Sweeping robot with cleaning device

Abstract

The utility model discloses a sweeping robot with a cleaning device, and relates to the technical field of sweeping robots. The device comprises a shell, a rolling brush and a driving device are assembled on the shell, and the rolling brush is used for cleaning foreign matters on the ground; one end of the transmission assembly is fixedly assembled on an output shaft of the driving device, and the other end is rotationally assembled on the shell and is far away from one end of the driving device; the first shearing assembly is assembled on the shell and is close to one side of the driving device and the transmission assembly; the second shearing assembly is assembled on the transmission assembly in a sliding manner; when the driving device drives the transmission assembly to rotate, the second shearing assembly is driven to pull the foreign matter on the rolling brush from the end away from the driving device to the end close to the first shearing assembly, at the moment, the transmission assembly rotates to make contact with the first shearing assembly, and the first shearing assembly axially reciprocates to cut the foreign matter. By the adoption of the technical scheme, foreign matter can be thoroughly cut, the cutting efficiency is high, the later cleaning efficiency is not affected, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sweeping robots, in particular to a sweeping robot with a cleaning device. Background Art

[0002] With the development of smart homes, sweeping robots have gradually become a common device for household cleaning. The main function of a sweeping robot is to automatically clean dust, hair, and other small debris from the ground. However, when existing sweeping robots clean the ground, human hair, cat and dog hair, and other foreign objects left on the ground can become entangled in the middle sweeping roller brush. After long-term use, a large amount of hair will be entangled in the roller brush, affecting the sweeping robot's cleaning efficiency in the later stages. Due to the entanglement of hair, the sweeping robot's cleaning ability will gradually decline, and the expected cleaning effect cannot be achieved. Users need to manually clean the hair entangled in the roller brush regularly, which is not only time-consuming but also troublesome. Therefore, improvement is urgently needed. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology and provide a sweeping robot with a cleaning device, which can completely cut foreign objects and has high cutting efficiency without affecting the subsequent cleaning efficiency, thereby improving the cleaning effect.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a sweeping robot with a cleaning device, comprising:

[0005] case;

[0006] A roller brush is mounted on the housing and is used to clean foreign matter on the ground;

[0007] A driving device is assembled on the housing and close to a side of the roller brush;

[0008] A transmission assembly, one end of which is fixedly mounted on the output shaft of the driving device, and the other end of which is rotatably mounted on the housing and away from the driving device;

[0009] a first shearing assembly, mounted on the housing and close to a side of the driving device and the transmission assembly; and

[0010] A second shearing assembly is slidably mounted on the transmission assembly and is used to pull the foreign matter on the roller brush to move;

[0011] When the driving device drives the transmission assembly to rotate, it drives the second shearing assembly to pull the foreign matter on the roller brush from the end away from the driving device to the end close to the first shearing assembly. At this time, the transmission assembly rotates to contact the first shearing assembly, and the first shearing assembly moves axially back and forth to cut the foreign matter.

[0012] The utility model is further provided that the transmission assembly includes: a cam fixedly assembled on the output shaft of the driving device, and a screw rod with one end fixedly assembled on the cam and the other end rotatably assembled on the housing; a fixed block for rotatably assembling the screw rod is provided on the housing, and the sliding device of the second shearing assembly is on the screw rod.

[0013] The utility model is further provided with a first protrusion and a second protrusion spaced apart from the first protrusion on the cam. When the driving device drives the cam to rotate, the first protrusion and the second protrusion alternately contact the first shearing component, causing the first shearing component to move axially back and forth.

[0014] The present invention is further provided with the following configuration: the first shearing assembly includes: a blade holder fixed on the shell and provided with a cavity therein; a first shearing knife fixedly assembled in the cavity; a second shearing knife movably assembled in the cavity and reciprocating relative to the first shearing knife; and a fixed column fixedly assembled on the second shearing knife and used to contact the cam; an elastic member is provided on the side of the fixed column facing away from the second shearing knife, and a blocking plate for blocking the elastic member is also provided on the shell.

[0015] The utility model further arranges that a first mounting portion for sleeve mounting of one end of the elastic member is provided on the side of the fixing column facing away from the second shearing knife; and a second mounting portion for sleeve mounting of the other end of the elastic member is provided on the blocking plate.

[0016] The present invention is further provided with the following configuration: the first shearing assembly also includes: a pressure piece slidably assembled on the first shearing knife and facing away from the second shearing knife, a sliding piece assembled on the second shearing knife and facing away from the first shearing knife, and a movable column fixedly assembled on the sliding piece, passing through the first shearing knife and the second shearing knife, and fixedly connected to the pressure piece; when the second shearing knife makes axial reciprocating movement relative to the first shearing knife, it drives the sliding piece and the movable column to move, and the movable column drives the pressure piece to move on the first shearing knife.

[0017] The present invention is further provided with a first through hole for preventing the movable column from moving, and a second through hole for the movable column to pass through is provided on the second shearing knife.

[0018] The present invention further provides that the blade support is provided with a first limiting groove for the movement of the blade pressing member on a side facing the blade pressing member, and a second limiting groove for the movement of the sliding member on a side facing the sliding member.

[0019] The utility model is further provided that the second shearing assembly includes: a transmission block assembled on the screw rod, a nut block assembled in the transmission block and slidably assembled on the screw rod, and a lateral blade fixedly transferred to the transmission block; the driving device drives the screw rod to drive, drives the nut block in the transmission block to move linearly, drives the lateral blade to pull the foreign matter on the roller brush to move closer to the side of the first shearing assembly.

[0020] The utility model is further provided that the side blades are V-shaped.

[0021] After adopting the above technical solution, the beneficial effects of the utility model are as follows: in the utility model, a transmission assembly and first and second shearing assemblies are provided, wherein a roller brush for cleaning foreign objects on the ground and a driving device close to one side of the roller brush are assembled on the shell, the driving device is used to drive the transmission assembly, one end of the transmission assembly is fixedly assembled on the output shaft of the driving device, and the other end is rotatably assembled on the shell, and its other end is away from one side of the driving device, the first shearing assembly is transferred to the shell and close to the side of the driving device and the transmission assembly, the first shearing assembly is used to shear and cut off foreign objects, the second shearing assembly is slidably assembled on the transmission assembly, and the second shearing assembly is used to pull the foreign objects on the roller brush to move, so that when the driving device drives the transmission assembly to rotate, the transmission assembly drives the second shearing assembly to pull the foreign objects on the roller brush from the end away from the driving device to the end close to the first shearing assembly, at this time, the transmission assembly rotates to contact the first shearing assembly, and the first shearing assembly axially reciprocates to cut the foreign objects, thereby achieving the ability to shear and cut off foreign objects, avoiding foreign objects from being entangled on the roller brush and affecting the cleaning efficiency of the sweeping robot in the later stage. Therefore, it can completely cut off foreign matter and has high cutting efficiency without affecting the subsequent cleaning efficiency, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a schematic diagram of the structure of the sweeping robot with a cleaning device and part A;

[0024] Figure 2 This is an exploded diagram of the structure of a sweeping robot with a cleaning device from one perspective;

[0025] Figure 3 This is an exploded diagram of the structure of the sweeping robot with a cleaning device from another perspective;

[0026] Figure 4 It is a schematic diagram of the exploded structure of the cam in the transmission assembly;

[0027] Figure 5 This is a schematic diagram of the exploded structure from the perspective of the first shear component;

[0028] Figure 6 This is a structural explosion diagram of the first shear component from another perspective;

[0029] Figure 7 It corresponds to Figure 1 A partial enlarged schematic diagram of part A;

[0030] Figure 8 It is a schematic diagram of the structural explosion of the first and second shear components.

[0031] Explanation of the accompanying drawings: 100, shell; 110, fixed block; 120, blocking plate; 121, second mounting portion; 200, roller brush; 300, driving device; 400, transmission assembly; 410, cam; 411, first protrusion; 412, second protrusion; 420, screw rod; 500, first shearing assembly; 510, blade bracket; 520, first shearing knife; 521, first through hole; 530, second shearing knife; 531, second through hole; 540, fixed column; 541, elastic member; 542, first mounting portion; 550, knife pressing member; 560, sliding member; 570, movable column; 580, first limiting groove; 590, second limiting groove; 600, second shearing assembly; 610, transmission block; 620, nut block; 630, lateral blade. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings.

[0033] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0034] This embodiment relates to a sweeping robot with a cleaning device. Figure 1-Figure 3, including: a housing 100, a roller brush 200, a driving device 300, a transmission assembly 400, a first shearing assembly 500, and a second shearing assembly 600. Among them, the roller brush 200 is assembled on the housing 100 and is used to clean foreign matter (such as hair, thread ends, etc.) on the ground, and the foreign matter is entangled on the roller brush 200. The driving device 300 is assembled on the housing 100 and is close to one side of the roller brush 200. The driving device 300 is used to drive the transmission assembly 400, providing a power source for cutting foreign matter. Specifically, the driving device 300 is fixed to the housing 100 by a fixing member. One end of the transmission assembly 400 is fixedly mounted on the output shaft of the drive device 300, and the other end is rotatably mounted on the housing 100. The other end is mounted away from the drive device 300. Under the action of the drive device 300, the transmission assembly 400 is driven to rotate and contact the first shearing assembly 500, causing the first shearing assembly 500 to perform axial reciprocating motion, thereby enabling the second shearing assembly 600 to perform linear movement on the transmission assembly 400. The first shearing assembly 500 is mounted on the housing 100, close to the drive device 300 and the transmission assembly 400. Under the action of the transmission assembly 400, the first shearing assembly 500 can perform axial reciprocating motion to cut and sever foreign matter. The second shearing assembly 600 is slidably mounted on the transmission assembly 400 and is used to pull foreign matter on the roller brush 200 to move to the first shearing assembly 500, at which point the foreign matter on the roller brush 200 can be sheared and completely cut. The cooperation between the first shearing assembly 500 and the second shearing assembly 600 allows for timely removal of foreign matter from the roller brush 200, preventing it from becoming entangled in the roller brush 200. This ensures the continued efficient operation of the roller brush 200 and reduces the burden on the roller brush 200 and the drive unit 300. Consequently, when the drive unit 300 drives the transmission assembly 400 to rotate, the transmission assembly 400 drives the second shearing assembly 600 to pull foreign matter from the end of the roller brush 200 away from the drive unit 300 to the end closer to the first shearing assembly 500. At this point, the transmission assembly 400 rotates to contact the first shearing assembly 500, which then reciprocates axially to cut the foreign matter, effectively shearing it off and preventing it from becoming entangled in the roller brush 200 and affecting the subsequent cleaning efficiency of the sweeping robot. Consequently, the sweeping robot can thoroughly and efficiently cut foreign matter without compromising subsequent cleaning efficiency, improving cleaning effectiveness and effectively resolving the foreign matter entanglement problem encountered by conventional sweeping robots during the cleaning process.

[0035] In this embodiment, referring to Figure 2-Figure 3The transmission assembly 400 includes: a cam 410 and a screw rod 420. The cam 410 is fixedly assembled on the output shaft of the driving device 300. When the driving device 300 rotates, the cam 410 also rotates, and then the cam 410 rotates to contact the first shearing assembly 500 to perform axial reciprocating motion. One end of the screw rod 420 is fixedly assembled on the cam 410, and the other end is rotatably assembled through the fixed block 110 on the housing 100. The screw rod 420 can rotate with the rotation of the cam 410. Furthermore, a fixed block 110 for rotatably assembling the screw rod 420 is provided on the housing 100, and the second shearing assembly 600 is slidably mounted on the screw rod 420. The screw rod 420 is rotatably assembled on the fixing hole and its rotational assembly method provides a stable motion trajectory, ensuring the smooth movement of the second shearing assembly 600 and avoiding jitter or jamming during movement.

[0036] In this embodiment, the cam 410 is provided with a first protrusion 411 and a second protrusion 412 spaced apart from the first protrusion 411. When the drive device 300 drives the cam 410 to rotate, the first protrusion 411 and the second protrusion 412 alternately contact the first shearing assembly 500, causing the first shearing assembly 500 to reciprocate axially. The alternating contact of the protrusions on the cam 410 allows the first shearing assembly 500 to achieve axial reciprocation, thereby more effectively cutting foreign matter from the roller brush 200. Furthermore, the spacing of the protrusions allows for smoother reciprocation of the first shearing assembly 500. In other embodiments, to increase the reciprocating speed and shearing rate, multiple protrusions may be provided on the cam 410 at intervals.

[0037] In this embodiment, referring to Figure 4-Figure 5The first shearing assembly 500 includes: a blade holder 510, a first shearing knife 520, a second shearing knife 530 and a fixed column 540. The blade holder 510 is fixed to the housing 100 and is provided with a cavity therein for accommodating the shearing knife assembly. The first shearing knife 520 is fixedly assembled in the cavity and serves as a fixed part during the shearing process. The second shearing knife 530 is movably assembled in the cavity and reciprocates relative to the first shearing knife 520 to cooperate with the first shearing knife 520 to perform shearing. The fixed column 540 is fixedly assembled on the second shearing knife 530 and is used to contact the cam 410 to convert the rotation of the cam 410 into the reciprocating motion of the shearing knife. An elastic member 541 is provided on the side of the fixed column 540 facing away from the second shearing knife 530. The elastic member 541 provides a rebound force, so that the second shearing knife 530 can quickly reset after each shearing, ensuring the continuity and efficiency of the shearing action. The housing 100 is further provided with a blocking plate 120 for blocking the elastic member 541 . The elastic member 541 abuts against the blocking plate 120 , providing sufficient resilience and limiting the moving range of the second shearing knife 530 , ensuring that it moves back and forth within a certain range. Specifically, when the first protrusion 411 of the cam 410 contacts the fixed post 540, the second shearing knife 530 is pushed to move in the direction away from the first shearing knife 520, performing the first shearing action, and the second shearing knife 530 is reset under the action of the elastic member 541, and the second shearing action is performed; when the second protrusion 412 of the cam 410 contacts the fixed post 540, the second shearing knife 530 is pushed to move again in the direction away from the first shearing knife 520, performing the third shearing action, and the second shearing knife 530 is reset again under the action of the elastic member 541, performing the fourth shearing action, at this time the shearing action after the cam 410 rotates one circle is completed, therefore, the cam 410 continues to rotate, the protrusions continue to contact the fixed post 540 alternately, and the second shearing knife 530 continues to reciprocate to cut the foreign matter, and can also perform a thorough cutting. Through the cooperation of the cam 410 and the fixed column 540, and the help of the elastic member 541, the reciprocating movement of the first shearing assembly 500 is smoother, ensuring the reliability of the shearing process, removing foreign matter in time, avoiding equipment failure caused by foreign matter entanglement, and extending the service life of the equipment.

[0038] In this embodiment, referring to Figure 7 The side of the fixing post 540 facing away from the second shear blade 530 is provided with a first mounting portion 542 for receiving one end of the elastic member 541. The blocking plate 120 is provided with a second mounting portion 121 for receiving the other end of the elastic member 541. The arrangement of the first mounting portion 542 and the second mounting portion 121 provides mounting conditions for the elastic member 541 and also acts as a limiter, preventing the elastic member 541 from shifting when a rebound force is generated, providing sufficient rebound force to further assist in resetting the second shear blade 530.

[0039] In this embodiment, referring to Figure 4-Figure 5 The first shearing assembly 500 further includes a pressure member 550, a sliding member 560, and a movable post 570. The pressure member 550 is slidably mounted on the first shearing blade 520, facing away from the second shearing blade 530. The pressure member 550 is fixedly connected to the movable post 570 and can slide on the first shearing blade 520 as the movable post 570 moves. The sliding member 560 is mounted on the second shearing blade 530, facing away from the first shearing blade 520. The sliding member 560 is fixedly connected to the movable post 570 and can move as the second shearing blade 530 reciprocates. The movable post 570 is fixedly mounted on the sliding member 560, penetrates the first shearing blade 520 and the second shearing blade 530, and is fixedly connected to the pressure member 550. When the second shearing blade 530 moves, the movable post 570 drives the pressure member 550 to move on the first shearing blade 520. Furthermore, when the second shearing blade 530 reciprocates axially relative to the first shearing blade 520, it drives the sliding member 560 and the movable post 570 to move, and the movable post 570 drives the pressure member 550 to move on the first shearing blade 520. As the second shearing blade 530 reciprocates, it drives the sliding member 560 to move, and the sliding member 560 drives the pressure member 550 to slide on the first shearing blade 520 via the movable post 570, thereby achieving a shearing action, effectively shearing foreign matter into smaller pieces and preventing it from becoming entangled in the roller brush 200. At the same time, the pressure member, sliding member 560, and movable post 570 cooperate to bring the first shearing blade 520 into close proximity with the first shearing blade 520, thereby better achieving the shearing action and preventing the inability to shear foreign matter due to gaps.

[0040] In this embodiment, the first shearing blade 520 is provided with a first through-hole 521 for circumventing the movement of the movable post 570, and the second shearing blade 530 is provided with a second through-hole 531 for the movable post 570 to pass through. The arrangement of the first through-hole 521 and the second through-hole 531 allows the movable post 570 to move smoothly within the range of the first through-hole 521, ensuring that the second shearing blade 530 can drive the pressure member 550 to perform the shearing action during its reciprocating movement, thereby improving shearing efficiency.

[0041] In this embodiment, referring to Figure 4The blade holder 510 is provided with a first limiting groove 580 for the movement of the blade pressing member 550 on the side facing the blade pressing member 550, and a second limiting groove 590 for the movement of the sliding member 560 on the side facing the sliding member 560. The blade pressing member 550 and the sliding member 560 are placed in the first limiting groove 580 and the second limiting groove 590, respectively. The first limiting groove 580 is used to limit the movement range of the blade pressing member 550, ensuring that the blade pressing member 550 can move smoothly on the first shearing blade 520 to perform the shearing action. The second limiting groove 590 is used to limit the movement range of the sliding member 560, ensuring that the sliding member 560 can move smoothly with the movement of the second shearing blade 530. The limiting grooves not only provide a guiding function but also play a positioning role, ensuring that the blade pressing member 550 and the sliding member 560 do not deviate from the predetermined track during movement.

[0042] In this embodiment, referring to Figure 8The second shearing assembly 600 includes: a transmission block 610, a nut block 620 and a lateral blade 630. The transmission block 610 is assembled on the screw rod 420, the nut block 620 is assembled in the transmission block 610 and slidably assembled on the screw rod 420, and the nut block 620 in the transmission block 610 moves in the linear direction as the screw rod 420 rotates. The lateral blade 630 is fixedly mounted on the transmission block 610 and is used to pull foreign matter on the roller brush 200. Furthermore, when the driving device 300 drives the screw rod 420 to rotate, the rotational motion of the screw rod 420 is transmitted to the nut block 620 through the thread, the nut block 620 moves in the linear direction, and the transmission block 610 moves as the nut block 620 moves, driving the lateral blade 630 fixed thereon to move. The side blades 630 move in conjunction with the movement of the transmission block 610, pulling foreign matter on the roller brush 200 from the side away from the first shearing assembly 500 toward the side closer to the first shearing assembly 500. Once the foreign matter is pulled close to the first shearing assembly 500, it is sheared by the first shearing assembly 500. Through the coordinated design of the screw rod 420 and the nut block 620, the side blades 630 can smoothly pull foreign matter from the roller brush 200, ensuring that it is effectively moved to the shearing position. Simultaneously, the side blades 630 pull the foreign matter toward the first shearing assembly 500, effectively shearing it and cutting it, improving shearing efficiency and subsequent cleaning efficiency. Specifically, when the driving device 300 is driven in one direction, the second shearing knife 530 performs axial reciprocating motion relative to the first shearing knife 520. At the same time, the side blade 630 of the second shearing assembly 600 pulls the foreign matter on the roller brush 200 from the side away from the first shearing assembly 500 to the side close to the first shearing assembly 500, and the first shearing assembly 500 shears the foreign matter; when the driving device 300 is driven in the other direction, the second shearing knife 530 still performs axial reciprocating motion relative to the first shearing knife 520, but at this time, under the action of the rotation of the screw rod 420, the nut block 620 that cooperates with the screw rod 420 drives the second shearing assembly 600 to move linearly away from the first shearing assembly 500 to the initial position, preparing for the next round of shearing operation, and repeating this process, thereby achieving the goal of thoroughly shearing and cleaning the foreign matter on the roller brush 200 without affecting the later cleaning efficiency of the sweeping robot.

[0043] In this embodiment, the side blades 630 are V-shaped and are used to grab and guide foreign objects on the roller brush 200. The V-shaped side blades 630 can better grab foreign objects on the roller brush 200, especially slender foreign objects such as hair, and prevent foreign objects from falling off during movement. In other embodiments, the side blades 630 can also be U-shaped, C-shaped, hook-shaped, or sawtooth-shaped, or other blade shapes that are convenient for grabbing foreign objects on the roller brush 200.

[0044] The working principle of the present invention is roughly as follows: when the driving device 300 is transmitted in one direction, the driving cam 410 rotates, and the cam 410 drives the screw rod 420 to rotate, and the side blade 630 of the second shearing assembly 600 pulls the foreign matter on the roller brush 200 from the side away from the first shearing assembly 500 to the side close to the first shearing assembly 500. At the same time, the first protrusion 411 and the second protrusion 412 on the cam 410 alternately contact the fixed column 540, and the second shearing knife 530 performs axial reciprocating motion relative to the first shearing knife 520 to shear the foreign matter; when the driving device 300 is transmitted in the other direction, the driving cam 410 rotates, and the cam 410 drives the screw rod 420 to rotate, and the second shearing assembly 600 moves linearly away from the first shearing assembly 500 to the initial position to prepare for the next round of shearing operation. This is repeated to achieve the thorough shearing and cleaning of foreign matter on the roller brush 200 without affecting the later cleaning efficiency of the sweeping robot. Therefore, it can completely cut off foreign objects with high cutting efficiency without affecting the subsequent cleaning efficiency, thereby improving the cleaning effect and effectively solving the problem of foreign object entanglement encountered by traditional sweeping robots during the cleaning process.

[0045] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A sweeping robot with a cleaning device, characterized in that: include: Housing (100); A roller brush (200) is mounted on the housing (100), and the roller brush (200) is used to clean foreign matter on the ground; A driving device (300) is mounted on the housing (100) and is close to a side of the roller brush (200); a transmission assembly (400), one end of which is fixedly mounted on the output shaft of the driving device (300) and the other end of which is rotatably mounted on the housing (100) and away from the side of the driving device (300); A first shearing assembly (500) is mounted on the housing (100) and is close to a side of the driving device (300) and the transmission assembly (400); as well as A second shearing assembly (600) is slidably mounted on the transmission assembly (400) and is used to pull the foreign matter on the roller brush (200) to move; When the driving device (300) drives the transmission assembly (400) to rotate, it drives the second shearing assembly (600) to pull the foreign matter on the roller brush (200) from the end away from the driving device (300) to the end close to the first shearing assembly (500). At this time, the transmission assembly (400) rotates to contact the first shearing assembly (500), and the first shearing assembly (500) moves axially back and forth to cut the foreign matter.

2. The sweeping robot with a cleaning device according to claim 1, characterized in that: The transmission assembly (400) comprises: a cam (410) fixedly mounted on the output shaft of the driving device (300), and a screw rod (420) with one end fixedly mounted on the cam (410) and the other end rotatably mounted on the housing (100); a fixed block (110) for rotatably mounting the screw rod (420) is provided on the housing (100), and the second shearing assembly (600) slides on the screw rod (420).

3. The sweeping robot with a cleaning device according to claim 2, characterized in that: The cam (410) is provided with a first protrusion (411) and a second protrusion (412) spaced apart from the first protrusion (411). When the driving device (300) drives the cam (410) to rotate, the first protrusion (411) and the second protrusion (412) alternately contact the first shearing assembly (500), causing the first shearing assembly (500) to move axially back and forth.

4. The sweeping robot with a cleaning device according to claim 3, characterized in that: The first shearing assembly (500) comprises: a blade holder (510) fixed on the shell (100) and provided with a cavity therein, a first shearing knife (520) fixedly assembled in the cavity, a second shearing knife (530) movably assembled in the cavity and reciprocating relative to the first shearing knife (520), and a fixing post (540) fixedly assembled on the second shearing knife (530) and used to contact the cam (410); an elastic member (541) is provided on the side of the fixing post (540) facing away from the second shearing knife (530), and a blocking plate (120) is also provided on the shell (100) for blocking the elastic member (541).

5. The sweeping robot with a cleaning device according to claim 4, characterized in that: A first mounting portion (542) for sleeve-mounting one end of the elastic member (541) is provided on the side of the fixing column (540) facing away from the second shearing knife (530); and a second mounting portion (121) for sleeve-mounting the other end of the elastic member (541) is provided on the blocking plate (120).

6. The sweeping robot with a cleaning device according to claim 4, characterized in that: The first shearing assembly (500) further includes: a pressure piece (550) slidably mounted on the first shearing knife (520) and facing away from the second shearing knife (530), a sliding piece (560) mounted on the second shearing knife (530) and facing away from the first shearing knife (520), and a movable column (570) fixedly mounted on the sliding piece (560), passing through the first shearing knife (520) and the second shearing knife (530), and fixedly connected to the pressure piece (550); when the second shearing knife (530) makes axial reciprocating movement relative to the first shearing knife (520), it drives the sliding piece (560) and the movable column (570) to move, and the movable column (570) drives the pressure piece (550) to move on the first shearing knife (520).

7. The sweeping robot with a cleaning device according to claim 6, characterized in that: The first shearing knife (520) is provided with a first through hole (521) for preventing the movable column (570) from moving, and the second shearing knife (530) is provided with a second through hole (531) for the movable column (570) to pass through.

8. The sweeping robot with a cleaning device according to claim 6, characterized in that: The blade support (510) is provided with a first limiting groove (580) for the movement of the blade pressing member (550) on the side facing the blade pressing member (550), and a second limiting groove (590) for the movement of the sliding member (560) on the side facing the sliding member (560).

9. The sweeping robot with a cleaning device according to claim 2, characterized in that: The second shearing assembly (600) comprises: a transmission block (610) mounted on the screw rod (420), a nut block (620) mounted in the transmission block (610) and slidably mounted on the screw rod (420), and a lateral blade (630) fixedly mounted on the transmission block (610); the driving device (300) drives the screw rod (420) to transmit, thereby driving the nut block (620) in the transmission block (610) to move linearly, thereby driving the lateral blade (630) to pull the foreign matter on the roller brush (200) to move toward the side close to the first shearing assembly (500).

10. The sweeping robot with a cleaning device according to claim 9, characterized in that: The side blades (630) are V-shaped.

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