Airflow power brush rotation high-efficiency cleaning device and use method

Abstract

This invention discloses a high-efficiency airflow-powered brush self-rotating cleaning device and its usage method, belonging to the field of cleaning equipment technology. The device includes a stator and several rotor assemblies mounted on the stator. The rotor assemblies are pneumatic rotating parts. The stator has a main air duct for connecting to the suction port of an external vacuum cleaner. The main air duct is connected to the rotating chamber of each rotor assembly through branch air ducts. In use, the vacuum cleaner's fan provides suction power, driving the rotor assemblies to rotate, achieving simultaneous sweeping and vacuuming. This device does not require an additional motor and its transmission system, has a highly integrated and compact structure, and utilizes negative pressure airflow to provide both rotational and suction power, effectively reducing costs and failure rates. Through symmetrical rotor layout and S-shaped blades, it achieves efficient and orderly centripetal sweeping and directional collection of debris, significantly improving cleaning efficiency and reducing clogging.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, specifically to a high-efficiency cleaning device with airflow-powered rotating brush and its usage method. Background Technology

[0002] Conventional vacuum cleaner heads have a simple structure, relying solely on negative pressure to suck up debris. However, a separate power source is needed for sweeping, making it difficult to reduce the size and weight of the floor brush head. Furthermore, electric floor brushes must include a motor, reduction gear, drive belt (or gears), wiring, and corresponding electronic control components. This not only increases the number of parts and the difficulty of production and assembly but also leads to a significant increase in product cost. The increased complexity of the vacuum cleaner structure, coupled with the brush's reliance on electricity for operation, consumes additional power and is detrimental to energy efficiency. Moreover, it poses a safety hazard in damp areas due to the risk of electrical leakage. Summary of the Invention

[0003] Technical objective: To address the shortcomings of existing vacuum cleaner equipment, this invention discloses a high-efficiency cleaning device with airflow-powered brush rotation and its usage method.

[0004] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution: A pneumatically powered brush self-rotating high-efficiency cleaning device includes a stator and several rotor assemblies mounted on the stator for floor cleaning. The rotor assemblies are pneumatically rotating components. A main air duct is provided on the stator for communication with the external vacuum cleaner suction port. The main air duct is connected to the rotating chamber of each rotor assembly through branch air ducts. The vacuum cleaner's fan provides suction to drive the rotor assemblies to rotate and clean, and simultaneously suck up debris.

[0005] Preferably, the rotor assembly of the present invention includes a hollow shaft, blades, and a brush. The blades are fixed on the hollow shaft, which is rotatably disposed in a corresponding rotating cavity. The brush is fixed on the blade and its end extends out of the rotating cavity to contact the ground for cleaning. The connection port between the branch air passage and the rotating cavity is located on the side wall of the rotating cavity. Gas enters the branch air passage from the side wall of the rotating cavity, and during the entry process, it blows the blades and the hollow shaft located in the rotating cavity to rotate.

[0006] Preferably, the surface of the blade along the rotation axis of the present invention is designed with a continuous S-shaped profile. The concave surface of the S-shaped profile forms a contact surface with the incoming airflow, and the incoming airflow blows the blade to drive the blade to rotate.

[0007] Preferably, in the present invention, the rotor assembly is symmetrically arranged about the main air passage along the travel direction of the cleaning device, and the branch air passage is located on the side of the rotating chamber close to the main air passage, so that the rotor assembly symmetrically located on both sides of the main air passage rotates towards the side where the main air passage is located, and the debris cleaned by the rotor assembly gathers from the outside towards the side where the main air passage is located.

[0008] Preferably, the stator of the present invention has a confluence zone at the center for collecting debris that has not entered the branch air passage, and a confluence channel connected to the confluence zone is opened in each rotating cavity along the tangential direction of the blade rotation.

[0009] Preferably, a negative pressure suction hole is formed on the main air duct of the present invention at a position corresponding to the confluence area, thereby creating a negative pressure environment in the confluence area through the negative pressure suction hole.

[0010] Preferably, the main airway of the present invention is formed by rotating a hollow tube mounted on the stator. On the tube segment corresponding to the confluence area, a negative pressure suction hole is opened on one side and a connecting hole with a size matching the confluence area is opened on the other side. By rotating the hollow tube until the connecting hole corresponds to the confluence area, the collected debris is sucked into the main airway.

[0011] Preferably, the main airway and branch airways of the present invention are both designed with a spiral line in the same direction.

[0012] This invention discloses a method of using the above-mentioned cleaning device. The main air duct on the stator is connected to the air intake of an external vacuum cleaner, and the vacuum cleaner's fan is activated, generating negative pressure airflow in the main air duct and branch air ducts. The negative pressure airflow enters the rotating chamber of each rotor assembly through the branch air duct, driving the rotor assembly to rotate. At the same time, the brush on the rotor assembly rotates and sweeps the ground. The debris generated during sweeping is sucked into the vacuum cleaner through the branch air duct and the main air duct under the suction of the airflow.

[0013] Preferably, in this invention, the debris cleaned up by the present invention gathers from the outside towards the main air passage to the confluence area opened at the bottom of the stator. A negative pressure environment is formed in the confluence area through the negative pressure suction hole on the main air passage to collect the debris. When it is necessary to discharge the collected debris, the main air passage is rotated so that the connecting hole on the main air passage corresponds to the confluence area, and the debris in the confluence area is sucked into the main air passage. After the debris is discharged, the main air passage is rotated back to its original position.

[0014] Beneficial Effects: The airflow-powered brush self-rotating high-efficiency cleaning device and its usage method provided by this invention have the following outstanding beneficial effects: 1. This invention utilizes the negative pressure airflow generated by the vacuum cleaner's own fan, which is diverted through branch air ducts to simultaneously drive the brush to rotate and suck up debris. It achieves "one source, multiple uses," eliminating the complex components such as motors, reduction mechanisms, and wiring required by traditional electric floor brushes. This makes the entire cleaning device more compact and lightweight, reducing manufacturing costs and failure rates.

[0015] 2. This invention significantly improves the airflow impact efficiency and energy conversion rate by designing the connection between the branch air duct and the rotating chamber at a tangential position on the side wall, combined with the optimized design of the blades using a continuous S-shaped profile. Compared to simple direct-blowing or eccentric structures, this invention can generate greater brush rotation torque and more stable speed under the same vacuum cleaner air pressure conditions, making it particularly suitable for cleaning carpets and other high-resistance floor environments.

[0016] 3. This invention achieves a "two-way towards the center" cleaning mode by symmetrically arranging the rotor assembly about the main air duct and rationally setting its rotation direction (both towards the main air duct). This design effectively prevents dust and debris from being thrown out of the edge of the cleaning device during the cleaning process, realizing the active and orderly collection of debris, and significantly improving the cleaning coverage and single-cleaning efficiency.

[0017] 4. This invention features a confluence zone and, through a confluence channel, negative pressure suction hole, and rotatable connecting hole structure, constructs a complete "sweeping-collection-temporary storage-centralized cleaning and discharge" pathway. Especially for debris such as hair, paper scraps, and large particles that easily clog traditional vacuum ports or brush heads, these can be temporarily stored in the confluence zone, and then powerfully sucked up by rotating the main air duct to open the large connecting hole, effectively avoiding internal clogging issues and improving the user experience.

[0018] 5. The main air duct and branch air ducts of this invention adopt a unidirectional spiral design, which reduces the frictional resistance, eddies, and pulsations of airflow within the duct. This allows the negative pressure energy from the vacuum cleaner fan to be transmitted to each working end with minimal loss, ensuring both strong driving force of the brush and sufficient suction power at the suction port, achieving energy saving and efficiency improvement, and reducing the risk of air duct blockage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of the cleaning device of the present invention; Figure 2 This is a schematic diagram of the rotor assembly structure of the present invention; Figure 3 This is a schematic diagram showing the corresponding state of the negative pressure suction hole and the convergence area in this invention; Figure 4 This is a schematic diagram showing the corresponding states of the connecting holes and the convergence zone in this invention; Among them, 1-stator, 2-rotor assembly, 3-main air passage, 4-branch air passage, 5-rotating cavity, 6-hollow shaft, 7-blade, 8-brush, 9-merging area, 10-merging channel, 11-negative pressure suction hole, 12-connecting hole. Detailed Implementation

[0021] Reference will now be made in detail to embodiments of the present disclosure, one or more of which are set forth herein. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and not by way of limitation. Rather, the following description provides convenient illustrations for implementing exemplary embodiments of the present disclosure. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the teachings of the present disclosure without departing from the scope or spirit of the present disclosure.

[0022] Example 1

[0023] like Figure 1 As shown, this invention provides a high-efficiency airflow-powered brush-rotating cleaning device. The device mainly includes a stator 1 and several sets of rotor assemblies 2 mounted on the stator 1. The stator 1 also has rollers on its contact surface with the ground to assist in the movement of the cleaning device; these rollers provide support. The stator 1 serves as the support and housing of the entire device, and has a main air duct 3 inside. The main air duct 3 can be machined internally or implemented by installing hollow tubing. One end of the main air duct 3 has an interface for sealed connection with the external vacuum cleaner's suction port. Inside the stator 1, the main air duct 3 extends into multiple branch air ducts 4, each branch air duct 4 connecting to an independent rotating chamber 5. Each rotating chamber 5 houses a rotor assembly 2. When the external vacuum cleaner's fan is activated, a high-speed negative pressure airflow is generated in the main air duct 3 and the branch air ducts 4. This airflow not only provides power for vacuuming but also drives the rotor assemblies 2 to rotate, achieving a high-efficiency cleaning mode of "simultaneous sweeping and vacuuming".

[0024] Example 2

[0025] This embodiment optimizes the specific structure of rotor assembly 2 based on embodiment 1. For example... Figure 2 As shown, the rotor assembly 2 includes a hollow shaft 6, blades 7, and a brush 8. The blades 7 are fixedly mounted on the hollow shaft 6, which is rotatably mounted within the rotating cavity 5 via bearings. The brush 8 is fixed to the end of the blades 7, with its bristles extending beyond the lower opening of the rotating cavity 5, its end position slightly lower than the roller to allow direct contact with the surface to be cleaned. The connection between the branch air duct 4 and the rotating cavity 5 is carefully designed on the side wall of the rotating cavity 5, and the orientation of this connection is tangential to the rotation direction of the blades 7. When a negative pressure airflow is injected at high speed from the branch air duct 4 into the rotating cavity 5, the airflow directly impacts and pushes the blades 7, thereby driving the hollow shaft 6 and the brush 8 to rotate at high speed together, sweeping the surface. Simultaneously, the airflow creates negative pressure within the rotating cavity 5, drawing dust and debris swept up by the brush 8 into the branch air duct 4 through the hollow shaft 6 or other openings in the rotating cavity 5, and then into the main air duct 3.

[0026] To further improve the efficiency and torque of the airflow-driven blade 7, this embodiment features a special design for the shape of the blade 7. For example... Figure 2 As shown, the surface of blade 7 along its rotation axis adopts a continuous S-shaped profile, preferably an "S" shape. This S-shaped design allows the concave surface of blade 7 to contact the high-speed airflow injected from branch duct 4 over a larger area when rotating, forming a highly efficient "wind-catching" effect, thereby more efficiently converting the kinetic energy of the airflow into the rotational mechanical energy of blade 7. Compared to flat blades, S-shaped blades can generate a larger rotational torque under the same wind pressure and wind speed, ensuring that brush 8 can still maintain effective rotation when encountering greater resistance (such as thick carpets or sticky dirt).

[0027] Example 3

[0028] To ensure effective cleaning and reduce the scattering of debris, this embodiment limits the layout and rotation direction of the rotor assembly 2. For example... Figure 2 As shown, along the direction of travel of the cleaning device (in the same direction as the main air duct), multiple rotor assemblies 2 are symmetrically distributed about the main air duct 3. In this embodiment, there are four sets of rotor assemblies 2. Specifically, the branch air duct 4 is located on the side of the rotating chamber 5 near the main air duct 3. Thus, when the airflow enters, in the set of rotor assemblies 2 near the front end of the direction of travel, the rotor assembly 2 on the left side of the main air duct 3 rotates clockwise, and the rotor assembly 2 on the right side of the main air duct 3 rotates counterclockwise; while near the rear end of the direction of travel (i.e., the end where the main air duct connects to the vacuum cleaner), the rotor assembly 2 on the left side of the main air duct 3 rotates counterclockwise, and the rotor assembly 2 on the right side of the main air duct 3 rotates clockwise. That is, all rotor assemblies 2 rotate towards the side where the main air duct 3 is located, and gather the debris towards the center of the stator 1. This "centripetal" rotation method can gather the debris swept up from the ground by the brush 8 from the outside towards the center of the main air duct 3, effectively preventing the debris from being swept outside the device and improving cleaning efficiency.

[0029] Example 4

[0030] Furthermore, to optimize the collection effect of debris, this embodiment provides a converging area 9 at the bottom center of the stator 1. This converging area 9 is located on the lower surface of the stator 1 and is used to collect debris that is not sucked into the vacuum cleaner during the cleaning process. A converging channel 10 is formed on the inner wall of each rotating cavity 5 along the tangential direction of the blade 7's rotation, connecting the interior of the rotating cavity 5 to the converging area 9. When the brush 8 rotates, centrifugal force is used to throw the swept dust and large particles into the converging area 9 through the converging channel 10, achieving temporary concentration of debris.

[0031] Example 5

[0032] To efficiently draw the debris concentrated in the manifold 9 into the main air duct 3, this embodiment provides a negative pressure suction hole 11 on the wall of the main air duct 3 above the manifold 9. During normal operation, this negative pressure suction hole 11 continuously generates negative pressure on the manifold 9, drawing in light dust particles into the main air duct 3. The invention also provides a cleaning and exhaust function. The main air duct 3 can be constructed from a hollow tube rotatably mounted on the stator 1. On the section of this hollow tube corresponding to the manifold 9, a negative pressure suction hole 11 is provided on one side, and a larger connecting hole 12, matching the shape of the manifold 9, is provided on the other side. During routine cleaning, the hollow tube is rotated to orient the negative pressure suction hole 11 toward the manifold 9 for continuous dust extraction. When large particles of debris need to be removed from the manifold 9, the user can rotate the hollow tube using the preset handle to align and cover the connecting hole 12 completely with the manifold 9. This rotation can be achieved using a preset micro motor; since it's only a 180-degree rotation, the power requirement for the micro motor is low, and it won't excessively increase the weight of the device. After rotation, the cross-sectional area of ​​the airflow passage increases dramatically, generating a powerful suction force that instantly draws all debris from the manifold 9 into the main air duct 3 and into the vacuum cleaner. After cleaning, the hollow tube can be rotated back to its original position.

[0033] Example 6

[0034] To reduce energy loss during airflow and minimize the risk of airflow blockage by debris, this embodiment specifies that both the main air duct 3 and the branch air duct 4 adopt a unidirectional spiral design. This spiral flow channel mimics the characteristics of a natural cyclone or Archimedes' spiral, making the airflow within the duct smoother, reducing turbulence and pulsation, thereby maximizing the transfer of negative pressure energy provided by the vacuum cleaner fan to the rotor assembly 2. This ensures both the strong rotational power of the brush 8 and the suction power for long-distance dust transport.

[0035] Example 7

[0036] This invention also discloses a method of using any of the cleaning devices in embodiments 1-6. The main air duct 3 on the stator 1 is connected to the suction port of an external vacuum cleaner, and the vacuum cleaner's fan is activated, generating negative pressure airflow in the main air duct 3 and the branch air duct 4. The negative pressure airflow enters the rotating chamber 5 where each rotor assembly 2 is located through the branch air duct 4, driving the rotor assembly 2 to rotate. At the same time, the brush on the rotor assembly 2 rotates and sweeps the ground. The debris generated during sweeping is sucked into the vacuum cleaner through the branch air duct 4 and the main air duct 3 under the suction of the airflow. The swept debris gathers from the outside towards the main air duct 3 to the confluence area 9 opened at the bottom of the stator. A negative pressure environment is formed in the confluence area 9 through the negative pressure suction hole 11 on the main air duct 3 to collect the debris. When it is necessary to discharge the collected debris, the main air duct 3 is rotated so that the connecting hole 12 on the main air duct 3 corresponds to the confluence area, sucking the debris in the confluence area 9 into the main air duct 3. After the debris is discharged, the main air duct 3 is rotated back to its original position.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-efficiency cleaning device with a self-rotating airflow brush, characterized in that, It includes a stator (1) and several rotor assemblies (2) set on the stator (1) for floor cleaning. The rotor assembly (2) is a pneumatic rotating component. A main air duct (3) is opened on the stator (1) for communicating with the external vacuum cleaner suction port. The main air duct (3) is connected to the rotating cavity (5) where each rotor assembly (2) is located through a branch air duct (4). The vacuum cleaner fan provides suction to drive the rotor assembly (2) to rotate and clean and simultaneously suck up the cleaned debris.

2. The pneumatically powered brush self-rotating high-efficiency cleaning device according to claim 1, characterized in that, The rotor assembly includes a hollow shaft (6), blades (7) and a brush (8). The blades (7) are fixed on the hollow shaft (6), which is rotatably disposed in the corresponding rotating cavity (5). The brush (8) is fixed on the blades (7) and its end extends out of the rotating cavity (5) to contact the ground for cleaning. The connection between the branch air passage (4) and the rotating cavity (5) is located on the side wall of the rotating cavity (5). Gas enters the branch air passage (4) from the side wall of the rotating cavity (5), and during the entry process, it blows the blades (7) and the hollow shaft (6) located in the rotating cavity (5) to rotate.

3. The pneumatically powered brush self-rotating high-efficiency cleaning device according to claim 2, characterized in that, The surface of the blade (7) along the rotation axis is designed with a continuous S-shaped profile. The concave surface of the S-shaped profile forms a contact surface with the incoming airflow, and the incoming airflow blows the blade to drive the blade to rotate.

4. The high-efficiency cleaning device with airflow-powered brush rotation according to claim 2, characterized in that, Along the direction of travel of the cleaning device, the rotor assembly (2) is symmetrically arranged about the main air passage (3), and the branch air passage (4) is located on the side of the rotating chamber (5) close to the main air passage (3), so that the rotor assembly (2) symmetrically located on both sides of the main air passage (3) rotates towards the side where the main air passage (3) is located, and the debris cleaned by the rotor assembly (2) gathers from the outside towards the side where the main air passage (3) is located.

5. The pneumatically powered brush self-rotating high-efficiency cleaning device according to claim 4, characterized in that, The stator (1) has a confluence zone (9) at the center for collecting debris that has not entered the branch air passage (4), and a confluence channel (10) connected to the confluence zone (9) is opened in each rotating cavity (5) along the tangential direction of the blade rotation.

6. The pneumatically powered brush self-rotating high-efficiency cleaning device according to claim 5, characterized in that, A negative pressure suction hole (11) is opened on the main airway (3) at a position corresponding to the confluence zone (9), and a negative pressure environment is formed in the confluence zone (9) through the negative pressure suction hole (11).

7. The pneumatically powered brush self-rotating high-efficiency cleaning device according to claim 6, characterized in that, The main air passage (3) is formed by rotating a hollow tube set on the stator. On the tube section corresponding to the confluence area (9), a negative pressure suction hole (11) is opened on one side and a connecting hole (12) with the size matching the confluence area is opened on the other side. By rotating the hollow tube until the connecting hole (12) corresponds to the confluence area (9), the collected debris is sucked into the main air passage (3).

8. The high-efficiency cleaning device for self-rotating airflow brushes according to claim 1, characterized in that, The main airway (3) and the branch airway (4) are both designed with spiral lines in the same direction.

9. A method of using the cleaning device according to any one of claims 1-8, characterized in that, The main air duct (3) on the stator (1) is connected to the air intake of the external vacuum cleaner and starts the vacuum cleaner's fan, so that negative pressure airflow is generated in the main air duct (3) and the branch air duct (4); the negative pressure airflow enters the rotating chamber (5) where each rotor assembly (2) is located through the branch air duct (4), the airflow drives the rotor assembly (2) to rotate, and at the same time the brush on the rotor assembly (2) rotates and sweeps the ground; the debris generated during sweeping is sucked into the vacuum cleaner through the branch air duct (4) and the main air duct (3) under the suction of the airflow.

10. The method of use according to claim 9, characterized in that, The cleaned debris gathers from the outside towards the main airway (3) and into the confluence area (9) at the bottom of the stator. A negative pressure environment is formed in the confluence area (9) through the negative pressure suction hole (11) on the main airway (3) to collect the debris. When it is necessary to discharge the collected debris, the main airway (3) is rotated so that the connecting hole (12) on the main airway (3) corresponds to the confluence area, and the debris in the confluence area (9) is sucked into the main airway (3). After the debris is discharged, the main airway (3) is rotated back to its original position.

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