A rotary valve structure for a vacuum cleaner dust cup

Abstract

This invention discloses a rotary valve structure for a vacuum cleaner dust cup, comprising: an outer dust cup with multiple first cavities inside, a first connecting hole on a partition, and a first dust discharge port corresponding to the dust discharge channel of the vacuum cleaner base station; and an inner dust cup rotatably connected to the partition, with a second connecting hole and a second dust discharge port, and a linkage component on the outer side of the inner dust cup corresponding to a rotating guide groove on the vacuum cleaner base station. This invention, through the outer and inner dust cups forming a rotary valve structure, allows the inner dust cup to rotate in conjunction with the rotating guide groove during assembly of the vacuum cleaner main unit and the base station. This rotation blocks the dust collection cavities and their corresponding filter structures, preventing backflow of dust during dust cup discharge and recycling, which could contaminate the filter structure. It also allows for the separate discharge of dust, hair, and other dirt of different particle sizes trapped in each dust collection cavity, preventing blockage of the dust discharge channel and ensuring the cleanliness, convenience, and efficiency of the vacuum cleaner.

Description

Technical Field

[0001] This invention relates to the field of vacuum cleaner technology, specifically a rotary valve structure for a vacuum cleaner dust cup. Background Technology

[0002] When common vacuum cleaners discharge dirt and debris collected inside the dust cup's collection chamber, it usually requires disassembling the dust cup structure or using a vacuum cleaner base station. However, for dust cups with more complex structures and multiple collection chambers, the waste discharge operation is generally cumbersome and troublesome, and is prone to spillage, contaminating the vacuum cleaner main unit, the filter structure inside the dust cup, the operator, and the surrounding environment. This leads to inconvenience in operation and less-than-clean vacuum cleaning. Summary of the Invention

[0003] The purpose of this invention is to address the problem that when performing waste removal operations on dust cups with complex structures and multiple dust collection chambers, the conventional vacuum cleaner main unit, base station structure, and operation methods are cumbersome and troublesome, and are prone to waste spillage, contaminating the vacuum cleaner main unit, the filter structure inside the dust cup, the operator, and the surrounding environment, thereby causing inconvenience in operation and insufficient cleanliness of the vacuum cleaner. Therefore, this invention provides a rotary valve structure for the dust cup of a vacuum cleaner.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a rotary valve structure for a vacuum cleaner dust cup, comprising a dust cup structure disposed on the vacuum cleaner main unit and plugged into and associated with a vacuum cleaner base station, wherein the vacuum cleaner main unit is plugged into and associated with the vacuum cleaner base station, and the dust cup structure comprises:

[0005] The external dust cup is internally divided into multiple first cavities by a partition, and the partition is provided with a first connecting hole;

[0006] The partition has a first filter structure at the bottom of the first connecting hole;

[0007] The outer dust cup is provided with a first dust discharge port and a rotating guide hole on its side, and the first dust discharge port corresponds to the dust discharge channel in the vacuum cleaner base station.

[0008] An inner dust cup is inserted into the first cavity and rotatably connected to the partition plate. A second connecting hole corresponding to the first connecting hole is provided at the bottom, and a second dust discharge port corresponding to the first dust discharge port is provided on the side. The second connecting hole and the second dust discharge port are connected to the second cavity inside the inner dust cup. A second filter structure is provided in the second cavity.

[0009] Several linkage components extend outward from the outer side of the inner dust cup. The linkage components pass through the rotary guide hole and are slidably connected to the rotary guide groove on the vacuum cleaner base station.

[0010] As a further description of the above technical solution:

[0011] The vacuum cleaner main unit is provided with a dust collection structure, which is inserted into the vacuum cleaner base station. The outer dust cup is provided with a dust cup inlet on its side, which is connected to the inner air duct of the dust collection structure. The inner end of the dust cup inlet is connected to the first filter structure.

[0012] A dust cup cover is provided at the bottom of the external dust cup.

[0013] As a further description of the above technical solution:

[0014] A connecting seat is provided in the center of the partition, and the bottom of the inner dust cup is opened and assembled on the connecting seat through a bearing and a rotating shaft.

[0015] As a further description of the above technical solution:

[0016] The partition is provided with a first guide groove at its edge, and the inner dust cup is provided with a second guide groove on the outer side of its bottom. The second guide groove and the first guide groove are joined together, and a number of ball bearings are provided between them.

[0017] As a further description of the above technical solution:

[0018] The outer dust cup is inserted and snapped into the mounting bracket of the vacuum cleaner main unit, and the inner dust cup is rotatably connected and assembled on the mounting bracket.

[0019] As a further description of the above technical solution:

[0020] The vacuum cleaner base station is provided with a jacket structure, which is a U-shaped structure, with a notch at the side opening that guides and fits into the corresponding structure of the vacuum cleaner main unit;

[0021] The dust discharge channel includes a conical channel at the bottom of the jacket structure and a curved channel on the side. The conical channel is connected to the bottom of the outer dust cup, and the curved channel is connected to the first dust discharge port.

[0022] As a further description of the above technical solution:

[0023] Several of the rotary guide grooves are arranged at equal intervals along the inner circumferential direction of the jacket structure.

[0024] As a further description of the above technical solution:

[0025] The rotary guide groove is a spiral groove arranged at an inclination to the cross-section of the jacket structure.

[0026] As a further description of the above technical solution:

[0027] The vacuum cleaner base station is provided with a first connecting pipe and a second connecting pipe that are respectively inserted into the conical channel and the curved channel;

[0028] The first connecting pipe and the second connecting pipe are respectively provided with a first connecting port and a second connecting port for docking with the dust cup of the base station.

[0029] As a further description of the above technical solution:

[0030] The base station dust cup is provided with a third connection port and a fourth connection port that are tightly connected to the first connection port and the second connection port respectively. The third connection port is provided with a base station dust cup inlet. The base station dust cup inlet and the fourth connection port are connected to the dust storage cavity inside the base station dust cup.

[0031] The dust storage chamber is provided with an exhaust port, and a filter is installed on the exhaust port.

[0032] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0033] 1. The rotary valve structure formed by the outer and inner dust cups in this vacuum cleaner's dust cup allows for airflow communication between the dust collection chambers and the filter structure within the dust cup (comprising the first and second chambers) during cleaning. After the vacuum cleaner main unit and base unit are connected and assembled, the linkage mechanism, in conjunction with the rotating guide groove, rotates the inner dust cup, blocking the flow of dust from each dust collection chamber and the corresponding filter structure. This enables the discharge, recycling, and cleaning of dust from the dust cup. This design prevents backflow of dust, which could contaminate the filter structure, and ensures that each dust collection chamber traps dust and lint of different particle sizes. The separate discharge of dirt and grime avoids the common problem of dirt and grime from various dust collection chambers being mixed and discharged into the dust cup and then recycled through the dust collector, which leads to the mixing of dirt and grime of different particle sizes and interpenetration between them. This causes blockages in the dust discharge channel, preventing the dirt and grime from being discharged from the dust cup and recycled to the dust collector. Therefore, this design ensures efficient, long-term, and low-cleaning-frequency use of the filtration structure, as well as efficient discharge and recycling of dirt and grime from the dust cup, guaranteeing a clean, convenient, and user-friendly vacuum cleaner operation and a good user experience.

[0034] 2. Based on the central guide structure of the rotating shaft, connecting seat, and bearings for the rotational movement of the inner and outer dust cups, when the inner dust cup rotates, the above structure ensures that the dust cup can rotate stably along the rotating shaft and connecting seat when the dust cup is pressed into the vacuum cleaner base station. This ensures that the inner dust cup rotates along the same axis as the outer dust cup, thereby reducing radial misalignment during the rotation of the inner dust cup, reducing friction and collision between the inner and outer dust cups during movement, and reducing the rotational resistance of the inner dust cup. This makes the linkage of the inner dust cup smoother when the vacuum cleaner main unit is assembled with the vacuum cleaner base station, and makes the switching of the communication state of each cavity and filter structure in the vacuum cleaner dust cup smoother and easier to operate. A first guide groove is set on the edge of the partition, and a second guide groove is set on the outer side of the bottom of the inner dust cup. The second guide groove is joined with the first guide groove, and several ball bearings are set between them. The above structure can set the bottom surfaces of the inner and outer dust cups at different heights. By using ball bearings to achieve radial positioning of the second guide groove and the first guide groove, the radial positioning of the inner and outer dust cups can be guaranteed. Under the premise of low wear and collision rotation, the contact area of ​​the bottom surfaces of the two is reduced, so as to further reduce the rotational resistance of the two.

[0035] 3. The rotating guide groove is a spiral groove arranged at an inclination to the cross-section of the jacket structure. This structural design, combined with the operation of pressing the dust cup structure into the jacket structure, allows the rotating guide groove to exert a horizontal tangential force on the inner dust cup as it moves downwards, causing it to rotate. This enables the simultaneous switching of the connection states between the vacuum cleaner main unit and the base station, as well as the various cavities inside the dust cup and the corresponding filter structure, improving operational convenience. Furthermore, during the rotation of the inner dust cup, the dirt and debris in the second cavity are shaken and dispersed, making subsequent removal of dirt and debris more convenient, efficient, and quick, and easier to operate. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a diagram showing the usage state of a rotary valve structure for a dust cup and an assembly structure for the main unit of a vacuum cleaner.

[0038] Figure 2 This is an exploded structural diagram of the rotary valve structure of a vacuum cleaner dust cup and its assembly structure with the vacuum cleaner main unit.

[0039] Figure 3 This is a schematic diagram of the outer dust cup in a rotary valve structure for a vacuum cleaner dust cup.

[0040] Figure 4 This is a schematic diagram of a vacuum cleaner base station corresponding to a rotary valve structure of a vacuum cleaner dust cup.

[0041] Figure 5 A cross-sectional view of the rotary valve structure of a vacuum cleaner dust cup and the assembly structure of the vacuum cleaner main unit in use. Figure 1 .

[0042] Figure 6 A cross-sectional view of the assembly structure of a rotary valve for a vacuum cleaner dust cup with the vacuum cleaner main unit and vacuum cleaner base station in use. Figure 2 .

[0043] Figure 7 This is a partial structural diagram of a vacuum cleaner base station corresponding to a rotary valve structure of a vacuum cleaner dust cup.

[0044] Figure 8 This is a schematic diagram of the base station dust cup in a vacuum cleaner base station, corresponding to a rotary valve structure for a vacuum cleaner dust cup.

[0045] Legend:

[0046] 1. Vacuum cleaner main unit; 11. Mounting bracket; 2. Vacuum cleaner dust cup structure; 21. Outer dust cup; 211. Dust cup inlet; 212. First filter structure; 213. Partition; 2131. Connecting seat; 2132. First guide groove; 214. First cavity; 215. First connecting hole; 216. First dust discharge port; 217. Rotary guide hole; 22. Inner dust cup; 221. Second cavity; 222. Second filter structure; 223. Second connecting hole; 224. Second dust discharge port; 225. 226. Rotating shaft; 227. Linkage component; 228. Second guide groove; 229. Ball bearing; 23. Dust cup cover; 3. Dust collection structure; 4. Vacuum cleaner base station; 41. Jacket structure; 42. Rotating guide groove; 43. Notch; 44. Conical channel; 441. First connecting pipe; 442. First connection port; 45. Curved channel; 451. Second connecting pipe; 452. Second connection port; 46. Base station dust cup; 461. Third connection port; 462. Base station dust cup inlet; 463. Fourth connection port. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0052] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] Example 1:

[0054] Please see Figure 1-8 This invention provides a technical solution: a rotary valve structure for a vacuum cleaner dust cup, including a vacuum cleaner dust cup structure 2 disposed on the vacuum cleaner main unit 1 and plugged into and associated with a vacuum cleaner base station 4, wherein the vacuum cleaner main unit 1 and the vacuum cleaner base station 4 are plugged into and associated, and the vacuum cleaner dust cup structure 2 includes:

[0055] The outer dust cup 21 is internally divided into multiple first cavities 214 by a partition 213. The partition 213 is provided with a first connecting hole 215. The partition 213 is provided with a first filter structure 212 at the bottom of the first connecting hole 215. The outer dust cup 21 is provided with a first dust discharge port 216 and a rotating guide hole 217 on its side. The first dust discharge port 216 corresponds to the dust discharge channel in the vacuum cleaner base station 4.

[0056] The inner dust cup 22 is inserted into the first cavity 214 and rotatably connected to the partition 213. A second connecting hole 223 corresponding to the first connecting hole 215 is provided at the bottom, and a second dust discharge port 224 corresponding to the first dust discharge port 216 is provided on the side. The second connecting hole 223 and the second dust discharge port 224 connect to the second cavity 221 inside the inner dust cup 22. A second filter structure 222 is provided inside the second cavity 221. Several linkages 226 extend outward from the outer side of the inner dust cup 22. The linkages 226 pass through the rotating guide hole 217 and are slidably connected to the rotating guide groove 42 on the vacuum cleaner base station 4. The above filter structure is a cone-shaped filter or HEPA filter commonly used for dust filtration in dust cups.

[0057] like Figure 5 As shown, when cleaning the surface to be cleaned, the outer dust cup 21 and the inner dust cup 22 are locked in place. At this time, the first connecting hole 215 and the second connecting hole 223 are connected, and the first dust outlet 216 and the second dust outlet 224 are staggered. When the vacuum motor in the vacuum cleaner main unit 1 is running, an airflow is formed in the dust cup structure 2 as shown by the arrow in the figure. The airflow sucks the dirt and debris from the surface to be cleaned into the dust collection structure 3, and flows through the dust cup inlet 211, the first cavity 214, the first filter structure 212, the first connecting hole 215, the second connecting hole 223, the second cavity 221, and the second filter structure 222 in sequence to achieve air filtration and purification. Clean air is discharged from the vacuum cleaner. Dirt and debris of different particle sizes trapped by the corresponding filter structures in the first cavity 214 and the second cavity 221 settle to the bottom for temporary storage.

[0058] In this embodiment, the first connecting hole 215 and the second connecting hole 223 are both eccentrically set on the corresponding dust cups. After the two are connected, their axes coincide to ensure smooth and lossless airflow between different cavities, and to ensure that the vacuum cleaner's suction power is not lost and that it can collect dust efficiently.

[0059] When assembling and connecting the vacuum cleaner dust cup 2 and the vacuum cleaner base station 4, the vacuum cleaner dust cup structure 2 is inserted into the vacuum cleaner base station 4. The vacuum cleaner main unit 1 and the vacuum cleaner base station 4 are connected and guided. The linkage 226 is guided by the rotating guide groove 42, so that the inner dust cup 22 rotates along the common axis with the outer dust cup 21, causing the first connecting hole 215 and the second connecting hole 223 to be misaligned. The inner dust cup 22 and the outer dust cup 21 are engaged and positioned, blocking each dust collection chamber and the corresponding filter structure. The first dust outlet 216 and the second dust outlet 224 are connected, so that the vacuum motor in the vacuum cleaner main unit 1 can run in reverse or the motor in the vacuum cleaner base station 4 can run, realizing the independent discharge of dirt and garbage from each chamber in the vacuum cleaner dust cup structure 2. Specifically, the airflow inside the vacuum cleaner is as follows: Figure 6 As shown.

[0060] When the vacuum cleaner main unit 1 is pulled out, the rotating guide groove 42 drives the inner dust cup 22 to rotate and reset, realizing the switching of the vacuum cleaner dust cup state, and the next stage of dust collection and cleaning operation can be carried out.

[0061] The rotary valve structure formed by the outer dust cup 21 and the inner dust cup 22 in this vacuum cleaner allows for airflow communication between the dust collection chambers and the filter structure within the dust cup (comprising the first chamber 214 and the second chamber 221) during cleaning. After the vacuum cleaner main unit 1 is assembled with the vacuum cleaner base station 4, the linkage 226, in conjunction with the rotary guide groove 42, rotates the inner dust cup 22, blocking the dust collection chambers and their corresponding filter structures. This enables the discharge, collection, and cleaning of dust from the dust cup. This design prevents backflow of dust, which could contaminate the filter structure, and ensures that each dust collection chamber retains different amounts of dust. The separate discharge of dust, hair, and dirt of different particle sizes avoids the common problem of mixed dirt and debris in the dust collection chambers of vacuum cleaners, which is discharged into the dust cup and then recycled through the vacuum cleaner base station. This avoids the mixing and interpenetration of dirt and debris of different particle sizes, which can clog the dust discharge channel and prevent the dust from being discharged from the dust cup and recycled to the vacuum cleaner base station. This ensures the efficient, long-term, and low-cleaning-frequency use of the filtration structure, as well as the efficient discharge and recycling of dirt and debris from the dust cup, guaranteeing a clean, convenient vacuum cleaner operation and a good user experience.

[0062] The vacuum cleaner main unit 1 is provided with a dust collection structure 3, which is inserted into the vacuum cleaner base station 4. The outer dust cup 21 is provided with a dust cup inlet 211 on its side. The dust cup inlet 211 is connected to the inner air duct of the dust collection structure 3. The inner end of the dust cup inlet 211 is connected to the first filter structure 212. The bottom of the outer dust cup 21 is provided with a dust cup cover 23.

[0063] In this embodiment, the dust cup cover 23 is elastically hinged on one side with a torsion spring, and magnetically positioned on the other side by a magnet, and is assembled to the bottom of the outer dust cup 21. Figure 5 , 6 As shown. When the vacuum cleaner main unit 1 is in use for dust collection, the dust cup cover 23 is tightly closed. When the vacuum cleaner main unit 1 is assembled on the vacuum cleaner base station 4 and is collecting dirt and debris from the dust cup structure 2, pressing the switch button on the vacuum cleaner main unit 1 causes the vacuum motor inside the vacuum cleaner main unit 1 to run in the opposite direction to its state during dust collection. This creates a negative pressure environment inside the vacuum cleaner base station 4. The relatively high pressure environment inside the dust collection structure 3 and the first chamber 214 creates a reverse airflow between them and the vacuum cleaner base station 4, which pushes open the dust cup cover 23, thus enabling the discharge and collection of debris from the first chamber 214 of the vacuum cleaner dust cup structure 2.

[0064] The outer dust cup 21 is inserted and snapped into the mounting bracket 11 of the vacuum cleaner main unit 1, and the inner dust cup 22 is rotatably connected and assembled on the mounting bracket 11. The above design ensures the stable assembly of the vacuum cleaner dust cup structure 2 and the vacuum cleaner main unit 1, and realizes the smooth, low-resistance rotation and movement of the inner dust cup 22 in the outer dust cup 21, improving the convenience of using the rotary valve structure, and making the vacuum cleaner main unit 1 efficient in vacuuming, docking and assembling with the vacuum cleaner base station 4, and switching between dust collection states.

[0065] Example 2:

[0066] Please see Figure 2-3 5-6. Based on the above embodiment one, preferably, a connecting seat 2131 is provided in the center of the partition 213, and the bottom of the inner dust cup 22 is opened and assembled on the connecting seat 2131 through a bearing and a rotating shaft 225. The bearing is assembled in the connecting seat 2131, and the rotating shaft 225 passes through the connecting seat 2131 and the bearing and is axially positioned, so that it can be used.

[0067] When the inner dust cup 22 rotates, the above structure ensures that when the dust cup 2 is pressed into the vacuum cleaner base station 4, the side linkage 226 of the inner dust cup 22, guided and pushed by the rotation guide groove 42, can stably rotate along the rotation axis 225 and the connecting seat 2131. This ensures that the inner dust cup 22 rotates along the same axis as the outer dust cup 21, thereby reducing the radial misalignment of the inner dust cup 22 during rotation, reducing the friction and collision between the inner dust cup 22 and the outer dust cup 21 during movement, and reducing the rotational resistance of the inner dust cup 22. This makes the linkage of the inner dust cup 22 smoother when the vacuum cleaner main unit 1 is assembled with the vacuum cleaner base station 4, and makes the switching of the communication state of each cavity and filter structure in the vacuum cleaner dust cup 2 smoother and easier to operate.

[0068] The partition 213 is provided with a first guide groove 2132 at its edge, and the inner dust cup 22 is provided with a second guide groove 227 on the outer side of its bottom. The second guide groove 227 is joined with the first guide groove 2132, and a number of ball bearings 228 are provided between them.

[0069] Based on the central guide structure of the rotating shaft 225 and the connecting seat 2131 for the rotational movement of the inner dust cup 22 and the outer dust cup 21, the above structure can set the bottom surfaces of the inner dust cup 22 and the outer dust cup 21 at intervals. By using the ball bearing 228 to achieve radial positioning of the second guide groove 227 and the first guide groove 2132, the radial positioning of the inner and outer dust cups is ensured. Under the premise of low wear and collision rotational movement, the contact area of ​​the bottom surfaces of the two is reduced, so as to further reduce the rotational movement resistance of the two.

[0070] Example 3:

[0071] Please see Figure 6-8 Based on the above embodiment 1, preferably, the vacuum cleaner base station 4 is provided with a jacket structure 41, the jacket structure 41 is a U-shaped structure, and a notch 43 is provided at the side opening to be guided and sleeved with the corresponding structure of the vacuum cleaner host 1. The dust collection structure 3 is inserted into the notch 43. The dust discharge channel includes a conical channel 44 at the bottom of the jacket structure 41 and a curved channel 45 on the side. The conical channel 44 is connected to the bottom of the outer dust cup 21, and the curved channel 45 is connected to the first dust discharge port 216.

[0072] The vacuum cleaner base station 4 is provided with a first connecting pipe 441 and a second connecting pipe 451 that are respectively inserted into the conical channel 44 and the curved channel 45. The ends of the first connecting pipe 441 and the second connecting pipe 451 are respectively provided with a first connecting port 442 and a second connecting port 452 that are connected to the base station dust cup 46.

[0073] The base station dust cup 46 is provided with a third connection port 461 and a fourth connection port 463 that are tightly connected to the first connection port 442 and the second connection port 452, respectively. The third connection port 461 is provided with a base station dust cup inlet 462. The base station dust cup inlet 462 and the fourth connection port 463 are connected to the dust storage cavity inside the base station dust cup 46. The dust storage cavity is provided with an exhaust port, and a filter is installed on the exhaust port.

[0074] like Figure 6-8As shown, when the above structure discharges and recycles the waste in the inner cavity of the vacuum cleaner dust cup structure 2, the airflow in the second cavity 221 carries the internal dust through the first dust outlet 216, the second dust outlet 224, the curved channel 45, the second connecting pipe 451, the second connecting port 452, and the fourth connecting port 463 into the base station dust cup 46; the airflow in the first cavity 221 carries the internal dust through the dust cup cover 23, the conical channel 44, the first connecting pipe 441, the first connecting port 442, the third connecting port 461, and the base station dust cup inlet 462 into the base station dust cup 46. The airflow is purified by the filter and discharged from the vacuum cleaner base station 4 through the exhaust port. This achieves the independent discharge and recycling of dust of different particle sizes in each cavity of the vacuum cleaner dust cup structure 2 into the base station dust cup 46 of the vacuum cleaner base station 4, ensuring efficient and stable dust recycling, unobstructed operation, improving the vacuum cleaner's dust removal and waste recycling efficiency, and enhancing the user experience.

[0075] Example 4:

[0076] Please see Figure 1 , 4 Based on the above embodiment three, preferably, a plurality of the rotating guide grooves 42 are arranged at equal intervals along the inner circumferential direction of the jacket structure 41 to ensure uniform guiding and pushing on the side of the inner dust cup 22.

[0077] The rotary guide groove 42 is a spiral groove arranged at an inclination to the cross-section of the jacket structure 41.

[0078] The above structural design, combined with the operation of pressing the dust cup structure 2 into the jacket structure 41, allows the rotating guide groove 42 to generate a horizontal tangential force on the inner dust cup 22 as it moves downward, thereby enabling the assembly of the vacuum cleaner main unit 1 and the vacuum cleaner base station 4, and the synchronous switching of the communication states of each cavity inside the dust cup 2 and the corresponding filter structure. This improves the ease of operation. Furthermore, during the rotation of the inner dust cup 22, the dirt and debris in the second cavity 221 are shaken and dispersed, making the subsequent discharge of dirt and debris more convenient, efficient, quick, and easy to operate.

[0079] Furthermore, when the inner dust cup 22 has multiple designs and is used within the outer dust cup 21, the corresponding curved channels 45 should be designed to be staggered, independent, and non-connected. Based on usage simulations, appropriate channel merging can be implemented without causing debris blockage, thereby reducing the size of the vacuum cleaner base station 4 and improving the structural strength of the dust extraction channel. The bottom conical channel 44 and other dust extraction structures corresponding to the first cavity 214 do not require adjustment or design changes.

[0080] Meanwhile, except for the corresponding positions of the inner dust cup 22 and outer dust cup 21 near the vacuum motor side of the vacuum cleaner main unit 1, the sides of the corresponding positions of the inner dust cup 22 and outer dust cup 21 should be provided with an air duct structure that works in conjunction with the insertion of the vacuum cleaner main unit 1 and the vacuum cleaner base station 4 or the rotation of the inner dust cup 22. This ensures that when the vacuum cleaner main unit 1 is removed from the vacuum cleaner base station 4, the air duct structure is not connected to the corresponding positions of the second cavity 221 and outer dust cup 21 in the inner dust cup 22. When the vacuum cleaner main unit 1 is installed on the vacuum cleaner base station 4, the air duct structure is connected to the inner dust cup 22 (except for the inner dust cup 22 at the end of the outer dust cup 21 mentioned above). This allows the second cavity 221 to be connected to the negative pressure environment of the base station dust cup 46 of the vacuum cleaner base station 4 on one side, and to the relatively high pressure environment of the outside world connected to the air duct structure on the other side. This enables the formation of airflow within the cavity, ensuring that the dust and debris inside are fully blown out and efficiently recycled.

[0081] The linkage structure between the linkage component 226, the jacket structure 41, and the rotating guide groove 42 is adjusted. The jacket structure 41 adopts a top-outward expansion structure, such as a stepped structure. The rotating guide groove 42 is arranged at intervals along the height direction inside the jacket structure 41. The linkage component 226 adopts a design where the length gradually increases from the bottom to the top of the outer dust cup 21 and the length extending to the outside of the rotating guide hole 217 increases. This allows each layer of inner dust cup 22 to dock and rotate with the rotating guide groove 42 when the vacuum cleaner main unit 1 and the vacuum cleaner base station 4 are assembled, completing the switching of the internal structure communication state of the vacuum cleaner dust cup. In another embodiment, the linkage component 226 on each layer of inner dust cup 22 has the same length, and the rotating guide groove 42 adopts a wavy structure. When the vacuum cleaner main unit 1 and the vacuum cleaner base station 4 are assembled, the lower layer inner dust cup 22 will be guided by the wavy rotating guide groove 42 to continuously rotate along the outer dust cup 21, thereby dispersing the garbage in the second cavity 221 and ensuring efficient subsequent garbage discharge and recycling.

[0082] In summary, due to the adoption of the above technical solution, the rotary valve structure of the dust cup of a vacuum cleaner in this embodiment has the following advantages compared with the prior art:

[0083] 1. The rotary valve structure formed by the outer and inner dust cups in this vacuum cleaner's dust cup allows for airflow communication between the dust collection chambers and the filter structure within the dust cup (comprising the first and second chambers) during cleaning. After the vacuum cleaner main unit and base unit are connected and assembled, the linkage mechanism, in conjunction with the rotating guide groove, rotates the inner dust cup, blocking the flow of dust from each dust collection chamber and the corresponding filter structure. This enables the discharge, recycling, and cleaning of dust from the dust cup. This design prevents backflow of dust, which could contaminate the filter structure, and ensures that each dust collection chamber traps dust and lint of different particle sizes. The separate discharge of dirt and grime avoids the common problem of dirt and grime from various dust collection chambers being mixed and discharged into the dust cup and then recycled through the dust collector, which leads to the mixing of dirt and grime of different particle sizes and interpenetration between them. This causes blockages in the dust discharge channel, preventing the dirt and grime from being discharged from the dust cup and recycled to the dust collector. Therefore, this design ensures efficient, long-term, and low-cleaning-frequency use of the filtration structure, as well as efficient discharge and recycling of dirt and grime from the dust cup, guaranteeing a clean, convenient, and user-friendly vacuum cleaner operation and a good user experience.

[0084] 2. Based on the central guide structure of the rotating shaft, connecting seat, and bearings for the rotational movement of the inner and outer dust cups, when the inner dust cup rotates, the above structure ensures that the dust cup can rotate stably along the rotating shaft and connecting seat when the dust cup is pressed into the vacuum cleaner base station. This ensures that the inner dust cup rotates along the same axis as the outer dust cup, thereby reducing radial misalignment during the rotation of the inner dust cup, reducing friction and collision between the inner and outer dust cups during movement, and reducing the rotational resistance of the inner dust cup. This makes the linkage of the inner dust cup smoother when the vacuum cleaner main unit is assembled with the vacuum cleaner base station, and makes the switching of the communication state of each cavity and filter structure in the vacuum cleaner dust cup smoother and easier to operate. A first guide groove is set on the edge of the partition, and a second guide groove is set on the outer side of the bottom of the inner dust cup. The second guide groove is joined with the first guide groove, and several ball bearings are set between them. The above structure can set the bottom surfaces of the inner and outer dust cups at different heights. By using ball bearings to achieve radial positioning of the second guide groove and the first guide groove, the radial positioning of the inner and outer dust cups can be guaranteed. Under the premise of low wear and collision rotation, the contact area of ​​the bottom surfaces of the two is reduced, so as to further reduce the rotational resistance of the two.

[0085] 3. The rotating guide groove is a spiral groove arranged at an inclination to the cross-section of the jacket structure. This structural design, combined with the operation of pressing the dust cup structure into the jacket structure, allows the rotating guide groove to exert a horizontal tangential force on the inner dust cup as it moves downwards, causing it to rotate. This enables the simultaneous switching of the connection states between the vacuum cleaner main unit and the base station, as well as the various cavities inside the dust cup and the corresponding filter structure, improving operational convenience. Furthermore, during the rotation of the inner dust cup, the dirt and debris in the second cavity are shaken and dispersed, making subsequent removal of dirt and debris more convenient, efficient, and quick, and easier to operate.

[0086] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rotary valve structure for a vacuum cleaner dust cup, characterized in that, This includes a dust cup structure disposed on the main unit of a vacuum cleaner and connected to a vacuum cleaner base station. The main unit of the vacuum cleaner is connected to the base station, and the dust cup structure includes: The outer dust cup is internally divided into multiple first cavities by a partition. The partition is provided with a first connecting hole. The partition is provided with a first filter structure at the bottom of the first connecting hole. The side of the outer dust cup is provided with a first dust discharge port and a rotating guide hole. The first dust discharge port corresponds to the dust discharge channel in the vacuum cleaner base station. An inner dust cup is inserted into the first cavity and rotatably connected to the partition plate. A second connecting hole corresponding to the first connecting hole is provided at the bottom, and a second dust discharge port corresponding to the first dust discharge port is provided on the side. The second connecting hole and the second dust discharge port are connected to the second cavity inside the inner dust cup. A second filter structure is provided in the second cavity. Several linkage components are provided on the outer side of the inner dust cup. The linkage components pass through the rotating guide hole and are slidably connected to the rotating guide groove on the vacuum cleaner base station. The vacuum cleaner base station is provided with a jacket structure, which is a U-shaped structure. The side opening is provided with a notch that is guided and sleeved with the corresponding structure of the vacuum cleaner host. The dust discharge channel includes a conical channel at the bottom of the jacket structure and a curved channel on the side. The conical channel is connected to the bottom of the outer dust cup, and the curved channel is connected to the first dust discharge port. Several of the rotary guide grooves are arranged at equal intervals along the inner circumferential direction of the jacket structure.

2. The rotary valve structure of a vacuum cleaner dust cup according to claim 1, characterized in that, The vacuum cleaner main unit is provided with a dust collection structure, which is inserted into the vacuum cleaner base station. The outer dust cup is provided with a dust cup inlet on its side, which is connected to the inner air duct of the dust collection structure. The inner end of the dust cup inlet is connected to the first filter structure, and the bottom of the outer dust cup is provided with a dust cup cover.

3. The rotary valve structure of a vacuum cleaner dust cup according to claim 1, characterized in that, A connecting seat is provided in the center of the partition, and the bottom of the inner dust cup is opened and assembled on the connecting seat through a bearing and a rotating shaft.

4. The rotary valve structure of a vacuum cleaner dust cup according to claim 1, characterized in that, The partition is provided with a first guide groove at its edge, and the inner dust cup is provided with a second guide groove on the outer side of its bottom. The second guide groove and the first guide groove are joined together, and a number of ball bearings are provided between them.

5. The rotary valve structure of a vacuum cleaner dust cup according to claim 1, characterized in that, The outer dust cup is inserted and snapped into the mounting bracket of the vacuum cleaner main unit, and the inner dust cup is rotatably connected and assembled on the mounting bracket.

6. The rotary valve structure of a vacuum cleaner dust cup according to claim 1, characterized in that, The rotary guide groove is a spiral groove arranged at an inclination to the cross-section of the jacket structure.

7. The rotary valve structure of a vacuum cleaner dust cup according to claim 1, characterized in that, The vacuum cleaner base station is provided with a first connecting pipe and a second connecting pipe that are respectively inserted into the conical channel and the curved channel. The ends of the first connecting pipe and the second connecting pipe are respectively provided with a first connecting port and a second connecting port for docking with the dust cup of the base station.

8. The rotary valve structure of a vacuum cleaner dust cup according to claim 7, characterized in that, The base station dust cup is provided with a third connection port and a fourth connection port that are tightly connected to the first connection port and the second connection port, respectively. The third connection port is provided with a base station dust cup inlet. The base station dust cup inlet and the fourth connection port are connected to the dust storage cavity inside the base station dust cup. The dust storage cavity is provided with an exhaust port, and a filter is installed on the exhaust port.

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