Self-cleaning type rolling brush and cleaning robot

Abstract

The utility model relates to a self-cleaning type rolling brush and a cleaning robot, and aims to solve the problems that entanglements cannot be cleaned in time and the butt joint difficulty is increased. The self-cleaning fan comprises a fan body and a cleaning device. The self-cleaning type rolling brush comprises a rolling brush base; the rolling brush body is rotatably arranged on the rolling brush base; and a cutting mechanism. The cutting mechanism comprises a moving base frame movably arranged on the rolling brush base, a cutting knife assembly movably arranged on the moving base frame, a state driving mechanism in driving connection with the moving base frame and a cutting driving mechanism in driving connection with the cutting knife assembly. The moving base frame can be driven by the state driving mechanism to move relative to the rolling brush base so as to drive the cutting knife assembly to be close to or away from the rolling brush body. The cutting knife assembly can be driven by the cutting driving mechanism to move relative to the rolling brush body and is used for cutting entanglements wound on the rolling brush body.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a self-cleaning roller brush and a cleaning robot. Background Art

[0002] Cleaning robots such as sweepers or scrubbers are now commonly used smart home appliances and are often used in conjunction with base stations. The base stations can automatically dock with the cleaning robots, and the docking ports can use the base to charge the cleaning robots for battery life or to achieve other functions.

[0003] A cleaning robot generally uses the rotation of its bottom roller brush to clean the floor. Since the roller brush is often entangled with hair or other entanglements during the cleaning process, if these entanglements are not removed from the roller brush in time, the cleaning effect of the cleaning robot will be affected; therefore, existing base stations are usually equipped with a hair cleaning mechanism, so that when the sweeping robot returns to the base station for charging and maintenance, the hair cleaning mechanism can be used to clean the hair of the roller brush of the sweeping robot.

[0004] However, existing sweeping robots not only need to return to the base station for maintenance to clean hair, but are unable to clean the roller brush in time during the cleaning process. In addition, the hair cleaning mechanism needs to be aligned with the hair cutting part on the roller brush, which requires higher docking accuracy between the sweeping robot and the base station, increasing the difficulty of docking. Utility Model Content

[0005] Based on this, it is necessary to address the problem that entangled objects cannot be cleaned in time and the difficulty of docking increases. The utility model provides a self-cleaning roller brush and a cleaning robot.

[0006] In one embodiment of the present application, the utility model provides a self-cleaning roller brush, comprising:

[0007] Roller brush base;

[0008] a roller brush body, the roller brush body being rotatably disposed on the roller brush base; and

[0009] A cutting mechanism, the cutting mechanism comprising a moving base movably arranged on the roller brush base, a cutting knife assembly movably arranged on the moving base, a state driving mechanism drivingly connected to the moving base, and a cutting driving mechanism drivingly connected to the cutting knife assembly; the moving base can be driven by the state driving mechanism to move relative to the roller brush base to drive the cutting knife assembly to approach or move away from the roller brush body; the cutting knife assembly can be driven by the cutting driving mechanism to move relative to the roller brush body for cutting the windings wound on the roller brush body.

[0010] According to one embodiment of the present application, the movable base can be radially slidably disposed on the roller brush base; and the cutting knife assembly can be axially slidably disposed on the movable base.

[0011] According to one embodiment of the present application, the state driving mechanism includes a state driving motor installed on the roller brush base and a state driving gear connected to the output shaft of the state driving motor; the motion base includes a motion rack connected to the core of the state driving gear and a sliding seat fixedly connected to the motion rack.

[0012] According to one embodiment of the present application, the cutting drive mechanism includes a cutting drive motor installed on the sliding seat and a cutting drive gear connected to the output shaft of the cutting drive motor; the cutting knife assembly includes a rack bracket meshed with the cutting drive gear and a cutting knife body fixedly connected to the rack bracket, and the cutting knife body extends from the rack bracket toward the roller brush body.

[0013] According to one embodiment of the present application, the roller brush body has an axially extending strip-shaped cutting opening.

[0014] According to one embodiment of the present application, the self-cleaning roller brush further includes a position monitoring component, which includes a rotation position monitoring mechanism and a sliding position monitoring mechanism; the rotation position monitoring mechanism is arranged between the roller brush base and the roller brush body, and is used to monitor the rotation position of the roller brush body; the sliding position monitoring mechanism is arranged between the roller brush base and the cutting mechanism, and is used to monitor the movement position of the cutting knife assembly.

[0015] According to one embodiment of the present application, the rotation position monitoring mechanism includes a rotation position sensor arranged on the roller brush base and a rotation position positioning member matching the rotation position sensor, and the rotation position positioning member is arranged at a position on the roller brush body corresponding to the strip-shaped cutting opening, so that when the rotation position sensor senses the rotation position positioning member, the cutting knife assembly is aligned with the strip-shaped cutting opening of the roller brush body.

[0016] According to one embodiment of the present application, the roller brush base includes a roller brush top cover, a pair of roller brush end covers connected to the roller brush top cover, and a roller brush drive mechanism driven by the roller brush body, and the axial ends of the roller brush body are rotatably connected to the roller brush end covers respectively; the rotation position sensor is installed on the roller brush end covers, and the rotation position positioning piece is installed on the end of the roller brush body adjacent to the rotation position sensor.

[0017] According to one embodiment of the present application, the sliding position monitoring mechanism includes a first sliding position sensor arranged on the roller brush base, a first sliding position positioning member matching the first sliding position sensor, a second sliding position sensor arranged on the roller brush base, and a second sliding position positioning member matching the second sliding position sensor; the first sliding position positioning member is arranged at a position on the moving base corresponding to an initial state, and the second sliding position positioning member is arranged at a position on the moving base corresponding to a cutting state.

[0018] According to one embodiment of the present application, the sliding position monitoring mechanism further includes a pair of third sliding position sensors respectively arranged on the moving base frame and a pair of third sliding position positioning members respectively corresponding to the third sliding position sensors; the two third sliding position positioning members are respectively arranged at positions on the cutting knife assembly corresponding to the axial ends of the strip cutting opening.

[0019] According to one embodiment of the present application, the sliding position monitoring mechanism further includes a fourth sliding position sensor matching the third sliding position positioning member, and the fourth sliding position sensor is arranged on the moving base between the two third sliding position sensors to correspond to the middle part of the strip cutting.

[0020] According to one embodiment of the present application, the rotational position sensor, the first sliding position sensor, the second sliding position sensor, the third sliding position sensor and the fourth sliding position sensor are all Hall circuit boards; the rotational position positioning member, the first sliding position positioning member, the second sliding position positioning member and the third sliding position positioning member are all magnets that can be sensed by the Hall circuit board.

[0021] According to another aspect of the present application, an embodiment of the present application further provides a cleaning robot, comprising:

[0022] The robot body; and

[0023] Any of the self-cleaning roller brushes described above, wherein the self-cleaning roller brush is assembled on the robot body.

[0024] In summary, since the self-cleaning roller brush of the present application is itself equipped with a cutting mechanism, instead of installing a hair cleaning mechanism on a base station as in the prior art, the cleaning robot of the present application does not need to dock the self-cleaning roller brush with the base, and can use the cutting mechanism to cut the entangled objects wrapped around the roller brush body as needed. Not only can the roller brush be cleaned of entangled objects such as hair in a timely manner, but it also helps to reduce the docking accuracy requirements between the cleaning robot and the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of a cleaning robot after docking according to an embodiment of the present application;

[0026] Figure 2 A schematic diagram showing a state of the cleaning robot according to the above embodiment of the present application before docking is shown;

[0027] Figure 3 A three-dimensional schematic diagram of a self-cleaning roller brush in a cleaning robot according to the above embodiment of the present application is shown;

[0028] Figure 4 An exploded schematic diagram of a self-cleaning roller brush according to the above embodiment of the present application is shown;

[0029] Figure 5 A three-dimensional schematic diagram of the self-cleaning roller brush after removing the roller brush lamp cover according to the above embodiment of the present application is shown;

[0030] Figure 6 Shows Figure 5 An enlarged schematic diagram of a part A in the self-cleaning roller brush shown;

[0031] Figure 7 A cross-sectional schematic diagram of a self-cleaning roller brush according to the above embodiment of the present application is shown;

[0032] Figure 8 Shows Figure 7 An enlarged schematic diagram of a part B in the self-cleaning roller brush shown;

[0033] Fig. 9 Shows Figure 7 An enlarged schematic diagram of part C in the self-cleaning roller brush is shown.

[0034] Main component symbol description: 1. Self-cleaning roller brush; 10. Roller brush base; 11. Roller brush top cover; 12. Roller brush end cover; 13. Roller brush drive mechanism; 20. Roller brush body; 200. Strip cutting opening; 30. Cutting mechanism; 31. Motion base; 311. Motion rack; 312. Sliding seat; 32. Cutting knife assembly; 321. Rack bracket; 322. Cutting knife body; 33. State drive mechanism; 331. State drive motor; 332. State drive gear; 34. Cutting drive mechanism; 341. Cutting drive motor; 34 2. Cutting drive gear; 40. Position monitoring assembly; 41. Rotational position monitoring mechanism; 411. Rotational position sensor; 412. Rotational position positioning member; 42. Sliding position monitoring mechanism; 421. First sliding position sensor; 422. First sliding position positioning member; 423. Second sliding position sensor; 424. Second sliding position positioning member; 425. Third sliding position sensor; 426. Third sliding position positioning member; 427. Fourth sliding position sensor; 50. Control circuit board; 2. Robot body; 3. Base.

[0035] The above main component symbols are combined with the accompanying drawings and specific implementation methods to further illustrate the present invention in detail. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] Considering that the existing sweeping robots not only need to clean hair when they return to the base station for maintenance, but are unable to clean the hair of the roller brush in time during the cleaning process, but also need to ensure that the hair cleaning mechanism is aligned with the hair cutting part on the roller brush, resulting in a higher docking accuracy between the sweeping robot and the base station, which increases the difficulty of docking. Therefore, the present application provides a self-cleaning roller brush and a cleaning robot, which can clean entangled objects such as hair on the roller brush without docking with the base, which helps to reduce the docking accuracy requirements between the cleaning robot and the base.

[0043] Specifically, refer to the attached Figure 1 and Figure 2 As shown, an embodiment of the present application provides a cleaning robot, which may include a self-cleaning roller brush 1 and a robot body 2, wherein the self-cleaning roller brush 1 is mounted on the robot body 2 to clean the floor. It is understood that the cleaning robot of the present application may also be implemented as a sweeper or a scrubber, but is not limited to being implemented as a sweeper or a scrubber; in addition, as Figure 1 and Figure 2 As shown, the cleaning robot of the present application may also include, but is not limited to, a base 3 capable of docking with the self-cleaning roller brush 1 and / or the robot body 2 for realizing charging and endurance functions or other functions, which will not be elaborated in this application.

[0044] More specifically, if Figures 3 to 9 As shown, the self-cleaning roller brush 1 may include a roller brush base 10 connected to the robot body 2, a roller brush body 20 rotatably arranged on the roller brush base 10, and a cutting mechanism 30; the cutting mechanism 30 includes a moving base 31 movably arranged on the roller brush base 10, a cutting knife assembly 32 movably arranged on the moving base 31, a state driving mechanism 33 drivingly connected to the moving base 31, and a cutting drive mechanism 34 drivingly connected to the cutting knife assembly 32; the moving base 31 can be driven by the state driving mechanism 33 to move relative to the roller brush base 10 to drive the cutting knife assembly 32 to approach or move away from the roller brush body 20; the cutting knife assembly 32 can be driven by the cutting drive mechanism 34 to move relative to the roller brush body 20 for cutting windings wound around the roller brush body 20.

[0045] In this way, when the cleaning robot performs floor cleaning operations, the state driving mechanism 33 can drive the motion base 31 to move relative to the roller brush base 10 to drive the cutting knife assembly 32 away from the roller brush body 20, thereby preventing the cutting knife assembly 32 from interfering with the rolling of the roller brush body 20, thereby ensuring that the cleaning robot performs floor cleaning operations normally. When hair and other entanglements are entangled on the roller brush body 20, resulting in a poor floor cleaning effect, the state driving mechanism 33 can drive the motion base 31 to move relative to the roller brush base 10 to drive the cutting knife assembly 32 to approach the roller brush body 20; at this time, the cutting driving mechanism 34 can drive the cutting knife assembly 32 to move relative to the roller brush body 20 to cut the entanglements wrapped around the roller brush body 20; after completing the cutting of the entanglements, the state driving mechanism 33 can drive the motion base 31 to move relative to the roller brush base 10 to drive the cutting knife assembly 32 away from the roller brush body 20; thereafter, as the roller brush body 20 continues to rotate, the cut entanglements will detach from the roller brush body 20 and be sucked away by the robot body 2, thereby realizing self-cleaning of the roller brush, avoiding manual cleaning, and facilitating improving user experience.

[0046] It is worth noting that since the self-cleaning roller brush 1 of the present application is itself equipped with a cutting mechanism 30, instead of assembling the hair cleaning mechanism on the base station as in the prior art, the cleaning robot of the present application does not need to dock the self-cleaning roller brush 1 with the base 3, and can use the cutting mechanism 30 to cut the entangled materials wrapped around the roller brush body 20 as needed, which not only can promptly clean the roller brush from entangled materials such as hair, but also helps to reduce the docking accuracy requirements between the cleaning robot and the base.

[0047] For example, Figures 5 to 9 As shown, the moving base 31 can be radially slidably arranged on the roller brush base 10; the cutting knife assembly 32 can be axially slidably arranged on the moving base 31. In this way, the moving base 31 slides along the radial direction of the roller brush body 20 relative to the roller brush base 10 under the drive of the state driving mechanism 33, so as to drive the cutting knife assembly 32 to quickly approach or move away from the roller brush body 20; the cutting knife assembly 32 slides along the axial direction of the roller brush body 20 relative to the moving base 31 under the drive of the cutting driving mechanism 34, so as to better cut the windings wound on the roller brush body 20.

[0048] Alternatively, if Figure 4 , Figure 6 as well as Fig. 9As shown, the state driving mechanism 33 may include a state driving motor 331 installed on the roller brush base 10 and a state driving gear 332 connected to the output shaft of the state driving motor 331; the motion base 31 includes a motion rack 311 meshed with the state driving gear 332 and a sliding seat 312 fixedly connected to the motion rack 311. In this way, when the state driving motor 331 drives the state driving gear 332 to rotate forward or reverse, the state driving gear 332 and the motion rack 311 cooperate with each other to convert the rotational force into a linear force, thereby driving the sliding seat 312 to slide radially, so as to drive the cutting knife assembly 32 to approach or move away from the roller brush body 20.

[0049] Alternatively, if Figure 4 , Figure 6 as well as Fig. 9 As shown, the cutting drive mechanism 34 may include a cutting drive motor 341 mounted on the sliding seat 312 and a cutting drive gear 342 connected to the output shaft of the cutting drive motor 341; the cutting blade assembly 32 includes a rack bracket 321 meshed with the cutting drive gear 342 and a cutting blade body 322 fixedly connected to the rack bracket 321, and the cutting blade body 322 extends from the rack bracket 321 toward the roller brush body 20. In this way, when the cutting drive motor 341 drives the cutting drive gear 342 to rotate forward or reversely, the cutting drive gear 342 and the rack bracket 321 cooperate with each other to convert the rotational force into a linear force, thereby driving the cutting blade body 322 to slide back and forth axially to cut the windings wound on the roller brush body 20.

[0050] It is worth noting that Figure 4 , Figure 6 as well as Fig. 9 As shown, in order to prevent the cutting blade body 322 from damaging the roller brush body 20 when cutting the windings, the roller brush body 20 of the present application has an axially extending strip cutting opening 200. In this way, since the windings will be wound on the roller brush body 20 along the circumferential direction of the roller brush body 20, a part of the windings will correspond to the strip cutting opening 200. Therefore, when the moving base 31 drives the cutting blade assembly 32 to slide radially to approach the roller brush body 20 under the drive of the state driving mechanism 33, the cutting blade assembly 32 can extend into the strip cutting opening 200 to abut against the windings; thereafter, the cutting blade assembly 32 will reciprocate along the extension direction of the strip cutting opening 200 under the drive of the cutting driving mechanism 34, so as to cut the windings wound on the roller brush body 20 without cutting the roller brush body 20.

[0051] In addition, if Figures 4 to 9As shown, the self-cleaning roller brush 1 of the present application may further include a position monitoring component 40, which includes a rotation position monitoring mechanism 41 and a sliding position monitoring mechanism 42; the rotation position monitoring mechanism 41 is arranged between the roller brush base 10 and the roller brush body 20, and is used to monitor the rotation position of the roller brush body 20; the sliding position monitoring mechanism 42 is arranged between the roller brush base 10 and the cutting mechanism 30, and is used to monitor the movement position of the cutting knife assembly 32, so as to safely and smoothly perform the self-cleaning operation of the roller brush.

[0052] For example, Figure 4 and Figure 8 As shown, the rotation position monitoring mechanism 41 may include a rotation position sensor 411 arranged on the roller brush base 10 and a rotation position positioning member 412 matching the rotation position sensor 411, and the rotation position positioning member 412 is arranged on the roller brush body 20 at a position corresponding to the strip cutting opening 200, so that when the rotation position sensor 411 senses the rotation position positioning member 412, the cutting knife assembly 32 of the cutting mechanism 30 is aligned with the strip cutting opening 200 of the roller brush body 20.

[0053] Optionally, the rotational position sensor 411 may be, but is not limited to, implemented as a circuit board with a Hall sensor mounted thereon, namely, a Hall circuit board; the rotational position positioning member 412 may be correspondingly implemented as a magnet that can be sensed by the Hall circuit board within a certain distance range.

[0054] Alternatively, if Figure 3 , Figure 4 as well as Figure 8 As shown, the roller brush base 10 may include a roller brush top cover 11, a pair of roller brush end covers 12 connected to the roller brush top cover 11, and a roller brush driving mechanism 13 drivingly connected to the roller brush body 20; the axial ends of the roller brush body 20 are rotatably connected to the roller brush end covers 12, so that the roller brush body 20 rotates relative to the roller brush end covers 12 under the drive of the roller brush driving mechanism 13. At this time, Figure 7 and Figure 8 As shown, the rotation position sensor 411 is installed on the roller brush end cover 12, and the rotation position positioning member 412 is installed on the roller brush body 20 adjacent to the end of the rotation position sensor 411, so as to ensure that the rotation position sensor 411 can sense the rotation position positioning member 412 while avoiding the rotation position positioning member 412 from affecting the cleaning effect of the roller brush body 20.

[0055] Similarly, if Figure 4 , Figure 6 as well as Fig. 9As shown, the sliding position monitoring mechanism 42 may include a first sliding position sensor 421 disposed on the roller brush base 10, a first sliding position positioning member 422 matched with the first sliding position sensor 421, a second sliding position sensor 423 disposed on the roller brush base 10, and a second sliding position positioning member 424 matched with the second sliding position sensor 423; the first sliding position positioning member 422 is disposed at a position corresponding to an initial state on the motion base 31, so as to sense the first sliding position sensor 421 when the first sliding position sensor 421 is in motion. When the second sliding position sensor 423 senses the second sliding position sensor 424, the state driving mechanism 33 stops driving to put the moving base 31 in the initial state, and the cutting knife assembly 32 is located away from the roller brush body 20. The second sliding position sensor 423 senses the second sliding position sensor 424, and the state driving mechanism 33 stops driving to put the moving base 31 in the cutting state, and the cutting knife assembly 32 is located close to the roller brush body 20.

[0056] In other words, the first sliding position sensor 421 and the first sliding position positioning member 422 cooperate with each other to monitor the extreme position of the cutting knife assembly 32 away from the roller brush body 20 along the radial direction of the roller brush body 20, that is, to monitor whether the movable base 31 is located at the initial position away from the roller brush body 20; the second sliding position sensor 423 and the second sliding position positioning member 424 cooperate with each other to monitor the extreme position of the cutting knife assembly 32 close to the roller brush body 20 along the radial direction of the roller brush body 20, that is, to monitor whether the movable base 31 is located at the cutting position close to the roller brush body 20.

[0057] Alternatively, if Figure 4 , Figure 6 as well as Fig. 9 As shown, the sliding position monitoring mechanism 42 may further include a pair of third sliding position sensors 425 respectively arranged on the motion base 31 and a pair of third sliding position positioning members 426 respectively matched with the third sliding position sensors 425, and the two third sliding position positioning members 426 are respectively arranged on the cutting knife assembly 32 at positions corresponding to the axial ends of the strip cutting opening 200, so that when the third sliding position sensor 425 senses the corresponding third sliding position positioning member 426, the cutting drive mechanism 34 switches the driving direction to make the cutting knife assembly 32 slide back and forth between the axial ends of the strip cutting opening 200.

[0058] In other words, the two third sliding position sensors 425 and the two third sliding position positioning members 426 cooperate with each other to monitor the limit position of the reciprocating sliding of the cutting knife assembly 32 along the axial direction of the roller brush body 20, that is, to monitor the limit position of the reciprocating sliding of the cutting knife body 322 in the strip cutting opening 200, so that the cutting knife assembly 32 slides reciprocatingly between the two axial ends of the strip cutting opening 200, thereby preventing the cutting knife body 322 from excessive axial reciprocating sliding and damaging the roller brush body 20.

[0059] Optionally, two of the third sliding position positioning members 426 are installed at the two axial ends of the rack bracket 321; the two of the third sliding position sensors 425 are arranged at intervals on the motion base 31 to correspond to the two axial ends of the strip cutting opening 200 respectively, so as to ensure that the cutting knife assembly 32 slides back and forth between the two axial ends of the strip cutting opening 200.

[0060] Alternatively, if Figure 4 , Figure 6 as well as Fig. 9 As shown, the sliding position monitoring mechanism 42 may further include a fourth sliding position sensor 427 matching the third sliding position positioning member 426, and the fourth sliding position sensor 427 is arranged on the motion base 31 between the two third sliding position sensors 425, so that when the fourth sliding position sensor 427 senses the third sliding position positioning member 426, the cutting drive mechanism 34 can stop driving, so that the cutting knife assembly 32 stops in the middle part of the strip cutting opening 200, preventing the cutting knife assembly 32 from damaging the roller brush body 20 when inserted into or away from the strip cutting opening 200.

[0061] In other words, the fourth sliding position sensor 427 can be set at a position on the moving base 31 corresponding to the middle of the strip-shaped cutting opening 200, so that the cutting knife assembly 32 can stop at the middle of the strip-shaped cutting opening 200 after cutting is completed.

[0062] It can be understood that the first sliding position sensor 421, the second sliding position sensor 423, the third sliding position sensor 425 and the fourth sliding position sensor 427 mentioned in the present application can be implemented as but not limited to Hall circuit boards; the first sliding position positioning member 422, the second sliding position positioning member 424 and the third sliding position positioning member 426 can be correspondingly implemented as magnets that can be sensed by the Hall circuit board within a certain distance range.

[0063] It is worth noting that Figure 5As shown, the self-cleaning roller brush 1 of the present application may further include a control circuit board 50, and the control circuit board 50 is communicatively connected to the roller brush drive mechanism 13, the state drive mechanism 33, the cutting drive mechanism 34 and the position monitoring component 40, so as to realize automatic cleaning of the self-cleaning roller brush 1. In addition, the self-cleaning roller brush 1 in the cleaning robot of the present application can not only cut the entangled material in time during the cleaning process, but also cut the entangled material during the process of docking with the base 3 for self-cleaning.

[0064] Exemplarily, when the self-cleaning roller brush 1 is placed on the base 3 for self-cleaning, the control circuit board 50 controls the roller brush driving mechanism 13 to operate to drive the roller brush body 20 to rotate to a specified position, and the specified position is determined by mutual induction between a rotation position sensor 411 fixed on the roller brush end cover 12 and a rotation position positioning member 412 fixed on the roller brush body 20, so that the cutting blade body 322 of the cutting blade assembly 32 is aligned with the strip cutting opening 200 of the roller brush body 20.

[0065] When the rotation position sensor 411 senses the rotation position positioning member 412, the control circuit board 50 will send a signal to control the state driving mechanism 33 to work, so as to drive the moving base 31 to slide radially through a gear rack transmission to drive the cutting knife assembly 32 to approach the roller brush body 20, and stop working when the second sliding position sensor 423 senses the second sliding position positioning member 424, so that the cutting knife body 322 of the cutting knife assembly 32 extends into the strip cutting opening 200; at this time, the control circuit board 50 will send a signal to control the cutting driving mechanism 34 to work, so as to drive the cutting knife assembly 32 to slide axially back and forth through a gear rack transmission, so that the cutting knife body 322 slides back and forth in the strip cutting opening 200; wherein the switching of the axial reciprocating sliding direction is achieved by respectively sensing two third sliding position sensors 425 and two third sliding position positioning members 426 to generate two extreme position signals.

[0066] After the cutting action (which can be preset or adaptively adjusted according to the winding situation of the wound object) is completed, the control circuit board 50 will send a signal to control the operation of the cutting drive mechanism 34 to make the cutting knife assembly 32 return to the initial cutting position. The initial cutting position can be determined by the mutual induction of the fourth sliding position sensor 427 and the third sliding position positioning member 426, so that the cutting knife body 322 of the cutting knife assembly 32 returns to the middle part of the strip cutting opening 200 after cutting is completed.

[0067] When the fourth sliding position sensor 427 senses the third sliding position positioning member 426, the control circuit board 50 will control the state driving mechanism 33 to work again, so as to drive the moving base 31 to slide radially through a gear rack transmission to drive the cutting knife assembly 32 away from the roller brush body 20, and stop working when the first sliding position sensor 421 senses the first sliding position positioning member 422, so that the cutting knife body 322 of the cutting knife assembly 32 is located at the initial position away from the strip cutting opening 200; at this time, the control circuit board 50 can control the robot body 2 to issue a prompt that the cutting is completed, and control the cleaning robot to start self-cleaning.

[0068] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. Self-cleaning roller brush, characterized in that: include: Roller brush base; A roller brush body, the roller brush body being rotatably disposed on the roller brush base; as well as A cutting mechanism, the cutting mechanism comprising a moving base movably arranged on the roller brush base, a cutting knife assembly movably arranged on the moving base, a state driving mechanism drivingly connected to the moving base, and a cutting driving mechanism drivingly connected to the cutting knife assembly; the moving base can be driven by the state driving mechanism to move relative to the roller brush base to drive the cutting knife assembly to approach or move away from the roller brush body; the cutting knife assembly can be driven by the cutting driving mechanism to move relative to the roller brush body for cutting the windings wound on the roller brush body.

2. The self-cleaning roller brush according to claim 1, characterized in that: The moving base can be radially slidably arranged on the roller brush base; the cutting knife assembly can be axially slidably arranged on the moving base.

3. The self-cleaning roller brush according to claim 2, characterized in that: The state driving mechanism includes a state driving motor installed on the roller brush base and a state driving gear connected to the output shaft of the state driving motor; the motion base includes a motion rack connected to the inner core of the state driving gear and a sliding seat fixedly connected to the motion rack.

4. The self-cleaning roller brush according to claim 3, characterized in that: The cutting drive mechanism includes a cutting drive motor installed on the sliding seat and a cutting drive gear connected to the output shaft of the cutting drive motor; the cutting knife assembly includes a rack bracket meshed with the cutting drive gear and a cutting knife body fixedly connected to the rack bracket, and the cutting knife body extends from the rack bracket toward the roller brush body.

5. The self-cleaning roller brush according to any one of claims 1 to 4, characterized in that: The roller brush body has a strip-shaped cutting opening extending axially.

6. The self-cleaning roller brush according to claim 5, characterized in that: The self-cleaning roller brush further includes a position monitoring component, which includes a rotation position monitoring mechanism and a sliding position monitoring mechanism; the rotation position monitoring mechanism is arranged between the roller brush base and the roller brush body, and is used to monitor the rotation position of the roller brush body; the sliding position monitoring mechanism is arranged between the roller brush base and the cutting mechanism, and is used to monitor the movement position of the cutting knife assembly.

7. The self-cleaning roller brush according to claim 6, characterized in that: The rotation position monitoring mechanism includes a rotation position sensor arranged on the roller brush base and a rotation position positioning member matching the rotation position sensor. The rotation position positioning member is arranged at a position on the roller brush body corresponding to the strip-shaped cutting opening, so that when the rotation position sensor senses the rotation position positioning member, the cutting knife assembly is aligned with the strip-shaped cutting opening of the roller brush body.

8. The self-cleaning roller brush according to claim 7, characterized in that: The roller brush base includes a roller brush top cover, a pair of roller brush end covers connected to the roller brush top cover, and a roller brush driving mechanism driven by the roller brush body, and the axial ends of the roller brush body are rotatably connected to the roller brush end covers respectively; the rotation position sensor is installed on the roller brush end covers, and the rotation position positioning piece is installed on the end of the roller brush body adjacent to the rotation position sensor.

9. The self-cleaning roller brush according to claim 7, characterized in that: The sliding position monitoring mechanism includes a first sliding position sensor arranged on the roller brush base, a first sliding position positioning member matching the first sliding position sensor, a second sliding position sensor arranged on the roller brush base, and a second sliding position positioning member matching the second sliding position sensor; the first sliding position positioning member is arranged at a position on the moving base corresponding to an initial state, and the second sliding position positioning member is arranged at a position on the moving base corresponding to a cutting state.

10. The self-cleaning roller brush according to claim 9, characterized in that: The sliding position monitoring mechanism further includes a pair of third sliding position sensors respectively arranged on the moving base frame and a pair of third sliding position positioning members respectively corresponding to the third sliding position sensors; the two third sliding position positioning members are respectively arranged on the cutting knife assembly at positions corresponding to the two axial ends of the strip cutting opening.

11. The self-cleaning roller brush according to claim 10, characterized in that: The sliding position monitoring mechanism further includes a fourth sliding position sensor matched with the third sliding position positioning member, and the fourth sliding position sensor is arranged on the motion base between the two third sliding position sensors to correspond to the middle part of the strip cutting opening.

12. The self-cleaning roller brush according to claim 11, characterized in that: The rotational position sensor, the first sliding position sensor, the second sliding position sensor, the third sliding position sensor and the fourth sliding position sensor are all Hall circuit boards; the rotational position positioning member, the first sliding position positioning member, the second sliding position positioning member and the third sliding position positioning member are all magnets that can be sensed by the Hall circuit board.

13. A cleaning robot, characterized in that: include: Robot body; and The self-cleaning roller brush according to any one of claims 1 to 12, wherein the self-cleaning roller brush is mounted on the robot body.

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