A vacuum cleaner with a floor brush assembly

Abstract

This application discloses a vacuum cleaner with a floor brush assembly, including a main unit and a floor brush assembly. The floor brush assembly is provided with a first air inlet, a first air outlet, an air inlet channel, and an air outlet channel. The main unit is provided with a second air inlet and a second air outlet. The first air inlet and the second air inlet are connected by an air inlet channel. The first air outlet and the second air outlet are connected by an air outlet channel. The bottom of the floor brush assembly is provided with an inwardly recessed dust collection chamber. The first air inlet and the first air outlet are both located on the dust collection chamber and are connected through the dust collection chamber. The first air inlet can draw the gas discharged from the first air outlet into the air inlet channel through the dust collection chamber.

Description

Technical Field

[0001] This application relates to the field of cleaning device technology, and more specifically to a vacuum cleaner with a floor brush assembly. Background Technology

[0002] A vacuum cleaner is a device used to clean floor surfaces, furniture surfaces, and other object surfaces. It primarily uses a motor to generate negative pressure, sucking in dust and debris from the air and collecting it in a dust cup. With technological advancements, vacuum cleaner performance has continuously improved, gradually acquiring stronger suction, lighter bodies, and more efficient filtration systems. The floor brush assembly is a crucial component of a vacuum cleaner. It works by moving across the surface to be cleaned. However, the close contact between the floor brush assembly and the surface during cleaning, with a small gap between the bottom surface of the brush assembly and the surface, not only affects airflow efficiency but also increases the resistance to movement, making it relatively strenuous to use. To address the aforementioned issues, a utility model with authorization announcement number CN212066612U discloses a floor brush air intake structure for a vacuum cleaner, including a floor brush head, a connecting pipe, and a fixed connecting seat connected to the vacuum cleaner's connecting pipe assembly. The floor brush head and the fixed connecting seat are hinged. The bottom front end of the floor brush head has two symmetrical air intake grooves on the left and right sides. The rear end of the floor brush head is an air chamber with an air outlet channel in the middle. The air intake grooves communicate with the air outlet channel, and the connecting pipe is fixed at the air outlet channel opening. In this technical solution, air is simultaneously introduced through the two air intake grooves, converges into the air chamber, and is concentrated at the air intake pipe of the air chamber. Finally, the dust is sucked into the connecting pipe through the air outlet. In effect, it is a structure with suction from both sides and air intake in the middle, which improves the air intake efficiency of the device. However, existing vacuum cleaners rely solely on simple dust cups or filters for filtration, which has limited effectiveness in filtering fine dust and particles. The filtered air is mostly discharged directly outside the device, causing incompletely filtered dust or particles to re-enter the environment, resulting in pollution and affecting the cleaning efficiency of the vacuum cleaner. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a vacuum cleaner with a floor brush assembly, wherein a first air inlet and a first air outlet are connected through a dust collection chamber, so that the air discharged from the first air outlet can re-enter the air inlet channel and the main unit through the first air inlet for secondary filtration, thereby improving the cleaning efficiency of the vacuum cleaner.

[0004] This application provides a vacuum cleaner with a floor brush assembly, including a main unit and a floor brush assembly. The floor brush assembly is provided with a first air inlet, a first air outlet, an air inlet channel, and an air outlet channel. The main unit is provided with a second air inlet and a second air outlet. The first air inlet and the second air inlet are connected by an air inlet channel. The first air outlet and the second air outlet are connected by an air outlet channel. The bottom of the floor brush assembly is provided with an inwardly recessed dust collection chamber. The first air inlet and the first air outlet are both located on the dust collection chamber and are connected through the dust collection chamber. The first air inlet can draw the gas discharged from the first air outlet into the air inlet channel through the dust collection chamber.

[0005] In this technical solution, the main unit is equipped with a motor unit, which creates negative pressure to allow the first air inlet to draw in dust-laden air. The floor brush assembly is in contact with the surface to be cleaned, and a cavity is formed between the floor brush assembly and the surface to be cleaned through an inwardly recessed dust collection chamber. The first air inlet is located on the dust collection chamber, and can directly draw dust-laden air from the dust collection chamber into the air inlet channel. At least one of the main unit and the floor brush assembly is equipped with a filter chamber, which is connected to the front and / or rear end of the air inlet channel. The air inlet channel filters the dust-laden air through the filter chamber and contains the filtered dust and impurities. The filtered air is discharged through the air outlet channel to the first air outlet. The first air outlet is located on the dust collection chamber, and the air discharged from the first air outlet directly enters the dust collection chamber. When the vacuum cleaner is running, the first air inlet can draw in the dust-laden air. The gas discharged from the first air outlet in the dust chamber is re-inhaled into the air inlet channel, allowing for secondary filtration and improving the vacuum cleaner's filtration efficiency. This prevents the gas discharged from the first air outlet from still carrying dust or particles, reducing dust leakage during the discharge process and minimizing environmental pollution. Furthermore, by connecting the first air outlet to the first air inlet, the first gas channel, the main unit, and the second gas channel form a circulating gas flow path. The gas has a longer flow path throughout the device, achieving efficient dust settling through inertial separation and centrifugal force, without relying on filter materials. This eliminates the need for traditional filter cotton, HEPA filters, and other filter consumables in the vacuum cleaner's filter chamber. Users do not need to frequently replace or clean filter consumables, significantly reducing operating costs and minimizing the environmental burden caused by discarded filter consumables, making it more practical.

[0006] As an improvement, the first air inlet and the first air outlet are arranged opposite each other on the dust collection chamber. In this technical solution, the first air inlet and the first air outlet are located on opposite sides of the dust collection chamber, so that the gas discharged from the first air outlet can be directly drawn into the first gas channel by the first air inlet. The gas discharged from the first air outlet stays in the dust collection chamber for a shorter time, avoiding leakage of gas still containing dust or particles into the environment. This ensures that the finally discharged gas undergoes multiple filtrations before being discharged, improving the overall filtration efficiency of the machine.

[0007] As an improvement, both the first air inlet and the first air outlet are inclined downwards. In this technical solution, the first air inlet is inclined downwards, making it closer to the ground or the surface to be cleaned, thus more efficiently sucking in dust from the ground or the surface to be cleaned. Similarly, the first air outlet is inclined downwards, making the exhaust gas closer to the ground or the surface to be cleaned, which is more conducive to being sucked in by the first air inlet, thereby improving the overall dust collection and filtration efficiency of the machine.

[0008] As an improvement, the dust collection chamber has a trapezoidal structure, with the first air inlet located on one side wall of the dust collection chamber and the first air outlet located on the other side wall. In this technical solution, the trapezoidal structure of the dust collection chamber allows its cross-sectional area to gradually increase from top to bottom. This trapezoidal structure guides airflow more smoothly into the first air inlet. The first air inlet and first air outlet are located on opposite sides of the dust collection chamber, and both are angled downwards, further optimizing the airflow path. This allows the first air inlet to directly draw the gas discharged from the first air outlet into the air intake channel, further preventing incompletely filtered gas from leaking into the environment. The design of the positions of the first air inlet and first air outlet improves the overall dust collection and filtration efficiency of the machine.

[0009] As an improvement, the first air outlet is in a straight line shape. In this technical solution, the first air outlet is elongated and positioned along the bottom of the side wall of the dust collection chamber, which ensures a uniform distribution of airflow during discharge, reduces airflow concentration, optimizes the airflow discharge path, and thus improves gas discharge efficiency.

[0010] As an improvement, the first air outlet is equipped with a guide vane, which divides the first air outlet into multiple outlets. In this technical solution, the first air outlet is in a straight line shape. By setting the guide vane to divide the first air outlet into multiple outlets, a more uniform airflow distribution can be achieved, reducing airflow concentration, optimizing the airflow path, and the guide vane has a flow guiding effect on the gas, reducing airflow turbulence during discharge, improving airflow stability, and thus improving gas discharge efficiency.

[0011] As an improvement, the air outlet channel includes a first air outlet channel and a second air outlet channel. One end of the first air outlet is connected to the second air outlet through the first air outlet channel, and the other end of the first air outlet is connected to the second air outlet through the second air outlet channel. In this technical solution, at least two air outlet channels are provided. The gas discharged from the second air outlet of the main unit is collected at the first air outlet through the first air outlet channel and the second air outlet channel, respectively. This allows the airflow to pass through two different paths when discharged, reducing airflow resistance and turbulence within the channels, improving airflow transmission efficiency, and the dual-channel design can improve airflow stability and reduce vibration and noise caused by airflow impact.

[0012] As an improvement, the first and second air outlet channels are symmetrically distributed within the floor brush assembly, located on both sides of the assembly. This symmetrical distribution of the first and second air outlet channels in this technical solution results in more uniform gas flow within the floor brush assembly, reducing airflow turbulence and resistance. Furthermore, the compact distribution of the first and second air outlet channels on both sides of the assembly improves space utilization.

[0013] As an improvement, the first air inlet is located on the side of the dust collection chamber closer to the main unit, and the first air outlet is located on the side of the dust collection chamber farther from the main unit. In this technical solution, setting the first air inlet closer to the main unit allows for more direct reception of the negative pressure generated by the main unit, enabling the air drawn in through the first air inlet to enter the air intake channel for filtration more quickly, thus improving dust collection efficiency. Setting the first air outlet farther from the main unit results in a longer path in the air outlet channel, reducing airflow turbulence during exhaust and improving gas exhaust efficiency.

[0014] As an improvement, the bottom of the floor brush assembly is fitted with a seal adapted to the dust collection chamber, and the seal is arranged around the outer periphery of the dust collection chamber. In this technical solution, the dust collection chamber, through the surrounding seal, can form a local sealed space with the ground or other surfaces to be cleaned, preventing gas leakage, improving dust collection efficiency, and through the setting of the seal, airflow can only enter the dust collection chamber through the first air inlet, reducing airflow turbulence, optimizing the airflow path, further improving dust collection efficiency, and the seal can also prevent incompletely filtered gas from leaking into the environment, reducing environmental pollution. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a vacuum cleaner with a floor brush assembly according to this application.

[0016] Figure 2 This is a front view schematic diagram of a vacuum cleaner with a floor brush assembly according to this application.

[0017] Figure 3 For this application Figure 2 Cross-sectional view along the AA direction.

[0018] Figure 4 For this application Figure 3 A schematic diagram of gas flow within the structure shown.

[0019] Figure 5 This is a three-dimensional structural diagram of the floor brush component in this application.

[0020] The diagram shows: 1. Main unit; 11. Second air inlet; 12. Second air outlet; 2. Floor brush assembly; 21. First air inlet; 22. First air outlet; 221. Air guide plate; 23. Air inlet channel; 24. Air outlet channel; 241. First air outlet channel; 242. Second air outlet channel; 25. Dust collection chamber; 3. Sealing element. Detailed Implementation

[0021] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0022] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0023] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and constructions may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0024] Furthermore, it should be noted that the terms "installation," "setting," "equipped with," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components; they can refer to a direct installation on another component or the possible presence of another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figures 1 to 5 As shown, this application discloses a vacuum cleaner with a floor brush assembly, including a main unit 1 and a floor brush assembly 2. The floor brush assembly 2 is provided with a first air inlet 21, a first air outlet 22, an air inlet channel 23, and an air outlet channel 24. The main unit 1 is provided with a second air inlet 11 and a second air outlet 12. The first air inlet 21 and the second air inlet 11 are connected by the air inlet channel 23, and the first air outlet 22 and the second air outlet 12 are connected by the air outlet channel 24. The bottom of the floor brush assembly 2 is provided with an inwardly recessed dust collection chamber 25. A motor unit is provided inside the main unit 1. The motor unit creates a negative pressure, allowing the first air inlet 21 to... The floor brush assembly 2 is able to suck in dusty gas. The floor brush assembly 2 is in contact with the surface to be cleaned. The floor brush assembly 2 forms a cavity between itself and the surface to be cleaned through the inwardly recessed dust collection chamber 25. The first air inlet 21 is provided on the dust collection chamber 25. The first air inlet 21 can directly suck the dusty air in the dust collection chamber 25 into the air inlet channel 23. At least one of the main unit 1 and the floor brush assembly 2 is provided with a filter chamber. The filter chamber is connected to the front end and / or the rear end of the air inlet channel 23. The air inlet channel 23 filters the dusty gas through the filter chamber and contains the filtered dust and impurities. The filtered gas is discharged from the device through the air outlet channel 24 to the first air outlet 22.

[0026] like Figures 1 to 5As shown, both the first air inlet 21 and the first air outlet 22 are located on and connected to the dust collection chamber 25. The gas discharged from the first air outlet 22 directly enters the dust collection chamber 25. When the vacuum cleaner is running, the first air inlet 21 can re-draw the gas discharged from the first air outlet 22 into the air inlet channel 23, allowing for secondary filtration of the gas. This improves the vacuum cleaner's filtration efficiency, prevents the gas discharged from the first air outlet 22 from still carrying dust or particles, reduces dust leakage during the discharge process, and minimizes environmental pollution. On the other hand, by connecting the first air outlet 22 with the first air inlet 21, the first gas channel, the main unit 1 and the second gas channel form a circulating gas flow path. The gas has a longer flow path inside the entire device, and efficient dust settling is achieved by using inertial separation and centrifugal force without relying on filter materials. This eliminates the need for filter cotton, HEPA filters and other filter consumables in the traditional vacuum cleaner filter chamber. Users do not need to frequently replace or clean filter consumables, which significantly reduces the cost of use and reduces the environmental burden caused by waste filter consumables, making it more practical.

[0027] More specifically, such as Figure 1 and Figure 5 As shown, the first air inlet 21 and the first air outlet 22 are distributed opposite to each other on the dust collection chamber 25. The first air inlet 21 and the first air outlet 22 are located on opposite sides of the dust collection chamber 25, so that the gas discharged from the first air outlet 22 can be directly drawn into the first gas channel by the first air inlet 21. The gas discharged from the first air outlet 22 stays in the dust collection chamber 25 for a shorter time, avoiding the leakage of gas still containing dust or particles into the environment. This ensures that the gas discharged in the end has undergone multiple filtrations before being discharged, thus improving the filtration efficiency of the whole machine.

[0028] More specifically, such as Figure 1 and Figure 5 As shown, both the first air inlet 21 and the first air outlet 22 are inclined downwards. The first air inlet 21 is inclined downwards so that it is closer to the ground or the surface to be cleaned, which can more efficiently suck up dust from the ground or the surface to be cleaned. The first air outlet 22 is inclined downwards so that the air discharged from the first air outlet 22 is closer to the ground or the surface to be cleaned, which is more conducive to being sucked in by the first air inlet 21, thereby improving the overall dust collection efficiency and filtration efficiency of the machine.

[0029] More specifically, such as Figure 1 and Figure 5As shown, the dust collection chamber 25 has a trapezoidal cavity structure. The first air inlet 21 is located on one side wall of the dust collection chamber 25, and the first air outlet 22 is located on the other side wall of the dust collection chamber 25. The trapezoidal cavity structure of the dust collection chamber 25 makes the cross-sectional area of ​​the dust collection chamber 25 gradually increase from top to bottom. The trapezoidal cavity structure can guide the airflow to enter the first air inlet 21 more smoothly. The first air inlet 21 and the first air outlet 22 are located on opposite sides of the dust collection chamber 25, and both the first air inlet 21 and the first air outlet 22 are inclined downwards, which further optimizes the airflow path. This allows the first air inlet 21 to directly draw the gas discharged from the first air outlet 22 into the air intake channel 23, further avoiding the leakage of incompletely filtered gas into the environment. Through the positional design of the first air inlet 21 and the first air outlet 22, the dust collection efficiency and filtration efficiency of the whole machine are improved.

[0030] More specifically, such as Figure 1 and Figure 5 As shown, the first air outlet 22 is in the shape of a straight line. The shape of the first air outlet 22 is long and narrow. The first air outlet 22 is set along the bottom of the side wall of the dust collection chamber 25, so that the airflow has a uniform distribution when it is discharged, reducing the concentration of airflow, thereby optimizing the discharge path of airflow and improving the discharge efficiency of gas.

[0031] More specifically, such as Figure 3 As shown, the first air outlet 22 is provided with a guide plate 221, which divides the first air outlet 22 into multiple outlets. The first air outlet 22 is in a straight line shape. By setting the guide plate 221 to divide the first air outlet 22 into multiple outlets, a more uniform airflow distribution can be achieved, reducing the concentration of airflow and optimizing the airflow path. In addition, the guide plate 221 has a flow guiding effect on the gas, reducing the turbulence of the airflow during discharge, improving the stability of the airflow, and thus improving the gas discharge efficiency.

[0032] More specifically, such as Figure 3 and Figure 4 As shown, the air outlet channel 24 includes a first air outlet channel 241 and a second air outlet channel 242. One end of the first air outlet 22 is connected to the second air outlet 12 through the first air outlet channel 241, and the other end of the first air outlet 22 is connected to the second air outlet 12 through the second air outlet channel 242. At least two air outlet channels 24 are provided. The gas discharged from the second air outlet 12 of the main unit 1 is collected at the first air outlet 22 through the first air outlet channel 241 and the second air outlet channel 242 respectively. This allows the airflow to pass through two different paths when it is discharged, reducing the resistance and turbulence of the airflow in the channel and improving the transmission efficiency of the airflow. The dual-channel design can improve the stability of the airflow and reduce the vibration and noise caused by the airflow impact.

[0033] More specifically, such as Figure 3 and Figure 4 As shown, the first air outlet channel 241 and the second air outlet channel 242 are symmetrically distributed within the floor brush assembly 2. The first air outlet channel 241 and the second air outlet channel 242 are located on both sides of the floor brush assembly 2. The symmetrical distribution of the first air outlet channel 241 and the second air outlet channel 242 makes the air flow within the floor brush assembly 2 more uniform, reducing airflow turbulence and resistance. The distribution of the first air outlet channel 241 and the second air outlet channel 242 on both sides of the floor brush assembly 2 is more compact and has a higher space utilization rate.

[0034] More specifically, such as Figure 1 and Figure 3 As shown, the first air inlet 21 is located on the side of the dust collection chamber 25 closer to the main unit 1, and the first air outlet 22 is located on the side of the dust collection chamber 25 farther away from the main unit 1. Setting the first air inlet 21 closer to the main unit 1 allows it to receive the negative pressure generated by the main unit 1 more directly, enabling the air drawn in by the first air inlet 21 to enter the air intake channel 23 for filtration more quickly, thereby improving dust collection efficiency. Setting the first air outlet 22 farther away from the main unit 1 makes the path of the air outlet channel 24 longer, reducing the turbulence of the airflow during discharge and improving the discharge efficiency of the gas.

[0035] More specifically, such as Figure 1 and Figure 5 As shown, the bottom of the floor brush assembly 2 is equipped with a sealing element 3 that is adapted to the dust collection chamber 25. The sealing element 3 is arranged around the outer periphery of the dust collection chamber 25. Through the surrounding sealing element 3, the dust collection chamber 25 can form a local sealed space with the ground or other surfaces to be cleaned, preventing gas leakage and improving dust collection efficiency. Furthermore, through the setting of the sealing element 3, the airflow can only enter the dust collection chamber 25 through the first air inlet 21, reducing airflow turbulence, optimizing the airflow path, and further improving dust collection efficiency. The sealing element 3 can also prevent incompletely filtered gas from leaking into the environment, reducing environmental pollution.

[0036] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A vacuum cleaner with a floor brush assembly, characterized in that, It includes a main body (1) and a floor brush assembly (2). The floor brush assembly (2) is provided with a first air inlet (21), a first air outlet (22), an air inlet channel (23) and an air outlet channel. The main body (1) is provided with a second air inlet (11) and a second air outlet (12). The first air inlet (21) and the second air inlet (11) are connected through the air inlet channel (23), and the first air outlet (22) and the second air outlet (12) are connected through the air outlet channel (24). A dust collection cavity (25) recessed inward is provided at the bottom of the floor brush assembly (2). The first air inlet (21) and the first air outlet (22) are both arranged on the dust collection cavity (25) and are connected through the dust collection cavity (25). The first air inlet (21) can suck the gas discharged from the first air outlet (22) into the air inlet channel (23) through the dust collection cavity (25).

2. The vacuum cleaner with a floor brush assembly according to claim 1, wherein The first air inlet (21) and the first air outlet (22) are oppositely distributed on the dust collection cavity (25).

3. The vacuum cleaner with a floor brush assembly according to claim 1, wherein Both the first air inlet (21) and the first air outlet (22) are inclined downward.

4. The vacuum cleaner with a floor brush assembly according to claim 1 or 2, characterized in that, The dust collection cavity (25) has a trapezoidal cavity structure. The first air inlet (21) is located on the side wall of one side of the dust collection cavity (25), and the first air outlet (22) is located on the side wall of the other side of the dust collection cavity (25).

5. The vacuum cleaner with a floor brush assembly according to claim 1 or 2, characterized in that, The first air outlet (22) is in a linear shape.

6. The vacuum cleaner with a floor brush assembly according to claim 5, wherein A wind guide plate (221) is provided at the first air outlet (22), and the wind guide plate (221) divides the first air outlet (22) into multiple outlets.

7. The vacuum cleaner with a floor brush assembly according to claim 5, wherein The air outlet channel (24) includes a first air outlet channel (241) and a second air outlet channel (242). One end of the first air outlet (22) is connected to the second air outlet (12) through the first air outlet channel (241), and the other end of the first air outlet (22) is connected to the second air outlet (12) through the second air outlet channel (242).

8. The vacuum cleaner with a floor brush assembly according to claim 7, characterized in that, The first air outlet channel (241) and the second air outlet channel (242) are symmetrically distributed in the floor brush assembly (2), and the first air outlet channel (241) and the second air outlet channel (242) are located on both sides of the floor brush assembly (2).

9. The vacuum cleaner with a floor brush assembly according to claim 2, wherein The first air inlet (21) is located on the side of the dust collection cavity (25) close to the main body (1), and the first air outlet (22) is located on the side of the dust collection cavity (25) far from the main body (1).

10. The vacuum cleaner with a floor brush assembly according to claim 1, wherein, A seal (3) adapted to the dust collection cavity (25) is installed at the bottom of the floor brush assembly (2), and the seal (3) is wound around the outer periphery of the dust collection cavity (25).

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