A dust collector with an anti-winding built-in pulverizing module

Abstract

The application relates to the technical field of dust collectors, and particularly relates to a dust collector with an anti-winding and crushing module, which comprises an air inlet channel and an anti-winding and crushing module, the anti-winding and crushing module comprises a flow guide shaft body, a crushing unit, a filter end cover and a self-rotation driving assembly; the flow guide shaft body is rotationally connected with the air inlet channel through a bearing assembly, the inside of the flow guide shaft body is a driving air channel, and the outside of the flow guide shaft body and the inner wall of the air inlet channel are a dust collection air channel; the crushing unit comprises two crushing assemblies, the power end of the crushing assembly extends into the driving air channel, the working end of the crushing assembly is located in the dust collection air channel and is perpendicular to the airflow direction; the filter end cover is arranged at the air inlet end of the flow guide shaft body; and the self-rotation driving assembly is used for driving the flow guide shaft body to rotate; the anti-winding and crushing module is arranged, so that dust collection and crushing are synchronously performed, and manual mode switching is not needed.

Description

Technical Field

[0001] This invention relates to the field of vacuum cleaner technology, specifically to a vacuum cleaner with a built-in anti-tangling and shredding module. Background Technology

[0002] Vacuum cleaners are commonly used appliances for daily cleaning and are widely used in homes, offices, and other settings. They are mainly used to remove dust, debris, hair, and fibrous materials. Current vacuum cleaners typically consist of a fan assembly, air intake duct, cyclone separator, and dust collection chamber. They rely on the negative pressure generated by the fan to draw in air containing impurities and complete the gas-solid separation process, thus achieving the cleaning purpose.

[0003] Patent CN120436502B discloses a vacuum cleaner with a shredding module. Its working principle is as follows: The design sets up an expansion component and a shredding roller inside the suction head assembly. The drive shaft drives the connecting plate to rotate, so that the friction block overcomes the tension of the return spring and presses against the inner wall of the shredding roller under the action of centrifugal force, thereby driving the shredding roller to rotate by friction. The surface of the shredding roller is equipped with blades connected by torsion springs. Under normal vacuuming conditions, the blades are wrapped and stored by the external roller brush. The roller brush needs to be removed to switch to the shredding mode. When the speed reaches the threshold, the blades are unfolded by centrifugal force and form an interlaced shearing structure with the mechanical baffle on the inner wall of the suction nozzle, thereby shredding the sucked-in debris.

[0004] Although the above solution achieves the goal of shredding larger debris to improve cleaning efficiency, it still has the following problems: the shredding function relies on manual mode switching, and the roller brush must be disassembled before the shredding operation can be started. It cannot complete the pre-shredding process simultaneously during the continuous operation of normal vacuuming. Hair, fibers and other easily tangled debris will directly enter the air duct and internal components when the mode is not switched, which will still cause tangling, jamming and blockage problems. Summary of the Invention

[0005] To address the aforementioned issues, a vacuum cleaner with a built-in anti-tangling and shredding module is provided. By integrating the anti-tangling and shredding module into the air inlet channel, power supply and vacuuming operations can be completed simultaneously by relying on airflow diversion, thereby achieving simultaneous vacuuming and shredding without the need for manual mode switching.

[0006] To address the problems of existing technologies, this invention provides a vacuum cleaner with a built-in anti-tangling pulverizing module, comprising a housing, an air inlet channel, a cyclone separation chamber, a dust collection bin, and a fan assembly. The air inlet channel is equipped with an anti-tangling pulverizing module, which includes a guide shaft, a pulverizing unit, a filter end cap, and a rotation drive assembly. The guide shaft is coaxially disposed within the air inlet channel and rotatably connected to the air inlet channel via a bearing assembly. The interior of the guide shaft forms a drive air passage, while the exterior of the guide shaft and the inner wall of the air inlet channel form a suction air passage. The pulverizing unit includes two meshing pulverizing components, each having a power end and a working end. The power end of the pulverizing component extends into the drive air passage, while the working end of the pulverizing component is located in the suction air passage and perpendicular to the airflow direction. The filter end cap is disposed at the air inlet end of the guide shaft and has a filter through-hole for filtration. The rotation drive assembly is disposed at the air outlet end of the guide shaft and drives the guide shaft to rotate.

[0007] Preferably, the pulverizing unit has multiple units, which are arranged in a spiral shape along the axial direction of the guide shaft.

[0008] Preferably, the crushing assembly includes a drive shaft and crushing blades; one end of the drive shaft is located inside the guide shaft body; the crushing blades are mounted on the drive shaft, and the cutting edges of the crushing blades in the two crushing assemblies are arranged to interlock with each other.

[0009] Preferably, the crushing unit further includes a reverse transmission assembly, which is used to drive the two crushing components together.

[0010] Preferably, the crushing unit further includes a protective cover, which covers the root of the crushing blade.

[0011] Preferably, the anti-entanglement crushing module further includes a flow guiding nozzle, which is used to guide airflow to act on the power end of the crushing component.

[0012] Preferably, the self-rotation drive assembly includes axial fan blades, which are coaxially disposed at the air outlet end of the guide shaft and fixedly connected to the guide shaft.

[0013] Preferably, the middle part of the filter end cap is conical to guide the airflow in all directions.

[0014] Preferably, the filter end cap has a plurality of vent holes arranged circumferentially along its edge, the vent holes being used to generate a tangential driving force for the airflow.

[0015] Preferably, the crushing assembly further includes a force-receiving impeller, which drives the crushing assembly to rotate when the airflow passes through the force-receiving impeller.

[0016] The advantages of this invention application compared to the prior art are:

[0017] 1. This invention application includes a housing, an air inlet channel, a cyclone separation chamber, a dust collection bin, a fan assembly, and an anti-tangling pulverizing module. The fan assembly generates negative pressure to draw air containing impurities into the air inlet channel and achieves airflow diversion. Part of the airflow enters the drive air duct to provide power for the pulverizing component, while the other part enters the dust collection air duct to transport impurities. The guide shaft rotates stably under the cooperation of the self-rotation drive assembly and the bearing assembly, driving the pulverizing unit to operate synchronously and pre-treating impurities in the dust collection air duct. The filter end cap can filter impurities to prevent the drive air duct from getting stuck. The anti-tangling pulverizing module is built into the air inlet channel and can simultaneously complete power supply and dust collection operations by relying on airflow diversion. No additional drive motor is required, and there is no need to disassemble and switch modes, thus achieving simultaneous dust collection and pulverization without the need for manual mode switching.

[0018] 2. This invention employs multiple pulverizing units arranged spirally along the axial direction of the guide shaft. When the guide shaft rotates, it drives all pulverizing units to revolve synchronously, forming a continuous and dead-angle-free pulverizing area within the dust extraction duct. Each pulverizing component is driven by the airflow within the drive duct, which can continuously cut and decompose impurities in the airflow. Long fibers and hair-like impurities pass through each pulverizing unit sequentially with the axial airflow and are fully processed step by step. Combined with the rotation of the guide shaft, this achieves more comprehensive contact between the pulverizing units and impurities, with no local omissions.

[0019] 3. This invention application sets up a drive shaft and a crushing blade. Air is diverted into the drive air passage through the air inlet channel. The airflow acts on one end of the drive shaft in the guide shaft body to provide rotational power. The drive shaft transmits the power to the crushing blade and drives it to rotate. The crushing blades of the two crushing components are arranged to interlock with each other. During the rotation, they form a continuous shearing action. Hair, fibers and other impurities in the dust suction air passage move with the airflow to the crushing blade. The interlocking rotating blade continuously shears and processes them. By using two interlocking crushing blades, it is possible to quickly cut off hair, fibers and other easily entangled impurities. Attached Figure Description

[0020] Figure 1 This is a perspective view of a vacuum cleaner with a built-in anti-tangling and crushing module, as per this invention application.

[0021] Figure 2 This is a front view of the air inlet channel and the anti-tangling and shredding module in a vacuum cleaner with a built-in anti-tangling and shredding module according to the present invention.

[0022] Figure 3 yes Figure 2 A three-dimensional sectional view at point AA.

[0023] Figure 4This is a three-dimensional sectional view of the anti-tangling and shredding module in a vacuum cleaner with a built-in anti-tangling and shredding module, as described in this invention application.

[0024] Figure 5 yes Figure 4 A magnified view of a portion of point B in the middle.

[0025] Figure 6 This is a perspective view of the guide shaft and the pulverizing unit in a vacuum cleaner with a built-in anti-tangling pulverizing module, as described in this invention application.

[0026] Figure 7 This is a perspective view of the drive shaft, crushing blades, and reverse transmission assembly in a vacuum cleaner with a built-in anti-tangling crushing module, as described in this invention application.

[0027] Figure 8 This is a perspective view of the shredding component and gears in a vacuum cleaner with a built-in anti-tangling shredding module, as described in this invention application.

[0028] Figure 9 This is a perspective view of the shredding blade and protective cover in a vacuum cleaner with a built-in anti-tangling shredding module, as described in this invention application.

[0029] Figure 10 This is a perspective view of the shredding component, the force-bearing impeller, and the flow-guiding nozzle in a vacuum cleaner with a built-in anti-tangling shredding module, as described in this invention application.

[0030] Figure 11 This is a perspective view of the guide shaft and filter end cap in a vacuum cleaner with a built-in anti-tangling and shredding module, as described in this invention application.

[0031] Figure 12 This is a perspective view of the guide shaft and axial fan blades in a vacuum cleaner with a built-in anti-tangling and crushing module, as described in this invention application.

[0032] The following are the labels in the diagram: 1. Air inlet channel; 2. Guide shaft; 21. Drive air duct; 22. Dust suction air duct; 3. Crushing unit; 31. Crushing assembly; 311. Drive shaft; 312. Crushing blade; 313. Force-bearing impeller; 32. Reverse transmission assembly; 321. Gear; 33. Protective cover; 4. Filter end cap; 41. Vent hole; 5. Self-rotation drive assembly; 51. Axial flow fan blade; 6. Guide nozzle. Detailed Implementation

[0033] To further understand the features, technical means, and specific objectives and functions achieved by this invention application, the invention application will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figures 1 to 12As shown: A vacuum cleaner with a built-in anti-tangling shredding module includes a housing, an air inlet channel 1, a cyclone separation chamber, a dust collection bin, and a fan assembly. The air inlet channel 1 is equipped with an anti-tangling shredding module, which includes a guide shaft 2, a shredding unit 3, a filter end cap 4, and a self-rotating drive assembly 5. The guide shaft 2 is coaxially disposed within the air inlet channel 1, and the guide shaft 2 is rotatably connected to the air inlet channel 1 via a bearing assembly. The interior of the guide shaft 2 is a drive air passage 21, and the exterior of the guide shaft 2 is flush with the inner wall of the air inlet channel 1. The space between the two is a suction air duct 22; the pulverizing unit 3 includes two meshing pulverizing components 31, each pulverizing component 31 having a power end and a working end. The power end of the pulverizing component 31 extends into the driving air duct 21, and the working end of the pulverizing component 31 is located in the suction air duct 22 and is perpendicular to the airflow direction; the filter end cover 4 is disposed at the air inlet end of the guide shaft 2, and the filter end cover 4 has a filter through hole for filtering; the rotation drive component 5 is disposed at the air outlet end of the guide shaft 2, and the rotation drive component 5 is used to drive the guide shaft 2 to rotate.

[0035] External air containing impurities enters the air inlet channel 1 under the negative pressure generated by the fan assembly. The air is then split, with one portion entering the drive air passage 21 inside the guide shaft 2, and the other portion entering the dust suction air passage 22 between the guide shaft 2 and the inner wall of the air inlet channel 1. Driven by the rotation drive assembly 5, the guide shaft 2 rotates stably relative to the air inlet channel 1 via a bearing assembly. The two pulverizing components 31 of the pulverizing unit 3 rotate synchronously with the guide shaft 2. The power end of the pulverizing component 31 obtains power within the drive air passage 21, while the working end acts on the impurities entering with the airflow within the dust suction air passage 22. The filter end cap 4 filters the air entering the drive air passage 21 through filter holes, preventing impurities from entering and causing blockages. The rotation drive assembly 5 continuously provides rotational power to the guide shaft 2, enabling the pulverizing unit 3 to effectively target impurities within the dust suction air passage 22. This anti-tangling pulverizing module is integrated into the air inlet channel 1, allowing for simultaneous dust suction and pulverization without the need for manual mode switching.

[0036] Reference Figure 6 As shown: There are multiple crushing units 3, and the multiple crushing units 3 are arranged in a spiral shape along the axial direction of the guide shaft 2.

[0037] When the guide shaft 2 rotates, multiple crushing units 3 rotate synchronously with it. These units are arranged spirally along the axial direction of the guide shaft 2, forming a continuous and seamless working area within the suction duct 22. The two crushing components 31 of each crushing unit 3 are driven by the airflow within the drive duct 21 at their power ends, and their working ends cut and decompose impurities in the airflow within the suction duct 22. As the airflow flows axially, long fibers and hair-like impurities pass through the working area of ​​each crushing unit 3 in sequence, making full contact with the units and being processed step-by-step. The spiral arrangement, combined with the rotation of the guide shaft 2, ensures more comprehensive contact between the crushing units 3 and the impurities, eliminating any localized omissions.

[0038] Reference Figure 4 , Figure 5 and Figure 7 As shown: The crushing assembly 31 includes a drive shaft 311 and a crushing blade 312; one end of the drive shaft 311 is located inside the guide shaft body 2; the crushing blade 312 is mounted on the drive shaft 311, and the blades of the crushing blades 312 in the two crushing assemblies 31 are arranged to interlock with each other.

[0039] Air is diverted through the air inlet channel 1 and enters the drive air duct 21. The airflow acts on one end of the drive shaft 311 located inside the guide shaft body 2 in the pulverizing assembly 31, providing rotational power to the drive shaft 311. The drive shaft 311 stably transmits the power to the pulverizing blades 312, causing the pulverizing blades 312 to rotate synchronously. The pulverizing blades 312 of the two pulverizing assemblies 31 are arranged with interlocking blades, forming a continuous shearing action during rotation. Hair, fibers, and other impurities in the dust suction duct 22 are moved by the airflow to the pulverizing blades 312, where they are continuously sheared by the interlocking rotating blades. By using two interlocking pulverizing blades 312, it is possible to quickly cut off easily entangled impurities such as hair and fibers.

[0040] Reference Figure 5 , Figure 7 and Figure 8 As shown: The crushing unit 3 also includes a reverse transmission component 32, which is used to drive the two crushing components 31.

[0041] Specifically, the reverse transmission assembly 32 includes two meshing gears 321, which are respectively mounted on the drive shafts 311 of the two crushing assemblies 31.

[0042] The airflow within the drive duct 21 acts on the drive shaft 311 of one of the pulverizing components 31, driving the drive shaft 311 to rotate. The gear 321 mounted on this drive shaft 311 rotates simultaneously, and through meshing, transmits power to the drive shaft 311 of the other pulverizing component 31. This causes the two drive shafts 311 to rotate synchronously in opposite directions under the drive of the reverse transmission component 32, thereby driving the two pulverizing blades 312 to rotate in opposite directions. Hair, fibers, and various impurities within the suction duct 22 enter the pulverizing area with the airflow and are efficiently sheared and decomposed by the counter-rotating pulverizing blades 312. The meshing gears 321 cause the two pulverizing blades 312 to rotate in opposite directions, thus achieving a strong counter-rotating shearing force and higher processing efficiency.

[0043] Reference Figure 9 As shown: The crushing unit 3 also includes a protective cover 33, which covers the root of the crushing blade 312.

[0044] The protective cover 33 is fixedly installed at the root of the crushing blade 312. When the airflow carries impurities such as hair and fibers into the dust suction duct 22, some impurities tend to accumulate at the root of the connection between the crushing blade 312 and the drive shaft 311. The protective cover 33 effectively isolates the root of the crushing blade 312 from external flowing impurities through physical barrier, blocking the path of impurities to entangle and get stuck at the connection part. Thus, without interfering with the normal shearing operation of the crushing blade 312, impurities are prevented from entering the connection position between the root of the blade and the drive shaft 311.

[0045] Reference Figure 3 and Figure 10 As shown: The anti-entanglement crushing module also includes a flow guiding nozzle 6, which is used to guide the airflow to act on the power end of the crushing component 31.

[0046] The guide nozzle 6 is installed inside the drive air passage 21 to concentrate and directionally guide the flowing air, ensuring that the airflow precisely acts on the power end of the crushing component 31, providing sufficient and stable rotational power for the crushing component 31. The guide shaft 2 rotates in cooperation with the rotation drive component 5 and the bearing assembly, driving the crushing component 31 to revolve synchronously. With the directional power supply from the guide nozzle 6, the working end of the crushing component 31 operates stably within the dust suction air passage 22, promptly shearing and crushing any impurities that enter. The guide nozzle 6 improves drive efficiency by concentrating the airflow, thereby avoiding airflow dispersion losses and ensuring that the crushing component 31 has sufficient power and responds promptly.

[0047] Reference Figure 3 and Figure 12As shown: The self-rotating drive assembly 5 includes an axial flow fan blade 51, which is coaxially arranged at the air outlet end of the guide shaft 2 and fixedly connected to the guide shaft 2.

[0048] The axial fan blade 51 of the self-rotating drive assembly 5 is coaxially fixed at the air outlet end of the guide shaft 2. When the airflow in the drive air passage 21 flows out, it directly impacts the axial fan blade 51, providing rotational driving force for the axial fan blade 51. The axial fan blade 51 rotates accordingly, driving the guide shaft 2 fixedly connected to it. The guide shaft 2 achieves stable self-rotation under the support of the bearing assembly, thereby causing the crushing unit 3 installed on the guide shaft 2 to revolve together. At the same time, the power end of the crushing assembly 31 is continuously operated by the airflow in the drive air passage 21, and its working end performs shearing and decomposition processing on impurities in the dust suction air passage 22, thereby achieving synchronous coordination between the self-rotation of the guide shaft 2 and the operation of the crushing unit 3.

[0049] Reference Figure 3 and Figure 11 As shown: The middle part of the filter end cap 4 is conical, which is used to guide the airflow to flow in all directions.

[0050] The filter end cap 4 has a conical shape in the middle. After the airflow comes into contact with the conical surface of the filter end cap 4, it is smoothly guided to flow in all directions. The filter holes on the filter end cap 4 filter impurities from the air entering the drive air duct 21, preventing impurities from entering the drive air duct 21. The conical structure makes the airflow smooth and free from local eddies, thereby reducing air duct resistance, energy loss and noise generation.

[0051] Reference Figure 11 As shown: The filter end cap 4 has multiple vent holes 41 arranged circumferentially along its edge. The vent holes 41 are used to generate tangential driving force for the airflow.

[0052] Multiple vent holes 41 are arranged circumferentially around the edge of the filter end cap 4. When the airflow passes through the vent holes 41, it generates a tangential driving force. This tangential driving force acts directly on the guide shaft 2, assisting in pushing the guide shaft 2 to rotate under the support of the bearing assembly. The rotation drive assembly 5 and the tangential driving force generated by the vent holes 41 work together to provide a more stable and sufficient rotational power for the guide shaft 2, allowing the crushing unit 3 to rotate smoothly with the guide shaft 2. The crushing assembly 31 performs stable shearing and decomposition of impurities within the dust suction duct 22. The circumferentially arranged vent holes 41 enable the airflow to generate a tangential driving force, thereby providing auxiliary rotational power for the guide shaft 2, reducing the load on the rotation drive assembly 5, and improving the rotational stability of the guide shaft 2.

[0053] Reference Figure 3 and Figure 10As shown: The crushing component 31 also includes a force-receiving impeller 313, and the airflow drives the crushing component 31 to rotate when it flows through the force-receiving impeller 313.

[0054] The airflow within the drive air passage 21 flows through the force-receiving impeller 313 of the pulverizing assembly 31. The airflow impact force directly acts on the force-receiving impeller 313, causing it to rotate. The force-receiving impeller 313 is fixedly connected to the drive shaft 311, thereby synchronously driving the drive shaft 311 to rotate. The drive shaft 311 transmits the rotational power to the pulverizing blades 312, causing the pulverizing blades 312 of both pulverizing assemblies 31 to rotate together. The force-receiving impeller 313 can directly and efficiently convert the kinetic energy of the airflow into rotational power, thus achieving a fast power response in the pulverizing unit 3.

[0055] The above embodiments only illustrate one or more implementation methods of this invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these all fall within the protection scope of this invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A vacuum cleaner with a built-in anti-tangling and shredding module, comprising a housing, an air inlet channel (1), a cyclone separation chamber, a dust collection bin, and a fan assembly, characterized in that, The air inlet channel (1) is equipped with an anti-tangling pulverizing module, which includes a guide shaft (2), a pulverizing unit (3), a filter end cap (4), and a self-rotation drive assembly (5). The guide shaft (2) is coaxially arranged in the air inlet channel (1), and the guide shaft (2) and the air inlet channel (1) are rotatably connected by a bearing assembly. The inside of the guide shaft (2) is a driving air passage (21), and the outside of the guide shaft (2) and the inner wall of the air inlet channel (1) are a dust suction air passage (22). The crushing unit (3) includes two meshing crushing components (31). The crushing component (31) has a power end and a working end. The power end of the crushing component (31) extends into the drive air passage (21), and the working end of the crushing component (31) is located in the dust suction air passage (22) and is perpendicular to the airflow direction. The filter end cap (4) is located at the air inlet end of the guide shaft (2), and a filter through hole for filtration is opened on the filter end cap (4). The self-rotation drive assembly (5) is disposed at the air outlet end of the guide shaft (2), and the self-rotation drive assembly (5) is used to drive the guide shaft (2) to rotate.

2. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 1, characterized in that, The crushing unit (3) has multiple units, and the multiple crushing units (3) are arranged in a spiral shape along the axial direction of the guide shaft (2).

3. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 1, characterized in that, The crushing assembly (31) includes a drive shaft (311) and a crushing blade (312). One end of the drive shaft (311) is located inside the guide shaft body (2); The crushing blade (312) is mounted on the drive shaft (311), and the blades of the crushing blades (312) in the two crushing assemblies (31) are arranged to mesh with each other.

4. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 3, characterized in that, The crushing unit (3) also includes a reverse transmission assembly (32), which is used to drive the two crushing assemblies (31).

5. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 4, characterized in that, The crushing unit (3) also includes a protective cover (33), which covers the root of the crushing blade (312).

6. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 1, characterized in that, The anti-entanglement crushing module also includes a flow guide nozzle (6), which is used to guide the airflow to act on the power end of the crushing component (31).

7. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 1, characterized in that, The self-rotating drive assembly (5) includes an axial fan blade (51), which is coaxially arranged at the air outlet end of the guide shaft (2) and fixedly connected to the guide shaft (2).

8. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 1, characterized in that, The middle part of the filter end cap (4) is conical, which is used to guide the airflow to flow in all directions.

9. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 8, characterized in that, The filter end cap (4) has a plurality of vent holes (41) arranged circumferentially on its edge. The vent holes (41) are used to generate tangential driving force for the airflow.

10. A vacuum cleaner with a built-in anti-tangling and shredding module according to claim 3, characterized in that, The crushing assembly (31) also includes a force-bearing impeller (313), which drives the crushing assembly (31) to rotate when the airflow passes through the force-bearing impeller (313).

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