Dust collector with two-stage spiral separation structure

Abstract

The invention provides a dust collector with a two-stage spiral separation structure. The dust collector comprises a first-stage spiral separator, a second-stage spiral separator, a first dust collection assembly and a second dust collection assembly, and the first-stage spiral separator and the second-stage spiral separator are sequentially arranged between a dust collection inlet and a filtering structure of the dust collector in a communicating mode in the gas flowing direction; the first spiral channel utilizes the centrifugal force principle to primarily separate large and heavy particles in air flow, the separated particles fall into the first dust collection assembly, and primary particle separation and collection are completed; the second spiral channel also utilizes the centrifugal force principle to separate finer particulate matters in the airflow subjected to the first separation treatment, and the separated particulate matters fall into a second dust collection assembly to finish the second separation and collection of the particulate matters; as the airflow is subjected to two-stage separation treatment, the number of particulate matters reaching the filtering structure is reduced, and the service lives of the filtering structure and the motor are prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and in particular to a vacuum cleaner with a two-stage spiral separation structure. Background Art

[0002] The working principle of a traditional vacuum cleaner is to rely on the suction generated by the motor to suck dust and garbage into the dust bucket of the vacuum cleaner, and set a filtering structure at the front end of the motor for preliminary filtration. However, this simple filtering mechanism cannot effectively prevent small particles such as dust, which easily accumulate on the filtering structure and eventually cause blockage. Therefore, users need to frequently replace or clean the filtering structure, which increases additional usage costs and maintenance work. Moreover, if the filter is not replaced or cleaned in time, the clogged filter will seriously affect the suction effect of the motor, causing the motor load to increase and generate excessive heat, which may cause damage to the motor. In addition, the clogged filtering structure will also reduce the energy efficiency of the vacuum cleaner, making the vacuum cleaner more power-consuming during use.

[0003] Furthermore, the application number is CN201810974260.7, which discloses a cyclone spiral separator and a vacuum cleaner. A set of cyclone spiral separators is added between the air inlet and the motor of the vacuum cleaner. Although it improves the filtering efficiency of the vacuum cleaner to a certain extent and reduces the clogging problem of the filter. However, the following technical problems still exist: the separation of airflow and particulate matter is carried out only by a single set of cyclone spiral separators, and the separation path is relatively short, resulting in limited separation opportunities for particulate matter in the airflow, and some fine particles cannot be effectively separated, resulting in low separation efficiency. In addition, since the cyclone spiral separator is fixedly set at the end of the handheld tube, the overall volume of the handheld tube increases, requiring more space, and making it difficult for users to hold it easily, and the operation becomes more difficult.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the object of the present invention is to provide a vacuum cleaner with a two-stage spiral separation structure. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a vacuum cleaner with a two-stage spiral separation structure, comprising a first-stage spiral separator, a second-stage spiral separator, a first dust collecting assembly and a second dust collecting assembly, wherein the first-stage spiral separator and the second-stage spiral separator are sequentially connected along a gas flow direction and arranged between a dust collection inlet and a filter structure of the vacuum cleaner;

[0008] The first-stage spiral separator includes a first spiral channel for driving the airflow entering from the dust suction inlet to separate the particulate matter for the first time; the first dust collecting assembly is connected to the outlet end of the first spiral channel for collecting the particulate matter generated by the first separation;

[0009] The second-stage spiral separator includes a second spiral channel for driving the airflow and particulate matter to be separated for the second time after the first separation; the second dust collecting assembly is sealed and connected to the outlet end of the second spiral channel for collecting the particulate matter generated by the second separation.

[0010] Preferably, the first-stage spiral separator further comprises a first separation channel, wherein the first separation channel is located on the spiral axis of the first spiral channel and is used for connecting the first spiral channel and the second-stage spiral separator.

[0011] Preferably, a first dust collecting hopper is provided on the outer edge of the first spiral channel for connecting the first spiral channel and the first dust collecting assembly.

[0012] Preferably, the second-stage spiral separator further comprises a second separation channel, wherein the second separation channel is located on the spiral axis of the second spiral channel and is used for connecting the second spiral channel and the filtering structure.

[0013] Preferably, a second dust collecting hopper is provided at the outer edge of the second spiral channel for sealingly connecting the first spiral channel and the second dust collecting assembly.

[0014] Preferably, the first separation channel is sealed and communicated with the second air intake channel via a communicating pipe.

[0015] Preferably, a guide portion with a tapered inner diameter is provided above the inlet end of the second dust collecting assembly.

[0016] Preferably, it also includes a first mounting portion, a second mounting portion and a vacuum cleaner body which are sealed and connected in sequence from top to bottom.

[0017] The first mounting portion is used to mount the filter structure and the motor;

[0018] The second mounting portion is used to mount the first-stage spiral separator and the second-stage spiral separator, and is provided with a dust suction inlet;

[0019] The vacuum cleaner body is used for installing the first dust collecting assembly and the second dust collecting assembly.

[0020] Preferably, the first mounting portion, the second mounting portion and the vacuum cleaner body are detachably connected via a snap-fit ​​assembly.

[0021] The preferred technical solution of the present invention can at least produce the following technical effects:

[0022] The present invention provides a vacuum cleaner with a two-stage spiral separation structure, comprising a first-stage spiral separator, a second-stage spiral separator, a first dust collecting assembly and a second dust collecting assembly, wherein the first-stage spiral separator and the second-stage spiral separator are sequentially connected and arranged between the dust suction inlet and the filtering structure of the vacuum cleaner along the gas flow direction; the first-stage spiral separator comprises a first spiral channel, which is used to drive the airflow entering from the dust suction inlet to be separated from the particles for the first time; the first dust collecting assembly is connected to the outlet end of the first spiral channel, which is used to collect the particles generated by the first separation; the second-stage spiral separator comprises a second spiral channel, which is used to drive the airflow and the particles after the first separation to be separated for the second time; the second dust collecting assembly is sealed and connected to the outlet end of the second spiral channel, which is used to collect the particles generated by the second separation. The present invention uses the suction force generated by the motor to suck dust and garbage from the dust suction inlet, and sequentially passes through the first-stage spiral separator and the second-stage spiral separator for two-stage separation treatment, and the airflow after the two-stage separation treatment is sequentially discharged from the vacuum cleaner through the filtering structure and the motor.

[0023] Specifically, the airflow entering from the dust suction inlet flows into the first-stage spiral separator. When passing through the first spiral channel, the airflow is affected by the centrifugal force, so that the larger and heavier particles are separated under the action of centrifugal force, move downward along the wall of the first spiral channel, and fall into the first dust collecting component, completing the first particle separation and collection.

[0024] The airflow after the initial separation continues to flow into the second-stage spiral separator. When passing through the second spiral channel, it is also affected by the centrifugal force, and the finer particles are also effectively separated. They move downward along the wall of the second spiral channel and fall into the second dust collecting component, completing the second separation and collection of particles. Subsequently, the airflow after two stages of separation reaches the filter structure. Since the airflow undergoes two-stage separation processing, the number of particles reaching the filter structure is greatly reduced, extending the service life of the filter structure and the motor. In addition, through the two-stage collection design, the first dust collecting component and the second dust collecting component can achieve effective graded collection of particles of different sizes, improve the collection efficiency of particles, and facilitate user cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1It is a structural schematic diagram of a vacuum cleaner with a two-stage spiral separation structure provided by the present invention;

[0027] Figure 2 It is a schematic structural diagram of a vacuum cleaner with a two-stage spiral separation structure provided by the present invention, wherein the vacuum cleaner body is removed;

[0028] Figure 3 It is a structural schematic diagram of a second mounting portion, a first-stage spiral separator, a second-stage spiral separator and a filtering structure of a vacuum cleaner with a two-stage spiral separation structure provided by the present invention;

[0029] Figure 4 It is a structural schematic diagram of a second mounting portion, a first-stage spiral separator and a second-stage spiral separator of a vacuum cleaner with a two-stage spiral separation structure provided by the present invention;

[0030] Figure 5 yes Figure 4 A structural diagram from another perspective;

[0031] Figure 6 It is a structural schematic diagram of a second mounting portion and a first-stage spiral separator of a vacuum cleaner with a two-stage spiral separation structure provided by the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the connecting pipeline of a vacuum cleaner with a two-stage spiral separation structure and the second-stage spiral separator provided by the present invention;

[0033] Figure 8 yes Figure 1 Enlarged view of local A.

[0034] In the figure:

[0035] 1. A first mounting portion;

[0036] 2. Second mounting portion; 21. Dust suction inlet; 22. Mounting groove;

[0037] 3. Vacuum cleaner body;

[0038] 4. First air inlet channel; 5. First spiral channel; 6. First separation channel; 7. First dust collecting hopper;

[0039] 8. Second air inlet channel; 9. Second spiral channel; 10. Second separation channel; 11. Second dust collecting hopper; 12. Second dust collecting assembly; 121. Guide portion;

[0040] 13. Connecting pipelines;

[0041] 14. Filter structure;

[0042] 15, first buckle assembly; 151, first mounting seat; 152, first buckle piece; 153, second buckle piece; 154, third buckle piece;

[0043] 16. Second buckle assembly; 161. Second mounting seat; 162. Fourth buckle component; 163. Fifth buckle component. DETAILED DESCRIPTION

[0044] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0045] like Figure 1-Figure 8 As shown, the present invention provides a vacuum cleaner with a two-stage spiral separation structure, comprising a first-stage spiral separator, a second-stage spiral separator, a first dust collecting assembly and a second dust collecting assembly 12, the first-stage spiral separator and the second-stage spiral separator are sequentially connected along the gas flow direction and arranged between the dust suction inlet 21 and the filtering structure 14 of the vacuum cleaner; the first-stage spiral separator comprises a first spiral channel 5, for driving the airflow entering from the dust suction inlet 21 to be separated from the particulate matter for the first time; the first dust collecting assembly is connected to the outlet end of the first spiral channel 5, for collecting the particulate matter generated by the first separation; the second-stage spiral separator comprises a second spiral channel 9, for driving the airflow and the particulate matter after the first separation to be separated for the second time; the second dust collecting assembly 12 is sealed and connected to the outlet end of the second spiral channel 9, for collecting the particulate matter generated by the second separation.

[0046] The present invention uses the suction force generated by the motor to suck dust and garbage from the dust suction inlet, and sequentially passes through the first-stage spiral separator and the second-stage spiral separator for two-stage separation treatment. The airflow after the two-stage separation treatment is sequentially discharged from the dust collector through the filtering structure and the motor.

[0047] Specifically, the airflow entering from the dust suction inlet flows into the first-stage spiral separator. When passing through the first spiral channel 5, the airflow is affected by centrifugal force, so that larger and heavier particles are separated under the action of centrifugal force, move downward along the wall of the first spiral channel 5, and fall into the first dust collection component, completing the first particle separation and collection. The airflow after preliminary separation continues to flow into the second-stage spiral separator. When passing through the second spiral channel 9, it is also affected by centrifugal force, and finer particles are also effectively separated. Move downward along the wall of the second spiral channel 9 and fall into the second dust collection component 12, completing the second particle separation and collection. Subsequently, the airflow after two-stage separation reaches the filter structure 14. Since the airflow undergoes two-stage separation processing, the number of particles reaching the filter structure is greatly reduced, and the service life of the filter structure 14 and the motor is extended. In addition, through the two-stage collection design, the first dust collection component and the second dust collection component 12 realize effective graded collection of particles of different sizes, improve the collection efficiency of particles, and facilitate user cleaning.

[0048] As an optional embodiment, the first-stage spiral separator further includes a first separation channel 6, which is located on the spiral axis of the first spiral channel 5 and is used to connect the first spiral channel 5 and the second-stage spiral separator.

[0049] Furthermore, the first-stage spiral separator also includes a first air inlet channel 4, and the first air inlet channel 4, the first spiral channel 5 and the first separation channel 6 are connected in sequence along the gas flow direction; the inlet end of the first air inlet channel 4 is connected to the dust suction inlet, and the outlet end of the first air inlet channel 4 is connected to the inlet end of the first spiral channel 5 tangentially.

[0050] Since the first air inlet channel 4 is tangentially connected to the first spiral channel 5, the airflow enters the first spiral channel 5 in a tangential direction, and the airflow is fully affected by the centrifugal force, so that the larger and heavier particles are separated under the action of the centrifugal force, move downward along the wall of the first spiral channel 5, and fall into the first dust collection component, completing the first particle separation and collection. Subsequently, the airflow after the first separation process passes through the first separation channel 6 and flows into the second-stage spiral separator.

[0051] As an optional implementation, a first dust collecting hopper 7 is provided at the outer edge of the first spiral channel 5 for connecting the first spiral channel 5 and the first dust collecting assembly.

[0052] Furthermore, the first spiral channel 5 is designed to spiral downward along the gas flow direction, and its lower portion is an open structure.

[0053] Since the first spiral channel 5 is designed to spiral downward, the airflow path is optimized and the airflow is better guided, so that the airflow can fully utilize the centrifugal force to separate the particles during the flow. The particles are thrown to the wall of the first spiral channel 5 and move downward along the wall to enter the first dust hopper 7.

[0054] The inlet end of the first separation channel 6 extends into the first dust collecting hopper 7 .

[0055] The inner diameter of the first dust collecting hopper 7 gradually decreases from top to bottom, so that its inner wall surface forms a guide slope, which can extend the path of centrifugal action to a certain extent, so that the airflow can be subjected to the centrifugal force for a longer time in the first dust collecting hopper 7, and the particles in the airflow can be separated more effectively, thereby improving the separation efficiency. Subsequently, the separated particles can smoothly fall into the first dust collecting assembly along the guide slope of the first dust collecting hopper 7, and the airflow after the first separation process flows into the second-stage spiral separator through the first separation channel 6.

[0056] As an optional embodiment, the second-stage spiral separator further includes a second separation channel 10 , which is located on the spiral axis of the second spiral channel 9 and is used to connect the second spiral channel 9 and the filtering structure 14 .

[0057] Furthermore, the second-stage spiral separator also includes a second air inlet channel 8, and the second air inlet channel 8, the second spiral channel 9 and the second separation channel 10 are connected in sequence along the gas flow direction; the inlet end of the second air inlet channel 8 is connected to the first separation channel 6, and the outlet end of the second air inlet channel 8 is connected tangentially to the inlet end of the second spiral channel 9.

[0058] After the preliminary separation, the airflow enters the second air inlet channel 8 through the first separation channel 6, and then enters the second spiral channel 9 in a tangential direction. It is also subjected to the centrifugal force, and the finer particles are effectively separated, moving downward along the wall of the second spiral channel 9 and falling into the second dust collecting assembly 12, completing the second particle separation and collection. Subsequently, the airflow after the two-stage separation treatment passes through the second separation channel 10 and reaches the filter structure 14. Since the airflow undergoes two-stage separation treatment, the number of particles reaching the filter structure 14 is greatly reduced, and the service life of the filter structure 14 is extended.

[0059] As an optional implementation, a second dust collecting hopper 11 is provided at the outer edge of the second spiral channel 9 for sealingly connecting the second spiral channel 9 and the second dust collecting assembly 12 .

[0060] Furthermore, the second spiral channel 9 is designed to spiral downward along the gas flow direction, and its lower portion is an open structure.

[0061] Since the second spiral channel 9 is designed to spiral downward, the airflow path is optimized and the airflow is better guided, so that the airflow can fully utilize the centrifugal force to separate finer particles during the flow process. The particles are thrown to the wall of the second spiral channel 9 and move downward along the wall to enter the second dust hopper 11.

[0062] The inlet end of the second separation channel 10 extends into the second dust collecting hopper 11 , and the second separation channel 10 is arranged in parallel with the first separation channel 6 .

[0063] The inner diameter of the second dust hopper 11 gradually decreases from top to bottom, so that its inner wall forms a guide slope, which can extend the path of centrifugal action to a certain extent, so that the airflow is subjected to the centrifugal force for a longer time in the second dust hopper 11, and the particles in the airflow are more effectively separated, further improving the separation efficiency. Subsequently, the separated particles can smoothly fall into the second dust collection assembly 12 along the guide slope of the second dust hopper 11. The airflow after two separation processes flows into the filter structure 14 through the second separation channel 10.

[0064] In addition, the particles separated by the first-stage spiral separator are collected by the first dust collection assembly, which can accommodate a large number of larger particles, reducing the need for frequent cleaning. The finer particles separated by the second-stage spiral separator are collected by the second dust collection assembly 12. Such a graded separation design enables the vacuum cleaner to more effectively separate and collect particles of different sizes, making it easier for users to clean.

[0065] As an optional embodiment, the first separation channel 6 is sealedly connected to the second intake channel 8 via a connecting pipe 13 .

[0066] Furthermore, the connecting pipe 13 adopts a multi-section elbow connection structure, which can be flexibly designed according to the use requirements. Figure 7 As shown, the connecting pipe 13 of this embodiment adopts a three-section curved pipe connection structure. Moreover, the inner wall of the curved section is a flow-guiding curved surface to optimize the flow of airflow.

[0067] The function of the connecting pipeline 13 is to connect the first-stage spiral separator and the second-stage spiral separator, and to allow the airflow to enter the second spiral channel 9 through the second air inlet channel 8 in a tangential direction.

[0068] It should be noted that the specific sealing connection between the connecting pipeline 13 and the first separation channel 6 and the second intake channel 8 adopts the conventional detachable sealing design between pipelines in the prior art, which will not be described in detail here.

[0069] As an optional embodiment, a guide portion 121 with a tapered inner diameter is provided above the inlet end of the second dust collecting assembly 12 .

[0070] This arrangement can guide the outlet end of the second dust collecting hopper 11 to be inserted into the inlet end of the second dust collecting assembly 12, so that the gap between the two is gradually reduced, and finally a tight sealing connection is formed, effectively preventing particulate matter from leaking from the connection between the two.

[0071] As an optional embodiment, it also includes a first mounting portion 1, a second mounting portion 2 and a vacuum cleaner body 3 which are sealed and connected in sequence from top to bottom.

[0072] The first mounting portion 1 is used to mount the filter structure and the motor;

[0073] The second mounting portion 2 is used to mount the first-stage spiral separator and the second-stage spiral separator, and is provided with a dust suction inlet 21;

[0074] The vacuum cleaner body 3 is used for installing the first dust collecting assembly and the second dust collecting assembly 12 .

[0075] Furthermore, the first-stage spiral separator and the second dust collecting hopper 11 are integrally formed with the first mounting portion 1 by injection molding.

[0076] like Figure 3 , Figure 4 As shown, a mounting groove 22 is provided on the second mounting portion 2 for mounting the second-stage spiral separator and part of the connecting pipeline 13 .

[0077] In addition, since the first-stage spiral separator and the second-stage spiral separator are arranged in the second mounting portion 2 rather than at the end of the hand-held tube in the prior art, the volume and weight of the hand-held tube will not be increased, so that the user can easily hold and operate the hand-held tube.

[0078] The first dust collecting component can adopt an independently set dust collecting bucket, and the dust collecting chamber of the vacuum cleaner body 3 can also be directly used as the first dust collecting component. The second dust collecting component 12 adopts an independently set inner diameter tapered dust collecting bucket. The specific specifications of the first dust collecting component and the second dust collecting component 12 can be flexibly designed according to the use requirements.

[0079] As an optional implementation, the first mounting portion 1, the second mounting portion 2 and the vacuum cleaner body 3 are detachably connected via a snap-fit ​​assembly.

[0080] Further, such as Figure 1 , Figure 8As shown, the buckle assembly includes a first buckle assembly 15, and the first buckle assembly 15 includes a first mounting seat 151, a first buckle 152, a second buckle 153 and a third buckle 154. The first mounting seat 151 is rotatably arranged on the vacuum cleaner body 3, and the first buckle 152 is rotatably arranged on the first mounting seat 151; the second buckle 153 is rotatably arranged on the second mounting portion 2, and is provided with a first buckle groove adapted to the first buckle 152; the third buckle 154 is arranged on the first mounting portion 1, and is provided with a second buckle groove adapted to the second buckle 153.

[0081] There are two sets of first buckle assemblies 15 , which are symmetrically arranged to improve the connection stability between the first mounting portion 1 , the second mounting portion 2 and the vacuum cleaner body 3 .

[0082] The first mounting seat 151 is connected to the cleaner body 3 via a rotating shaft, the rotating end of the first fastener 152 is connected to the first mounting seat 151 via a rotating shaft, and the hook end of the first fastener 152 is engaged with the first engaging groove. The second fastener 153 is rotatably connected to the second mounting portion 2 via a rotating shaft, and its hook end is engaged with the second engaging groove of the third fastener 154.

[0083] First, align the hook end of the second fastener 153 with and snap it into the second fastening groove of the third fastener 154, so that the first mounting portion 1 and the second mounting portion 2 are firmly connected together. Then align the hook end of the first fastener 152 with and snap it into the first fastening groove on the second fastener 153, so that the second mounting portion 2 and the cleaner body 3 are firmly connected together.

[0084] The buckle assembly also includes a second buckle assembly 16, which includes a second mounting seat 161, a fourth buckle 162 and a fifth buckle 163. The second mounting seat 161 is arranged on the second mounting portion 2, the fourth buckle 162 is rotatably arranged on the second mounting seat 161, and the fifth buckle 163 is arranged on the vacuum cleaner body 3 and is engaged with the fourth buckle 162.

[0085] Furthermore, there are two sets of second buckle components 16, which are symmetrically arranged.

[0086] The rotating end of the fourth fastener 162 is rotatably connected to the second mounting seat 161 via a rotating shaft, and the hook end of the fourth fastener 162 is engaged with the fifth fastener 163 .

[0087] The hook end of the fourth fastener 162 is aligned with the fifth fastener 163, and an external force is applied to fasten the two together, so that the second mounting portion 2 and the vacuum cleaner body 3 are firmly connected together.

[0088] It should be noted that the specific snap-fitting structure of the first snap-fit ​​assembly 15 and the second snap-fit ​​assembly 16 adopts the existing technology, and no further details will be given as long as the function of rotational snap-fitting can be achieved.

[0089] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0090] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0091] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation portion", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "an example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0093] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A vacuum cleaner with a two-stage spiral separation structure, characterized in that: It comprises a first-stage spiral separator, a second-stage spiral separator, a first dust collecting assembly and a second dust collecting assembly, wherein the first-stage spiral separator and the second-stage spiral separator are sequentially connected along the gas flow direction and arranged between the dust collection inlet and the filter structure of the dust collector; The first-stage spiral separator includes a first spiral channel for driving the airflow entering from the dust suction inlet to separate the particulate matter for the first time; the first dust collecting assembly is connected to the outlet end of the first spiral channel for collecting the particulate matter generated by the first separation; The second-stage spiral separator includes a second spiral channel for driving the airflow and particulate matter to be separated for the second time after the first separation; the second dust collecting assembly is sealed and connected to the outlet end of the second spiral channel for collecting the particulate matter generated by the second separation.

2. A vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: The first-stage spiral separator also includes a first separation channel, which is located on the spiral axis of the first spiral channel and is used to connect the first spiral channel and the second-stage spiral separator.

3. The vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: A first dust collecting hopper is disposed at the outer edge of the first spiral channel, and is used to connect the first spiral channel and the first dust collecting assembly.

4. The vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: The second-stage spiral separator also includes a second separation channel, which is located on the spiral axis of the second spiral channel and is used to connect the second spiral channel and the filtering structure.

5. The vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: A second dust collecting hopper is disposed at the outer edge of the second spiral channel, and is used for sealingly connecting the first spiral channel and the second dust collecting assembly.

6. The vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: The first separation channel is in sealed communication with the second air intake channel via a communication pipeline.

7. The vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: A guide portion with a gradually decreasing inner diameter is arranged above the inlet end of the second dust collecting assembly.

8. The vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: It also includes a first mounting portion, a second mounting portion and a vacuum cleaner body which are sealed and connected in sequence from top to bottom. The first mounting portion is used to mount the filter structure and the motor; The second mounting portion is used to mount the first-stage spiral separator and the second-stage spiral separator, and is provided with a dust suction inlet; The vacuum cleaner body is used for installing the first dust collecting assembly and the second dust collecting assembly.

9. The vacuum cleaner with a two-stage spiral separation structure according to claim 1, characterized in that: The first mounting portion, the second mounting portion and the vacuum cleaner body are detachably connected via a snap-fit ​​assembly.

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