Automatic cleaning dust box assembly and robot vacuum

Abstract

The application relates to the technical field of cleaning machines, and relates to an automatic cleaning dust box assembly and a sweeper, which comprises a water storage tank, a dust box, a water pump, a driving motor and a hepa, wherein the driving motor is used for driving the hepa to rotate, the water pump is used for providing a water source for cleaning the hepa, when the hepa needs to be cleaned, the water pump is used for conveying water in the water storage tank to the top of the hepa, and the driving motor is used for driving the hepa to rotate, under the joint action of the flushing of the water pump and the high-speed rotating centrifugal force, dust on the hepa falls into the dust box along with water flow, therefore, the hepa can be cleaned and reused without opening the dust box assembly, the convenience of use is improved, the hepa does not need to be cleaned in a long period of use, and the effective use time of the sweeper is improved.

Description

Technical Field

[0001] This invention relates to the field of cleaning machine technology, and more particularly to an automatic cleaning dustbin assembly and a sweeper. Background Technology

[0002] Currently, robotic vacuum cleaners mainly consist of a main body, a dustbin assembly installed inside the main body, and a suction motor. The suction motor provides suction power to the dustbin assembly. The dustbin assembly has a suction port and contains a HEPA filter. During operation, small dust particles sucked in through the suction port are filtered and blocked outside the HEPA filter, while the airflow generated by the motor passes through the HEPA filter. After a period of use, many small dust particles accumulate on the outer surface of the HEPA filter, greatly affecting its filtration efficiency and reducing its lifespan. At this point, the dustbin assembly must be opened to remove the HEPA filter for cleaning and reinstallation. This not only makes cleaning the HEPA filter inconvenient but also reduces the effective operating time of the robotic vacuum cleaner due to the need to clean it after a short period of use. Summary of the Invention

[0003] The main objective of this invention is to provide an automatically cleaning dustbin assembly and a sweeping machine, aiming to solve the technical problem in the prior art where the dustbin assembly must be opened to remove the HEPA filter for cleaning and reinstallation. This not only causes inconvenience in cleaning the HEPA filter, but also reduces the effective usage time of the sweeping machine due to the need to clean the HEPA filter after a short period of use.

[0004] The present invention proposes the following technical solution:

[0005] An automatic cleaning dustbin assembly includes: a water tank, a dustbin, a water pump, a drive motor, and a HEPA filter. The HEPA filter is positioned above the dustbin. The drive motor drives the HEPA filter to rotate via a transmission mechanism. The inlet of the water pump is connected to the water tank, and the outlet of the water pump is connected to the top of the HEPA filter. When the HEPA filter needs to be cleaned, the water pump delivers water from the water tank to the top of the HEPA filter, while the drive motor drives the HEPA filter to rotate. Under the combined action of the water pump's flushing and the high-speed centrifugal force of the rotation, the dust on the HEPA filter falls into the dustbin with the water flow.

[0006] Further, the dust box includes a top cover, and the transmission mechanism includes a cover, a retaining spring, a rotating component, a screw, and a belt. The rotating component includes a transmission part and a connecting part. The transmission part is connected to the connecting part. The belt is wound around the transmission part and the output end of the drive motor. The outer peripheral surface of the connecting part is fixedly connected to the HEPA filter. The center of the rotating component has a first through hole penetrating the transmission part and the connecting part. The bottom surface of the connecting part has a mounting hole. The top cover extends downward to form a central shaft corresponding to the first through hole. The outer peripheral surface of the central shaft has an annular groove for mounting the retaining spring. The rotating component has a blind hole corresponding to the position of the first through hole. The diameter of the blind hole is larger than the diameter of the first through hole. The cover has a second through hole corresponding to the position of the mounting hole. The central shaft passes through the first through hole and enters the blind hole. The inner side of the retaining spring is embedded in the annular groove. The upper surface of the retaining spring abuts against the connecting part. The cover is closed on the bottom of the connecting end. The screw passes through the second through hole and the mounting hole in sequence to fix the cover.

[0007] Furthermore, a bottom cover is provided below the HEPA filter, and a guide channel is formed on the bottom cover. The guide channel is used to guide the water flow for cleaning the HEPA filter into the dust box.

[0008] Furthermore, the dust box includes a bottom cover, the transmission mechanism includes a bearing, a rotating component, and a belt, the rotating component includes a transmission part and a connecting part, the transmission part is connected to the connecting part, the belt is wound around the transmission part and the output end of the drive motor respectively, the outer peripheral surface of the connecting part is fixedly connected to the HEPA filter, the transmission part has a first through hole at its center, the connecting part has a receiving cavity at its center that can accommodate the bearing, the bottom cover extends upward corresponding to the position of the first through hole to form a central shaft, the bearing is installed in the receiving cavity, the central shaft passes through the bearing and the first through hole in sequence, the outer peripheral surface of the bearing is interference-fitted with the inner wall surface of the receiving cavity, and the inner peripheral surface of the bearing is interference-fitted with the outer peripheral surface of the central shaft.

[0009] Furthermore, a guide channel is formed on the bottom cover, which is used to guide the water flow for cleaning the HEPA filter into the dust box.

[0010] Furthermore, a protective cover is provided above the belt to protect it.

[0011] Furthermore, the dust box includes a top cover, and the drive motor and water pump are disposed above the top cover.

[0012] Furthermore, the HEPA filter has a circular structure.

[0013] Furthermore, the dust box has a suction port, and the suction port is covered with a baffle.

[0014] This application discloses a sweeping machine that includes the aforementioned automatically cleaning dustbin assembly.

[0015] This invention provides an automatic cleaning dustbin assembly and a sweeper, including a water tank, a dustbin, a water pump, a drive motor, and a HEPA filter. The drive motor drives the HEPA filter to rotate, and the water pump provides water for cleaning the HEPA filter. When the HEPA filter needs to be cleaned, the water pump delivers water from the tank to the top of the HEPA filter, while the drive motor drives the HEPA filter to rotate. Under the combined action of the water pump's flushing and the high-speed centrifugal force of the rotation, the dust on the HEPA filter falls into the dustbin with the water flow. Therefore, this invention allows the HEPA filter to be cleaned and reused without opening the dustbin assembly, improving ease of use, extending the service life of the HEPA filter, and eliminating the need for manual cleaning of the HEPA filter for extended periods of use, thus increasing the effective operating time of the sweeper. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall internal structure of the sweeper of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of the sweeper of the present invention (excluding the protective cover);

[0018] Figure 3 This is a cross-sectional view of an embodiment of the mop assembly of the present invention;

[0019] Figure 4 This is a cross-sectional view of another embodiment of the mop assembly of the present invention.

[0020] The names of the components shown in the diagram are as follows: 1. Water tank; 2. Dust box; 21. Suction port; 22. Baffle; 3. Water pump; 4. Drive motor; 5. HEPA filter; 6. Top cover; 61. Central shaft; 7. Protective cover; 8. Transmission structure; 81. Snap cover; 811. Blind hole; 812. Second through hole; 82. Snap ring; 83. Rotating component; 831. Transmission part; 832. Connecting part; 833. Mounting hole; 834. First through hole; 835. Annular groove; 836. Receiving cavity; 84. Screw; 85. Belt; 86. Bearing; 9. Bottom cover; 91. Guide groove.

[0021] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Reference Figures 1 to 4An automatic cleaning dustbin assembly includes: a water tank 1, a dustbin 2, a water pump 3, a drive motor 4, and a HEPA filter 5. The HEPA filter 5 is positioned above the dustbin 2. The drive motor 4 drives the HEPA filter 5 to rotate via a transmission mechanism. The water inlet of the water pump 3 is connected to the water tank 1, and the water outlet of the water pump 3 is connected to the top of the HEPA filter 5. When the HEPA filter 5 needs to be cleaned, the water pump 3 delivers water from the water tank to the top of the HEPA filter 5, while the drive motor 4 drives the HEPA filter 5 to rotate. Under the combined action of the flushing action of the water pump 3 and the high-speed centrifugal force of the rotation, the dust on the HEPA filter 5 falls into the dustbin 2 with the water flow.

[0027] Specifically, in this application, the water storage tank 1 is connected to the inlet end of the water pump 3 via an inlet pipe, and the outlet end of the water pump 3 is connected to an outlet pipe, with the outlet of the outlet pipe located above the HEPA filter 5. The HEPA filter 5 is a high-efficiency filter that can block extremely fine dust particles with an efficiency of 99.97%. Its air permeability is relatively low, therefore it is often designed in a wavy shape to increase the air permeability area. Some HEPA filters 5 can be repeatedly washed. Preferably, the outlet is located close to the center of the HEPA filter 5. Under the action of high-speed centrifugal force, water near the center of the HEPA filter 5 is thrown to the outer edge of the HEPA filter 5, rinsing along the outer surface of the HEPA filter 5, improving cleaning efficiency and expanding the cleaning area. This application allows the HEPA filter 5 to be cleaned and reused without opening the dust box assembly, improving ease of use. It also eliminates the need to clean the HEPA filter 5 for extended periods, increasing the effective operating time of the sweeper.

[0028] Reference Figure 3In one feasible embodiment, the dust box 2 includes a top cover 6, and the transmission mechanism includes a retaining cover 81, a retaining spring 82, a rotating component 83, a screw 84, and a belt 85. The rotating component 83 includes a transmission part 831 and a connecting part 832. The transmission part 831 is connected to the connecting part 832. The belt 85 is wound around the transmission part 831 and the output end of the drive motor 4, respectively. The outer peripheral surface of the connecting part 832 is fixedly connected to the HEPA filter 5. A first through hole 834 penetrating the transmission part 831 and the connecting part 832 is opened at the center of the rotating component 83. A mounting hole 833 is opened on the bottom surface of the connecting part 832. The top cover 6 extends downward to form a central shaft 61 corresponding to the first through hole 834. An annular groove 835 for mounting the retaining spring 82 is provided on the outer circumferential surface of the central shaft 61. A blind hole 811 is provided on the rotating member 83 corresponding to the position of the first through hole 834. The diameter of the blind hole 811 is larger than the diameter of the first through hole 834. A second through hole 812 is provided on the cover 81 corresponding to the position of the mounting hole 833. The central shaft 61 passes through the first through hole 834 and enters the blind hole 811. The inner side of the retaining spring 82 is embedded in the annular groove 835. The upper surface of the retaining spring 82 abuts against the connecting part 832. The cover 81 covers the bottom of the connecting end. The screw 84 passes through the second through hole 812 and the mounting hole 833 in sequence to fix the cover 81.

[0029] Specifically, the HEPA filter 5 is glued to the rotating component 83, which is lubricated with grease and secured to the rotating shaft with a retaining ring 82. The retaining cover 81 is screwed to rotate the component 83, ensuring the shaft remains in a sealed environment. The drive motor 4 starts, driving the rotating component 83 to rotate via a belt 85, causing the HEPA filter 5 fixed to it to rotate as well. In this embodiment, the rotating component 83 rotates around the central shaft 61, and the transmission part 831 is a gear structure. A through hole is provided on the top cover 6, connecting the water outlet end of the water pipe to the top of the HEPA filter 5. This arrangement allows the water outlet end of the water pipe to be fixed above the HEPA filter 5.

[0030] In one feasible implementation, a bottom cover 9 is provided below the HEPA filter 5, and a guide channel 91 is formed on the bottom cover 9. The guide channel 91 is used to guide the water flow for cleaning the HEPA filter 5 into the dust box 2.

[0031] Specifically, the bottom cover 9 has a circular structure, and the guide channel 91 is a guide channel 91 on the edge of the bottom cover 9. The guide channel 91 has a through hole that connects to the dust box 2. The sewage thrown to the outer edge of the HEPA filter 5 is collected along the guide channel 91, and after collecting at the position of the through hole, it falls into the dust box 2.

[0032] Reference Figure 4In one feasible embodiment, the dust box 2 includes a bottom cover 9, and the transmission mechanism includes a bearing 86, a rotating component 83, and a belt 85. The rotating component 83 includes a transmission part 831 and a connecting part 832. The transmission part 831 is connected to the connecting part 832. The belt 85 is wound around the transmission part 831 and the output end of the drive motor 4, respectively. The outer peripheral surface of the connecting part 832 is fixedly connected to the HEPA filter 5. The center of the transmission part 831 has a first through hole 834, and the center of the connecting part 832 has a receiving cavity 836 that can accommodate the bearing 86. The bottom cover 9 extends upward to form a central shaft 61 corresponding to the position of the first through hole 834. The bearing 86 is installed in the receiving cavity 836. The central shaft 61 passes through the bearing 86 and the first through hole 834 in sequence. The outer peripheral surface of the bearing 86 is interference-fitted with the inner wall surface of the receiving cavity 836, and the inner peripheral surface of the bearing 86 is interference-fitted with the outer peripheral surface of the central shaft 61.

[0033] Specifically, the HEPA 5 is glued to the rotating part 83, the outer ring of the bearing 86 is interference-fitted with the rotating part 83, and the inner ring of the bearing 86 is interference-fitted with the bottom cover 9. By utilizing the characteristics of the bearing 86, the HEPA 5 can rotate smoothly while being firmly fixed in the center position.

[0034] In one feasible embodiment, a guide channel 91 is formed on the bottom cover 9, which is used to guide the water used to clean the HEPA filter 5 into the dust box 2. Specifically, the bottom cover 9 has a circular structure, and the guide channel 91 is a guide channel 91 on the edge of the bottom cover 9. The guide channel 91 has a through hole that connects to the dust box 2. Wastewater thrown to the outer edge of the HEPA filter 5 collects along the guide channel 91, and after collecting at the through hole, falls into the dust box 2.

[0035] In one feasible implementation, a protective cover 7 for protecting the belt 85 is provided above the belt 85.

[0036] In this embodiment, the dust box 2 includes a top cover 6, and the transmission mechanism includes a retaining cover 81, a retaining spring 82, a rotating component 83, a screw 84, and a belt 85. The top cover 6 does not have a central shaft 61, but the central shaft 61 is provided on the protective cover 7. During installation, the protective cover 7 is fixed to the top cover 6 by the lugs on the protective cover 7. During transmission, the protective cover 7 protects the belt 85.

[0037] In one feasible embodiment, the dust box 2 includes a top cover 6, and the drive motor 4 and water pump 3 are disposed above the top cover 6. This arrangement optimizes the layout within the dust box assembly while preventing the drive motor 4 and water pump 3 from being corroded by moisture.

[0038] In one feasible implementation, the HEPA filter 5 has a circular structure. Because the HEPA filter 5 has a circular structure, stability during rotation is improved, and the cleanliness of each area remains uniform during washing.

[0039] In one feasible embodiment, the dust box 2 has a suction port 21, and the suction port 21 is covered by a baffle 22. During the suction process, the baffle 22 is opened, allowing the debris to enter the dust box 2 along with the airflow. When the operation stops, the baffle 22 covers the suction port 21 under the action of gravity, preventing the debris in the dust box 2 from falling out under external force and causing secondary pollution to the surrounding environment.

[0040] In one feasible implementation, a water passage connecting to the outlet pipe is formed inside the top cover 6, meaning the interior of the top cover 6 is a hollow structure to facilitate the formation of the water passage. Several baffles of decreasing height are arranged along the water flow direction, which is from the center of the HEPA filter 5 outwards. A baffle interval is formed between adjacent baffles, and each baffle interval has a drain hole communicating with the top of the HEPA filter 5. As water flows through the water passage, the flow velocity decreases and the height of the baffles 22 decreases, ensuring a consistent flow rate at each drain hole. The principle of this scheme is as follows: the water pump 3 pressurizes the water in the inlet tank, providing sufficient pressure for the water entering the water passage, thus achieving a certain flow velocity. Then, baffles 22 with flow diversion and regulation functions are used, with the cross-sectional area and flow velocity of the water flowing through each baffle 22 in the vertical direction serving as the basis for flow diversion and regulation control. As water flows through the waterway, the flow rate decreases and the height of the baffle 22 decreases, making the flow rate of each drain hole consistent, thereby achieving uniform water output and enabling the water flow to evenly flush the HEPA 5, thus improving cleaning efficiency.

[0041] This application discloses a sweeping machine, including the aforementioned automatically cleaning dustbin assembly. The sweeping machine is equipped with a fan that provides suction to the dustbin 2. After the sweeping machine finishes cleaning the floor, it activates the drive motor 4 and water pump 3 to clean the HEPA filter 5.

[0042] In the aforementioned embodiments, the various components (e.g., water pump 3, fan, motor) within the dustbin assembly are controlled by a control board located within the sweeper. Each component is connected to and driven by the control board. By providing the control board, when adjustments to the water pump 3, fan, or motor are needed, control commands are simply sent to the control board, which then controls the water pump 3, fan, and motor to operate accordingly, thus achieving control over the water pump 3, fan, and motor. This embodiment is not limited to any particular method of sending control commands to the control board. Specifically, existing technologies such as button control, remote control, intelligent control, or remote control can be used. Those skilled in the art can apply existing control methods to this embodiment based on actual needs, which will not be elaborated upon here.

[0043] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatically cleaning dustbin assembly, characterized by, The dust box comprises a top cover, the transmission mechanism comprises a clamping cover, a clamping spring, a rotating piece, a screw and a belt, the rotating piece comprises a transmission part and a connecting part, the transmission part is connected with the connecting part, the belt is wound on the transmission part and the output end of the driving motor respectively, the outer periphery of the connecting part is fixedly connected with the hepa, the center of the rotating piece is provided with a first through hole penetrating through the transmission part and the connecting part, the bottom surface of the connecting part is provided with a mounting hole, the top cover extends downward to form a central shaft corresponding to the first through hole, the outer periphery of the central shaft is provided with an annular groove for mounting the clamping spring, the rotating piece is provided with a blind hole corresponding to the position of the first through hole, the hole diameter of the blind hole is greater than the hole diameter of the first through hole, the clamping cover is provided with a second through hole corresponding to the mounting hole, the central shaft penetrates through the first through hole and enters the blind hole, the inner side of the clamping spring is embedded in the annular groove, the upper surface of the clamping spring abuts against the connecting part, the clamping cover is covered on the bottom of the connecting end, and the screw is sequentially threaded through the second through hole and the mounting hole to fix the clamping cover. The dust box comprises a top cover, the transmission mechanism comprises a clamping cover, a clamping spring, a rotating piece, a screw and a belt, the rotating piece comprises a transmission part and a connecting part, the transmission part is connected with the connecting part, the belt is wound on the transmission part and the output end of the driving motor respectively, the outer periphery of the connecting part is fixedly connected with the hepa, the center of the rotating piece is provided with a first through hole penetrating through the transmission part and the connecting part, the bottom surface of the connecting part is provided with a mounting hole, the top cover extends downward to form a central shaft corresponding to the first through hole, the outer periphery of the central shaft is provided with an annular groove for mounting the clamping spring, the rotating piece is provided with a blind hole corresponding to the position of the first through hole, the hole diameter of the blind hole is greater than the hole diameter of the first through hole, the clamping cover is provided with a second through hole corresponding to the mounting hole, the central shaft penetrates through the first through hole and enters the blind hole, the inner side of the clamping spring is embedded in the annular groove, the upper surface of the clamping spring abuts against the connecting part, the clamping cover is covered on the bottom of the connecting end, and the screw is sequentially threaded through the second through hole and the mounting hole to fix the clamping cover. ​ 2. An automatically cleaning dustbin assembly characterized in that, ​ ​ The dust box comprises a bottom cover, the transmission mechanism comprises a bearing, a rotating member and a belt, the rotating member comprises a transmission part and a connecting part, the transmission part is connected with the connecting part, the belt is wound on the transmission part and the output end of the driving motor respectively, the outer periphery of the connecting part is fixedly connected with the hepa, the center of the transmission part is provided with a first through hole, the center of the connecting part is provided with a containing cavity capable of containing the bearing, the bottom cover is upwardly extended to form a central shaft at the position corresponding to the first through hole, the bearing is installed in the containing cavity, the central shaft passes through the bearing and the first through hole in sequence, the outer periphery of the bearing is in interference fit with the inner wall surface of the containing cavity, and the inner periphery of the bearing is in interference fit with the outer periphery of the central shaft.

3. The self-cleaning dustbin assembly of claim 1, wherein, A bottom cover is arranged below the hepa, and a flow guide groove is formed on the bottom cover and used for guiding the water flow for cleaning the hepa into the dust box.

4. The self-cleaning dustbin assembly of claim 2, wherein, A flow guide groove is formed on the bottom cover and used for guiding the water flow for cleaning the hepa into the dust box.

5. The self-cleaning dustbin assembly of claim 1 or 2, wherein, A protective cover is arranged above the belt and used for protecting the belt.

6. The self-cleaning dustbin assembly of claim 1 or 2, wherein, The dust box comprises a top cover, and the driving motor and the water pump are arranged above the top cover.

7. The self-cleaning dustbin assembly of claim 1 or 2, wherein, The hepa has a circular structure.

8. The self-cleaning dustbin assembly of claim 1 or 2, wherein, The dust box is provided with a dust suction port, and a baffle is arranged on the dust suction port cover.

9. A robot vacuum cleaner, characterized in that The dust box assembly comprises the automatic cleaning dust box according to any one of claims 1-8.

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