Floor brush and cleaning equipment

Abstract

The invention relates to the technical field of household cleaning, and discloses a floor brush and cleaning equipment, the floor brush comprises a shell, a rolling brush, a dirt scraping mechanism and a driving device, and the dirt scraping mechanism is used for scraping dirt on the rolling brush; the driving device is in transmission fit with the dirt scraping mechanism and is used for driving the dirt scraping mechanism to move between a dirt scraping position in contact fit with the rolling brush and an avoiding position in clearance fit with the rolling brush; the cleaning equipment has a working mode and a self-cleaning mode; when the cleaning equipment is in the working mode, the driving device drives the dirt scraping mechanism to move to a dirt scraping position; when the cleaning equipment is in the self-cleaning mode, the cleaning equipment is located in the base station, and the driving device drives the dirt scraping mechanism to move to the avoiding position. In the self-cleaning process, the driving device can drive the dirt scraping mechanism to move to the avoiding position in clearance fit with the rolling brush, so that the dirt scraping mechanism is separated from the rolling brush, friction between the dirt scraping mechanism and the rolling brush is reduced, the service life of the rolling brush is prolonged, the replacement frequency of the rolling brush is reduced, and the replacement cost is saved.

Description

Technical Field

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

[0002] With the development of social economy and people's higher and higher requirements for home environment, cleaning equipment integrating floor washing, mopping and vacuuming effects has come into being and is widely used in people's lives. The cleaning equipment of related technology usually achieves floor cleaning by driving the roller brush to rotate at high speed by a motor. However, the existing cleaning equipment has the problems of fast wear of the bristles of the roller brush, gradual deterioration of the cleaning effect, and high frequency of replacement of the roller brush. Summary of the invention

[0003] In view of this, the present invention provides a floor brush and a cleaning device to solve the problem of rapid wear of the bristles of the roller brush in the cleaning device in the prior art.

[0004] In a first aspect, the present invention provides a floor brush for use in a cleaning device, the floor brush comprising:

[0005] case;

[0006] A roller brush assembly comprises a roller brush rotatably arranged in a housing;

[0007] A scraping mechanism, movably arranged on the housing, for scraping off dirt on the roller brush;

[0008] A driving device, in transmission cooperation with the scraping mechanism, for driving the scraping mechanism to move between a scraping position in contact with the roller brush and a avoiding position in clearance with the roller brush;

[0009] The cleaning device has working mode and self-cleaning mode:

[0010] When the cleaning device is in working mode, the driving device drives the scraping mechanism to move to the scraping position;

[0011] When the cleaning device is in the self-cleaning mode, the cleaning device is located in the base station, and the driving device drives the scraping mechanism to move to the avoidance position.

[0012] Beneficial effect: When the cleaning device is performing normal cleaning work, the driving device drives the scraping mechanism to move to the scraping position that contacts and cooperates with the roller brush, which can effectively clean the dirt attached to the bristles of the roller brush. After the cleaning work is completed, the whole machine is placed on the base station. When receiving the self-cleaning instruction, the driving device can drive the scraping mechanism to move to the avoidance position that cooperates with the gap of the roller brush, so that the scraping mechanism is separated from the roller brush, avoiding the interference fit between the two in the self-cleaning mode, which leads to the problem of rapid wear of the bristles. Under the premise of ensuring the scraping performance of the scraping mechanism, the present invention can avoid the roller brush during the self-cleaning process, reduce the friction between the scraping mechanism and the roller brush, increase the service life of the roller brush, reduce the replacement frequency of the roller brush, and save replacement costs.

[0013] In an optional embodiment, the driving device includes a driving mechanism and a gear transmission mechanism, and the gear transmission mechanism is arranged between the driving mechanism and the scraping mechanism;

[0014] The driving mechanism drives the scraping mechanism to move between a scraping position in contact with the roller brush and a avoiding position in gap with the roller brush through the gear transmission mechanism.

[0015] Beneficial effect: By adopting a gear transmission mechanism as a transmission mechanism to drive the scraping mechanism to move, not only the structure is simple, but also the transmission is accurate and reliable, the transmission efficiency is high, and the scraping mechanism can move accurately and efficiently between the scraping position and the avoidance position.

[0016] In an optional embodiment, the scraping mechanism is rotatably mounted on the housing, and the driving mechanism is fixedly mounted on the housing;

[0017] The gear transmission mechanism includes:

[0018] A driving gear, fixed on the output shaft of the driving mechanism;

[0019] The driven gear is meshed and transmitted between the driven gear and the scraping mechanism. The driving mechanism drives the driving gear and the driven gear to rotate, so as to drive the scraping mechanism to rotate between the scraping position and the avoidance position.

[0020] Beneficial effect: The scraping mechanism is rotatably mounted on the shell. When the cleaning device switches between the working mode and the self-cleaning mode, the scraping mechanism can be controlled to rotate between the scraping position and the avoidance position by the driving device. Therefore, under the premise of ensuring the scraping performance of the scraping mechanism, it can also be ensured that during the self-cleaning process, the scraping mechanism is separated from the roller brush, thereby reducing the friction between the scraping mechanism and the roller brush and increasing the service life of the roller brush. The scraping mechanism moves between the scraping position and the avoidance position by rotating, which occupies less space than a translational method.

[0021] In an optional embodiment, the driving mechanism includes:

[0022] A drive motor having an output shaft;

[0023] The motor bracket is fixedly mounted on the housing, and the driving motor is mounted on the motor bracket;

[0024] The gear transmission mechanism also includes a gear cover, which is assembled and connected to the motor bracket to limit the driving gear and the driven gear between the gear cover and the motor bracket.

[0025] Beneficial effect: The gear cover can cooperate with the motor bracket to limit the driving gear and the driven gear between the two, thereby reducing the risk of the driving gear and the driven gear falling off and improving the operating stability of the driving gear and the driven gear.

[0026] In an optional embodiment, the floor brush further includes:

[0027] The position detection mechanism is used to send out corresponding sensing signals when the scraping mechanism moves to the scraping position and the avoidance position, so as to limit the scraping stroke of the scraping mechanism.

[0028] Beneficial effect: Through the position detection mechanism set up, when the driving device drives the scraping mechanism to move to the scraping position and the avoidance position, it can send out a corresponding arrival signal. When the controller of the cleaning device receives the arrival signal, it controls the driving device to stop driving, thereby realizing precise control of the position of the scraping mechanism, ensuring the accuracy of the scraping stroke, avoiding excessive movement or out of position of the scraping mechanism when moving between the scraping position and the avoidance position, avoiding affecting the scraping and cleaning effect of the scraping mechanism on the roller brush, or the scraping mechanism and the roller brush cannot be effectively separated in the self-cleaning mode, and the bristles still have wear problems.

[0029] In an optional embodiment, the position detection mechanism includes a first position switch, a second position switch and a trigger;

[0030] When the scraping mechanism moves to the scraping position, the triggering member can trigger the first position switch;

[0031] When the scraping mechanism moves to the avoidance position, the triggering member can trigger the second position switch.

[0032] Beneficial effect: when the cleaning device receives a cleaning instruction, the driving device drives the scraping mechanism to rotate to the scraping position, and the trigger member can trigger the first position switch. When the cleaning device receives the trigger signal of the first position switch, the driving device is controlled to stop driving the scraping mechanism to rotate, so that the scraping mechanism remains in the scraping position. At this time, the roller brush is controlled to rotate at a high speed, and the scraping mechanism can clean the dirt on the roller brush, scrape the dirt off, and suck it away through the suction mechanism, thereby ensuring the scraping performance of the scraping mechanism; when the whole machine is placed in the base station and receives the self-cleaning instruction, the driving device drives the scraping mechanism to rotate to the avoidance position, and the trigger member can trigger the second position switch. When the cleaning device receives the trigger signal of the second position switch, the driving device is controlled to stop driving the scraping mechanism to rotate, so that the scraping mechanism remains in the avoidance position. At this time, the scraping mechanism is separated from the roller brush to avoid friction.

[0033] In an optional embodiment, the scraping mechanism includes:

[0034] A support is rotatably mounted on the housing, and the support is provided with an engaging portion for engaging with the driving device for transmission;

[0035] The scraper is detachably mounted on the support, and is provided with a plurality of scraping teeth for scraping dirt off the bristles of the roller brush.

[0036] Beneficial effects: through the meshing part arranged on the support, the meshing transmission between the meshing part and the driving device can be utilized to drive the entire scraping mechanism to rotate between the scraping position and the avoidance position; the scraper can be detachably mounted and fixed on the support, which is convenient for disassembly and assembly.

[0037] In an optional embodiment, the scraping mechanism further includes:

[0038] The reset member is arranged on the support and is used for applying a force to the support to drive the scraper to move in a direction close to the roller brush.

[0039] Beneficial effect: By setting a reset piece on the support, when the force of the driving mechanism on the scraping mechanism is removed, the reset piece can drive the scraper to rotate in the direction close to the roller brush, so that the scraping mechanism automatically resets to the scraping position, facilitating the normal subsequent scraping work, and at the same time avoiding the scraping mechanism being too flexible, rotating at will, and being unstable.

[0040] In an optional embodiment, the reset member includes a torsion spring, and two ends of the torsion spring abut against the housing and the support respectively;

[0041] There are two torsion springs, which are arranged at two ends of the support.

[0042] Beneficial effects: The reset member adopts a torsion spring structure, which requires less installation space and is more convenient to install than conventional springs, and provides a more stable and reliable elastic holding force; in addition, by providing two torsion springs at both ends of the support, the problem of twisting of the torsion spring scraping mechanism that is easily caused by a single-sided torsion spring scraping mechanism can be effectively avoided, further improving the balance stability of the scraping mechanism during the reset process.

[0043] In a second aspect, the present invention further provides a cleaning device, comprising a body and a floor brush of any one of the above-mentioned embodiments installed at the bottom of the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A schematic diagram of the structure of a cleaning system in an embodiment of the present invention;

[0046] Figure 2 A schematic diagram of the structure of a cleaning device in an embodiment of the present invention;

[0047] Figure 3 It is a schematic diagram of the structure of a floor brush in an embodiment of the present invention;

[0048] Figure 4 for Figure 3 A schematic diagram of the structure after removing the upper shell of the shell;

[0049] Figure 5 for Figure 3 Axonometric section view of

[0050] Figure 6 It is a schematic diagram of the coordination of the roller brush assembly, the scraping mechanism, the driving device and other components when the cleaning device in the embodiment of the present invention is in the working mode;

[0051] Figure 7 It is a schematic diagram of the coordination of the roller brush assembly, the scraping mechanism, the driving device and other components when the cleaning device in the embodiment of the present invention is in the self-cleaning mode;

[0052] Figure 8 It is a schematic diagram showing the principle of the movement state of the roller brush cover of the cleaning device from the working mode to the self-cleaning mode in an embodiment of the present invention;

[0053] Fig. 9 A schematic diagram of the movement state principle of the roller brush cover of the cleaning device from the self-cleaning mode to the working mode in an embodiment of the present invention;

[0054] Fig.10 An isometric cross-sectional view of a floor brush of a cleaning device at a position switch according to an embodiment of the present invention;

[0055] Fig.11 A schematic diagram of the structure of a driving device at one angle in an embodiment of the present invention;

[0056] Fig.12 A schematic diagram of the structure of the cleaning device in another angle according to an embodiment of the present invention;

[0057] Fig.13 It is a structural schematic diagram of the driving gear in an embodiment of the present invention;

[0058] Fig.14 An exploded view of a driving device in an embodiment of the present invention;

[0059] Fig.15 It is a structural schematic diagram of a dirt scraping mechanism in an embodiment of the present invention;

[0060] Fig.16 An exploded view of the dirt scraping mechanism in an embodiment of the present invention;

[0061] Fig.17 This is a schematic diagram of the structure of the back cover in an embodiment of the present invention;

[0062] Fig.18 It is a schematic diagram of the structure after the roller brush cover, the first rotating shaft, the elastic reset member and the sealing strip are assembled in the embodiment of the present invention;

[0063] Fig.19 for Fig.18 Exploded diagram of

[0064] Fig. 20 It is a schematic diagram of the structure after the roller brush cover and the first rotating shaft are assembled in an embodiment of the present invention.

[0065] Description of reference numerals:

[0066] 100, cleaning equipment; 101, floor brush; 102, body; 200, base station;

[0067] 10. Shell; 11. Upper shell; 12. Lower shell; 13. Middle cover;

[0068] 20. Roller brush assembly; 21. Roller brush; 22. Roller brush cover; 221. Roller brush cover body; 222. Connecting portion; 23. First rotating shaft; 24. Elastic reset member; 25. Sealing strip;

[0069] 30. Scraping mechanism; 301. Linkage component; 31. Support; 310. Engaging portion; 311. Front cover; 312. Rear cover; 313. Rotating sleeve; 314. Reset member; 32. Scraper; 33. Water baffle; 34. Pressing plate;

[0070] 40. Driving device;

[0071] 41. driving mechanism; 411. driving motor; 412. motor bracket; 413. motor bracket cover; 414. supporting ring;

[0072] 42. gear transmission mechanism; 421. driving gear; 4211. triggering member; 422. driven gear;

[0073] 43. gear cover; 430. opening; 431. mounting column;

[0074] 44. First position switch; 45. Second position switch; 46. Screw. DETAILED DESCRIPTION

[0075] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0076] In order to facilitate the cleaning of the roller brush, the existing cleaning equipment usually makes the scraper into a comb shape and fixes it on one side of the roller brush, or uses a floating scraper, which is pushed by the spring at the back, so that the dirt on the roller brush is scraped off by the scraper when the roller brush rotates at high speed to clean the ground. In order to achieve the expected scraping and cleaning effect, the scraper and the roller brush need to have an interference fit to scrape and suck away the dirt. Under the drive of the roller brush motor, the scraper and the roller brush have an interference fit for a long time, which easily causes the bristles on the roller brush to wear. As a result, after the cleaning equipment is used for a long time, the bristles on the roller brush gradually shorten, the gap between the scraper and the roller brush increases, and the scraping and cleaning effect gradually decreases.

[0077] However, during the self-cleaning process of the cleaning device on the base, that is, the roller brush rotates forward and reverse to clean the roller brush cover, there is no need for a scraper to clean the dirt on the roller brush, and the fixed scraper or the floating scraper cannot effectively avoid the roller brush, resulting in prolonged friction between the scraper and the roller brush, which shortens the length of the bristles on the roller brush due to prolonged friction, shortens the service life, and increases the gap between the scraper and the roller brush, which will affect the cleaning effect of the cleaning device over time.

[0078] In the related art, in order to ensure the cleaning effect of the roller brush, the distance between the scraper and the bristles of the roller brush is controlled within a certain size range. However, when the base station is self-cleaning, it is not necessary to clean the dirt. This process takes a long time, causing the bristles and roller brush to wear for a long time, and the scraper and bristles need to be avoided. At present, in the industry, in order to solve the problem that the roller brush of the cleaning equipment is easy to wear and the cleaning effect gradually deteriorates in the later stage, most of them adopt the method of replacing the roller brush, which has a high frequency of replacement and high cost.

[0079] Combine the following Figures 1 to 20 , describing an embodiment of the present invention.

[0080] According to an embodiment of the present invention, on the one hand, the present invention provides a floor brush 101, which is applied to a cleaning device 100. The floor brush 101 includes a shell 10, a roller brush assembly 20, a scraping mechanism 30, and a driving device 40. The roller brush assembly 20 includes a roller brush 21 rotatably arranged in the shell 10; the scraping mechanism 30 is movably arranged in the shell 10, and is used to scrape off dirt on the roller brush 21; it is in transmission cooperation with the scraping mechanism 30, and is used to drive the scraping mechanism 30 to move between a scraping position in contact with the roller brush 21 and an avoidance position in clearance with the roller brush 21; the cleaning device 100 has a working mode and a self-cleaning mode: when the cleaning device 100 is in the working mode, the driving device 40 drives the scraping mechanism 30 to move to the scraping position; when the cleaning device 100 is in the self-cleaning mode, the cleaning device 100 is located in the base station 200, and the driving device 40 drives the scraping mechanism 30 to move to the avoidance position.

[0081] In the above embodiment, when the cleaning device 100 is performing normal cleaning work, the driving device 40 drives the scraping mechanism 30 to move to the scraping position that contacts and cooperates with the roller brush 21, which can effectively clean the dirt attached to the bristles of the roller brush 21. After the cleaning work is completed, the whole machine is placed on the base station 200. When receiving the self-cleaning instruction, the driving device 40 can drive the scraping mechanism 30 to move to the avoidance position that matches the clearance of the roller brush 21, so that the scraping mechanism 30 is separated from the roller brush 21, avoiding the interference fit between the two in the self-cleaning mode, which leads to the problem of rapid wear of the bristles. Under the premise of ensuring the scraping performance of the scraping mechanism 30, the present invention can avoid the roller brush 21 during the self-cleaning process, reduce the friction between the scraping mechanism 30 and the roller brush 21, increase the service life of the roller brush 21, reduce the replacement frequency of the roller brush 21, and save replacement costs.

[0082] In some embodiments, the driving device 40 includes a driving mechanism 41 and a gear transmission mechanism 42, and the gear transmission mechanism 42 is arranged between the driving mechanism 41 and the scraping mechanism 30; the driving mechanism 41 drives the scraping mechanism 30 through the gear transmission mechanism 42 to move between a scraping position in contact with the roller brush 21 and an avoidance position in clearance with the roller brush 21.

[0083] In the above embodiment, the gear transmission mechanism 42 is used as the transmission mechanism to drive the scraping mechanism 30 to move. Not only is the structure simple, but the transmission is also accurate and reliable, and the transmission efficiency is high, so that the scraping mechanism 30 can move accurately and efficiently between the scraping position and the avoidance position.

[0084] Specifically, in order to improve the scraping effect of dirt on the roller brush 21, when the scraping mechanism 30 is in the scraping position, there is an interference fit between the scraping mechanism 30 and the bristles of the roller brush 21. When no cleaning work is performed, in order to reduce the friction between the scraping mechanism 30 and the roller brush 21, when the scraping mechanism 30 is in the avoidance position, the gap between the scraping mechanism 30 and the bristles of the roller brush 21 is greater than the set spacing.

[0085] In some embodiments, the scraping mechanism 30 is rotatably mounted on the shell 10, and the driving mechanism 41 is fixedly mounted on the shell 10; the gear transmission mechanism 42 includes a driving gear 421 and a driven gear 422, and the driving gear 421 is fixed on the output shaft of the driving mechanism 41; the driven gear 422 is meshed and transmitted between the driven gear 422 and the scraping mechanism 30, and the driving mechanism 41 drives the driving gear 421 and the driven gear 422 to rotate, so as to drive the scraping mechanism 30 to rotate between the scraping position and the avoidance position.

[0086] In the above embodiment, the scraping mechanism 30 is rotatably mounted on the shell 10. When the cleaning device 100 switches between the working mode and the self-cleaning mode, the driving device 40 can be used to control the scraping mechanism 30 to rotate between the scraping position and the avoidance position. Therefore, under the premise of ensuring the scraping performance of the scraping mechanism 30, it can also be ensured that during the self-cleaning process, the scraping mechanism 30 is separated from the roller brush 21, thereby reducing the friction between the scraping mechanism 30 and the roller brush 21 and increasing the service life of the roller brush 21. The scraping mechanism 30 moves between the scraping position and the avoidance position by rotating, which occupies less space than a translational method.

[0087] Of course, in other alternative embodiments, the scraping mechanism 30 may also be slidably disposed on the housing 10 . For example, the scraping mechanism 30 is translationally disposed in the housing 10 , and the scraping mechanism 30 may be driven by the driving mechanism 41 to move between the scraping position and the avoidance position.

[0088] In some embodiments, the driving mechanism 41 includes a driving motor 411 and a motor bracket 412, the driving motor 411 has an output shaft; the motor bracket 412 is fixedly mounted on the housing 10, and the driving motor 411 is mounted on the motor bracket 412; the gear transmission mechanism 42 also includes a gear cover 43, the gear cover 43 is assembled and connected to the motor bracket 412 to limit the driving gear 421 and the driven gear 422 between it and the motor bracket 412.

[0089] In the above embodiment, the gear cover 43 is configured to cooperate with the motor bracket 412 to limit the driving gear 421 and the driven gear 422 between the two, thereby reducing the risk of the driving gear 421 and the driven gear 422 falling off and improving the operating stability of the driving gear 421 and the driven gear 422.

[0090] Specifically, the motor bracket 412 includes a motor accommodating portion and a gear mounting portion. The gear mounting portion includes a mounting plate fixedly arranged on one side of the motor accommodating portion. The mounting plate is vertically arranged. A connecting shaft for mounting the driven gear 422 is fixedly arranged on the mounting plate. The driven gear 422 is rotatably sleeved and mounted on the connecting shaft. The mounting plate is also provided with an opening through which the output shaft of the driving motor 411 can extend. The output shaft of the driving motor extends from the opening and is connected and fixed to the driving gear 421. A bolt column is provided on the motor bracket 412, and the gear cover 43 is fixed to the bolt column of the motor bracket 412 by screws 46.

[0091] Furthermore, the driving device 40 further includes a motor bracket cover 413, a mounting groove for accommodating the driving motor 411 is provided in the motor bracket 412, the mounting groove is provided with a top opening, and the motor bracket cover 413 is detachably mounted and fixed at the notch of the mounting groove to seal the driving motor 411 in the mounting groove. Optionally, the housing 10 includes an upper housing 11, a lower housing 12, and a middle cover plate 13 provided between the upper housing 11 and the lower housing 12, and an installation space for installing the driving mechanism 41 is formed between the middle cover plate 13 and the lower housing 12, and the driving mechanism 41 is fixed on the lower housing 12.

[0092] In some embodiments, the floor brush 101 further includes a position detection mechanism for sending a corresponding sensing signal when the scraping mechanism 30 moves to the scraping position and the avoidance position, so as to limit the scraping stroke of the scraping mechanism 30 .

[0093] In the above embodiment, through the position detection mechanism, when the driving device 40 drives the scraping mechanism 30 to move to the scraping position and the avoidance position, a corresponding arrival signal can be issued. When the controller of the cleaning device 100 receives the arrival signal, it controls the driving device 40 to stop driving, thereby realizing precise control of the position of the scraping mechanism 30, ensuring the accuracy of the scraping stroke, avoiding excessive movement or out of position of the scraping mechanism 30 when moving between the scraping position and the avoidance position, avoiding affecting the scraping and cleaning effect of the scraping mechanism 30 on the roller brush 21, or the scraping mechanism 30 and the roller brush 21 cannot be effectively separated in the self-cleaning mode, and the bristles still have wear problems.

[0094] Optionally, the position detection mechanism may be in the form of a distance sensor, a photoelectric sensor, an infrared sensor, a position switch, etc. The position detection mechanism may be arranged on the driving device 40 , the scraping mechanism 30 or the housing 10 .

[0095] In some embodiments, the position detection mechanism includes a first position switch 44, a second position switch 45 and a trigger member 4211; when the scraping mechanism 30 moves to the scraping position, the trigger member 4211 can trigger the first position switch 44; when the scraping mechanism 30 moves to the avoidance position, the trigger member 4211 can trigger the second position switch 45.

[0096] In the above embodiment, when the cleaning device 100 receives a cleaning instruction, the driving device 40 drives the scraping mechanism 30 to rotate to the scraping position, and the trigger member 4211 can trigger the first position switch 44. When the cleaning device 100 receives the trigger signal of the first position switch 44, the driving device 40 is controlled to stop driving the scraping mechanism 30 to rotate, so that the scraping mechanism 30 remains in the scraping position. At this time, the roller brush 21 is controlled to rotate at a high speed, and the scraping mechanism 30 can clean the dirt on the roller brush 21, scrape the dirt off, and suck it away through the suction mechanism, thereby ensuring the scraping performance of the scraping mechanism 30; when the whole machine is placed in the base station 200 and receives a self-cleaning instruction, the driving device 40 drives the scraping mechanism 30 to rotate to the avoidance position, and the trigger member 4211 can trigger the second position switch 45. When the cleaning device 100 receives the trigger signal of the second position switch 45, the driving device 40 is controlled to stop driving the scraping mechanism 30 to rotate, so that the scraping mechanism 30 remains in the avoidance position. At this time, the scraping mechanism 30 is separated from the roller brush 21 to avoid friction.

[0097] Optionally, the trigger member 4211 is disposed on the scraping mechanism 30 or the driving device 40 , and the first position switch 44 and the second position switch 45 are disposed on the side wall of the housing 10 or the driving device 40 .

[0098] Furthermore, the driving device 40 includes a rotating part and a fixed part, wherein the fixed part is fixed to the housing 10, the rotating part includes but is not limited to the output shaft, the driving gear 421, the driven gear 422, and the fixed part includes but is not limited to the motor bracket 412, the gear cover 43 and other structures. The first position switch 44, the second position switch 45 and the trigger 4211 can all be arranged on the driving mechanism 41; or the position switch and the trigger 4211 are both arranged on the gear transmission mechanism 42; or one of the position switch and the trigger 4211 is arranged on the driving mechanism 41, and the other is arranged on the gear transmission mechanism 42.

[0099] In some preferred embodiments, the first position switch 44 and the second position switch 45 are arranged on the gear cover 43, and the trigger 4211 is arranged on the driving gear 421. By arranging the first position switch 44 and the second position switch 45 on the gear cover 43, compared with arranging them on the motor bracket 412, the installation space is larger, and the assembly and maintenance of the first position switch 44 and the second position switch 45 are more convenient. By arranging the trigger 4211 on the driving gear 421, compared with arranging it on the driven gear 422, the speed of the driving motor 411 can be fed back more directly, without conversion, and the response is more timely, and the control is more accurate and efficient.

[0100] Of course, in other alternative embodiments, the first position switch 44 and the second position switch 45 may also be set on the housing 10 or the motor bracket 412, and the trigger member 4211 may also be set on the driven gear 422 or the scraping mechanism 30. This embodiment does not limit the specific positions of the first position switch 44, the second position switch 45 and the trigger member 4211.

[0101] Furthermore, in some embodiments, the first position switch 44 and the second position switch 45 are arranged on the side wall of the gear cover 43 away from the driving gear 421 and the driven gear 422; the trigger member 4211 is a trigger rod fixedly set on the driving gear 421, and the gear cover 43 is provided with an opening 430 for the trigger rod to pass through and to avoid the movement of the trigger rod.

[0102] In the above embodiment, by setting the position switch on the outer wall of the gear cover 43, the back space of the gear cover 43 can be fully utilized, the space utilization rate can be improved, and the overall structure can be more compact. At the same time, the problem that the position switch is set on the inner wall of the gear cover 43 and easily interferes with the movement of the driving gear and the driven gear 422 can be effectively avoided. The trigger member 4211 adopts the structure of the trigger rod, which has a simple structure and is easy to process. The opening 430 opened on the gear cover 43 for the trigger rod to pass through and avoid the movement of the trigger rod facilitates the trigger rod to cooperate with the first position switch 44 and the second position switch 45.

[0103] Specifically, the trigger rod is fixedly arranged on the outer peripheral side of the driving gear 421, and the trigger rod is fixedly arranged on the side wall of the driving gear 421 facing the gear cover 43. Preferably, the trigger rod is integrally formed with the driving gear 421. Furthermore, the opening 430 on the gear cover 43 is an arc-shaped opening, and the trigger rod can move in an arc-shaped trajectory in the opening 430.

[0104] Furthermore, the gear cover 43 is provided with mounting columns 431 for mounting the first position switch 44 and the second position switch 45. Two groups of mounting columns 431 are provided on the gear cover 43. The two groups of mounting columns 431 are corresponding to the installation of two position switches. Each group of mounting columns 431 includes two mounting columns 431 arranged at intervals. Each position switch is provided with two mounting through holes. The first position switch 44 and the second position switch 45 are sleeved on the mounting columns 431 through the two mounting through holes thereon. By installing the first position switch 44 and the second position switch 45 in the above manner, not only the stability of the structure of the first position switch 44 and the second position switch 45 can be ensured, but also disassembly and assembly are convenient. When disassembly is required, the position switch can be directly removed from the mounting column 431. When installing, it can be directly sleeved on the mounting column 431.

[0105] Optionally, the first position switch 44 and the second position switch 45 are mechanical switches. Preferably, the first position switch 44 and the second position switch 45 are micro switches. When the active gear 421 rotates, it drives the trigger member 4211 to move in a set arc track, and the first position switch 44 and the second position switch 45 are arranged on the gear cover 43 at intervals corresponding to the arc track. The two opposite inner side walls of the first position switch 44 and the second position switch 45 are respectively provided with trigger parts, which can be triggered when the trigger member 4211 moves under the drive of the active gear, thereby triggering the first position switch 44 and the second position switch 45. Preferably, the trigger part is a trigger spring.

[0106] In this embodiment, the assembly process of the drive device 40 is as follows: place the drive motor 411 in the installation groove of the motor bracket 412, snap the motor bracket cover 413 into the notch of the motor bracket 412, install the driving gear 421 on the output shaft of the drive motor 411, put the support ring 414 on the output shaft to press the driving gear 421, and then install the driven gear 422 on the motor bracket 412, and then use the gear cover 43 and the motor bracket 412 to cooperate to press the driven gear 422, and then fix the gear cover 43 on the motor bracket 412 with the screw 46, and then assemble the first position switch 44 and the second position switch 45 on the gear cover 43, and the entire drive device 40 is assembled.

[0107] In some embodiments, the scraping mechanism 30 includes a support 31 and a scraper 32. The support 31 is rotatably mounted on the shell 10, and an engaging portion 310 for engaging and transmitting with the driving device 40 is provided on the support 31; the scraper 32 is installed on the support 31, and a plurality of scraping teeth for scraping dirt on the bristles of the roller brush 21 are provided on the scraper 32.

[0108] In the above embodiment, the meshing portion 310 provided on the support 31 can be used to drive the entire scraping mechanism 30 to rotate between the scraping position and the avoidance position by utilizing the meshing transmission between the meshing portion 310 and the gear transmission mechanism 42 .

[0109] Specifically, the meshing portion 310 is a sector gear disposed on the support 31. Preferably, the sector gear is integrally formed with the support 31. The scraper 32 can be fixed on the support 31 by screws or clamping. Preferably, the scraper 32 is fixed on the support 31 by screws. The scraper 32 is detachably mounted on the support 31 for easy disassembly and assembly.

[0110] In some embodiments, the scraping mechanism 30 further includes a reset member 314 , which is disposed on the support 31 and is used to apply a force to the support 31 to drive the scraper 32 to move in a direction close to the roller brush 21 .

[0111] In the above embodiment, by setting the reset member 314 on the support 31, when the force of the driving mechanism 41 on the scraping mechanism 30 is removed, the reset member 314 can drive the scraper 32 to rotate in the direction close to the roller brush 21, so that the scraping mechanism 30 is automatically reset to the scraping position, which is convenient for the normal subsequent scraping work. At the same time, it can also avoid the scraping mechanism 30 being highly flexible, rotating at will, and being unstable in position.

[0112] In some embodiments, the reset member 314 includes a torsion spring, two ends of which are respectively in contact with the housing 10 and the support 31 ; and there are two torsion springs, which are disposed at two ends of the support 31 .

[0113] In the above embodiment, the reset member 314 adopts a torsion spring structure, which requires a smaller installation space and is more convenient to install than a conventional spring, and provides a more stable and reliable elastic retaining force; in addition, by providing two torsion springs at both ends of the support 31, the problem of twisting of the scraping mechanism 30 that is easily caused by the torsion spring being set on one side can be effectively avoided, thereby further improving the balance stability of the scraping mechanism 30 during the reset process.

[0114] Specifically, two installation shafts are provided at both ends of the support 31 , and the torsion springs are correspondingly installed on the two installation shafts, and two torsion arms of the torsion spring are respectively in contact with the support 31 and the housing 10 .

[0115] Furthermore, two second rotating shafts are fixedly provided at both ends of the support 31 , and rotating sleeves 313 are rotatably sleeved on the two second rotating shafts. The rotating sleeves 313 are connected to the housing 10 , thereby realizing the rotational connection between the support 31 and the housing 10 . The scraping mechanism 30 also includes a water baffle 33 and a pressure plate 34. The support 31 includes a front cover 311 and a rear cover 312. The scraper 32 is located at the front side of the support 31. The second rotating shaft and the mounting shaft are both formed on the rear cover 312. The bottom of the rear cover 312 is provided with a mounting hole for mounting the scraper 32. The assembly process of the scraping mechanism 30 is as follows: first, the front cover 311 and the rear cover 312 are glued to prevent water leakage, and then the two rotating sleeves 313 are respectively sleeved on the two second rotating shafts at both ends of the rear cover 312, and then the two torsion springs are respectively sleeved on the mounting shafts at both ends of the rear cover 312, and then the scraper 32 is assembled into the corresponding mounting holes of the rear cover 312, and then the water baffle 33 is pressed on the scraper 32, and then the pressure plate 34 is pressed on the water baffle 33, and fixed with four screws.

[0116] In some embodiments, the roller brush assembly 20 also includes a roller brush cover 22, which is movably disposed on the shell 10 and is located on one side of the roller brush 21. The scraping mechanism 30 and the roller brush cover 22 are linked together. When the scraping mechanism 30 moves to the avoidance position, it can drive the roller brush cover 22 to rotate in a direction close to the roller brush 21, so that the roller brush cover 22 and the roller brush 21 remain in close contact. At this time, the roller brush cover 22 can be self-cleaned by controlling the forward and reverse rotation of the roller brush 21.

[0117] In the above embodiment, by linking the scraping mechanism 30 with the roller brush cover 22, when the cleaning device 100 performs self-cleaning, the scraping mechanism 30 can not only move to an avoidance position to avoid the roller brush 21 to reduce the friction between it and the roller brush 21, thereby increasing the service life of the roller brush 21 and reducing the replacement frequency of the roller brush 21, but also drive the roller brush cover 22 to move to a position in contact with the roller brush 21 to achieve cleaning of the dirt on the roller brush cover 22. Only one driving device 40 is required to control the movement of the scraping mechanism 30 and the roller brush cover 22, thereby saving control costs, simplifying control steps, and effectively solving the problem that the scraping mechanism 30 and the roller brush cover 22 of the self-cleaning device 100 in the related art need to be driven by a separate driving mechanism 41, and the control process is relatively cumbersome and costly.

[0118] In this embodiment, the roller brush cover 22 is located above the roller brush 21, and the roller brush cover 22 and the scraping mechanism 30 can be linked through a linkage mechanism, or can be directly contacted and matched to achieve linkage. When the cleaning device 100 is performing normal cleaning work, the roller brush 21 rotates at a high speed, and the scraping mechanism 30 is in a scraping position with an interference fit with the bristles of the roller brush 21, and can scrape off the dirt on the bristles in time. At this time, there is a set gap between the roller brush cover 22 and the roller brush 21, and the dirt on the roller brush 21 that is not scraped off by the scraping mechanism 30 can be thrown onto the roller brush cover 22 under the action of centrifugal force. When the cleaning device 100 completes the cleaning work, it is placed in the base station 200. At this time, since the roller brush 21 is no longer performing the cleaning work, the scraping mechanism 30 does not need to clean the roller brush 21, and the scraping mechanism 30 moves to an avoidance position that cooperates with the bristle gap of the roller brush 21. At this time, the roller brush cover 22 rotates downward under the linkage of the scraping mechanism 30, keeps close contact with the roller brush 21, and then realizes self-cleaning of the dirt attached to the roller brush cover 22 by controlling the forward and reverse rotation of the roller brush 21.

[0119] In some embodiments, the roller brush cover 22 is rotatably disposed on the shell 10, and a linkage component 301 is disposed on the scraping mechanism 30; the linkage component 301 is limitedly matched with the roller brush cover 22 to convert the movement of the scraping mechanism 30 into power for the roller brush cover 22 to rotate in a direction close to or away from the roller brush 21.

[0120] In the above embodiment, by means of the linkage component 301 provided on the scraping mechanism 30 and limitedly engaging with the roller brush cover 22, when the scraping mechanism 30 moves to the avoidance position, the roller brush cover 22 can be driven by the linkage component 301 to rotate to the self-cleaning position in contact with the roller brush 21, thereby facilitating the roller brush 21 to clean the roller brush cover 22; when the scraping mechanism 30 moves to the scraping position, the roller brush cover 22 can be driven by the linkage component 301 and / or by the elastic reset member to rotate to the initial position in clearance with the roller brush 21, thereby effectively ensuring that when the cleaning device 100 is performing normal cleaning work, there is a set gap between the roller brush cover 22 and the roller brush 21, and will not interfere with the movement of the roller brush 21.

[0121] Specifically, when the scraping mechanism 30 moves to the avoidance position, the linkage component 301 can convert the movement of the scraping mechanism 30 into a downward pressure applied to the roller brush cover 22, so that the roller brush cover 22 and the roller brush 21 are in contact and matched. The limiting matching mode of the linkage component 301 and the roller brush cover 22 includes but is not limited to the form of hinge, hook, abutment, etc. Exemplarily, the linkage component 301 can adopt a structure form such as an articulated seat, a pull ring, a hook, a protrusion, etc.

[0122] In some embodiments, the roller brush cover 22 includes a roller brush cover body 221 and a connecting portion 222; one end of the connecting portion 222 is fixed to the roller brush cover body 221, and the other end is limitedly engaged with the linkage component 301, and the middle part is rotatably connected to the shell 10; when the scraping mechanism 30 moves to the scraping position, the roller brush cover body 221 can be driven by the linkage component 301 to rotate in the direction away from the roller brush 21; when the scraping mechanism 30 moves to the avoidance position, the linkage component 301 can push the roller brush cover body 221 to rotate in the direction close to the roller brush 21 through the connecting portion 222.

[0123] In the above embodiment, the roller brush cover 22 adopts the design of the above-mentioned connecting portion 222, and the connecting portion 222 can not only realize the rotation connection between the roller brush cover 22 and the housing 10, but also can cooperate with the linkage component 301 to realize the linkage between the roller brush cover 22 and the scraping mechanism 30, so that one thing can be used for multiple purposes, and the structure is further simplified. In addition, the connecting portion 222 adopts a method of rotationally connecting with the housing 10 in the middle part, and cooperating with the roller brush cover body 221 and the scraping mechanism 30 at both ends, so that the entire roller brush cover 22 forms a lever-like structure, which can change the direction of the force, so that the scraping mechanism 30 can drive the roller brush cover body 221 to move downward when pushing the connecting portion 222 upward, and close to the roller brush 21, which not only makes the position of the scraping mechanism 30 unrestricted, but also facilitates the installation layout of the scraping mechanism 30, and also enables the scraping mechanism 30 to drive the roller brush cover 22 to move more easily and labor-savingly.

[0124] Specifically, the roller brush cover body 221 is an arc-shaped plate-like structure, and a first axial hole is opened in the middle of the connecting part 222. The first axial hole and the shell 10 are connected by the first rotating shaft 23 to realize the rotational connection between the roller brush cover 22 and the shell 10. Of course, in other alternative embodiments, the middle part of the connecting part 222 can be integrally provided with a first rotating shaft 23.

[0125] When the cleaning device 100 is performing cleaning work normally, the scraping mechanism 30 moves to the scraping position. At this time, the roller brush cover body 221 can be driven by the linkage component 301 to rotate in the direction away from the roller brush 21 to avoid interfering with the high-speed rotating roller brush 21; when the cleaning device 100 is performing self-cleaning, the scraping mechanism 30 moves to the avoidance position. At this time, the linkage component 301 can push the roller brush cover body 221 to rotate in the direction close to the roller brush 21 through the connecting part 222, so that the roller brush cover body 221 is in contact and cooperate with the bristles of the roller brush 21. At this time, the dirt on the inner wall of the roller brush cover body 221 can be cleaned by controlling the forward and reverse rotation of the roller brush 21.

[0126] In some embodiments, in combination Figures 18 to 20 As shown, the linkage component 301 is a push-up protrusion arranged on the scraping mechanism 30 , and the push-up protrusion is in abutment with the roller brush cover 22 .

[0127] In the above embodiment, the linkage component 301 adopts the form of a push-up protrusion, which has a simple structure and is easy to process and form, and the linkage between the scraping mechanism 30 and the roller brush cover 22 is achieved by abutting and cooperating between the push-up protrusion and the roller brush cover 22. Compared with the hinged and hooked methods, the linkage method is simpler and more reliable, and is also convenient for disassembly and assembly as well as later maintenance.

[0128] Furthermore, the roller brush cover body 221 has an inner wall facing the roller brush 21 and an outer wall facing away from the roller brush 21, and the connecting portion 222 is a connecting rib fixedly arranged on the outer wall, and the connecting rib abuts against the push-up protrusion. The connecting portion 222 adopts the form of a connecting rib fixedly arranged on the outer wall of the roller brush cover body 221, and has a simple structure and is easy to process and form.

[0129] Specifically, the linkage component 301 is a protrusion fixedly set on the scraping mechanism 30, and the connecting rib includes an axial body portion located in the middle and a first arm body and a second arm body arranged at a set angle on both sides of the axial body portion. An axial hole is opened in the axial body portion, and the end of the first arm body is fixed on the outer wall of the roller brush cover main body 221, and the end of the second arm body is constructed as an abutting end suitable for abutting with the linkage component 301.

[0130] In some embodiments, two groups of connection parts 222 are provided at both ends of the roller brush cover body 221 along the axial direction of the roller brush 21 ; two groups of linkage components 301 are correspondingly provided, and the two groups of linkage components 301 are matched with the two groups of connection parts 222 in a one-to-one correspondence.

[0131] In the above embodiment, by providing two groups of connecting parts 222 at both ends of the roller brush cover main body 221 and two groups of linkage components 301 correspondingly provided, the two groups of linkage components 301 are abutted and matched with the two groups of connecting parts 222 in a one-to-one correspondence, thereby enabling the roller brush cover main body 221 to be pushed from both sides, making the movement of the roller brush cover main body 221 more balanced and stable.

[0132] In some embodiments, the roller brush assembly 20 also includes a first rotating shaft 23 and an elastic reset member 24, and the connecting portion 222 is rotatably connected to the shell 10 through the first rotating shaft 23; the elastic reset member 24 is arranged on the first rotating shaft 23, and can apply a reset force to the roller brush cover body 221 to rotate in a direction away from the roller brush 21.

[0133] In the above embodiment, by means of the elastic reset member 24 provided on the first rotating shaft 23, the roller brush cover 22 can have a tendency to rotate in the direction away from the roller brush 21. When the scraping mechanism 30 moves to the scraping position and no longer presses down the roller brush cover 22, the elastic reset member 24 can give an upward reset force to the roller brush cover body 221, so that the roller brush cover 22 can automatically reset to the initial position that is in clearance with the roller brush 21, thereby effectively ensuring the normal progress of the cleaning work.

[0134] Preferably, the elastic reset member 24 is a torsion spring, which is sleeved on the first rotating shaft 23, and the two ends of the torsion spring are respectively abutted against the roller brush cover body 221 and the shell 10. When the pushing protrusion does not lift the connecting part 222 to press down the roller brush cover body 221, the torsion spring can give the roller brush cover body 221 an upward reset force, so as to restore the gap between the roller brush cover body 221 and the roller brush 21 for normal cleaning work.

[0135] Of course, in other alternative implementations, the elastic return member 24 may also be a tension spring, for example, which is not limited in this embodiment.

[0136] In this embodiment, along the circumferential direction of the roller brush cover main body 221, the connection position between the connecting rib and the roller brush cover main body 221 is located on one side of the arc-shaped roller brush cover main body 221. When the scraping mechanism 30 moves to the avoidance position, the linkage component 301 moves upward, pushing the second arm of the connecting rib to rotate upward, and under the action of the lever, the first arm of the connecting rib drives the roller brush cover main body 221 to rotate downward, pressing the roller brush cover main body 221 downward, so that the roller brush cover main body 221 contacts and cooperates with the roller brush 21; when the scraping mechanism 30 moves to the scraping position, the linkage component 301 moves upward, and the second arm falls accordingly under the action of the elastic reset member 24. Under the action of the lever, the first arm drives the roller brush cover main body 221 to rotate upward, lifting the roller brush cover main body 221, so that the roller brush cover main body 221 is out of contact with the roller brush 21 and a set gap is formed.

[0137] In some embodiments, the roller brush assembly 20 also includes a sealing strip 25, which is disposed on the inner edge of the roller brush cover body 221. The setting of the sealing strip 25 enables the roller brush cover body 221 to be sealed with the middle cover plate 13 of the shell 10, thereby preventing dirt from being thrown from between the roller brush cover body 221 and the middle cover plate 13 of the shell 10 to other locations in the shell 10, thereby affecting the hygiene of the entire machine.

[0138] According to an embodiment of the present invention, on the other hand, a cleaning device 100 is provided, including a body 102 and a floor brush 101 of any one of the above-mentioned embodiments installed at the bottom of the body 102 .

[0139] Preferably, in this embodiment, the cleaning device 100 is a floor scrubber.

[0140] The following describes the assembly steps of the floor brush 101, the working process and control method of the cleaning device 100 of this embodiment in conjunction with the accompanying drawings.

[0141] 1. The assembly process of floor brush 101 is as follows:

[0142] Fix the driving device 40 to the lower shell 12 of the shell 10 with screws; mesh the meshing portion 310 of the scraping mechanism 30 with the driven gear 422 of the driving device 40 and assemble them at the front end of the lower shell 12, then press the scraping mechanism 30 with the middle cover plate 13, then install the roller brush 21 into the front end of the scraping mechanism 30, and then install the roller brush cover 22 over the roller brush 21 to cover the roller brush 21 and the scraper 32, and the floor brush 101 of the cleaning device 100 is assembled.

[0143] 2. The working process of the cleaning device 100 is as follows:

[0144] When the cleaning device 100 cleans the floor normally, the driving motor 411 drives the scraping mechanism 30 to rotate and move forward. After reaching the scraping position, the scraper 32 can effectively clean the dirt. After cleaning, the whole machine is placed on the base station 200 to start the self-cleaning mode. At this time, the driving motor 411 drives the active gear 421 and the driven gear 422 to move, driving the scraping mechanism 30 to rotate and move backward to the avoidance position, so that the scraper 32 is separated from the roller brush 21 to avoid interference. At the same time, the linkage component 301 on the scraping mechanism 30 moves, driving the roller brush cover 22 to rotate downward and keep close to the roller brush 21. At this time, the roller brush 21 reverses for self-cleaning, and the scraping mechanism 30 moves to the avoidance position, which can not only avoid the roller brush 21, avoid the friction between the scraper 32 and the roller brush 21, and increase the service life of the roller brush 21, but also make the roller brush cover 22 fit with the roller brush 21 to clean the dirt on the roller brush cover 22.

[0145] Furthermore, during the process of cleaning the floor with the cleaning device 100, the driving motor 411 drives the driving gear 421, and the driving gear 421 can drive the driven gear 422. The driven gear 422 drives the scraper 32 to rotate forward and contact the roller brush 21 through the meshing portion 310 on the scraping mechanism 30 (due to limited space, only a limited meshing portion of the gear is left, so the meshing portion 310 is made into a fan-shaped gear). When the trigger member 4211 on the driving gear 421 touches the first position switch 44, the driving motor 411 stops moving, and the scraper 32 rotates to the frontmost position. At this time, the roller brush 21 will rotate at high speed, and the scraper 32 will clean the dirt on the roller brush 21, scrape the dirt off, and then suck it away through the dirt suction chamber.

[0146] When the floor scrubber finishes cleaning the floor, it is placed in the base station 200 and enters the self-cleaning mode. The drive motor 411 drives the scraper 32 to rotate backward through the transmission mechanism. When the trigger member 4211 on the driving gear 421 touches the second position switch 45, the backward rotation of the drive motor 411 stops. At this time, the scraper 32 is disengaged from the roller brush 21 to avoid friction. At the same time, the linkage component 301 on the scraper 32 rotates upward to link the roller brush cover 22, so that the roller brush cover 22 rotates downward, and the roller brush cover 22 contacts the bristles on the roller brush 21. After self-cleaning starts, the bristles can clean the dirt on the roller brush cover 22.

[0147] The cleaning device 100 provided in this embodiment is mainly for improving the scraping function of the scraper 32 and the life of the roller brush 21. Under the premise of ensuring the scraping performance of the scraper 32, in order to increase the service life of the roller brush 21, during the self-cleaning process, the scraper 32 is controlled to separate from the roller brush 21 to reduce the friction between the scraper 32 and the roller brush 21. Through the linkage between the scraping mechanism 30 and the roller brush cover 22, the cleaning function of the roller brush cover 22 can be realized, and the service life of the roller brush 21 can be increased. At the same time, the dirt on the roller brush cover 22 is cleaned synchronously, and the dirt on the roller brush cover 22 is self-cleaned, thereby improving the service life of the roller brush 21 and the cleaning effect of the whole machine.

[0148] 3. The control method of the cleaning device 100 is as follows:

[0149] Step A, working mode, including smart mode or powerful mode, the function is for the user to choose whether to clean according to his own judgment;

[0150] Step B, self-cleaning mode; the function is that the user can choose whether to self-clean according to his own judgment;

[0151] More detailed, step A, smart mode or powerful mode:

[0152] Step A-① The driving motor 411 drives the entire scraping mechanism 30 to rotate forward;

[0153] During the forward rotation of step A-②, the machine determines whether the first position switch 44 is closed. If it is closed, the machine proceeds to step A-③. If it is not closed, the driving motor 411 continues to operate until it is closed within the specified time t, and then proceeds to step A-③. If it is not closed, the machine directly jumps to step A-⑦.

[0154] Step A-③ After the first position switch is closed, the drive motor 411 no longer operates;

[0155] Step A-④ The roller brush motor drives the roller brush 21 to rotate and start cleaning;

[0156] Step A-⑤Continue to work for a set period of time;

[0157] Step A-⑥ determines whether the user chooses to stop the machine; if "yes", proceed to step A-⑦; if "no", return to the working mode selection;

[0158] Step A-⑦ The cleaning device 100 is shut down.

[0159] In more detail, step B, self-cleaning mode:

[0160] Step B-① The driving motor 411 rotates forward to drive the entire structure to reverse;

[0161] During the reversal process of step B-②, the machine determines whether the second position switch is closed. If it is closed, continue to B-③. If it is not closed, the driving motor 411 continues to operate until it is closed within the specified time t, and continue to B-③. If it is not closed, jump directly to A-⑦;

[0162] Step B-③ After the second position switch is closed, the drive motor 411 no longer runs;

[0163] Step B-④ The roller brush motor drives the roller brush 21 to rotate forward and reverse to start self-cleaning;

[0164] Step A-⑤Continue to work for a set period of time;

[0165] Step A-⑥ determines whether the user chooses to stop; "yes" continues to A-⑦; "no" returns to the working mode selection.

[0166] Step A-⑦ The cleaning device 100 is shut down.

[0167] It should be noted that the control method in this embodiment is proposed based on the automatic swinging scraper function of the floor scrubber product. In addition to being applied to this product, the control logic can also be applied to other product series that are common to the same principle.

[0168] In some embodiments, the control method of the cleaning device 100 also includes: the controller of the cleaning device 100 adjusts the scraping stroke of the scraping mechanism 30 according to the usage information of the roller brush 21, so that when the cleaning device 100 is in the cleaning mode, the scraping mechanism 30 can always maintain an interference fit with the bristles.

[0169] In the above embodiment, the scraping stroke of the scraping mechanism 30 is adjusted according to the actual use of the roller brush 21. Therefore, when the cleaning device 100 performs floor cleaning, even if the bristles are worn and shortened, the scraping mechanism 30 can still maintain an interference fit with the bristles, thereby effectively ensuring the scraping mechanism 30's cleaning effect on the dirt on the roller brush 21.

[0170] Specifically, according to the usage information of the roller brush 21 , the scraping stroke of the scraping mechanism 30 is adaptively increased.

[0171] In some embodiments, the usage information includes the usage time of the roller brush 21 or the wear amount of the bristles of the roller brush 21; adjusting the scraping stroke of the scraping mechanism 30 according to the usage information of the roller brush 21 specifically includes the following steps:

[0172] Step S101: obtaining the usage time of the roller brush 21 or the wear amount of the bristles of the roller brush 21;

[0173] Step S102: adjusting the scraping stroke of the scraping mechanism 30 according to the acquired usage time of the roller brush 21 or the wear amount of the bristles of the roller brush 21;

[0174] The adjustment amount of the scraping stroke of the scraping mechanism 30 is proportional to the use time of the roller brush 21 or the wear amount of the bristles.

[0175] In the above embodiment, as the use time of the roller brush 21 increases or the amount of wear on the bristles increases, the scraping stroke of the scraping mechanism 30 is adaptively increased, so that even if the bristles of the cleaning device 100 become shorter after long-term use, the scraping mechanism 30 can still maintain an interference fit with the roller brush 21 during normal cleaning work, effectively ensuring the scraping effect of the scraping mechanism 30 on the dirt on the roller brush 21. This can effectively solve the problem that when the cleaning device 100 is used for a long time, the gap between the scraping mechanism 30 and the roller brush 21 increases, resulting in the scraping mechanism 30 being unable to effectively scrape the dirt on the roller brush 21, affecting the cleaning effect of the cleaning device 100.

[0176] Specifically, in step S102, the scraping stroke of the scraping mechanism 30 is adaptively increased according to the increase in the usage time of the roller brush 21 or the increase in the wear of the bristles of the roller brush 21. That is, the longer the usage time of the roller brush 21 or the greater the wear of the bristles, the greater the adjustment amount of the scraping stroke of the scraping mechanism 30, so as to ensure that the scraping mechanism 30 can always have an interference fit with the bristles when cleaning the roller brush 21.

[0177] Furthermore, the cleaning device 100 is provided with a timing device for calculating the use time of the roller brush 21. The controller of the cleaning device 100 can calculate the increase in the scraping stroke of the scraping mechanism 30 according to the use time of the roller brush 21 according to a set algorithm formula, and then calculate the rotation angle of the drive motor 411. For example, the scraping stroke of the scraping mechanism 30 is adjusted once every month.

[0178] Alternatively, the cleaning device 100 is provided with a bristle wear detection mechanism for detecting the amount of bristle wear, and the controller of the cleaning device 100 can calculate the increase in the scraping stroke of the scraping mechanism 30 according to the amount of bristle wear, and then calculate the rotation angle of the drive motor 411. For example, each time the bristle wear is detected to be a set length, the scraping stroke of the scraping mechanism 30 is controlled to increase by a corresponding set amount. Optionally, the bristle wear detection mechanism can be installed on the housing 10 of the floor brush 101, and the amount of bristle wear can be analyzed and determined by detecting the distance between it and the bristles. The bristle wear detection mechanism can be a distance sensor, an ultrasonic sensor, an infrared sensor, etc.

[0179] It should be noted that, in this embodiment, the increase in the scraping stroke of the scraping mechanism 30 can be adjusted accordingly by controlling the interference fit between the scraping mechanism 30 and the bristles to remain unchanged, or the abutment force between the scraping mechanism 30 and the bristles to remain unchanged.

[0180] The cleaning device 100 provided in this embodiment can, according to the cleaning status, during the cleaning process, the scraper 32 can effectively cooperate with the roller brush 21 to scrape dirt. During the self-cleaning process, the scraper 32 is controlled to separate from the roller brush 21 by driving the motor 411, thereby reducing the friction between the scraper 32 and the roller brush 21, increasing the service life of the roller brush 21, reducing the replacement frequency of the roller brush 21, and improving the user experience. When the whole machine is placed in the base station 200 and receives the self-cleaning instruction, the driving motor 411 drives the scraper 32 to rotate to the avoidance position, and the trigger member 4211 can trigger the second position switch 45. When the cleaning device 100 receives the trigger signal of the second position switch 45, it controls the driving device 40 to stop driving the scraping mechanism 30 to rotate, so that the scraping mechanism 30 remains in the avoidance position. At this time, the scraping mechanism 30 is disengaged from the roller brush 21 to avoid friction. At the same time, the linkage component 301 on the scraping mechanism 30 rotates upward, and the roller brush cover 22 is linked to make the roller brush cover body 221 rotate downward to the self-cleaning position in contact with the bristles on the roller brush 21. At this time, the roller brush cover body 221 has a slight interference with the bristles, and then the roller brush 21 is controlled to rotate forward and reverse, and the bristles on the roller brush 21 can realize self-cleaning of the dirt on the roller brush cover 22, thereby improving the cleaning effect of the whole machine.

[0181] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall all fall within the protection scope of the embodiments of the present application.

Claims

1. A floor brush, used in a cleaning device (100), characterized in that: The floor brush (101) comprises: Housing (10); A roller brush assembly (20) comprising a roller brush (21) rotatably arranged in the housing (10); A scraping mechanism (30) movably disposed on the housing (10) and used for scraping dirt off the roller brush (21); A driving device (40) is in transmission cooperation with the scraping mechanism (30) and is used to drive the scraping mechanism (30) to move between a scraping position in contact with the roller brush (21) and a avoiding position in clearance cooperation with the roller brush (21); The cleaning device (100) has a working mode and a self-cleaning mode: When the cleaning device (100) is in working mode, the driving device (40) drives the scraping mechanism (30) to move to the scraping position; When the cleaning device (100) is in a self-cleaning mode, the cleaning device (100) is located in a base station (200), and the driving device (40) drives the scraping mechanism (30) to move to the avoidance position.

2. The floor brush according to claim 1, characterized in that: The driving device (40) comprises: A driving mechanism (41); A gear transmission mechanism (42) is arranged between the driving mechanism (41) and the scraping mechanism (30), and the driving mechanism (41) drives the scraping mechanism (30) to move between a scraping position in contact with the roller brush (21) and a avoiding position in clearance with the roller brush (21) via the gear transmission mechanism (42).

3. The floor brush according to claim 2, characterized in that: The scraping mechanism (30) is rotatably mounted on the housing (10), and the driving mechanism (41) is fixedly mounted on the housing (10); The gear transmission mechanism (42) comprises: A driving gear (421) fixed on the output shaft of the driving mechanism (41); A driven gear (422) is meshedly driven between the driven gear (422) and the scraping mechanism (30), and the driving mechanism (41) drives the driving gear (421) and the driven gear (422) to rotate, thereby driving the scraping mechanism (30) to rotate between the scraping position and the avoidance position.

4. The floor brush according to claim 3, characterized in that: The driving mechanism (41) comprises: A driving motor (411) having the output shaft; A motor bracket (412) is fixedly mounted on the housing (10), and the drive motor (411) is mounted on the motor bracket (412); The gear transmission mechanism (42) further comprises a gear cover (43), wherein the gear cover (43) is assembled and connected to the motor bracket (412) so as to limit the driving gear (421) and the driven gear (422) between the gear cover and the motor bracket (412).

5. The floor brush according to any one of claims 1 to 4, characterized in that: The floor brush (101) further comprises: The position detection mechanism is used to send out corresponding sensing signals when the scraping mechanism (30) moves to the scraping position and the avoidance position, so as to limit the scraping stroke of the scraping mechanism (30).

6. The floor brush according to claim 5, characterized in that: The position detection mechanism comprises a first position switch (44), a second position switch (45) and a trigger member (4211); When the scraping mechanism (30) moves to the scraping position, the trigger member (4211) can trigger the first position switch (44); When the scraping mechanism (30) moves to the avoidance position, the trigger member (4211) can trigger the second position switch (45).

7. The floor brush according to any one of claims 1 to 4, characterized in that: The dirt scraping mechanism (30) comprises: A support (31) is rotatably mounted on the housing (10), and the support (31) is provided with an engaging portion (310) for engaging with the driving device (40) for transmission; A scraper (32) is mounted on the support (31), and a plurality of scraping teeth for scraping dirt off the bristles of the roller brush (21) are provided on the scraper (32).

8. The floor brush according to claim 7, characterized in that: The scraping mechanism (30) further comprises: A reset member (314) is arranged on the support (31) and is used to apply a force to the support (31) to drive the scraper (32) to move in a direction close to the roller brush (21).

9. The floor brush according to claim 8, characterized in that: The reset member (314) comprises a torsion spring, and two ends of the torsion spring are respectively in contact with the housing (10) and the support (31); There are two torsion springs, which are arranged at two ends of the support (31).

10. A cleaning device, characterized in that: It comprises a body (102) and a floor brush (101) according to any one of claims 1 to 9 installed at the bottom of the body (102).

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