Dust collection device

Abstract

The utility model discloses a dust collection device which comprises a main machine and a floor brush assembly connected with the main machine, at least one of the main machine and the floor brush assembly is provided with a filtering bin, a motor unit is installed in the main machine, and the floor brush assembly is provided with a first air inlet and a first air outlet. The motor unit is provided with a second air inlet and a second air outlet, the first air inlet, the filter bin and the second air inlet are sequentially communicated to form a first flow channel, and the second air outlet is communicated with the first air outlet to form a second flow channel. Gas sucked by the first air inlet sequentially passes through the first flow channel and the second flow channel and then is exhausted through the first air outlet, the first air outlet is communicated with the first flow channel, so that the first flow channel and the second flow channel form a circulating flow channel, the gas flowing path is prolonged, the efficient filtering effect is achieved, and existing filtering consumables are omitted.

Description

Technical Field

[0001] This application relates to the field of cleaning device technology, and more specifically to a vacuuming device. Background Technology

[0002] The basic principle of a vacuum cleaner is to use a motor to generate negative pressure, sucking in dust and debris from the air and collecting them in a dust cup, thereby achieving the purpose of cleaning floors, furniture surfaces, and other object surfaces. Compared with traditional tools such as brooms, vacuum cleaners greatly improve cleaning efficiency and are widely used in cleaning work in homes, commercial spaces, and industrial environments. For example, the utility model patent with authorization announcement number CN209048029U discloses a push rod vacuum cleaner, including a push rod handle, a housing, a power switch, and a floor brush. The housing has a connecting rod, and the push rod handle is connected to the connecting rod. A motor is located inside the housing and is electrically connected to the power switch. A dust cup is located at the bottom of the housing and is snapped into the housing. An air inlet pipe is located in the middle of the bottom of the dust cup, and a dust collection part is formed between the outer wall of the air inlet pipe and the inner wall of the dust cup. A HEPA filter holder is provided between the air inlet pipe and the motor, and a HEPA filter is installed on the HEPA filter holder. The floor brush includes an air outlet duct that is snapped into and connected to the air inlet duct. In this technical solution, dusty air enters the dust cup through the floor brush, passes through a HEPA filter, and the dust remains in the dust cup and falls into the dust collection section at the bottom of the dust cup. The dust cup relies on the HEPA filter as the main filter medium. Although the HEPA filter can efficiently filter fine particles in the air, its lifespan is limited and it is easily clogged by dust, leading to a decrease in suction power. Users need to replace or clean the HEPA filter regularly, increasing usage costs and maintenance frequency. Improper cleaning may also affect the filtration effect. Existing vacuum cleaners generally rely on filter cotton, HEPA filters, and other filter consumables to achieve efficient dust separation and air purification. Filter cotton, HEPA filters, and other filter consumables will gradually become clogged during use and need to be replaced regularly. Frequent replacement of filter consumables generates a large amount of waste, which burdens the environment. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a dust collection device that extends the gas flow path by setting up a first flow channel and a second flow channel for circulation, thereby achieving a high-efficiency filtration effect. By optimizing the gas flow channel design, the existing filter consumables are eliminated, resulting in lower operating costs and easier and more convenient use.

[0004] This application provides a vacuum cleaner device, including a main unit and a floor brush assembly connected to the main unit. At least one of the main unit and the floor brush assembly is provided with a filter chamber. A motor unit is installed in the main unit. The floor brush assembly is provided with a first air inlet and a first air outlet. The motor unit is provided with a second air inlet and a second air outlet. The first air inlet, the filter chamber, and the second air inlet are sequentially connected to form a first flow channel. The second air outlet is connected to the first air outlet to form a second flow channel. The gas drawn in by the first air inlet passes through the first flow channel and the second flow channel in sequence and is discharged through the first air outlet. The first air outlet is connected to the first flow channel so that the first flow channel and the second flow channel constitute a circulating flow channel.

[0005] In this technical solution, by setting up a first flow channel and a second flow channel, smooth airflow is ensured, airflow resistance is reduced, and the dust collection efficiency of the device is improved. Gas enters from the first air inlet of the floor brush assembly, passes through the filter chamber, enters the second air inlet of the motor unit, and is then discharged from the second air outlet, finally exiting from the first air outlet of the floor brush assembly. Both the first air inlet for drawing gas into the device and the first air outlet for discharging gas outside the device are located on the floor brush assembly. The first air outlet is connected to the first flow channel. The gas discharged from the first air outlet is not directly discharged to the outside, but re-enters the first flow channel through the second flow channel for further filtration. The first and second flow channels form a circulating flow channel, creating a closed loop of "airflow encirclement," which extends the gas flow path within the device. The gas has a longer path throughout the device, achieving efficient dust settling through inertial separation and centrifugal force, without relying on filter materials. Filter chambers are installed on the main unit and / or the floor brush assembly, meaning there is at least one filter chamber. The filter chamber is mainly used to filter and contain dust and impurities. By optimizing the gas flow channel design, traditional filter cotton, HEPA filters, and other filter consumables are eliminated. 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, resulting in better practicality.

[0006] As an improvement, the main unit is provided with two parallel channels extending vertically, namely a first channel and a second channel. The first channel, as part of the first flow channel, is connected at its lower end to the first air inlet and at its upper end to the second air inlet. The second channel, as part of the second flow channel, is connected at its upper end to the second air outlet and at its lower end to the first air outlet. In this technical solution, a first and a second flow channel are added to the main unit. The first flow channel connects the first and second air inlets, and the second flow channel connects the second and first air outlets. Both the first and second flow channels extend vertically and are arranged in parallel. The first and second flow channels are independent of each other within the main unit, yet they work closely together, providing a clear path for the orderly flow of air, making the gas flow smoother. Furthermore, within the limited space of the main unit, the gas flow path is extended as much as possible, improving filtration efficiency. The channel distribution is more reasonable, saving space in the main unit.

[0007] As an improvement, a first connecting pipe and a second connecting pipe are installed between the main unit and the floor brush assembly. The lower end of the second channel is connected to the first air outlet via the first connecting pipe, and the first air inlet is connected to the lower end of the second channel via the second connecting pipe. In this technical solution, the first connecting pipe, as a component of the first flow channel, connects the lower end of the second channel to the first air outlet of the floor brush assembly, thereby expelling gas from the main unit. The second connecting pipe, as a component of the second flow channel, connects the first air inlet of the floor brush assembly to the lower end of the second channel, thereby transporting dust-laden air drawn in by the floor brush assembly into the main unit. The arrangement of the first and second connecting pipes makes the use of the vacuum cleaner more flexible, especially suitable for use with upright vacuum cleaners. The length and direction of each connecting pipe can be adjusted as needed, ensuring smooth airflow, reducing airflow resistance, and improving the vacuuming efficiency of the device.

[0008] As an improvement, the first connecting pipe is fitted over the second connecting pipe, and there is a gap between the outer wall of the second connecting pipe and the inner wall of the first connecting pipe for gas flow. In this technical solution, the first connecting pipe serves as the outer pipe and the second connecting pipe serves as the inner pipe, forming a sleeve-type structure. There is an annular gap between the outer wall of the second connecting pipe and the inner wall of the first connecting pipe, which connects the lower end of the second channel and the first air outlet, thus forming a partial second flow channel. Gas enters the device from the first air inlet of the floor brush assembly, is transported to the lower end of the first channel through the second connecting pipe, enters the main unit, and sequentially passes through the first channel, the first air inlet, the second air outlet, and the lower end of the second channel before being discharged. The discharged gas enters the gap between the first and second connecting pipes and is finally discharged through the first air outlet of the floor brush assembly. The sleeve-type structure design integrates the functions of the first and second connecting pipes into a compact space, reducing the overall volume and making the whole machine structure more compact and optimizing the spatial layout. It is especially suitable for use with upright vacuum cleaners, effectively reducing the overall size of the machine.

[0009] As an improvement, a first connector is provided between the first connecting pipe and the lower end of the second channel. The first connecting pipe is connected to the lower end of the second channel through the first connector. The first connector has a conical structure. The gas discharged from the lower end of the second channel enters the first connecting pipe through the guiding effect of the first connector. In this technical solution, the first connector adopts a conical structure, connecting the lower end of the second channel and the first connecting pipe to form a gradually narrowing transition channel. The first connector can guide the airflow from the wider lower end of the second channel through the conical structure, gradually narrowing it, accelerating and stabilizing its entry into the first connecting pipe, reducing airflow turbulence and resistance. The conical structure of the first connector can also optimize the transition of airflow from the lower end of the second channel to the annular gap (second flow channel), separating the lower end of the first channel and the lower end of the second channel to avoid airflow interference between the inner and outer pipes, and ensuring that the discharged gas is evenly dispersed in the annular gap between the first connecting pipe and the second connecting pipe. The conical structure of the first connector occupies little space and is integrated with the sleeve structure, further optimizing the spatial distribution.

[0010] As an improvement, a second connector is fitted inside the first connector, and the second connecting pipe is connected to the lower end of the first channel through the second connector. In this technical solution, the second connector is mainly used to connect the second connecting pipe to the lower end of the first channel. The first connector and the second connector are fitted together to form a partition structure, separating the lower end of the first channel from the lower end of the second channel. This makes the first channel and the second channel independent channels connected only through the motor unit, and the lower ends of the first channel and the lower ends of the second channel do not interfere with each other. This optimizes the airflow path, improves gas flow efficiency, and the fitted design of the first connector and the second connector makes the entire structure more compact, reduces space occupation, and improves structural stability.

[0011] As an improvement, the lower end of the second connector is provided with a first through hole for connecting to the second connecting pipe, and the upper end of the second connector is provided with a second through hole and a third through hole. The second through hole is used to connect the second connecting pipe and the lower end of the first channel, and the third through hole is used to connect the lower ends of the first connector and the second channel. In this technical solution, the first and second through holes cooperate to connect the second connecting pipe and the first channel, and are responsible for introducing the dust-laden air in the second connecting pipe into the first channel. The third through hole cooperates with the first connector to connect the first connecting pipe and the second channel, and is responsible for introducing gas from the second channel into the annular gap between the first and second connecting pipes. The three through holes achieve physical separation of the airflow path, ensuring that the first and second flow channels are independent of each other and avoiding cross-interference. The first and second connectors cooperate to form a three-way structure, integrating the functions that traditionally require multiple independent interfaces into a single connection structure, simplifying the pipeline layout, reducing redundant pipes, and helping to reduce the overall size of the machine. The structural design is more ingenious.

[0012] As an improvement, the lower end of the second connector is snapped into the end of the second connecting pipe through the first through hole, and the upper end of the second connector is locked to the first connector by fasteners; the lower end of the first connector is snapped into the end of the first connecting pipe. In this technical solution, the second connector and the second connecting pipe are connected by snap-fit, and the ends of the second connector and the second connecting pipe are stably connected using structures such as slots and rings, ensuring the sealing and convenience of the connection ends. The fasteners used to fix the second connector and the first connector enhance the stability and reliability of the connection, preventing loosening due to vibration or other external forces during use. Installation is convenient and the sealing is good. The first connector and the first connecting pipe are connected by snap-fit, and the ends of the first connector and the first connecting pipe are stably connected using structures such as slots and rings, ensuring the sealing and convenience of the connection ends. Installation is simple and reliable.

[0013] As an improvement, the main unit is equipped with a first dust cup, which contains the filter chamber. The first channel, the first dust cup, and the second air inlet are sequentially connected. In this technical solution, the first dust cup is configured as a filter chamber, which separates and collects dust. The first dust cup is installed on the main unit and mainly connects the first channel and the motor unit. The first air inlet, the first channel, the first dust cup, and the second air inlet are sequentially connected to form a first flow channel. The second air outlet, the second channel, and the first air outlet are sequentially connected to form a second flow channel, making the gas flow more orderly, reducing airflow turbulence and resistance, and improving filtration efficiency.

[0014] As an improvement, the floor brush assembly is provided with a second dust cup, the second dust cup is provided with the filter chamber, the second dust cup is provided with a first inlet and a first outlet, the first air inlet is connected to the first inlet, the first outlet is connected to the lower end of the first channel, and the first air inlet, the second dust cup, the first channel, the first dust cup and the second air inlet are sequentially connected to form a first flow channel. In this technical solution, there are two filter chambers, including a first dust cup located on the main unit and a second dust cup located on the floor brush assembly. In this solution, the first outlet of the second dust cup is connected to the lower end of the first channel through a second connecting pipe. The first air inlet, the second dust cup, the second connecting pipe, the first channel, and the second air inlet are sequentially connected to form a first flow channel. The lower end of the second channel is connected to the first air outlet through an annular gap between the first and second connecting pipes. The second air outlet, the lower end of the second channel, the first connecting pipe, and the first air outlet are sequentially connected to form a second flow channel. The gas passes sequentially through the floor brush assembly, the second dust cup, the first dust cup, and the motor unit before returning to the floor brush assembly for discharge. The second dust cup is mainly responsible for the initial filtration of the inhaled gas, while the first dust cup is used for secondary filtration of the inhaled gas. The first and second dust cups form a dual filtration system, which improves the overall filtration efficiency of the machine, eliminates traditional filter cotton, HEPA filters, and other filter consumables, and reduces operating costs.

[0015] As an improvement, the first dust cup is detachably installed on the main unit, and the second dust cup is detachably installed on the floor brush assembly; a first filter screen is installed inside the second dust cup, and the first filter screen is located near the first outlet, so that the gas in the second dust cup is filtered by the first filter screen and discharged through the first outlet. In this technical solution, both the first and second dust cups are detachable, facilitating user disassembly and cleaning. This avoids the problem of traditional vacuum cleaner dust cups being difficult to disassemble and clean, reducing the risk of dust accumulation and clogging. The connection between the second dust cup and the floor brush assembly includes, but is not limited to, snap-fit, knobs, or other quick-release structures, ensuring a secure installation and easy disassembly. Users can easily remove the second dust cup from the floor brush assembly, reducing the time and effort required to clean it and improving the user experience. The air drawn in by the first air inlet of the floor brush assembly enters the second dust cup through the first inlet. By setting a first filter screen inside the second dust cup, dust and impurities in the air are intercepted by the first filter screen. The design of the first filter screen near the first outlet ensures that the air must undergo preliminary filtration before being discharged, removing larger dust and impurities, thereby effectively separating dust and impurities in the air and preventing unfiltered air from being directly discharged from the first air outlet, thus improving filtration efficiency.

[0016] As an improvement, a first guide plate is provided inside the second dust cup, and the first guide plate is located between the first inlet and the first outlet to separate the first inlet and the first outlet. In this technical solution, the first guide plate is located between the first inlet and the first outlet, which serves to separate the first inlet and the first outlet, prolong the flow path of the airflow in the second dust cup, prevent the airflow from the first inlet from being directly discharged through the first outlet, and improve the filtration efficiency.

[0017] As an improvement, the second dust cup is further provided with a second guide plate and a third guide plate. One end of the first guide plate is connected to the second guide plate, and the other end of the first guide plate is connected to the third guide plate. A first opening facing the first inlet is formed between the second guide plate and the third guide plate. The first guide plate, the second guide plate and the third guide plate are either separate structures or integrally formed structures. In this technical solution, the first, second, and third guide plates work together to more precisely control the airflow path. One end of the first guide plate is connected to the second guide plate, and the other end is connected to the third guide plate, forming an integrated guide structure that enhances the stability of the guide plates. Through the design of multi-stage guide plates, the airflow distribution is further optimized, allowing the airflow to stay in the second dust cup for a longer time and achieving better filtration. The first opening faces the first inlet, and the first, second, and third guide plates form a frame structure that can intercept and accommodate dust and impurities. The gas drawn in by the first inlet is dispersed and intercepted by the first, second, and third guide plates, preventing dust from accumulating at the first outlet in a short time and improving gas discharge efficiency. In this solution, the first, second, and third guide plates are preferably integrally molded, reducing airflow leakage and turbulence between the guide plates, optimizing the airflow path, reducing airflow resistance, reducing the risk of dust leakage, improving filtration efficiency, and enhancing the overall structural stability of the guide plates.

[0018] As an improvement, one end of the second guide plate is connected to the first guide plate, and the other end of the second guide plate is provided with a first baffle formed by bending towards the third guide plate. One end of the third guide plate is connected to the first guide plate, and the other end of the third guide plate is provided with a second baffle formed by bending towards the second guide plate. The first baffle and the second baffle are on the same straight line. In this technical solution, by setting the first baffle and the second baffle facing each other, dust and impurities in the airflow can be effectively blocked, so that dust and impurities are intercepted in the frame structure formed by the first guide plate, the second guide plate and the third guide plate, preventing them from directly entering the subsequent filtration system, thus improving filtration efficiency. The second baffle and the first baffle are on the same straight line, forming a symmetrical structure, ensuring uniform distribution of airflow between the guide plates, reducing airflow turbulence and improving airflow stability. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a dust collection device according to this application.

[0020] Figure 2 This is a cross-sectional view of the dust collection device in Embodiment 2 of this application.

[0021] Figure 3 For this application Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 For this application Figure 2 A schematic diagram of gas flow at point A in the middle.

[0023] Figure 5 This is a cross-sectional view of the host computer in Embodiment 2 of this application.

[0024] Figure 6 This is a schematic diagram of gas flow in the host unit in Embodiment 2 of this application.

[0025] Figure 7 This is an exploded view of the first connecting pipe, the second connecting pipe, the first connector, and the second connector in this application.

[0026] Figure 8 This is a cross-sectional view of the dust collection device in Embodiment 3 of this application.

[0027] Figure 9 For this application Figure 8 A magnified view of a portion of point B in the middle.

[0028] Figure 10 This is a schematic diagram of the exploded structure of the second dust cup in Embodiment 4 of this application.

[0029] Figure 11 This is a schematic diagram of another structure of the second dust cup in Embodiment 4 of this application.

[0030] The diagram shows: 1. Main unit; 11. Motor unit; 111. Second air inlet; 112. Second air outlet; 12. First dust cup; 13. First channel; 14. Second channel; 2. Floor brush assembly; 21. First air inlet; 22. First air outlet; 23. Second dust cup; 231. First inlet; 232. First outlet; 24. First filter screen; 25. First guide plate; 26. Second guide plate; 261. First baffle; 27. Third guide plate; 271. Second baffle; 3. First connecting pipe; 4. Second connecting pipe; 5. First connector; 51. Second seal; 6. Second connector; 61. First through hole; 62. Second through hole; 63. Third through hole; 64. First seal. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Example 1

[0036] like Figures 1 to 7As shown, this application discloses a vacuum cleaner device, including a main unit 1 and a floor brush assembly 2 connected to the main unit 1. At least one of the main unit 1 and the floor brush assembly 2 is provided with a filter chamber. A motor unit 11 is installed inside the main unit 1. The floor brush assembly 2 is provided with a first air inlet 21 and a first air outlet 22. The motor unit 11 is provided with a second air inlet 111 and a second air outlet 112. The first air inlet 21, the filter chamber, and the second air inlet 111 are sequentially connected to form a first flow channel. The second air outlet 112 is connected to the first air outlet. The first air inlet 21 is connected to and forms a second flow channel. The gas drawn in by the first air inlet 21 passes through the first flow channel and the second flow channel in sequence and is discharged through the first air outlet 22. The first air outlet 22 is connected to the first flow channel so that the first flow channel and the second flow channel form a circulating flow channel. The main unit 1 and / or the floor brush assembly 2 are equipped with filter chambers, that is, at least one filter chamber is provided. The filter chamber is mainly used to filter and contain dust and impurities. By setting the first flow channel and the second flow channel, the smooth flow of air is ensured, the airflow resistance is reduced, and the suction power of the device is improved. In terms of dust efficiency, gas enters from the first air inlet 21 of the floor brush assembly 2, passes through the filter chamber, enters the second air inlet 111 of the motor unit 11, and is then discharged from the second air outlet 112, finally exiting from the first air outlet 22 of the floor brush assembly 2. The first air inlet 21 for drawing gas into the device and the first air outlet 22 for expelling gas from the device are both located on the floor brush assembly 2. The first air outlet 22 is connected to the first flow channel. The gas discharged from the first air outlet 22 is not directly discharged to the outside, but re-enters the first flow channel through the second flow channel for further filtration. The first and second flow channels form a circulating flow channel, forming a closed loop of "airflow circling". The gas has a longer flow path inside the entire device, achieving efficient dust settling by utilizing inertial separation and centrifugal force, without relying on filter materials. By optimizing the gas flow channel design, traditional filter cotton, HEPA filters and other filter consumables are eliminated. Users do not need to frequently replace or clean filter consumables, significantly reducing operating costs and reducing the environmental burden caused by discarded filter consumables, making it more practical.

[0037] More specifically, such as Figure 2 and Figure 3 As shown, the bottom surface of the floor brush assembly 2 has a recessed portion, and the first air inlet 21 is located on the recessed portion. During movement, the floor brush assembly 2 comes into contact with the surface to be cleaned, forming a cavity between the recessed portion and the surface. The first air inlet 21 draws dust-laden air from the surface to be cleaned into the first flow channel through this cavity. Figure 3As shown, in this scheme, the first air outlet 22 can be set on the concave portion. More specifically, the first air outlet 22 can be set at any position such as the top surface or side wall of the concave portion. The first air outlet 22 is connected to the first air inlet 21 of the first flow channel through the concave portion. The gas discharged from the first air outlet 22 enters the concave portion and is then drawn into the first flow channel through the first air outlet 22, thereby realizing airflow circulation and improving filtration efficiency. On the other hand, a portion of the first flow channel is formed between the first air inlet 21 and the filter chamber. The first air outlet 22 can be connected to this portion of the first flow channel, so that the gas discharged from the first air outlet 22 directly enters the first flow channel and is then filtered by the filter chamber, thereby improving filtration efficiency. The specific setting position of the first air outlet 22 includes, but is not limited to, the aforementioned types. It is mainly used to connect the first flow channel and the second flow channel, which will not be elaborated further in this application.

[0038] More specifically, such as Figures 3 to 6 As shown, the main unit 1 has two parallel channels extending vertically. These two parallel channels are a first channel 13 and a second channel 14. The first channel 13 is part of the first flow channel, with its lower end connected to the first air inlet 21 and its upper end connected to the second air inlet 111. The second channel 14 is part of the second flow channel, with its upper end connected to the second air outlet 112 and its lower end connected to the first air outlet 22. The addition of the first and second flow channels to the main unit 1... The flow channels are configured such that the first flow channel connects the first air inlet 21 and the second air inlet 111, and the second flow channel connects the second air outlet 112 and the first air outlet 22. Both the first and second flow channels extend vertically and are arranged side by side. The first and second flow channels are independent of each other within the main unit 1, but they are closely coordinated, providing a clear path for the orderly flow of air, making the gas flow smoother, and extending the gas flow path as much as possible within the limited space of the main unit 1, improving filtration efficiency, making the channel distribution more reasonable, and saving space in the main unit 1.

[0039] More specifically, such as Figures 3 to 6As shown, a first connecting pipe 3 and a second connecting pipe 4 are installed between the main unit 1 and the floor brush assembly 2. The lower end of the second channel 14 is connected to the first air outlet 22 through the first connecting pipe 3, and the first air inlet 21 is connected to the lower end of the second channel 14 through the second connecting pipe 4. The first connecting pipe 3, as a component of the first flow channel, connects the lower end of the second channel 14 to the first air outlet 22 of the floor brush assembly 2, and is used to discharge the gas in the main unit 1 out of the device. The second connecting pipe 4, as a component of the second flow channel, connects the first air inlet 21 of the floor brush assembly 2 to the lower end of the second channel 14, and is used to transport the dust-laden air sucked in by the floor brush assembly 2 into the main unit 1. The arrangement of the first connecting pipe 3 and the second connecting pipe 4 makes the use of the vacuuming device more flexible, especially suitable for use with upright vacuuming devices. The length and direction of each connecting pipe can be adjusted as needed to ensure smooth airflow, reduce airflow resistance, and improve the vacuuming efficiency of the device.

[0040] More specifically, such as Figures 3 to 6 As shown, the first connecting pipe 3 is fitted over the second connecting pipe 4. There is a gap between the outer wall of the second connecting pipe 4 and the inner wall of the first connecting pipe 3 for gas flow. The first connecting pipe 3 serves as the outer pipe, and the second connecting pipe 4 serves as the inner pipe, forming a sleeve-type structure. There is an annular gap between the outer wall of the second connecting pipe 4 and the inner wall of the first connecting pipe 3. This annular gap connects the lower end of the second channel 14 and the first air outlet 22, thus forming a partial second flow channel. Gas enters the device from the first air inlet 21 of the floor brush assembly 2 and is transported to the first channel through the second connecting pipe 4. At the lower end of 13, the gas enters the main unit 1 and passes through the first channel 13, the first air inlet 21, the second air outlet 112, and the lower end of the second channel 14 in sequence before being discharged. The discharged gas enters the gap between the first connecting pipe 3 and the second connecting pipe 4, and is finally discharged through the first air outlet 22 of the floor brush assembly 2. The sleeve-type structure design integrates the functions of the first connecting pipe 3 and the second connecting pipe 4 into a compact space, reducing the overall volume and making the whole machine structure more compact and optimizing the space layout. It is especially suitable for use with upright vacuum cleaners, effectively reducing the size of the whole machine.

[0041] More specifically, such as Figures 3 to 7As shown, a first connector 5 is provided between the first connecting pipe 3 and the lower end of the second channel 14. The first connecting pipe 3 is connected to the lower end of the second channel 14 through the first connector 5. The first connector 5 has a conical structure. The gas discharged from the lower end of the second channel 14 enters the first connecting pipe 3 through the guiding effect of the first connector 5. The first connector 5 adopts a conical structure, connecting the lower end of the second channel 14 and the first connecting pipe 3 to form a gradually narrowing transition channel. The first connector 5 can guide the airflow from the relatively wide lower end of the second channel 14 through the conical structure to gradually narrow, accelerate and stabilize its entry into the first connecting pipe 3, and reduce airflow turbulence and resistance. The conical structure of the first connector 5 can also optimize the transition of airflow from the lower end of the second channel 14 to the annular gap (second flow channel), so that the lower end of the first channel 13 and the lower end of the second channel 14 can be separated to avoid interference between the airflow of the inner and outer pipes, and make the discharged gas evenly dispersed in the annular gap between the first connecting pipe 3 and the second connecting pipe 4. The conical structure of the first connector 5 occupies little space and is integrated with the sleeve structure, further optimizing the spatial distribution.

[0042] More specifically, such as Figures 3 to 7 As shown, the first connector 5 is fitted with a second connector 6. The second connecting pipe 4 is connected to the lower end of the first channel 13 through the second connector 6. The second connector 6 is mainly used to connect the second connecting pipe 4 and the lower end of the first channel 13. The first connector 5 and the second connector 6 are fitted together to form a separation structure, separating the lower end of the first channel 13 from the lower end of the second channel 14. This makes the first channel 13 and the second channel 14 independent channels connected only through the motor unit 11. The lower ends of the first channel 13 and the second channel 14 do not interfere with each other, thus optimizing the airflow path and improving the gas flow efficiency. Furthermore, the fitted design of the first connector 5 and the second connector 6 makes the entire structure more compact, reduces space occupation, and improves the stability of the structure.

[0043] More specifically, such as Figures 3 to 7As shown, the lower end of the second connector 6 is provided with a first through hole 61 that connects to the second connecting pipe 4, and the upper end of the second connector 6 is provided with a second through hole 62 and a third through hole 63. The second through hole 62 is used to connect the second connecting pipe 4 and the lower end of the first channel 13, and the third through hole 63 is used to connect the lower ends of the first connector 5 and the second channel 14. The first through hole 61 and the second through hole 62 cooperate to connect the second connecting pipe 4 and the first channel 13, and are responsible for introducing the dust-laden air in the second connecting pipe 4 into the first channel 13. The third through hole 63 cooperates with the first connector 5 to connect the first connecting pipe 3 and the second channel 14, and are responsible for introducing the gas from the second channel 14 into the annular gap between the first connecting pipe 3 and the second connecting pipe 4. The three through holes realize the physical separation of the airflow path, ensuring that the first flow channel and the second flow channel are independent of each other and avoiding cross interference. The first connector 5 and the second connector 6 cooperate to form a three-way structure, which integrates the functions that traditionally require multiple independent interfaces into a single connection structure, simplifies the pipeline layout, reduces redundant pipes, and helps to reduce the overall size of the machine. The structural design is more ingenious.

[0044] More specifically, such as Figure 3 and Figure 7 As shown, the lower end of the second connector 6 is snapped into the end of the second connecting pipe 4 through the first through hole 61, and the upper end of the second connector 6 is locked to the first connector 5 by fasteners; the lower end of the first connector 5 is snapped into the end of the first connecting pipe 3, and the second connector 6 and the second connecting pipe 4 are connected by snapping. The ends of the second connector 6 and the second connecting pipe 4 are stably connected by a groove and a retaining ring, ensuring the sealing and convenience of the connection end. The fasteners used to fix the second connector 6 and the first connector 5 enhance the stability and reliability of the connection, preventing loosening due to vibration or other external forces during use. The installation is convenient and the sealing is good; the first connector 5 is connected to the first connecting pipe 3 by snapping. The ends of the first connector 5 and the first connecting pipe 3 are stably connected by a groove and a retaining ring, ensuring the sealing and convenience of the connection end. The installation is simple and reliable.

[0045] More specifically, such as Figure 3 and Figure 7As shown, a first sealing element 64 is provided between the second through hole 62 and the lower end of the first channel 13, and the second through hole 62 is sealed to the lower end of the first channel 13 through the first sealing element 64; a second sealing element 51 is provided between the first connector 5 and the housing of the main unit 1, and the first connector 5 is sealed to the housing of the main unit 1 through the second sealing element 51. The first sealing element 64 is used to achieve a sealed connection between the second through hole 62 and the lower end of the first channel 13, and the second sealing element 51 is used to achieve a sealed connection between the first connector 5 and the housing of the main unit 1. The double sealing mechanism ensures the sealing of the connection parts and reduces the risk of gas leakage. The sealing element is usually made of elastic material, which can also enhance the structural stability of the connection parts and reduce loosening caused by vibration or external force.

[0046] Example 2

[0047] like Figures 1 to 7 As shown, this embodiment provides a dust collection device based on Embodiment 1, with the same structure as Embodiment 1. The main unit 1 is equipped with a first dust cup 12, which has a filter chamber for separating and collecting dust. The first channel 13, the first dust cup 12, and the second air inlet 111 are sequentially connected. The first dust cup 12 is mounted on the main unit 1 and mainly connects the first channel 13 and the motor unit 11. The first air inlet 21, the first channel 13, the first dust cup 12, and the second air inlet 111 are sequentially connected to form a first flow channel. The second air outlet 112, the second channel 14, and the first air outlet 22 are sequentially connected to form a second flow channel, making the gas flow more orderly, reducing airflow turbulence and resistance, and improving filtration efficiency.

[0048] Example 3

[0049] like Figure 8 and Figure 9As shown, this embodiment provides a vacuuming device based on Embodiment 2, with the same structure. The floor brush assembly 2 is equipped with a second dust cup 23, which has a filter chamber for separating and collecting dust. The second dust cup 23 has a first inlet 231 and a first outlet 232. The first air inlet 21 is connected to the first inlet 231, and the first outlet 232 is connected to the lower end of the first channel 13. The first air inlet 21 and the first channel 13 are connected via the second dust cup 23. The first air inlet 21, the second dust cup 23, the first channel 13, the first dust cup 12, and the second air inlet 111 are sequentially connected to form a first flow channel. Two filter chambers are provided, including the first dust cup 12 located on the main unit 1 and the second dust cup 23 located on the floor brush assembly 2. In this design, the outlet of the second dust cup 23 is connected to the lower end of the first channel 13 via... The second connecting pipe 4 is connected, and the first air inlet 21, the second dust cup 23, the second connecting pipe 4, the first channel 13 and the second air inlet 111 are connected in sequence to form the first flow channel. The lower end of the second channel 14 is connected to the first air outlet 22 through the annular gap between the first connecting pipe 3 and the second connecting pipe 4. The second air outlet 112, the lower end of the second channel 14, the first connecting pipe 3 and the first air outlet 22 are connected in sequence to form the second flow channel. The gas passes through the floor brush assembly 2, the second dust cup 23, the first dust cup 12 and the motor unit 11 in sequence and then returns to the floor brush assembly 2 for discharge. The second dust cup 23 is mainly responsible for the preliminary filtration of the gas drawn in, and the first dust cup 12 is used for the secondary filtration of the gas drawn in. The first dust cup 12 and the second dust cup 23 form a dual filtration, which improves the filtration efficiency of the whole machine, eliminates traditional filter cotton, HEPA filter and other filter consumables, and reduces the cost of use.

[0050] More specifically, such as Figure 8 and Figure 9 As shown, the first dust cup 12 is detachably installed on the main unit 1, and the second dust cup 23 is detachably installed on the floor brush assembly 2. Both the first dust cup 12 and the second dust cup 23 are detachably installed, which makes it easy for users to disassemble and clean them. This avoids the problem of traditional vacuum cleaner dust cups being difficult to disassemble and clean, and reduces the risk of dust accumulation and clogging. The connection between the second dust cup 23 and the floor brush assembly 2 includes, but is not limited to, clips, knobs or other quick-release structures, ensuring that the installation is firm and easy to disassemble. Users can easily remove the second dust cup 23 from the floor brush assembly 2, reducing the time and effort required to clean the second dust cup 23 and improving the user experience.

[0051] Example 4

[0052] like Figure 10 and Figure 11As shown, this embodiment provides a dust collection device based on Embodiment 3, with the same structure as Embodiment 3. A first filter 24 is installed inside the second dust cup 23. Gas in the second dust cup 23 is filtered by the first filter 24 and discharged through the first outlet 232. Gas drawn in by the first air inlet 21 of the floor brush assembly 2 enters the second dust cup 23 through the first inlet 231. By setting the first filter 24 inside the second dust cup 23, dust and impurities in the gas are intercepted by the first filter 24 within the second dust cup 23. The design of the first filter 24 near the first outlet 232 ensures that the gas must undergo preliminary filtration before discharge, removing larger dust and impurities, thereby effectively separating dust and impurities in the air and preventing unfiltered air from being directly discharged through the first air outlet 22, thus improving filtration efficiency.

[0053] More specifically, such as Figure 11 As shown, a first guide plate 25 is provided inside the second dust cup 23. The first guide plate 25 is located between the first inlet 231 and the first outlet 232 to separate the first inlet 231 and the first outlet 232. The first guide plate 25 is located between the first inlet 231 and the first outlet 232 to separate the first inlet 231 and the first outlet 232, extend the flow path of the airflow in the second dust cup 23, prevent the airflow of the first inlet 231 from being directly discharged through the first outlet 232, and improve the filtration efficiency.

[0054] More specifically, such as Figure 10 As shown, the first filter screen 24 has an arc-shaped structure, and the first guide plate 25 has an arc-shaped structure relative to the first filter screen 24. Setting the first filter screen 24 to have an arc-shaped structure makes more effective use of the internal space of the second dust cup 23, increases the filtration area, and allows more gas to pass through the first filter screen 24 simultaneously compared to a planar structure. The arc-shaped structure can reduce the resistance when the airflow passes through, allowing the airflow to pass through the first filter screen 24 more smoothly, thereby improving the filtration efficiency. The arc-shaped first guide plate 25 is more compatible with the first filter screen 24, improving the overall filtration efficiency, enhancing the stability of the overall structure, reducing vibration and deformation caused by airflow impact, and extending the service life of the second dust cup 23.

[0055] More specifically, such as Figure 11As shown, the second dust cup 23 is further equipped with a second guide plate 26 and a third guide plate 27. One end of the first guide plate 25 is connected to the second guide plate 26, and the other end of the first guide plate 25 is connected to the third guide plate 27. A first opening facing the first inlet 231 is formed between the second guide plate 26 and the third guide plate 27. The first guide plate 25, the second guide plate 26, and the third guide plate 27 work together to more precisely control the airflow path. One end of the first guide plate 25 is connected to the second guide plate 26, and the other end is connected to the third guide plate 27, forming an integrated guide structure, which enhances the stability of the guide plates. Through the design of multi-stage guide plates, the airflow distribution is further optimized, making the residence time of the airflow in the second dust cup 23 longer. The length of the first opening allows for better filtration. The first opening faces the first inlet 231. The first guide plate 25, the second guide plate 26, and the third guide plate 27 form a frame structure that can intercept and contain dust and impurities. The gas drawn in by the first inlet 231 is dispersed and intercepted by the first guide plate 25, the second guide plate 26, and the third guide plate 27, preventing dust from accumulating in the first outlet 232 in a short time and improving gas discharge efficiency. The first guide plate 25, the second guide plate 26, and the third guide plate 27 are integrally molded structures. The integral molding structure reduces airflow leakage and turbulence between the guide plates, optimizes the airflow path, reduces airflow resistance, reduces the risk of dust leakage, improves filtration efficiency, and enhances the overall structural stability of the guide plates.

[0056] More specifically, such as Figure 11 As shown, one end of the second guide plate 26 is connected to the first guide plate 25, and the other end of the second guide plate 26 is provided with a first baffle 261 formed by bending towards the third guide plate 27. One end of the third guide plate 27 is connected to the first guide plate 25, and the other end of the third guide plate 27 is provided with a second baffle 271 formed by bending towards the second guide plate 26. The first baffle 261 and the second baffle 271 are on the same straight line. By setting the first baffle 261 and the second baffle 271 facing each other, dust and impurities in the airflow can be effectively blocked, so that dust and impurities are intercepted in the frame structure formed by the first guide plate 25, the second guide plate 26 and the third guide plate 27, preventing them from directly entering the subsequent filtration system and improving filtration efficiency. The second baffle 271 and the first baffle 261 are on the same straight line, forming a symmetrical structure, ensuring the uniform distribution of airflow between the guide plates, reducing airflow turbulence and improving airflow stability.

[0057] 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 vacuuming device, characterized in that, The system includes a main unit (1) and a floor brush assembly (2) connected to the main unit (1). At least one of the main unit (1) and the floor brush assembly (2) is provided with a filter chamber. The main unit (1) is equipped with a motor unit (11). The floor brush assembly (2) is provided with a first air inlet (21) and a first air outlet (22). The motor unit (11) is provided with a second air inlet (111) and a second air outlet (112). The first air inlet (21), the filter chamber and the second air inlet (111) are sequentially connected to form a first flow channel. The second air outlet (112) is connected to the first air outlet (22) to form a second flow channel. The gas drawn in by the first air inlet (21) passes through the first flow channel and the second flow channel in sequence and is discharged through the first air outlet (22). The first air outlet (22) is connected to the first flow channel so that the first flow channel and the second flow channel constitute a circulating flow channel.

2. The vacuuming device according to claim 1, characterized in that, The host (1) is provided with two parallel channels extending in the vertical direction. The two parallel channels extending in the vertical direction are the first channel (13) and the second channel (14). The first channel (13) is a component of the first flow channel. The lower end of the first channel (13) is connected to the first air inlet (21), and the upper end of the first channel (13) is connected to the second air inlet (111). The second channel (14) is a component of the second flow channel. The upper end of the second channel (14) is connected to the second air outlet (112), and the lower end of the second channel (14) is connected to the first air outlet (22).

3. A vacuuming device according to claim 2, characterized in that, A first connecting pipe (3) and a second connecting pipe (4) are installed between the host (1) and the floor brush assembly (2). The lower end of the second channel (14) is connected to the first air outlet (22) through the first connecting pipe (3), and the first air inlet (21) is connected to the lower end of the first channel (13) through the second connecting pipe (4).

4. A vacuuming device according to claim 3, characterized in that, The first connecting pipe (3) is fitted over the second connecting pipe (4), and there is a gap between the outer wall of the second connecting pipe (4) and the inner wall of the first connecting pipe (3) for gas to flow.

5. A vacuuming device according to claim 4, characterized in that, A first connector (5) is provided between the lower end of the first connecting pipe (3) and the second channel (14). The first connecting pipe (3) is connected to the lower end of the second channel (14) through the first connector (5). The first connector (5) has a conical structure. The gas discharged from the lower end of the second channel (14) enters the first connecting pipe (3) through the guiding effect of the first connector (5).

6. A vacuuming device according to claim 5, characterized in that, The first connector (5) is fitted with a second connector (6), and the second connecting pipe (4) is connected to the lower end of the first channel (13) through the second connector (6).

7. A vacuuming device according to claim 6, characterized in that, The lower end of the second connector (6) is provided with a first through hole (61) for connecting to the second connecting pipe (4), and the upper end of the second connector (6) is provided with a second through hole (62) and a third through hole (63). The second through hole (62) is used to connect the lower end of the second connecting pipe (4) and the first channel (13), and the third through hole (63) is used to connect the lower end of the first connector (5) and the second channel (14).

8. A vacuuming device according to claim 7, characterized in that, The lower end of the second connector (6) is engaged with the end of the second connecting pipe (4) through the first through hole (61), and the upper end of the second connector (6) is locked with the first connector (5) by fasteners; the lower end of the first connector (5) is engaged with the end of the first connecting pipe (3).

9. A vacuuming device according to claim 2, characterized in that, The host (1) is provided with a first dust cup (12), the first dust cup (12) is provided with the filter chamber, and the first channel (13), the first dust cup (12) and the second air inlet (111) are connected in sequence.

10. A vacuuming device according to claim 9, characterized in that, The floor brush assembly (2) is provided with a second dust cup (23), which is provided with the filter chamber. The second dust cup (23) is provided with a first inlet (231) and a first outlet (232). The first air inlet (21) is connected to the first inlet (231), and the first outlet (232) is connected to the lower end of the first channel (13). The first air inlet (21), the second dust cup (23), the first channel (13), the first dust cup (12), and the second air inlet (111) are connected in sequence to form a first flow channel.

11. A vacuuming device according to claim 10, characterized in that, The first dust cup (12) is detachably installed on the main unit (1), and the second dust cup (23) is detachably installed on the floor brush assembly (2). A first filter screen (24) is installed inside the second dust cup (23). The first filter screen (24) is located near the first outlet (232). The gas in the second dust cup (23) is filtered by the first filter screen (24) and then discharged through the first outlet (232).

12. A vacuuming device according to claim 11, characterized in that, The second dust cup (23) is provided with a first guide plate (25), which is located between the first inlet (231) and the first outlet (232) to separate the first inlet (231) and the first outlet (232).

13. A vacuuming device according to claim 12, characterized in that, The second dust cup (23) is further provided with a second guide plate (26) and a third guide plate (27). One end of the first guide plate (25) is connected to the second guide plate (26), and the other end of the first guide plate (25) is connected to the third guide plate (27). A first opening facing the first inlet (231) is formed between the second guide plate (26) and the third guide plate (27). The first guide plate (25), the second guide plate (26) and the third guide plate (27) are either separate structures or integrally formed structures.

14. A vacuuming device according to claim 13, characterized in that, One end of the second guide plate (26) is connected to the first guide plate (25), and the other end of the second guide plate (26) is provided with a first baffle (261) formed by bending towards the third guide plate (27). One end of the third guide plate (27) is connected to the first guide plate (25), and the other end of the third guide plate (27) is provided with a second baffle (271) formed by bending towards the second guide plate (26). The first baffle (261) and the second baffle (271) are on the same straight line.

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