ends of the two first electric push rods (3) are respectively fixed to the two cleaning devices; The cleaning device comprises a driving component (4) fixed to the output end of the first electric push rod (3), a telescopic component (5) arranged in the driving component (4), and a rejecting component (6) arranged on the telescopic component (5) for cleaning the cleaning component (2).

2. The roller brush cleaning device of a sweeper according to claim 1, characterized in that: The cleaning assembly (2) comprises a unidirectional drive motor (21), a connecting shaft (22), a cleaning roller brush (23) and a first synchronous gear (24); the unidirectional drive motor (21) is mounted on the top of the support frame (1); the output end of the unidirectional drive motor (21) is connected to the connecting shaft (22) via a coupling; the other end of the connecting shaft (22) extends to the bottom of the support frame (1) and is fixed to the cleaning roller brush (23); A one-way bearing is also provided in the connecting shaft (22); the first synchronous gear (24) is provided on the connecting shaft (22), and the first synchronous gear (24) is fixed to the one-way bearing.

3. The roller brush cleaning device of a sweeper according to claim 2, characterized in that: The driving assembly (4) comprises a driving frame (41), a side of the driving frame (41) close to the first electric push rod (3) is fixed to the output end of the first electric push rod (3), a second electric push rod (42) is installed on the top of the driving frame (41), the output end of the second electric push rod (42) passes through the top of the driving frame (41) and extends into the driving frame (41), the output end of the second electric push rod (42) is fixedly connected to a synchronization shaft (43), and a first synchronization rack (49) is also installed on the side of the driving frame (41) close to the cleaning assembly (2), and the first synchronization rack (49) is adapted to the first synchronization gear (24) on the connecting shaft (22).

4. The roller brush cleaning device of a sweeper according to claim 3, characterized in that: A first connecting rod (44) is hinged on the synchronization shaft (43); a second connecting rod (45) is hinged on the other end of the first connecting rod (44); and an end of the second connecting rod (45) away from the first connecting rod (44) is hinged on the telescopic assembly (5); A fixed shaft (48) is also installed on a side of the bottom of the driving frame (41) away from the driving frame (41); a third connecting rod (46) is hingedly connected to the fixed shaft (48); a fourth connecting rod (47) is hingedly connected to the other end of the third connecting rod (46); and the other end of the fourth connecting rod (47) is hingedly connected to the telescopic assembly (5).

5. The roller brush cleaning device of a sweeper according to claim 2, characterized in that: The telescopic assembly (5) comprises a telescopic plate (51), two sides of the telescopic plate (51) are respectively connected to the second connecting rod (45) and the fourth connecting rod (47), a second sliding groove (54) is provided on one end of the telescopic plate (51) close to the opening of the driving frame (41), the rejecting assembly (6) is slidably connected to the second sliding groove (54), and a synchronous adjustment assembly for causing the rejecting assembly (6) to swing slightly is also provided on the telescopic plate (51).

6. The roller brush cleaning device of a sweeper according to claim 5, characterized in that: The synchronous adjustment component comprises a synchronous slide bar (53), and first sliding grooves (52) for sliding the synchronous slide bar (53) are provided on both sides of the telescopic plate (51), and two ends of the synchronous slide bar (53) respectively penetrate the two first sliding grooves (52) and are connected to one side of the adjacent first connecting rod (44) and the third connecting rod (46), and second synchronous racks (55) are provided at both ends of the synchronous slide bar (53), and the bottoms of the two second synchronous racks (55) slide on the telescopic plate (51).

7. The roller brush cleaning device of a sweeper according to claim 6, characterized in that: The synchronous adjustment component also includes two second synchronous gears (56), a synchronous rod is arranged between the two second synchronous gears (56), and two ends of the synchronous rod respectively penetrate the two second synchronous gears (56) and extend to the other side of the two second synchronous gears (56), the two ends of the synchronous rod are respectively rotatably connected to the inner walls on both sides of the telescopic plate (51), the two second synchronous gears (56) are respectively meshed with two second synchronous racks (55), and a rotating drum (57) is also arranged between the two second synchronous gears (56), a limiting groove (58) is provided on the rotating drum (57), and the rejection component (6) is slidably connected to the limiting groove (58) on the rotating drum (57).

8. The roller brush cleaning device of a sweeper according to claim 2, characterized in that: The rejecting assembly (6) comprises a rejecting rod (61), the rejecting rod (61) slides on the second sliding groove (54), and one end of the rejecting rod (61) close to the inside of the telescopic plate (51) is slidably connected to the limiting groove (58), the other end of the rejecting rod (61) passes through the second sliding groove (54) and extends to the outside of the telescopic plate (51), the extended end of the rejecting rod (61) is fixedly connected to a rejecting frame (62), and a plurality of evenly distributed rejecting brushes (63) are installed on a side of the rejecting frame (62) away from the rejecting rod (61), and a plurality of rejecting blades (64) are also interspersed in the plurality of rejecting brushes (63).

Images