Cleaning device and base station type sweeping robot

Abstract

The utility model discloses a cleaning device and a base station type sweeping robot, and relates to the technical field of sweeping robots. The device comprises a shell, a bottom plate and a shearing device, an opening groove is formed in the shell, and the shearing device is used for cutting foreign matter on a rolling brush; the shearing device comprises a driving device, a shearing assembly fixedly assembled on an output shaft of the driving device, a first transmission part fixedly assembled between the output shaft of the driving device and the shearing assembly, and a second transmission part fixedly assembled on the bottom plate; when the driving device is driven to transmit in one direction, the first transmission part is driven to ascend along the second transmission part, the shearing device ascends to the opening groove, and the shearing assembly axially moves in a reciprocating mode to cut foreign matter. And when the driving device drives to transmit towards the other direction, the first transmission part is driven to descend along the second transmission part, so that the shearing device descends to the bottom plate. By the adoption of the technical scheme, the cleaning device has the advantages that the foreign matter cleaning function is achieved, cleaning efficiency is not affected, and the cleaning effect can be improved.

Description

Technical Field

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

[0002] With the development of smart home technology and the improvement of people's living standards, base station-type sweeping robots have gradually become one of the important tools for household cleaning. Traditional base station-type sweeping robots mainly clean the floor through vacuuming and sweeping, but in actual use, it is found that they have difficulty handling long foreign objects commonly found in the home (such as pet foreign objects or human hair). The base station of traditional base station-type sweeping robots can only charge the sweeping robot and does not have the function of cleaning foreign objects. Therefore, during the cleaning process, long foreign objects are easily drawn into the roller brush and entangled on the roller brush, affecting the cleaning efficiency and even causing the roller brush to jam. Due to the problems of foreign object entanglement and clogging, the cleaning efficiency and quality of base station-type sweeping robots are affected. Therefore, improvement is urgently needed. Utility Model Content

[0003] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a cleaning device and a base station type sweeping robot, which have the function of cleaning foreign objects without affecting the cleaning efficiency and can improve the cleaning effect.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a cleaning device, comprising: a main shell provided with an open groove, a bottom plate assembled on the bottom of the main shell, and a shearing device assembled on the bottom plate, the shearing device being used to cut foreign matter on the roller brush;

[0005] The shearing device comprises:

[0006] A driving device, mounted on the base plate;

[0007] A shearing assembly, fixedly mounted on the output shaft of the driving device, wherein the shearing assembly moves axially and reciprocatingly to cut foreign matter;

[0008] A first transmission member, fixedly assembled between the output shaft of the driving device and the shearing assembly; and

[0009] a second transmission member fixedly assembled on the bottom plate, wherein the first transmission member and the second transmission member cooperate with each other to drive the shearing device to move up and down in the open groove;

[0010] When the driving device drives in one direction, it drives the first transmission member to rise along the second transmission member, so that the shearing device rises to the open groove, and the shearing assembly moves axially back and forth to cut foreign matter; when the driving device drives in the other direction, it drives the first transmission member to descend along the second transmission member, so that the shearing device descends to the bottom plate.

[0011] The utility model is further provided that the shearing assembly includes: an eccentric cam fixedly assembled on the output shaft of the driving device, a transmission block inserted into the eccentric cam, a first shearing piece inserted into the transmission block, and a second shearing piece fixedly connected to the first shearing piece; when the driving device drives the eccentric cam to transmit, it drives the transmission block to move, and thereby drives the first shearing piece to move axially back and forth relative to the second shearing piece.

[0012] The utility model is further provided that the first shearing member comprises: a first shearing bracket, a fixing plate fixedly assembled in the first shearing bracket, a shearing knife pressing piece arranged on the fixing plate, and a first shearing knife for the shearing knife pressing piece to pass through, and a plug-in plate is provided at the bottom of the first shearing knife (360);

[0013] The second shearing member includes: a second shearing bracket, and a second shearing knife assembled on the second shearing bracket;

[0014] The eccentric cam includes: a convex strip arranged toward one side of the transmission block;

[0015] The transmission block includes: a groove facing one side of the eccentric cam and corresponding to the protruding strip, and a plug-in slot corresponding to the plug-in board;

[0016] The convex strip is inserted into the groove, the plug-in plate is inserted into the plug-in slot, and when the driving device drives the eccentric cam to transmit, the first shearing knife moves axially back and forth relative to the second shearing knife.

[0017] The utility model is further provided with a movable block penetrating the first shearing knife on the fixed plate, and a first avoidance hole for avoiding the movable block and a second avoidance hole for avoiding the transmission block are provided on the second shearing knife.

[0018] The utility model is further provided with a first through hole for the shearing knife pressing piece to pass through on the second shearing knife, and the shearing knife pressing piece passes through the first through hole so that the second shearing knife and the first shearing knife are pressed against each other.

[0019] The utility model is further provided with the shear blade pressing plate comprising: a first pressing plate extending toward one side of the first through hole, and a second pressing plate spaced apart from the first pressing plate; the first pressing plate extending upwardly to be provided with a first protrusion, and the second pressing plate extending downwardly to be provided with a second protrusion;

[0020] The second shearing knife is further provided with a first blocking groove located on the upper side of the first through hole and used for blocking the first protrusion, and a second blocking groove located on the lower side of the first through hole and used for blocking the second protrusion.

[0021] The utility model is further provided that the first shearing bracket and the second shearing bracket are fixedly connected by a fixing piece, and the first shearing knife is further provided with a third avoidance hole for avoiding the fixing piece;

[0022] An active cavity for accommodating the first shearing knife and the second shearing knife is provided between the first shearing bracket and the second shearing bracket. The length of the first shearing knife is shorter than that of the second shearing knife. The first shearing knife moves axially back and forth relative to the second shearing knife in the active cavity to cut foreign matter.

[0023] The utility model is further provided with a limiting column on the base plate, and a travel hole which is sleeved on the limiting column is provided on the first shearing piece. A guide rod which is a hollow structure, sleeved on the limiting column, and passed through the travel hole is provided on one side of the main shell body facing the bottom of the main shell body.

[0024] The utility model is further provided that the shearing device also includes: a protective shell; the driving device, the eccentric cam and the first transmission member are arranged in the protective shell, and the protective shell is also provided with an avoidance groove for avoiding the second transmission member.

[0025] To achieve the above-mentioned purpose, another technical solution adopted by the present invention is: a base station type sweeping robot, comprising: a sweeping robot, a roller brush arranged at the bottom of the sweeping robot, a base station, and a cleaning device as described above, which is arranged on the base station and used to cut foreign matter on the roller brush.

[0026] After adopting the above technical solution, the beneficial effects of the present invention are as follows: in the present invention, a main shell and a shearing device are provided, wherein a base plate is provided at the bottom of the main shell, the shearing device includes a driving device provided on the base plate, a second transmission member fixedly mounted on the base plate, and the shearing assembly and the first transmission member are both fixedly mounted on the output shaft of the driving device, specifically the first transmission member is fixedly mounted between the output shaft of the driving device and the shearing assembly, so that when the driving device drives in one direction, it drives the first transmission member to rise along the second transmission member, so that the shearing device rises to the open groove, and the shearing assembly moves axially back and forth to cut off foreign matter on the roller brush; and then when the driving device drives in the other direction, it drives the first transmission member to descend along the second transmission member, so that the shearing device descends to the base plate, so that the shearing device can rise from the open groove to cut foreign matter. Therefore, it has the function of cleaning foreign matter, does not affect the cleaning efficiency, and can also improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 It is a schematic diagram of the structure of the cleaning device;

[0029] Figure 2 It is a schematic diagram of the structure of the rising shearing device in the cleaning device;

[0030] Figure 3 It is a schematic diagram of the exploded structure of the shearing device;

[0031] Figure 4 It is a schematic diagram of the explosion of the structure of the shearing device rising;

[0032] Figure 5 This is a structural explosion diagram of the shearing device from another perspective;

[0033] Figure 6 It is a structural explosion diagram of the shear component;

[0034] Figure 7 It is an exploded diagram of the structure of the eccentric cam and the transmission block;

[0035] Figure 8 This is a structural explosion diagram of the shear component from another perspective;

[0036] Figure 9 It corresponds to Figure 8A magnified schematic diagram of part A in FIG.

[0037] Explanation of reference numerals: 100, main housing; 110, opening groove; 111, soft seal; 120, bottom plate; 121, limiting column; 200, driving device; 300, shearing assembly; 300a, fixing member; 310, eccentric cam; 311, ridge; 320, transmission block; 321, groove; 322, plug-in slot; 330, first shearing bracket; 331, travel hole; 340, fixing plate; 341, movable block; 350, shearing blade pressure plate; 351, first pressure plate; 351 1. First protrusion; 352. Second pressing plate; 3521. Second protrusion; 360. First shearing blade; 361. Plug-in plate; 362. Third avoidance hole; 370. Second shearing bracket; 380. Second shearing blade; 381. First avoidance hole; 382. Second avoidance hole; 383. First through hole; 3831. First blocking groove; 3832. Second blocking groove; 390. Protective shell; 391. Avoidance groove; 392. Spring member; 400. First transmission member; 500. Second transmission member. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below with reference to the accompanying drawings.

[0039] 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.

[0040] This embodiment relates to a cleaning device, referring to Figures 1-4, including: a main shell 100, a base plate 120 and a shearing device. Among them, an opening groove 110 is opened on the main shell 100, and soft sealing members 111 are provided on both sides of the opening groove 110. The base plate 120 is assembled on the bottom of the main shell 100. Specifically, it is fixed to the bottom of the main shell 100 by screws. When the shearing device fails, it is convenient to disassemble it for maintenance, which improves convenience. The shearing device is assembled on the base plate 120. The shearing device can be used to cut foreign matter (foreign matter or fibers, etc.), solves the existing entanglement problem, improves cleaning efficiency, and ensures that the sweeping robot can maintain the best state before each operation. The shearing device includes: a driving device 200, a shearing assembly 300, a first transmission member 400 and a second transmission member 500. Among them, the driving device 200 is assembled on the base plate 120, and the driving device 200 provides power for shearing foreign matter. The shearing assembly 300 is fixedly mounted on the output shaft of the drive device 200. Driven by the drive device 200, the shearing assembly 300 can reciprocate axially to cut foreign matter. A first transmission member 400 is fixedly mounted between the output shaft of the drive device 200 and the shearing assembly 300. The drive device 200 drives the first transmission member 400 to rotate, thereby driving the shearing assembly 300 to reciprocate. A second transmission member 500 is fixedly mounted on the base plate 120. When the drive device 200 drives the first transmission member 400, the first and second transmission members 400, 500 cooperate to drive the shearing assembly to rise and fall within the open slot 110, thereby causing the shearing assembly 300 to reciprocate axially to cut foreign matter. Thus, when the driving device 200 is driven in one direction, the first transmission member 400 is driven to rise along the second transmission member 500, driving the shearing device to rise, and then the shearing assembly 300 is raised to the opening groove 110 to make axial reciprocating movements to cut foreign matter, while the soft sealing member 111 is pushed open by the rising of the shearing assembly 300; and then when the driving device 200 is driven in the other direction, the first transmission member 400 is driven to descend along the second transmission member 500, causing the shearing device to descend to the bottom plate 120, while the soft sealing member 111 automatically recovers when the shearing assembly 300 descends, thus enabling the shearing device to rise and fall from the opening groove 110 to cut foreign matter, without affecting the cleaning efficiency of the sweeping robot and improving the cleaning effect. Therefore, the sweeping robot has the advantages of cleaning foreign matter without affecting the cleaning efficiency and improving the cleaning effect.

[0041] Specifically in this embodiment, refer to Figure 3 、 Figure 7The first transmission member 400 is a gear, and the second transmission member 500 is a rack meshed with the gear. When the driving device 200 drives the gear transmission, it drives the shearing device to rise and fall along the rack. The gear is used to transmit power, and the rack is used to guide the lifting and lowering of the shearing device. The setting of the gear and the rack realizes the telescopic lifting function. When the shearing assembly 300 is not working, it cannot be exposed to the external environment, otherwise it will block the robot from getting on the base station when the sweeping robot runs to the base station, and may even damage the bottom of the sweeping robot. At the same time, when the middle sweeping roller brush is entangled with foreign objects, the shearing assembly 300 can cut both deep and shallow foreign objects into place. In other embodiments, the first transmission member 400 and the second transmission member 500 can also use synchronous pulleys, pulleys or other components that can be lifted and lowered.

[0042] In this embodiment, referring to Figure 5 The shearing assembly 300 includes: an eccentric cam 310, a transmission block 320, a first shearing piece and a second shearing piece. The eccentric cam 310 is fixedly assembled on the output shaft of the driving device 200. The eccentric cam 310 uses the eccentric wheel principle to realize left and right swinging motion and rotates with the rotation of the driving device 200. The transmission block 320 is plugged into the eccentric cam 310 and performs reciprocating linear motion with the rotation of the eccentric cam 310. The first shearing piece is plugged into the transmission block 320, and the second shearing piece is fixedly connected to the first shearing piece. When the driving device 200 drives the eccentric cam 310 to rotate, the eccentric cam 310 drives the transmission block 320 to perform reciprocating linear motion along the axial direction, and then drives the first shearing piece to move back and forth axially relative to the second shearing piece, thereby realizing the shearing action. The shearing assembly 300 realizes the shearing action through the combination of the eccentric cam 310 and the transmission block 320, which can effectively cut foreign matter, avoid the problem of foreign matter entanglement, and improve the cleaning efficiency.

[0043] In this embodiment, referring to Figure 5-Figure 7The first shearing member includes: a first shearing bracket 330, a fixed plate 340, a shearing blade pressing plate 350 and a first shearing blade 360. Among them, the fixed plate 340 is fixedly assembled in the first shearing bracket 330, the shearing blade pressing plate 350 is arranged on the fixed plate 340, and the fixed plate 340 is used to support the shearing blade pressing plate 350. The first shearing blade 360 ​​is arranged on the first shearing bracket and is passed through by the shearing blade pressing plate 350. A plug-in plate 361 is provided at the bottom of the first shearing blade 360. The second shearing member includes: a second shearing bracket 370 and a second shearing blade 380 assembled on the second shearing bracket 370. The first shearing bracket 330 and the second shearing bracket 370 serve as support brackets, and then the first shearing blade 360 ​​is fixed together with the second shearing blade 380 through the shearing blade pressing plate 350, and cooperates with the second shearing blade 380 to perform shearing action. Furthermore, the eccentric cam 310 is provided with a protrusion 311 on the side facing the transmission block 320. The transmission block 320 is provided with a groove 321 corresponding to the protrusion 311 and a plug-in slot 322 corresponding to the plug-in plate 361. The protrusion 311 is inserted into the groove 321, and the plug-in plate 361 is inserted into the plug-in slot 322. When the drive device 200 drives the eccentric cam 310, the transmission block 320 drives the first shearing blade 360 ​​to reciprocate axially relative to the second shearing blade 380. The protrusion 311 cooperates with the groove 321 on the transmission block 320 to guide the reciprocating movement of the transmission block 320. The plug-in slot 322 cooperates with the plug-in plate 361 at the bottom of the first shearing blade 360, enabling the first shearing blade 360 ​​to move along with the transmission block 320. When the drive device 200 rotates the eccentric cam 310, the protrusion 311 on the eccentric cam 310 slides along the groove 321 on the transmission block 320, causing the transmission block 320 to reciprocate axially. This movement of the transmission block 320 drives the first shearing blade 360 ​​connected to it to reciprocate axially. The first shearing blade 360 ​​cooperates with the stationary second shearing blade 380 to shear foreign matter.

[0044] Specifically in this embodiment, the drive device 200 uses a motor. The motor has a fast response speed and can be started and stopped quickly, which is particularly important for reciprocating motions that require frequent changes in direction. Simultaneously, the use of a single drive device 200 not only enables the eccentric cam 310 mounted on the motor to drive the first shearing blade 360 ​​to swing left and right and move back and forth, but also drives the gear mounted on the motor to rotate, thereby meshing the rack with the gear, allowing the shearing device to move up and down when the motor is working. A single drive device 200 performs two action functions, which not only saves costs but also saves space. In other embodiments, the drive device 200 may also employ other drive components.

[0045] In this embodiment, referring to Figure 6The fixed plate 340 is provided with a movable block 341 that penetrates the first shearing knife 360 ​​and moves with the movement of the first shearing knife 360. The second shearing knife 380 is provided with a first avoidance hole 381 for avoiding the movable block 341 and a second avoidance hole 382 for avoiding the transmission block 320. Since the second shearing knife 380 is fixed and the first avoidance hole 381 and the second avoidance hole 382 are provided, when the shearing action is performed, the movable block 341 moves with the first shearing knife 360 ​​and passes through the first avoidance hole 381 on the second shearing knife 380, ensuring that the shearing process will not be obstructed. The second avoidance hole 382 allows the transmission block 320 to move without obstruction.

[0046] In this embodiment, referring to Figure 6 、 Figure 8-Figure 9 The second shearing blade 380 is provided with a first through-hole 383 for the shearing blade pressing piece 350 to pass through. The shearing blade pressing piece 350 passes through the first through-hole 383 to press the second shearing blade 380 against the first shearing blade 360. The provision of the shearing blade pressing piece 350 ensures that the first shearing blade 360 ​​and the second shearing blade 380 are tightly fitted together during the shearing process, ensuring the precision and stability of the shearing action, and preventing foreign objects from being cut off due to looseness.

[0047] In this embodiment, the shear blade pressure plate 350 includes a first pressure plate 351 extending toward one side of the first through hole 383 and a second pressure plate 352 spaced apart from the first pressure plate 351. The first pressure plate 351 is provided with a first protrusion 3511 extending upward, while the second pressure plate 352 is provided with a second protrusion 3521 extending downward. The second shear blade 380 is also provided with a first blocking groove 3831 located above the first through hole 383 for blocking the first protrusion 3511, and a second blocking groove 3832 located below the first through hole 383 for blocking the second protrusion 3521. The first protrusion 3511 snaps onto the first blocking groove 3831, while the second protrusion 3521 snaps onto the second blocking groove 3832. The first and second protrusions 3511 and 3521 are blocked by the first and second blocking grooves 3831 and 3832, limiting the range of movement of the shear blade pressure plate 350 and further ensuring the stability and cutting accuracy of the shear blade.

[0048] In this embodiment, referring to Figure 7-Figure 8The first shearing bracket 330 and the second shearing bracket 370 are fixedly connected via a fixing member 300a. The first shearing blade 360 ​​is also provided with a third clearance hole 362 for clearing the fixing member 300a. The third clearance hole 362 ensures that the first shearing blade 360 ​​does not interfere with the fixing member 300a during movement, further optimizing the structure of the shearing assembly 300. Furthermore, a movable cavity is provided between the first shearing bracket 330 and the second shearing bracket 370 to accommodate the first shearing blade 360 ​​and the second shearing blade 380. The first shearing blade 360 ​​is shorter than the second shearing blade 380. The first shearing blade 360 ​​reciprocates axially within the movable cavity relative to the second shearing blade 380 to cut foreign matter. The first shearing blade 360 ​​is shorter than the second shearing blade 380 and reciprocates axially within the movable cavity, ensuring the freedom of movement of the first shearing blade 360 ​​and improving shearing efficiency. Specifically, in this embodiment, the fixing member 300a is a screw. In other embodiments, the fixing member 300a may also be a different fixing member.

[0049] In this embodiment, referring to Figure 3 A limiting column 121 is also provided on the bottom plate 120, and a stroke hole 331 is also provided on the first shearing member, which is sleeved on the limiting column 121. The stroke hole 331 is provided on the first shearing member and is used to be sleeved on the limiting column 121 to limit the movement range of the first shearing member. A guide rod member (not shown) with a hollow structure, sleeved on the limiting column 121, and passed through the stroke hole 331 is provided on one side of the main shell 100 facing the bottom of the main shell 100, which is used to guide the movement of the first shearing member and limit the movement range of the stroke hole 331 along the guide rod member. The cooperation between the limiting column 121 and the guide rod member limits the movement range of the stroke hole 331 of the first shearing member, ensuring the stability of the shearing assembly 300 during the shearing process and the smooth lifting and lowering operation of the shearing device.

[0050] In this embodiment, referring to Figure 3 The shearing device also includes a protective shell 390, in which a driving device 200, an eccentric cam 310 and a first transmission member 400 are arranged. The protective shell 390 is also provided with an avoidance groove 391 for avoiding the second transmission member 500. The driving device 200, the eccentric cam 310 and the first transmission member 400 in the protective shell 390 are protected from interference from external factors, thereby improving reliability and durability. At the same time, under the action of the first transmission member 400 and the second transmission member 500, it is easy to drive the entire shearing device to rise and fall. In addition, the avoidance groove 391 on the protective shell 390 allows the second transmission member 500 to pass through without affecting the lifting and lowering of the shearing device, thereby ensuring the normal operation of the shearing device.

[0051] Specifically in this embodiment, a spring member 392 is further provided on the protective housing 390. When the shearing device rises to perform a shearing operation, the spring member 392 also rises and is pressed against the inner side of the upper cover of the main housing 100, generating a downward force that helps the gear and rack engage, allowing the shearing device to return to its initial position after completing the shearing operation.

[0052] This embodiment also relates to a base station type sweeping robot, comprising: a sweeping robot (not shown), a base station (not shown), a roller brush (not shown), and the cleaning device described above. The roller brush is disposed at the bottom of the sweeping robot. The cleaning device is disposed on the base station and is used to cut foreign matter from the roller brush.

[0053] The working principle of the present invention is as follows: when using the present invention, the sweeping robot stands along the cleaning device, aligning the roller brush at the bottom of the sweeping robot with the opening slot 110. When the driving device 200 is driven in one direction, the first transmission member 400 is driven to rise along the second transmission member 500, driving the shearing device to rise, and then the shearing assembly 300 is raised to the opening slot 110 to make axial reciprocating movements to cut foreign matter. At the same time, the soft seal 111 is pushed open by the rising shearing assembly 300. When the driving device 200 is driven in the other direction, the first transmission member 400 is driven to descend along the second transmission member 500, causing the shearing device to descend to the bottom plate 120. At the same time, when the shearing assembly 300 descends, the soft seal 111 automatically recovers, enabling the shearing device to rise and fall from the opening slot 110 to cut foreign matter, without affecting the cleaning efficiency of the sweeping robot and improving the cleaning effect. Therefore, the present invention has the advantages of cleaning foreign matter without affecting the cleaning efficiency and improving the cleaning effect.

[0054] 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 cleaning device, characterized in that: include: A main housing (100) provided with an opening groove (110), a bottom plate (120) mounted on the bottom of the main housing (100), and a shearing device mounted on the bottom plate (120), the shearing device being used to cut foreign matter on the roller brush; The shearing device comprises: A driving device (200) is mounted on the base plate (120); A shearing assembly (300) is fixedly mounted on the output shaft of the driving device (200), and the shearing assembly (300) moves axially back and forth to cut foreign matter; A first transmission member (400) is fixedly assembled between the output shaft of the driving device (200) and the shearing assembly (300); and A second transmission member (500) is fixedly mounted on the bottom plate (120), and the first transmission member (400) and the second transmission member (500) cooperate with each other to drive the shearing device to move up and down in the opening groove (110); When the driving device (200) is driven to transmit in one direction, it drives the first transmission member (400) to transmit upward along the second transmission member (500), so that the shearing device is raised to the opening groove (110), and the shearing assembly (300) moves axially back and forth to cut foreign matter; when the driving device (200) is driven to transmit in the other direction, it drives the first transmission member (400) to transmit downward along the second transmission member (500), so that the shearing device is lowered to the bottom plate (120).

2. The cleaning device according to claim 1, characterized in that The shearing assembly (300) comprises: an eccentric cam (310) fixedly assembled on the output shaft of the driving device (200), a transmission block (320) plugged into the eccentric cam (310), a first shearing piece plugged into the transmission block (320), and a second shearing piece fixedly connected to the first shearing piece; when the driving device (200) drives the eccentric cam (310), it drives the transmission block (320) to move, thereby driving the first shearing piece to axially reciprocate relative to the second shearing piece.

3. The cleaning device according to claim 2, characterized in that The first shearing member comprises: a first shearing bracket (330), a fixing plate (340) fixedly assembled in the first shearing bracket (330), a shearing knife pressing piece (350) arranged on the fixing plate (340), and a first shearing knife (360) for the shearing knife pressing piece (350) to pass through, and a plug-in plate (361) is provided at the bottom of the first shearing knife (360); The second shearing member comprises: a second shearing bracket (370), and a second shearing knife (380) assembled on the second shearing bracket (370); The eccentric cam (310) comprises: a convex strip (311) arranged toward one side of the transmission block (320); The transmission block (320) comprises: a groove (321) facing one side of the eccentric cam (310) and arranged corresponding to the protruding strip (311), and a plug-in slot (322) arranged corresponding to the plug-in plate (361); The protruding strip (311) is inserted into the groove (321), and the plug-in plate (361) is inserted into the plug-in slot (322). When the driving device (200) drives the eccentric cam (310) to transmit, the transmission block (320) drives the first shearing knife (360) to move axially back and forth relative to the second shearing knife (380).

4. The cleaning device according to claim 3, characterized in that The fixed plate (340) is provided with a movable block (341) penetrating the first shearing knife (360), and the second shearing knife (380) is provided with a first avoidance hole (381) for avoiding the movable block (341), and a second avoidance hole (382) for avoiding the transmission block (320).

5. The cleaning device according to claim 3, characterized in that The second shearing knife (380) is provided with a first through hole (383) for the shearing knife pressing piece (350) to pass through. The shearing knife pressing piece (350) passes through the first through hole (383) so that the second shearing knife (380) and the first shearing knife (360) are pressed against each other.

6. The cleaning device according to claim 5, characterized in that The shear blade pressing plate (350) comprises: a first pressing plate (351) extending toward one side of the first through hole (383), and a second pressing plate (352) spaced apart from the first pressing plate (351); the first pressing plate (351) is provided with a first protrusion (3511) extending upward, and the second pressing plate (352) is provided with a second protrusion (3521) extending downward; The second shearing knife (380) is also provided with a first blocking groove (3831) located on the upper side of the first through hole (383) and used to block the first protrusion (3511), and a second blocking groove (3832) located on the lower side of the first through hole (383) and used to block the second protrusion (3521).

7. The cleaning device according to claim 3, characterized in that The first shearing bracket (330) and the second shearing bracket (370) are fixedly connected via a fixing member (300a), and the first shearing knife (360) is further provided with a third avoidance hole (362) for avoiding the fixing member (300a); A movable cavity for accommodating the first shearing knife (360) and the second shearing knife (380) is provided between the first shearing bracket (330) and the second shearing bracket (370). The length of the first shearing knife (360) is shorter than that of the second shearing knife (380). The first shearing knife (360) moves axially back and forth relative to the second shearing knife (380) in the movable cavity to cut foreign matter.

8. The cleaning device according to claim 7, characterized in that A limiting column (121) is also provided on the bottom plate (120), and a travel hole (331) sleeved on the limiting column (121) is also provided on the first shearing member. A guide rod member having a hollow structure, sleeved on the limiting column (121), and passing through the travel hole (331) is provided on a side of the main housing (100) facing the bottom of the main housing (100).

9. The cleaning device according to claim 2, characterized in that The shearing device further comprises: a protective shell (390); the driving device (200), the eccentric cam (310) and the first transmission member (400) are arranged in the protective shell (390); and an avoidance groove (391) for avoiding the second transmission member (500) is also provided on the protective shell (390).

10. A base station type sweeping robot, characterized in that: include: A sweeping robot, a roller brush arranged at the bottom of the sweeping robot, a base station, and a cleaning device according to any one of claims 1 to 9, which is arranged on the base station and used to cut foreign matter on the roller brush.

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