Roller assembly and cleaning robot

Abstract

The utility model provides a roller assembly and a cleaning robot. The roller assembly comprises a roller body, a driving piece and blades. A mounting cavity is formed in the roller body; the driving part is located in the mounting cavity and used for driving the roller body to rotate, and a gap is formed between the driving part and the inner side wall of the mounting cavity; the blades are located in the mounting cavities and detachably connected with the roller body through connecting assemblies, and the blades rotate along with the roller body. When the roller body rotates, due to the fact that the blades rotate along with the roller body, the blades rotate to drive the air in the mounting cavity to flow, heat dissipation is conducted on the driving part through the flowing air, the temperature of the driving part is lowered, and the situation that the driving part is overheated is reduced. According to the roller assembly, the blades are detachable relative to the roller body, it means that the blades can be independently machined, the machining difficulty is reduced, in the later maintenance process, the roller body or the blades can be independently replaced, the roller body and the blades do not need to be integrally replaced, and the production and later maintenance cost is reduced.

Description

Technical Field

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

[0002] There are many types of mop cloths for cleaning robots, including the common flat block-shaped rag tray, the left-right symmetrical rag tray and the roller-shaped rag tube.

[0003] In addition to the good cleaning and anti-smudge effects, the drum-shaped rag drum has the advantage of being easy to combine with the running water cleaning function. That is, when the cleaning robot performs the cleaning task, the drum rotates to clean the ground while clean water is sprayed onto the surface of the rag on the drum for cleaning, and then the dirty water is scraped off and collected and pumped away. The drum is generally large in size. In order to make full use of the space, the drive motor is generally set to be built-in, that is, the drive motor is arranged in the drum, but it will also bring some new problems. For example, the motor is in a relatively closed space, the heat dissipation effect is not good, and the motor may overheat.

[0004] To this end, there is a solution in the prior art to provide a spiral protrusion on the inner wall of the drum to guide the air flow. However, the production and processing of the drum in this technical solution is difficult, resulting in an increase in the initial production and subsequent maintenance costs. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a roller assembly and a cleaning robot, which can effectively improve the heat dissipation effect of the motor on the basis of lower cost.

[0006] According to a first aspect of the utility model, a drum assembly includes a drum body, a driving member and blades; an installation cavity is provided inside the drum body; the driving member is located in the installation cavity, the driving member is used to drive the drum body to rotate, and there is a gap between the driving member and the inner side wall of the installation cavity; the blades are located in the installation cavity, the blades are detachably connected to the drum body through a connecting assembly, and the blades rotate along with the drum body.

[0007] The roller assembly according to the embodiment of the utility model has at least the following beneficial effects: the driving member drives the roller body to rotate, and since the blades rotate along with the roller body, the rotation of the blades drives the air in the installation cavity to flow, and the air flows in a gap between the driving member and the inner wall of the installation cavity, and the driving member is dissipated by the flowing air, thereby reducing the temperature of the driving member and reducing the occurrence of overheating of the driving member. The blades in the roller assembly of the above embodiment are detachable relative to the roller body, which means that the blades can be processed independently, reducing the difficulty of processing, and during later maintenance, the roller body or the blades can be replaced separately, without replacing both as a whole, reducing the production and later maintenance costs. The above roller assembly uses the driving member of the roller assembly to drive the blades to rotate, so as to improve the heat dissipation effect of the driving member itself, so that the roller assembly can achieve the purpose of improving the heat dissipation effect of the built-in driving member through a simple structure, and the overall cost is not significantly increased, and the space occupied by the roller assembly is not significantly increased, which is highly practical.

[0008] According to some embodiments of the first aspect of the utility model, the connecting assembly includes a first mounting bracket, the first mounting bracket is fixedly mounted in cooperation with the inner wall of the mounting cavity, and the blade is mounted on the first mounting bracket.

[0009] According to some embodiments of the first aspect of the utility model, the first mounting bracket is cylindrical, a convex rib is provided on the outer wall of the first mounting bracket, and a limiting groove cooperating with the convex rib is provided on the inner wall of the mounting cavity.

[0010] According to some embodiments of the first aspect of the utility model, the first mounting bracket includes a bottom plate and a side plate, the bottom plate is provided with a mounting hole, the rib is provided on the outer side of the side plate, and the blade is fixed in cooperation with the mounting hole by a threaded connector.

[0011] According to some embodiments of the first aspect of the utility model, the roller assembly also includes a roller cover plate, a second mounting bracket is mounted on the roller cover plate, the driving member is fixedly mounted on the second mounting bracket, the end of the roller body away from the second mounting bracket is rotatably connected to a limiting end cover, the limiting end cover is mounted on the roller cover plate, and the limiting end cover is provided with a limiting portion for blocking the axial movement of the roller body.

[0012] According to some embodiments of the first aspect of the utility model, the limiting end cover is detachably mounted on the drum cover.

[0013] According to some embodiments of the first aspect of the utility model, the base plate is also provided with a connecting rod, the connecting rod is fixedly connected to the threaded connecting piece, a first bearing is provided between the limiting end cover and the connecting rod, and a second bearing is provided between the second mounting bracket and the inner wall of the mounting cavity.

[0014] According to some embodiments of the first aspect of the utility model, a countersunk hole is provided on the base plate, the bottom of the countersunk hole is connected to the mounting hole, the connecting rod is partially inserted into the countersunk hole, and the countersunk hole can limit the rotation of the connecting rod.

[0015] According to some embodiments of the first aspect of the utility model, a ventilation hole is provided on the bottom plate, and the ventilation hole is connected to the installation cavity.

[0016] A cleaning robot according to an embodiment of the second aspect of the utility model comprises the roller assembly described in the embodiment of the first aspect.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of an embodiment of a cleaning robot;

[0019] Figure 2 is a schematic diagram of an embodiment of a roller assembly;

[0020] Figure 3 is an exploded schematic diagram of an embodiment of a roller assembly;

[0021] Figure 4 is a schematic diagram of an embodiment of a first mounting bracket;

[0022] Figure 5 A cross-sectional view of an embodiment of a roller assembly Figure 1 ;

[0023] Figure 6 yes Figure 5 A partial enlarged view of the middle part;

[0024] Figure 7 A cross-sectional view of an embodiment of a roller assembly Figure 2 ;

[0025] Figure 8 is an exploded schematic diagram of an embodiment of a roller cover and related components;

[0026] Fig. 9 It is a cross-sectional view of an embodiment of a roller cover and related components.

[0027] Reference numerals

[0028] Drum body 100; mounting cavity 110; rag 120; limiting groove 130;

[0029] A driving member 200;

[0030] Blade 300;

[0031] First mounting bracket 410; bottom plate 420; convex rib 430; mounting hole 440; threaded connector 450; connecting rod 460; countersunk hole 470; first bearing 480; air vent 490;

[0032] The position-limiting end cover 500; the hook portion 510; the position-limiting portion 520; the knob 530;

[0033] A second bearing 610; a second mounting bracket 620;

[0034] Cleaning robot 700 ; drum cover 710 ; sewage box 720 ; water spray assembly 730 ; comb plate 740 ; dirt shielding plate 750 ; sewage tank 760 ; water spray hole 770 . DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the descriptions involving orientation, such as left, right, etc., the orientation or positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] like Figures 1 to 7As shown, the utility model provides a drum assembly, including a drum body 100, a driving member 200 and a blade 300. The drum body 100 is cylindrical, and a mounting cavity 110 is provided inside. The mounting cavity 110 runs through the drum body 100, and there is a gap between the driving member 200 and the inner wall of the mounting cavity 110. The driving member 200 is located in the mounting cavity 110, and the driving member 200 is fixedly installed on the cleaning robot 700 through the mounting structure, and the driving member 200 is used to drive the drum body 100 to rotate. The blade 300 is located in the mounting cavity 110, and the blade 300 is detachably connected to the drum body 100 through the connecting assembly; and the blade 300 rotates with the drum body 100.

[0040] Among them, a rag 120 is installed on the outside of the drum body 100 to clean the floor. The driving member 200 can be set as a motor, which is easy to control and works stably and reliably. Since the blade 300 can be disassembled relative to the drum body 100, it means that the blade 300 is set as an independent component, which is convenient for processing and later maintenance, and reduces the processing and later maintenance costs. As long as the blade 300 is within the size range of the installation cavity 110, the design of the blade 300 is not limited by the drum body 100, and then the blade 300 that is more suitable for the working condition can be designed and processed. Specifically, the blade 300 can be an axial flow blade.

[0041] When the drum assembly of the above embodiment is working, the motor drives the drum body 100 to rotate, and the blades 300 rotate along with the drum body 100. The rotation of the blades 300 drives the air in the installation cavity 110 to flow in the gap between the motor and the inner wall of the installation cavity 110. The flowing air dissipates the heat of the motor, reduces the temperature of the motor, and reduces the occurrence of motor overheating. The drum assembly of the above embodiment uses the drive member 200 of the drum assembly to drive the blades 300 to rotate, so as to improve the heat dissipation effect of the drive member 200 itself, so that the drum assembly can achieve the purpose of improving the heat dissipation effect of the built-in drive member 200 through a simple structure, and the overall cost is not significantly increased, and the space occupied by the drum assembly is not significantly increased, and the practicality is strong.

[0042] Among them, the installation cavity 110 is cylindrical as a whole, which is easy to process to reduce costs and also easy to install the motor; the motor and the drum body 100 can be connected by spline plug-in transmission between the output end of the motor and the inner wall of the installation cavity 110, or by interference fit between the output end of the motor and the inner wall of the installation cavity 110, and so on.

[0043] Specifically, if Figures 3 to 6As shown, in some embodiments of the utility model, the connecting component includes a first mounting bracket 410, and the first mounting bracket 410 and the inner side wall of the mounting cavity 110 are fixedly installed together. The first mounting bracket 410 is fixedly installed using the inner side wall of the mounting cavity 110, so that the space inside the mounting cavity 110 can be fully utilized, and the connection between the first mounting bracket 410 and other positions of the drum body 100 can be reduced to avoid affecting the rag 120 on the drum body 100. The blade 300 is installed at the end of the first mounting bracket 410 facing the driving member 200, whereby the blade 300 is located between the driving member 200 and the first mounting bracket 410, thereby reducing the probability of the blade 300 contacting external components and ensuring the normal operation of the blade 300.

[0044] The first mounting bracket 410, the blades 300 and the drum body 100 are manufactured separately, which can reduce the processing difficulty compared to the overall manufacturing. In addition, during the later maintenance process, if the drum body 100, the blades 300 or the first mounting bracket 410 are damaged, only the corresponding parts need to be replaced, and there is no need to replace the entire body, which can reduce the later maintenance cost.

[0045] Specifically, if Figures 3 to 6 As shown, in some embodiments of the utility model, the first mounting bracket 410 is cylindrical. Specifically, the upper end of the first mounting bracket 410 is open, the lower end has a bottom plate 420, and the side is formed by a side plate. The whole is cylindrical. This structure can effectively reduce the material used for the first mounting bracket 410 and reduce costs.

[0046] The outer side wall of the first mounting bracket 410, i.e., the outer side of the side plate, is provided with a convex rib 430, which extends along the axial direction of the drum body 100. The inner side wall of the mounting cavity 110 is provided with a limiting groove 130 that cooperates with the convex rib 430, which extends along the axial direction of the drum body 100. The cylindrical first mounting bracket 410 can extend into the mounting cavity 110 for a certain distance, thereby providing a sufficient plugging stroke for the cooperation between the convex rib 430 and the limiting groove 130, so as to form a stable connection.

[0047] The structural cooperation between the rib 430 and the limiting groove 130 can limit the rotation of the first mounting bracket 410 relative to the drum body 100. The rib 430 and the limiting groove 130 are interference fit to limit the axial movement of the first mounting bracket 410 relative to the drum body 100.

[0048] Among them, one of the convex rib 430 and the limiting groove 130 can be set to be wedge-shaped, so that the convex rib 430 and the limiting groove 130 can be smoothly plugged.

[0049] Of course, it can be understood by those skilled in the art that the connection between the first mounting bracket 410 and the drum body 100 is not limited to the above-mentioned embodiments, and other embodiments may also be adopted. For example, the first mounting bracket 410 may be provided with an external thread on the outer wall, and an internal thread matching the external thread may be provided on the inner wall of the mounting cavity 110, and the first mounting bracket 410 may be installed on the drum body 100 by matching the external thread and the internal thread.

[0050] Specifically, there are many ways to install the blade 300 and the first mounting bracket 410. In some embodiments of the present invention, for example, Figure 5 and Figure 7 As shown, a mounting hole 440 is provided on the bottom plate 420 of the first mounting bracket 410, and the blade 300 is fixed by the threaded connector 450 and the mounting hole 440. In this embodiment, the threaded connector 450 may be a screw, and the mounting hole 440 may be a threaded hole. The screw and the threaded hole are used to press the blade 300 tightly and then fix the blade 300 on the first mounting bracket 410; the installation method of fixing the blade 300 with a screw is simple and fast, and the rotation direction of the screw fastening the blade 300 is opposite to the rotation direction of the blade 300 when working, which can effectively improve the working stability of the blade 300.

[0051] Before installing the first mounting bracket 410, the blade 300 is first installed on the first mounting bracket 410, and then the first mounting bracket 410 is installed on the drum body 100. Of course, the installation method of the blade 300 and the first mounting bracket 410 is not limited to the above embodiment, and other installation methods can also be adopted, such as fixing the blade 300 on the first mounting bracket 410 by rivets, which can also achieve the purpose of fixing the blade 300 on the first mounting bracket 410.

[0052] like Figure 3 and Figure 5As shown, in some embodiments of the present invention, the driving member 200 is fixedly mounted on the cleaning robot 700 through a mounting structure, and the mounting structure includes a roller cover 710 and a second mounting bracket 620. The roller cover 710 is fixedly mounted on the cleaning robot 700, and the second mounting bracket 620 is fixedly mounted on the roller cover 710 by screws. The motor is fixedly mounted on the second mounting bracket 620, and the motor is in a horizontally suspended state. The drum body 100 is plugged into the output end of the motor. In order to position the axial direction of the drum body 100, the drum assembly also includes a limiting end cover 500, and one end of the limiting end cover 500 extends into the first mounting bracket 410. The limiting end cover 500 of this part is annular, and the outer A hook portion 510 is formed inwardly at the end, and a first bearing 480 is arranged between the hook portion 510 and the first mounting bracket 410, thereby, the limiting end cover 500 can also provide a certain support for the first mounting bracket 410, and the hook portion 510 is in a suspended state, so it has a certain elasticity, and the elasticity of the hook portion 510 is utilized to ensure that the hook portion 510 maintains a close fit with the bearing; the other end of the limiting end cover 500 is provided with a limiting portion 520 for blocking the axial movement of the drum body 100, and the contour of the limiting portion 520 is larger than the contour of the opening of the mounting cavity 110 close to the limiting end cover 500, so that the limiting portion 520 cannot enter the mounting cavity 110, and then the limiting portion 520 can limit the end of the drum body 100.

[0053] A matching structure is provided on the drum cover 710 corresponding to the limit end cover 500 to realize that the limit end cover 500 is detachable relative to the drum cover 710. After the drum assembly is installed on the cleaning robot 700, the limit end cover 500 is rotated to a predetermined angle so that the limit end cover 500 can cooperate with the matching structure on the drum cover 710, thereby forming a preliminary limit for the limit end cover 500. The limit end cover 500 forms a limit and support for the drum body 100. When disassembly is required, the limit end cover 500 can be rotated in the opposite direction until the limit end cover 500 is separated from the matching structure on the drum cover 710, and the limit end cover 500 can be taken out at this time.

[0054] For the convenience of manipulation, a knob 530 is provided on the limit end cover 500 , and the limit end cover 500 is driven to rotate by rotating the knob 530 , so that the user can manipulate the limit end cover 500 .

[0055] In some embodiments of the utility model, a transmission connection is formed between the drum body 100 and the motor by plugging, so that the drum body 100 and the motor can be separated in the axial direction. After the limiting end cover 500 is removed, the drum body 100 can be separated from the motor in the axial direction to facilitate cleaning or replacement of the drum body 100, which is very convenient.

[0056] like Figures 3 to 6As shown, in some embodiments of the present utility model, the specific installation method of the first bearing 480 is as follows: the bottom plate 420 of the first mounting bracket 410 is further provided with a connecting rod 460, the connecting rod 460 is fixedly connected to the threaded connector 450, a part of the connecting rod 460 is cylindrical, and the first bearing 480 can be installed on the cylindrical part of the connecting rod 460. In the above-mentioned installation method of the first bearing 480, the threaded connector 450 can be used to install the blade 300 and to fix the connecting rod 460. The structure is simple and practical, and can also provide stable support for the operation of the first bearing 480.

[0057] It should be noted that in order to further enhance the cantilever supporting capability of the connecting rod 460, a countersunk hole 470 is provided on the base plate 420 of the first mounting bracket 410. The bottom of the countersunk hole 470 is connected to the mounting hole 440. At this time, the mounting hole 440 can be a light hole, and the connecting rod 460 is partially inserted into the countersunk hole 470. The countersunk hole 470 is a hole of a non-rotating structure. Therefore, after the connecting rod 460 is inserted into the countersunk hole 470, the structure of the countersunk hole 470 can limit the rotation of the connecting rod 460. The cooperation between the countersunk hole 470 and the connecting rod 460 can, on the one hand, enhance the cantilever supporting capability of the connecting rod 460, and on the other hand, limit the rotation of the connecting rod 460, which is beneficial to the installation of the threaded connector 450. A threaded hole can be provided on the connecting rod 460 corresponding to the threaded connector 450 for cooperation.

[0058] It should be noted that the connection between the connecting rod 460 and the first mounting bracket 410 is not limited to the above-mentioned embodiment, and other embodiments may also be adopted. For example, glue may be provided between the connecting rod 460 and the countersunk hole 470, and a fixed connection is achieved by curing the glue.

[0059] like Figure 3 and Figure 5 As shown, in some embodiments of the present invention, a second bearing 610 is arranged between the second mounting bracket 620 and the inner wall of the mounting cavity 110, and the second bearing 610 is used to support the drum body 100; the driving member 200 is installed on the second mounting bracket 620, and the second mounting bracket 620 is fixedly connected to the cleaning robot 700. The second mounting bracket 620 and the second bearing 610 can increase the stability of the drum body 100 during operation.

[0060] To summarize, in some embodiments of the present invention, the drum body 100 can obtain sufficient support from the first mounting bracket 410 and the second mounting bracket 620 during normal operation, so that the drum body 100 can operate stably. When the drum needs to be cleaned or replaced, the limiting end cover 500 can be rotated to separate the matching structure between the limiting end cover 500 and the cleaning robot 700, that is, the limiting end cover 500 can be taken out. After the limiting end cover 500 is taken out, the drum body 100 can be directly separated from the motor along the axial direction so as to clean or replace the drum body 100.

[0061] It should be noted that after the drum assembly is assembled, the installation cavity 110 is still connected to the outside air, so that the blades 300 drive the air in the installation cavity 110 to circulate and exchange with the outside air, providing a better heat dissipation environment for the motor. In order to further improve the heat dissipation efficiency of the motor, a vent hole 490 penetrating the bottom plate 420 is provided on the bottom plate 420 of the first installation bracket 410, and a channel for the wire to pass through is provided on the second installation bracket 620, which can also be used for air flow. There is a gap between the first installation bracket 410 and the limit end cover 500, and the gap is connected to the vent hole 490, thereby connecting the installation cavity 110 with the outside air. The cross section of the connecting channel between the outside atmosphere and the installation cavity 110 is expanded through the vent hole 490, and the exchange speed between the outside atmosphere and the air in the installation cavity 110 is increased, so as to further improve the heat dissipation efficiency of the motor.

[0062] like Figures 1 to 9 As shown, the utility model also provides a cleaning robot 700, including a housing and a drum assembly of any of the above embodiments, a drum cover 710 is fixedly installed in the housing, the drum cover 710 defines a receiving cavity, the receiving cavity opens downward, and a drum body 100, a second mounting bracket 620, a sewage box 720, a water spray assembly 730, a comb plate 740, and a dirt shielding plate 750 are installed in the receiving cavity. The lower part of the comb plate 740 is sawtooth-shaped, the water spray assembly 730 includes a plurality of water spray holes 770 arranged on the drum body 100, a sewage tank 760 is arranged on the sewage box 720, and a filter unit for filtering sewage is arranged in the sewage tank 760.

[0063] like Figures 8 to 9As shown, a mounting cavity 110 is provided inside the drum body 100, a second mounting bracket 620 is fixedly connected with a motor, the motor is suspended laterally in the mounting cavity 110, a second bearing 610 is installed between the motor and the inner side wall of the mounting cavity 110, a rag 120 is provided on the outer sleeve of the drum body 100, a water spray assembly 730 sprays clean water toward the rag 120 to clean the rag 120, a dirt shielding plate 750 is installed at the lower part of the accommodating cavity, the rag 120 is the first to pass through the dirt shielding plate 750 after cleaning the floor, the dirt shielding plate 750 can reduce the occurrence of the situation that the rag 120 carries garbage and is thrown into the accommodating cavity when it rotates, and the rag 120 will not be in contact with the comb teeth after passing through the dirt shielding plate 750. The comb plate 740 contacts the rag 120, and the comb plate 740 further intercepts the garbage carried in the rag 120 to reduce the amount of garbage entering the next link. After passing through the comb plate 740, the rag 120 continues to rotate and passes through the water spray assembly 730. The water spray assembly 730 sprays clean water onto the rag 120 to clean the rag 120. Then the rag 120 continues to rotate to the sewage box 720. The sewage box 720 is provided with a wiper rib plate, which is arranged parallel to the rag 120. When the rag 120 passes through the wiper rib plate, it will be squeezed by the wiper rib plate, and the squeezed sewage will enter the sewage box 720. After simple filtration in the sewage box 720, the sewage is finally pumped into the sewage tank for storage.

[0064] The blade 300 is detachably mounted in the mounting cavity 110 via the first mounting bracket 410. The blade 300 is an independent component, which is convenient for processing and later maintenance. As long as the blade 300 is within the size range of the mounting cavity 110, the design of the blade 300 is not limited by the drum body 100, and the blade 300 can be designed and processed to better meet the working conditions. Specifically, the blade 300 can be an axial flow blade.

[0065] When the cleaning robot 700 of the above embodiment is working, the motor drives the drum body 100 to rotate, and the blades 300 rotate along with the drum body 100. The rotation of the blades 300 drives the air in the installation cavity 110 to flow in the gap between the motor and the inner wall of the installation cavity 110, and the motor is cooled by the flowing air, thereby reducing the temperature of the motor and reducing the occurrence of motor overheating. The drum assembly of the above embodiment uses the drive member 200 of the drum assembly to drive the blades 300 to rotate, so as to enhance the heat dissipation effect of the drive member 200 itself, so that the drum assembly can achieve the purpose of enhancing the heat dissipation effect of the built-in drive member 200 through a simple structure, and the overall cost is not significantly increased, and the space occupied by the drum assembly is not significantly increased, and the practicality is strong.

[0066] like Figures 3 to 6As shown, in some embodiments of the utility model, the connecting component includes a first mounting bracket 410, and the first mounting bracket 410 and the inner side wall of the mounting cavity 110 are fixedly installed together. The first mounting bracket 410 is fixedly installed using the inner side wall of the mounting cavity 110, so that the space inside the mounting cavity 110 can be fully utilized, and the connection between the first mounting bracket 410 and other positions of the drum body 100 can be reduced to avoid affecting the rag 120 on the drum body 100. The blade 300 is installed at the end of the first mounting bracket 410 facing the driving member 200, whereby the blade 300 is located between the driving member 200 and the first mounting bracket 410, thereby reducing the probability of the blade 300 contacting external components and ensuring the normal operation of the blade 300.

[0067] Specifically, if Figures 3 to 6 As shown, in some embodiments of the utility model, the first mounting bracket 410 is cylindrical. Specifically, the upper end of the first mounting bracket 410 is open, the lower end has a bottom plate 420, and the side is formed by a side plate. The whole is cylindrical. This structure can effectively reduce the material used for the first mounting bracket 410 and reduce costs.

[0068] The outer side wall of the first mounting bracket 410, i.e., the outer side of the side plate, is provided with a convex rib 430, which extends along the axial direction of the drum body 100. The inner side wall of the mounting cavity 110 is provided with a limiting groove 130 that cooperates with the convex rib 430, which extends along the axial direction of the drum body 100. The cylindrical first mounting bracket 410 can extend into the mounting cavity 110 for a certain distance, thereby providing a sufficient plugging stroke for the cooperation between the convex rib 430 and the limiting groove 130, so as to form a stable connection.

[0069] The structural cooperation between the rib 430 and the limiting groove 130 can limit the rotation of the first mounting bracket 410 relative to the drum body 100. The rib 430 and the limiting groove 130 are interference fit to limit the axial movement of the first mounting bracket 410 relative to the drum body 100.

[0070] In some embodiments of the present invention, Figure 5 and Figure 7 As shown, a mounting hole 440 is provided on the bottom plate 420 of the first mounting bracket 410, and the blade 300 is fixed by the threaded connector 450 and the mounting hole 440. In this embodiment, the threaded connector 450 may be a screw, and the mounting hole 440 may be a threaded hole. The screw and the threaded hole are used to press the blade 300 tightly and then fix the blade 300 on the first mounting bracket 410; the installation method of fixing the blade 300 with a screw is simple and fast, and the rotation direction of the screw fastening the blade 300 is opposite to the rotation direction of the blade 300 when working, which can effectively improve the working stability of the blade 300.

[0071] To summarize, in some embodiments of the present invention, the drum body 100 can obtain sufficient support from the first mounting bracket 410 and the second mounting bracket 620 during normal operation, so that the drum body 100 can operate stably. When the drum needs to be cleaned or replaced, the limiting end cover 500 can be rotated to separate the matching structure between the limiting end cover 500 and the cleaning robot 700, that is, the limiting end cover 500 can be taken out. After the limiting end cover 500 is taken out, the drum body 100 can be directly separated from the motor along the axial direction so as to clean or replace the drum body 100.

[0072] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A drum assembly, characterized in that: include: A drum body, wherein a mounting cavity is provided inside the drum body; A driving member is located in the installation cavity, the driving member is used to drive the drum body to rotate, and there is a gap between the driving member and the inner side wall of the installation cavity; The blade is located in the installation cavity, and the blade is detachably connected to the drum body through a connecting component, so that the blade rotates with the drum body.

2. The drum assembly according to claim 1, characterized in that: The connecting assembly comprises a first mounting bracket, the first mounting bracket is fixedly mounted in cooperation with the inner side wall of the mounting cavity, and the blade is mounted on the first mounting bracket.

3. The drum assembly according to claim 2, characterized in that: The first mounting bracket is cylindrical, a convex rib is arranged on the outer side wall of the first mounting bracket, and a limiting groove cooperating with the convex rib is arranged on the inner side wall of the mounting cavity.

4. The drum assembly according to claim 3, characterized in that: The first mounting bracket includes a bottom plate and a side plate, the bottom plate is provided with a mounting hole, the convex rib is provided on the outer side of the side plate, and the blade is fixed in cooperation with the mounting hole through a threaded connector.

5. The drum assembly according to claim 4, characterized in that: The roller assembly also includes a roller cover plate, a second mounting bracket is mounted on the roller cover plate, the driving member is fixedly mounted on the second mounting bracket, the end of the roller body away from the second mounting bracket is rotatably connected to a limiting end cover, the limiting end cover is mounted on the roller cover plate, and the limiting end cover is provided with a limiting portion for blocking the axial movement of the roller body.

6. The drum assembly according to claim 5, characterized in that: The limiting end cover is detachably mounted on the roller cover plate.

7. The drum assembly according to claim 5, characterized in that: The base plate is also provided with a connecting rod, the connecting rod is fixedly connected to the threaded connector, a first bearing is provided between the limiting end cover and the connecting rod, and a second bearing is provided between the second mounting bracket and the inner side wall of the mounting cavity.

8. The drum assembly according to claim 7, characterized in that: The bottom plate is provided with a countersunk hole, the bottom of which is communicated with the mounting hole, the connecting rod is partially inserted into the countersunk hole, and the countersunk hole can limit the rotation of the connecting rod.

9. The drum assembly according to claim 4, characterized in that: The bottom plate is provided with an air hole, and the air hole is connected to the installation cavity.

10. A cleaning robot, characterized in that: include: The drum assembly according to any one of claims 1 to 9.

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