Rolling brush device, cleaning robot and cleaning system

Abstract

The utility model discloses a rolling brush device, a cleaning robot and a cleaning system.The rolling brush device comprises a rolling brush cavity, a rolling brush and a vibration detection device; the rolling brush cavity is provided with a rolling brush containing cavity and a dust suction opening communicated with the rolling brush containing cavity, and an opening is formed in the side, facing the to-be-cleaned area, of the rolling brush containing cavity. The rolling brush is rotationally arranged in the rolling brush containing cavity, and garbage enters the rolling brush containing cavity from the opening in the process that the cleaning robot executes a cleaning task; the vibration detection device is arranged on the outer wall of the rolling brush cavity and used for detecting vibration generated when garbage impacts the rolling brush cavity. According to the technical scheme, the cleaning effect and the cleaning efficiency of the cleaning robot are effectively improved, meanwhile, damage to the cleaning robot or working parts of the cleaning robot is relieved, and the service life of the cleaning robot or the working parts of the cleaning robot is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, and particularly relates to a roller brush device, a cleaning robot and a cleaning system. Background Art

[0002] With the development of smart home, floor sweeping robots have been widely used in families and become little helpers for household cleaning. At present, since floor sweeping robots do not have an effective solution to detect the dirt condition of the cleaning area, they cannot dynamically adjust the cleaning strategy according to the dirt condition of the cleaning area. Therefore, existing floor sweeping robots usually carry out cleaning work with a fixed cleaning strategy, resulting in poor cleaning effect or cleaning efficiency for the cleaning area. Summary of the Utility Model

[0003] The present disclosure provides a roller brush device, a cleaning robot and a cleaning system, aiming to improve the cleaning effect and cleaning efficiency of the cleaning robot.

[0004] To achieve the above object, the roller brush device proposed by the present disclosure is applied to a cleaning robot. During the process of the cleaning robot performing a cleaning task, the roller brush device is used to sweep the garbage on the area to be cleaned and detect the vibration caused by the garbage. The roller brush device includes:

[0005] A roller brush cavity having a roller brush receiving cavity and a dust suction port communicating with the roller brush receiving cavity. An opening is provided on one side of the roller brush receiving cavity facing the area to be cleaned.

[0006] A roller brush rotatably disposed in the roller brush receiving cavity. During the process of the cleaning robot performing the cleaning task, the garbage enters the roller brush receiving cavity from the opening.

[0007] A vibration detection device is disposed on the outer wall of the roller brush cavity for detecting the vibration generated by the garbage hitting the roller brush cavity.

[0008] In some embodiments, the dust suction port is disposed at one end of the roller brush cavity, and / or, the vibration detection device is disposed adjacent to the dust suction port.

[0009] In some embodiments, a groove is provided on the outer wall of the roller brush cavity. The vibration detection device includes a piezoelectric ceramic sheet, and the piezoelectric ceramic sheet covers the notch of the groove to enclose a first cavity with the groove.

[0010] In some embodiments, the vibration detection device further includes a pressing block. One end of the pressing block abuts against the edge of the side of the piezoelectric ceramic sheet facing away from the groove, and the pressing block and the side of the piezoelectric ceramic sheet facing away from the groove enclose a second cavity.

[0011] In some embodiments, an installation cylinder is provided on the outer wall of the roller brush cavity and is arranged around the groove, the pressing block is arranged in the installation cylinder, and the pressing block is in sliding fit with the installation cylinder along the axial direction of the installation cylinder.

[0012] In some embodiments, the vibration detection device further includes an elastic component, the elastic component is connected to the pressing block, and applies a force towards the piezoelectric ceramic sheet to the pressing block.

[0013] In some embodiments, the elastic component includes an end cover and an elastic member, the end cover is fixedly connected to the installation cylinder and seals the port of the installation cylinder; the elastic member is connected to the side of the end cover facing the installation cylinder and elastically abuts against the pressing block.

[0014] In some embodiments, the vibration detection device further includes a sealing member arranged around the port of the installation cylinder, and the sealing member is arranged between the end cover and the port of the installation cylinder.

[0015] In some embodiments, a circumferential rib for abutting against the port is provided at the portion of the sealing member in contact with the port of the installation cylinder; and / or,

[0016] The sealing member is sleeved outside the port of the installation cylinder and / or pressed on the port of the installation cylinder.

[0017] In some embodiments, a circumferential limiting structure is provided between the inner wall of the installation cylinder and the pressing block to limit the circumferential movement of the pressing block relative to the installation cylinder;

[0018] Wherein, the circumferential limiting structure includes a limiting strip and a limiting groove, and one of the inner wall of the installation cylinder and the outer wall of the pressing block is provided with the limiting strip and the other is provided with the limiting groove.

[0019] In some embodiments, a first notch communicating with the second cavity is provided on the side wall of the pressing block, a second notch corresponding to the position of the first notch is provided on the side wall of the installation cylinder, and the wire harness of the piezoelectric ceramic sheet is led out of the installation cylinder through the first notch and the second notch.

[0020] In some embodiments, a dispensing groove for docking with the second notch is provided on the roller brush cavity, and the periphery of the wire harness at the second notch is sealed by dispensing; and / or,

[0021] The vibration detection device further includes a sealing member, the second notch extends along the axial direction of the installation cylinder to the port and / or the bottom of the installation cylinder, and the sealing member is provided with a sealing portion matching with the second notch, and the sealing portion is hermetically inserted into the second notch.

[0022] The present disclosure also provides a cleaning robot, including:

[0023] A main body;

[0024] A suction device disposed in the main body, the suction device communicating with the dust suction port, and the suction device evacuating air to form a negative pressure in the roller brush accommodating cavity to draw the garbage to the dust suction port; and

[0025] The above-mentioned roller brush device, the roller brush device being disposed in the main body.

[0026] The present disclosure also provides a cleaning system, including a base station and the above-mentioned cleaning robot, and the cleaning robot is maintained in the base station.

[0027] In the technical solution of the roller brush device provided by the present disclosure, a vibration detection device is disposed on the outer wall of the roller brush cavity. When the cleaning robot performs cleaning work, it is used to detect the vibration generated by the impact of the roller brush cavity by garbage; since when the garbage moves towards the dust suction port, it will strike or collide with the roller brush cavity, causing the roller brush cavity to vibrate. Therefore, based on the vibration situation detected by the vibration detection device, the quantity (or distribution density) and mass (or volume or size) of the garbage currently hitting or colliding with the roller brush cavity can be judged, and then the degree of dirt or dirt situation of the current cleaning area can be determined, so as to adjust the working components of the cleaning robot to an appropriate working power or adjust to an appropriate cleaning mode for work, effectively improving the cleaning effect or cleaning efficiency of the cleaning robot. At the same time, the damage to the cleaning robot or its working components is reduced, and the service life of the cleaning robot or its working components is extended. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of a roller brush device from one perspective in an embodiment of the present invention;

[0029] Figure 2 is a schematic structural diagram of the roller brush device from another perspective in an embodiment of the present invention;

[0030] Figure 3 is a schematic structural diagram of a roller brush cavity in an embodiment of the present invention;

[0031] Figure 3a is Figure 3 an enlarged schematic diagram of position A in

[0032] Figure 4 is a schematic structural diagram of a roller brush device in an embodiment of the present invention;

[0033] Figure 4a is Figure 4 a sectional schematic diagram taken along the direction B-B in

[0034] Figure 4b For Figure 4a The enlarged schematic diagram of position C in

[0035] Figure 5 The structural schematic diagram of the vibration detection device in an embodiment of the present utility model;

[0036] Figure 6 The structural schematic diagram of the seal in an embodiment of the present utility model;

[0037] Figure 7 The structural schematic diagram of the roller brush device in an embodiment of the present utility model. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0041] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0042] The present disclosure provides a roller brush device, which is applied to a cleaning robot (or other cleaning equipment). During the cleaning task execution of the cleaning robot, the roller brush device is used to sweep the garbage on the area to be cleaned and detect the vibration caused by the garbage.

[0043] Referring to Figure 1 , Figure 2 and Figure 7 , in this embodiment, the roller brush device includes a roller brush cavity 10, a roller brush 200, and a vibration detection device 20. Among them, the roller brush cavity 10 has a roller brush accommodation cavity 11 and a dust suction port 12 communicating with the roller brush accommodation cavity 11. The dust suction port 12 is used to communicate with the suction device (such as a blower) of the cleaning robot. An opening is provided on one side of the roller brush accommodation cavity 11 facing the area to be cleaned; the roller brush 200 is rotatably arranged in the roller brush accommodation cavity 11. The vibration detection device 20 is arranged on the outer wall of the roller brush cavity 10 and is used to detect the vibration generated by the impact of the garbage on the roller brush cavity 10; when the cleaning robot equipped with the roller brush device of this embodiment is performing cleaning work, the garbage enters the roller brush accommodation cavity 11 through the opening, and the particulate matter (such as dust, sand grains, beans, etc.) therein will impact the inner wall of the roller brush accommodation cavity 11, causing the roller brush cavity 10 to generate corresponding vibrations. Since the degree of dirt or the dirt condition of the current cleaning area is different, that is, the distribution density (or quantity) or size (or volume or mass) of the particulate matter is different, the vibration condition of the roller brush cavity 10 caused by the impact of the particulate matter is different. Therefore, by detecting the vibration condition of the roller brush cavity 10 by the vibration detection device 20, detailed data reflecting the distribution density and size of the particulate matter (such as the information of the vibration signal) can be obtained, and the distribution density and size condition of the particulate matter (i.e., the degree of dirt or the dirt condition) of the current cleaning area can be obtained. For example, the more, larger, or heavier the particulate matter is, the greater the impact force on the roller brush cavity 10 and the greater the resulting vibration.

[0044] Among them, the vibration detection device 20 can be a detection device based on the piezoelectric sensing principle (such as a piezoelectric ceramic sheet), or a detection device based on the optoelectronic sensing principle, or a detection device based on the sound sensing principle, or other types or principles of detection devices.

[0045] The technical solution of the roller brush device in this embodiment is to set a vibration detection device 20 on the outer wall of the roller brush cavity 10 to detect the vibration generated when the cleaning robot is cleaning and the garbage impacts the roller brush cavity 10. Since when the garbage on the area to be cleaned moves towards the dust suction port 12 under the action of the suction device, the particulate matter in the garbage will strike and collide with the inner wall of the roller brush accommodating cavity 11, causing the roller brush cavity 10 to vibrate. Therefore, the cleaning robot can judge the distribution density and size of the particulate matter hitting the roller brush cavity 10 based on the vibration situation detected by the vibration detection device 20, that is, know the dirt situation of the current cleaning area, and then adjust the cleaning robot to the corresponding appropriate cleaning strategy (for example, the appropriate power of the working components or the appropriate cleaning mode) for cleaning, realizing that the cleaning robot dynamically and flexibly adjusts the cleaning strategy according to the dirt situation of the cleaning area. Exemplarily, the cleaning robot adjusts its cleaning mode or the working power of the working components according to the detected distribution density and size of the particulate matter. For example, when detecting larger particulate matter, the side brush can be controlled to reduce speed or stop rotating to prevent the large particulate matter from being blown away, thereby improving the cleaning effect or cleaning efficiency, or preventing damage to the side brush by the large particulate matter; and / or, the roller brush 200 can also be controlled to reduce speed or stop rotating to prevent damage to the rubber strip of the roller brush 200, thereby reducing the damage to the cleaning robot or its working components; and / or, the traveling speed of the cleaning robot can also be controlled to slow down, and / or, the fan speed of the cleaning robot can also be controlled to increase, thereby improving the cleaning effect or cleaning efficiency.

[0046] In addition, since the space outside the roller brush accommodating cavity 11 is relatively larger than the inner space, the roller brush device in this embodiment sets the vibration detection device 20 on the outer wall of the roller brush cavity 10, so that the vibration detection device 20 will not affect the operation of the roller brush 200, and the degree of freedom of the installation position of the vibration detection device 20 is higher and the disassembly and assembly are more convenient; moreover, if the vibration detection device 20 is installed in the roller brush accommodating cavity 11, it will be affected by the garbage, affecting its service life. The solution in this embodiment sets the vibration detection device 20 on the outer wall of the roller brush cavity 10, which can effectively avoid the direct contact between the garbage and the vibration detection device 20 and extend the service life of the vibration detection device 20.

[0047] Refer to Figure 1 and Figure 2, in some embodiments, the vibration detection device 20 is disposed adjacent to the dust suction port 12, that is, the vibration detection device 20 is disposed at a position near the dust suction port 12. For example, the dust suction port 12 is disposed at one end of the roller brush cavity 10, and the vibration detection device 20 is disposed at one end of the roller brush cavity 10 close to the dust suction port 12. Disposing the dust suction port 12 at one end of the roller brush cavity enables the garbage in the roller brush accommodating cavity 11 to move centrally toward one end of the roller brush cavity (i.e., the end where the dust suction port 12 is located). The vibration detection device 20 is disposed adjacent to the dust suction port 12, and the detection result is more accurate and the detection effect is better. Compared with the case where the dust suction port 12 is disposed in the middle of the roller brush cavity 10, even if the vibration detection device 20 is disposed adjacent to the dust suction port 12, its detection effect is relatively poor, because the garbage moves from both sides of the roller brush accommodating cavity toward the dust suction port 12 in the middle, and the vibration detection device 20 is far from the other side of its installation side, and the detection effect on the garbage entering the dust suction port 12 from this side is also relatively poor.

[0048] Since all the garbage is sucked into the dust box from the dust suction port 12 when the cleaning robot is cleaning, all the particulate matters will pass through the dust suction port 12, and the vibration at the position near the dust suction port 12 will be stronger and more obvious. In this embodiment, by disposing the vibration detection device 20 adjacent to the dust suction port 12, the vibration condition generated by the garbage hitting the roller brush cavity 10 can be detected more accurately, that is, the actual situation of the garbage in the current cleaning area can be obtained more accurately, and then the corresponding cleaning strategy can be adjusted more accurately to improve the cleaning effect and cleaning efficiency, and at the same time reduce the damage to the cleaning robot and its working components.

[0049] Of course, in some other embodiments, the vibration detection device 20 may not be disposed at a position near the dust suction port 12, but compared with the case where the vibration detection device 20 is disposed near the dust suction port 12, the accuracy of the detection result of the garbage will be reduced.

[0050] Refer to Figure 3 、 Figure 3a and Figure 4b, in some embodiments, a groove 13 is provided on the outer wall of the roller brush cavity 10. The vibration detection device 20 includes a piezoelectric ceramic sheet 21, and the piezoelectric ceramic sheet 21 covers the notch of the groove 13 to enclose a first cavity Q1 with the groove 13. Piezoelectric ceramics are a kind of functional ceramic material that can convert mechanical energy and electrical energy into each other; the principle of the piezoelectric ceramic sheet 21 is: when pressure (such as vibration stimulation) is applied to the piezoelectric ceramic sheet 21, opposite-polarity charges will be generated at both ends of the piezoelectric ceramic sheet 21, and then become current through a circuit, that is, the piezoelectric effect. The detection principle of the vibration detection device 20 in this embodiment is: when the roller brush cavity 10 is vibrated by the impact of particulate matter, the vibration of the roller brush cavity 10 will cause a corresponding change in the air pressure in the first cavity Q1, so that the pressure exerted on the piezoelectric ceramic sheet 21 by the air pressure in the first cavity Q1 changes, and the piezoelectric ceramic sheet 21 generates a corresponding electrical signal. According to the electrical signal fed back by the piezoelectric ceramic sheet 21, the vibration situation generated by the impact of particulate matter on the roller brush cavity 10 is determined, that is, the details of the particulate matter in the garbage in the current cleaning area (that is, the dirt situation) are determined.

[0051] In some embodiments, the piezoelectric ceramic sheet 21 can be attached to the periphery of the notch of the groove 13, and a component is pressed on the piezoelectric ceramic sheet 21 to keep the piezoelectric ceramic sheet 21 covering the notch of the groove 13 to achieve the sealing of the first cavity Q1. In some other embodiments, the piezoelectric ceramic sheet 21 can also be adhesively sealed to the periphery of the notch of the groove 13 to achieve the sealing of the first cavity Q1. Of course, in other embodiments, other methods can also be used for the sealing cooperation between the piezoelectric ceramic sheet 21 and the groove 13.

[0052] Refer to Figures 4 to 4b , and Figure 5 , in some embodiments, the vibration detection device 20 further includes a pressing block 22 installed on the roller brush cavity 10. One end of the pressing block 22 abuts against the edge of the side of the piezoelectric ceramic sheet 21 facing away from the groove 13, and the pressing block 22 and the side of the piezoelectric ceramic sheet 21 facing away from the groove 13 enclose a second cavity Q2. Among them, the pressing block 22 can be installed on the roller brush cavity 10 through a connecting piece or a mounting component, or can be directly fixed on the roller brush cavity 10; for example, the pressing block 22 is locked on the roller brush cavity 10 by screws, or the pressing block 22 is clamped on the roller brush cavity 10 through a snap structure, or the pressing block 22 is pressed against the piezoelectric ceramic sheet 21 by limiting and pressing through a component, or is adhesively fixed on the roller brush cavity 10. Among them, the second cavity Q2 can be formed by enclosing a groove provided at one end of the pressing block 22 facing the piezoelectric ceramic sheet 21 and the piezoelectric ceramic sheet 21, or the second cavity Q2 can also be formed by enclosing a groove provided on the side of the piezoelectric ceramic sheet 21 facing away from the groove 13 and the pressing block 22; it can also be that grooves are provided at both the end of the pressing block 22 facing the piezoelectric ceramic sheet 21 and the side of the piezoelectric ceramic sheet 21 facing away from the groove 13, and the two grooves are joined together to form the second cavity Q2.

[0053] In the solution of this embodiment, by pressing the pressing block 22 against the edge of the side of the piezoelectric ceramic sheet 21 facing away from the groove 13, the piezoelectric ceramic sheet 21 is kept covering the notch of the groove 13, and the stability of the first cavity Q1 is maintained. A second cavity Q2 is formed by enclosing the side of the piezoelectric ceramic sheet 21 facing away from the groove 13 with the pressing block 22. Thus, there are cavities on both the front and back sides of the piezoelectric ceramic sheet 21, and spaces for vibration activities are provided on both sides for the piezoelectric ceramic sheet 21, making the detection of the piezoelectric ceramic sheet 21 more sensitive. Moreover, by forming the second cavity Q2, the air pressure on the side of the piezoelectric ceramic sheet 21 facing away from the groove 13 can be kept stable, which will not affect the detection of the piezoelectric ceramic sheet 21, and the electrical signal generated by the piezoelectric ceramic sheet 21 according to vibration is more accurate. In this way, the detection accuracy of the vibration detection device 20 is ensured.

[0054] Refer to Figure 3a and Figure 4b In some embodiments, as shown in and, an installation cylinder 23 is provided on the outer wall of the roller brush cavity 10 and is arranged around the groove 13, and the pressing block 22 is arranged in the installation cylinder 23. In this embodiment, by arranging the pressing block 22 in the installation cylinder 23, the radial movement of the pressing block 22 is restricted, preventing the pressing block 22 from generating radial offset and causing misalignment with the piezoelectric ceramic sheet 21, and further resulting in air leakage in the first cavity Q1 enclosed by the piezoelectric ceramic sheet 21 and the groove 13, thus ensuring the stability of the first cavity Q1. In this embodiment, the pressing of the pressing block 22 against the piezoelectric ceramic sheet 21 can be achieved by arranging components or assemblies in the installation cylinder 23 to apply a pressure towards the piezoelectric ceramic sheet 21 to the pressing block 22, or by arranging a structure (such as a buckle) in the installation cylinder 23 to fix the pressing block 22, or other methods can be used to fix the pressing block 22. In some embodiments, the pressing block 22 and the installation cylinder 23 are in sliding fit along the axial direction of the installation cylinder 23, which is convenient for the disassembly, assembly and fixation of the pressing block 22. Among them, it can be achieved by arranging a structure in the installation cylinder 23 to hold the pressing block 22, so that the pressing block 22 keeps pressing the piezoelectric ceramic sheet 21, or by assembling other components on the installation cylinder 23 to maintain the position of the pressing block 22 unchanged.

[0055] Refer to Figure 4b and Figure 5, in some embodiments, the vibration detection device 20 further includes an elastic component 24 disposed on the roller brush cavity 10. The elastic component 24 is connected to the pressing block 22 and applies a force towards the piezoelectric ceramic sheet 21 to the pressing block 22. This force can be a thrust or a tensile force. In the solution of this embodiment, the pressing block 22 is slidably disposed in the mounting cylinder 23, and the elastic component 24 applies an elastic force towards the piezoelectric ceramic sheet 21 to the pressing block 22, so that the pressing force of the pressing block 22 on each position of the edge of the piezoelectric ceramic sheet 21 is more balanced and stable, avoiding the large difference in the pressing force received by each position of the edge of the piezoelectric ceramic sheet 21 caused by locking and fixing the pressing block 22, which affects the detection accuracy of the piezoelectric ceramic sheet 21.

[0056] In some embodiments, a circumferential limiting structure (not labeled) is provided between the inner wall of the mounting cylinder 23 and the pressing block 22 to limit the circumferential movement of the pressing block 22 relative to the mounting cylinder 23. Exemplarily, refer to Figure 3a and Figure 5 , the circumferential limiting structure includes a limiting strip 231 provided on the inner wall of the mounting cylinder 23 and a limiting groove 221 provided on the pressing block 22. The setting positions of the limiting strip 231 and the limiting groove 221 can be interchanged; of course, the circumferential limiting structure can also be composed of other types of structures. In the solution of this embodiment, by adding a circumferential limiting structure, the circumferential movement of the pressing block 22 relative to the mounting cylinder 23 is prevented, so as to avoid the circumferential offset of the pressing block 22 relative to the piezoelectric ceramic sheet 21, resulting in changes in the forces on each position of the edge of the piezoelectric ceramic sheet 21, and ensuring the stability of the pressing of the pressing block 22 on the piezoelectric ceramic sheet 21.

[0057] Refer to Figure 3 , Figure 3a , Figure 4 and Figure 5, in some embodiments, a first notch (not shown in the figure) communicating with the second cavity Q2 is provided on the side wall of the briquette 22, and a second notch 232 corresponding to the position of the first notch is provided on the side wall of the mounting cylinder 23. The wire harness 25 of the piezoelectric ceramic sheet 21 is led out of the mounting cylinder 23 through the first notch and the second notch 232. In this embodiment, the piezoelectric ceramic sheet 21 detects the electrical signal generated by the vibration and transmits it in a wired transmission manner, that is, the electrical signal is output through the wire harness 25 to be output to the controller. Of course, in other embodiments, the vibration detection device 20 can also be provided with a wireless communication module to transmit the electrical signal generated by the piezoelectric ceramic sheet 21 detecting the vibration to the controller through the wireless communication module. In the solution of this embodiment, the first notch is provided on the side wall of the briquette 22 for arranging the wire harness 25 of the piezoelectric ceramic sheet 21, that is, the wire harness 25 is arranged on the side of the piezoelectric ceramic sheet 21 facing away from the groove 13, which does not affect the sealing performance of the first cavity Q1 and ensures the detection accuracy of the piezoelectric ceramic sheet 21. In addition, the gap between the first notch and the wire harness 25 is small, and the influence on the air pressure in the second cavity Q2 is very small; and the first notch and / or the second notch 232 can be sealed (such as by dotting glue) to prevent the air pressure in the second cavity Q2 from being affected by the external air pressure.

[0058] Refer to Figure 4b and Figure 5 , in some embodiments, the elastic component 24 includes an end cap 241 and an elastic member 242. The end cap 241 is fixedly connected to the brush roller cavity 10 or the mounting cylinder 23 and covers the port of the mounting cylinder 23. The elastic member 242 is connected to the side of the end cap 241 facing the mounting cylinder 23, and the elastic member 242 elastically abuts against the briquette 22, that is, the elastic member 242 is in a compressed state. Among them, the end cap 241 can be fixedly connected to the brush roller cavity 10 or the mounting cylinder 23 by means of screws or buckles, etc., or can be fixedly connected to the mounting cylinder 23 by means of buckles or other structures. The elastic member 242 can be a compression spring, an elastic buckle, an elastic airbag, etc. In other embodiments, the elastic component 24 can also adopt an elastic member 242 in a stretched state, such as a tension spring, an elastic rope, etc. In this embodiment, the elastic component 24 adopts a scheme composed of the end cap 241 and the elastic member 242. The mounting cylinder 23 is sealed by the end cap 241 to isolate the inside of the mounting cylinder 23 from the outside, realizing dust and water prevention, avoiding dust, water, etc. from affecting the normal functions of the components inside the mounting cylinder 23, and improving the reliability of the vibration detection device 20; and the elastic member 242 is connected between the end cap 241 and the briquette 22 to elastically press the piezoelectric ceramic sheet 21 tightly by the briquette 22, and the structure is simple and convenient.

[0059] Refer to Figure 3a, in some embodiments, a dispensing groove 14 is provided on the roller brush cavity 10 and is docked with the second notch 232, and the periphery of the wire harness 25 at the second notch 232 is sealed by dispensing. By adding the dispensing groove 14 docked with the second notch 232, it is convenient to seal the gap between the second notch 232 and the wire harness 25 by dispensing after the vibration detection device 20 is installed on the roller brush cavity 10; the periphery of the wire harness 25 at the second notch 232 is sealed by dispensing, that is, the gap between the second notch 232 and the wire harness 25 is sealed by glue. In this way, the tightness inside the mounting cylinder 23 is ensured, and dust, water, etc. are effectively prevented from entering the mounting cylinder 23 through the second notch 232.

[0060] Refer to Figure 4b , Figure 5 and Figure 6 , in some embodiments, the vibration detection device 20 further includes a seal 26 disposed around the port of the mounting cylinder 23, and the seal 26 is disposed between the end cap 241 and the port of the mounting cylinder 23. In the solution of this embodiment, by adding the seal 26 around the port of the mounting cylinder 23 between the end cap 241 and the port of the mounting cylinder 23, the tightness between the end cap 241 and the port of the mounting cylinder 23 is improved, the dust and water protection level is improved, and the piezoelectric ceramic sheet 21 is protected by stable sealing.

[0061] In some embodiments, an annular rib 261 abutting the port is provided at the portion where the seal 26 contacts the port of the mounting cylinder 23; by adding the annular rib 261, the annular rib 261 will be clamped between the port of the mounting cylinder 23 and the seal 26 to ensure good contact between the port of the mounting cylinder 23 and the seal 26 and ensure the tightness between the port of the mounting cylinder 23 and the seal 26.

[0062] In some embodiments, the seal 26 is sleeved outside the port of the mounting cylinder 23. In the solution of this embodiment, the seal 26 and the port of the mounting cylinder 23 are sleeved. On the one hand, it is more convenient to install the seal 26 on the port of the mounting cylinder 23, thus facilitating the installation of the end cap 241. On the other hand, it can prevent misalignment between the seal 26 and the port of the mounting cylinder 23 and better ensure the sealing stability between the two. In some embodiments, the seal 26 can also be pressed on the port of the mounting cylinder 23, such as being pressed on the port of the mounting cylinder 23 by the pressing action of the end cap 241. In addition, the seal 26 can also be sleeved on the port of the mounting cylinder 23 and pressed on the port of the mounting cylinder 23. For example, the seal 26 (equivalent to a bottle cap) is designed in a bottle cap shape and buckled on the port of the mounting cylinder 23 (equivalent to a bottle mouth). Of course, in other embodiments, the seal 26 and the port of the mounting cylinder 23 can also adopt other connection methods. For example, an annular groove is provided on the port of the mounting cylinder 23, and a part of the seal 26 is stuck in the annular groove.

[0063] Refer to Figure 3a 、 Figure 5 and Figure 6 In some embodiments, the second notch 232 extends axially along the mounting cylinder 23 to the port of the mounting cylinder 23. The seal 26 is provided with a sealing portion 262 extending axially along the mounting cylinder 23, and the sealing portion 262 is sealingly inserted into the second notch 232. In the solution of this embodiment, by extending the second notch 232 to the port of the mounting cylinder 23, thus, when installing the piezoelectric ceramic sheet 21, the wire harness 25 of the piezoelectric ceramic sheet 21 can be welded to the piezoelectric ceramic sheet 21 first. When placing the piezoelectric ceramic sheet 21 with the welded wire harness 25 from the port of the mounting cylinder 23, the wire harness 25 can be aligned with the position where the port of the mounting cylinder 23 is penetrated by the second notch 232 and then placed; compared with the method of first installing the piezoelectric ceramic sheet 21 into the mounting cylinder 23 and then inserting the wire harness 25 from the second notch 232 to weld with the piezoelectric ceramic sheet 21, the installation difficulty is greatly reduced; in addition, the seal 26 is provided with a sealing portion 262 inserted into the second notch 232, ensuring the sealing performance at the second notch 232.

[0064] Refer to Figure 3a 、 Figure 5 and Figure 6 In some embodiments, the second notch 232 extends axially along the mounting cylinder 23 to the port and / or bottom of the mounting cylinder 23. In this way, the wire harness 25 can extend out along the outer wall of the roller brush cavity 10, which is more convenient for the extraction and dispensing sealing fixation of the wire harness 25.

[0065] It should be noted that for the above-mentioned various embodiments of the roller brush device of the present application, in the case of no conflict with each other, the above-mentioned embodiments can be arbitrarily combined or combined to form a new embodiment.

[0066] Refer to Figure 7 The present disclosure also provides a cleaning robot, which includes a main body, a suction device and the above-mentioned roller brush device. The roller brush device is arranged on the main body. For example, the roller brush device is arranged in the middle of the main body and faces the surface to be cleaned. Its specific structure refers to the above-mentioned embodiments. Since this cleaning robot adopts all the technical solutions of all the above-mentioned embodiments of the roller brush device, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one; among them, the suction device is arranged in the main body, the suction device is communicated with the dust suction port 12 of the roller brush device, and the suction device makes the roller brush accommodating cavity 11 of the roller brush device form a negative pressure by pumping air, so as to lead the garbage to the dust suction port 12 to realize the cleaning of the garbage collected by the roller brush 200.

[0067] The present disclosure also provides a cleaning system, including a base station and the above-mentioned cleaning robot. The cleaning robot is maintained in the base station, and the types of maintenance include but are not limited to charging, dust collection, cleaning member cleaning, replenishing clean water, and pumping sewage. For the specific structure of the cleaning robot, reference may be made to the above embodiments. Since this cleaning system adopts all the technical solutions of all the above embodiments of the cleaning robot, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0068] The above are only partial or preferred embodiments of the present utility model. Whether in terms of text or drawings, they shall not limit the scope of protection of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the overall concept of the present utility model, or any direct / indirect application in other related technical fields, is included in the scope of protection of the present utility model.

Claims

1. A roller brush device is applied to a cleaning robot. During the process of the cleaning robot performing a cleaning task, the roller brush device is used to sweep the garbage on the area to be cleaned and detect the vibration caused by the garbage. It is characterized in that The roller brush device comprises: A roller brush cavity body, comprising a roller brush accommodating cavity and a dust suction port communicated with the roller brush accommodating cavity, wherein the roller brush accommodating cavity is provided with an opening on a side facing the area to be cleaned; A roller brush is rotatably disposed in the roller brush accommodating chamber, and when the cleaning robot performs the cleaning task, the garbage enters the roller brush accommodating chamber from the opening; The vibration detection device is arranged on the outer wall of the roller brush cavity and is used to detect the vibration generated by the garbage hitting the roller brush cavity.

2. The roller brush device according to claim 1, wherein, The dust suction port is arranged at one end of the roller brush cavity, and / or the vibration detection device is arranged adjacent to the dust suction port.

3. The roller brush device according to claim 1, characterized in that, A groove is provided on the outer wall of the rolling brush cavity, and the vibration detection device includes a piezoelectric ceramic sheet, which is sealed on the notch of the groove to enclose the groove to form a first cavity.

4. The roller brush device according to claim 3, characterized in that, The vibration detection device further comprises a pressing block, one end of which abuts against an edge of a side of the piezoelectric ceramic sheet facing away from the groove, and the pressing block and a side of the piezoelectric ceramic sheet facing away from the groove form a second cavity.

5. The roller brush device according to claim 4, characterized in that, An installation cylinder arranged around the groove is provided on the outer wall of the rolling brush cavity, and the pressing block is arranged in the installation cylinder. The pressing block and the installation cylinder are slidably matched along the axial direction of the installation cylinder.

6. The roller brush device according to claim 5, characterized in that, The vibration detection device further comprises an elastic component, wherein the elastic component is connected to the pressing block and applies a force to the pressing block toward the piezoelectric ceramic sheet.

7. The roller brush device according to claim 6, characterized in that, The elastic component includes an end cover and an elastic member. The end cover is fixedly connected to the mounting tube and seals the port of the mounting tube. The elastic member is connected to a side of the end cover facing the mounting tube and elastically abuts against the pressing block.

8. The roller brush device according to claim 7, characterized in that, The vibration detection device further includes a sealing member disposed around the port of the mounting tube, wherein the sealing member is disposed between the end cover and the port of the mounting tube.

9. The roller brush device according to claim 8, wherein, The portion where the seal contacts the port of the mounting tube is provided with an annular rib abutting against the port; and / or, The sealing member is sleeved outside the port of the installation tube and / or is pressed onto the port of the installation tube.

10. The roller brush device according to claim 5, characterized in that, A circumferential limiting structure is provided between the pressing block and the inner wall of the mounting tube to limit the circumferential movement of the pressing block relative to the mounting tube; Wherein, the circumferential limiting structure comprises a limiting strip and a limiting groove, and one of the inner wall of the mounting tube and the outer wall of the pressing block is provided with the limiting strip, and the other is provided with the limiting groove.

11. The roller brush device according to claim 5, characterized in that, A first notch communicating with the second cavity is provided on the side wall of the pressing block, a second notch corresponding to the position of the first notch is provided on the side wall of the mounting tube, and the wiring harness of the piezoelectric ceramic piece is led out of the mounting tube through the first notch and the second notch.

12. The roller brush device according to claim 11, wherein, The rolling brush cavity is provided with a glue dispensing groove docking with the second notch, and the wiring harness at the second notch is sealed by glue dispensing; and / or, The vibration detection device also includes a sealing member, the second notch extends axially along the mounting tube to the port and / or bottom of the mounting tube, the sealing member is provided with a sealing portion cooperating with the second notch, and the sealing portion is sealingly inserted in the second notch.

13. A cleaning robot, characterized in that, include: ontology; A suction device is disposed in the body. The suction device is in communication with the dust suction port. The suction device creates a negative pressure in the roller brush receiving cavity by pumping air to draw the garbage to the dust suction port. and The roller brush device according to any one of claims 1 to 12 is disposed in the body.

14. A cleaning system, characterized in that, Comprising: A base station; and The cleaning robot according to claim 13, and the cleaning robot is maintained in the base station.

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