Handheld vacuum cleaner and vacuum cleaner system

Abstract

The invention relates to a handheld dust collector and a dust collector system, and the handheld dust collector comprises a machine body which is provided with a first air inlet channel, a second air inlet channel, a third air inlet channel and an exhaust port which are communicated with external fluid; a suction motor; a dust collection cup defining a dust collection chamber; the first flow path sequentially passes through the first air inlet channel, the dust collection chamber and the air suction end; the second flow path sequentially passes through the second air inlet channel and the air suction end, and when the second flow path is in a conducting state, external air can bypass the dust collection chamber from the second air inlet channel to directly flow to the air suction end; the third flow path sequentially passes through the third air inlet channel and the dust collection chamber; the flow path switching device is arranged on the machine body and is provided with a first working position and a second working position; when the flow path switching device is located at the first working position, the first flow path is conducted, and the second flow path and the third flow path are cut off; and when the flow path switching device is in the second working position, the second flow path and the third flow path are conducted, and the first flow path is cut off.

Description

Technical Field

[0001] This application relates to the field of vacuum cleaning devices, and more particularly, to a handheld vacuum cleaner and a vacuum cleaner system. Background Art

[0002] After the cleaning work of a handheld vacuum cleaner is completed, the user often needs to manually clean the garbage in the dust collection cup. In the manual cleaning method, the user first needs to open the dust cover to release the garbage collected in the dust collection chamber, and then use hands or tools to clean the inner wall of the dust collection chamber and the mesh filter to remove the dust adhering thereto.

[0003] In order to avoid the user touching the garbage or dust, an automatic cleaning method using a vacuum cleaner base station used in conjunction with the vacuum cleaner has been proposed in the prior art. In the existing vacuum cleaner base station, the vacuum cleaner base station comes with a set of vacuum cleaner systems including a suction motor and an ash storage container; after the vacuum cleaner is used, the vacuum cleaner is stored at the vacuum cleaner base station and the set of vacuum cleaner systems is used to automatically transfer the dust in the dust collection cup of the vacuum cleaner to the ash storage container on the base station. While converting the dust using the vacuum cleaner system, the inner wall of the dust collection chamber and the mesh filter are cleaned.

[0004] The above type of vacuum cleaning base station has a high cost due to its built-in vacuum cleaner system, which limits the user's willingness to purchase. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of this application is to provide a vacuum cleaner and its self-cleaning method that can effectively reduce the vacuum cleaner and facilitate dust cleaning therewith.

[0006] In a first aspect, the present application provides a handheld vacuum cleaner, comprising: a body, on which a first air inlet passage, a second air inlet passage, a third air inlet passage and an exhaust port that are in fluid communication with the outside are provided; a suction motor for generating a suction force and sucking outside air into the first air inlet passage or the second air inlet passage, the suction motor having a suction end and an exhaust end, and the exhaust end being in fluid communication with the exhaust port; a dust collection cup defining a dust collection chamber for receiving and storing dust and debris, the dust collection cup being provided with a dust inlet and an air outlet that are in fluid communication with the dust collection chamber; a first flow path that sequentially passes through the first air inlet passage, the dust collection chamber and the suction end, and the first flow path can, in a conducting state, allow the dust-containing air flow to flow from the first air inlet passage into the dust collection chamber and allow the air entering the dust collection chamber to flow from the air outlet to the suction end; a second flow path that sequentially passes through the second air inlet passage and the suction end, and the second flow path can, in a conducting state, allow the outside air to directly flow from the second air inlet passage to the suction end without entering the dust collection chamber; a third flow path that sequentially passes through the third air inlet passage and the dust collection chamber, and the third flow path can, in a conducting state, allow the air flow entering the third air inlet passage to flow to the dust collection chamber; and a flow path switching device provided on the body and having a first working position and a second working position; when the flow path switching device is in the first working position, the first flow path is conducting and the second flow path and the third flow path are both cut off; when the flow path switching device is in the second working position, the second flow path and the third flow path are both conducting and the first flow path is cut off.

[0007] In the technical solution of the handheld vacuum cleaner of the present application, by providing three flow paths and a flow path switching device, the handheld vacuum cleaner can be switched between different working modes. For example, in the first working position, the vacuum cleaner can normally perform the dust suction work and collect dust and debris through the dust collection chamber; while in the second working position, the vacuum cleaner can directly suck the outside clean air into the suction end of the suction motor of the vacuum cleaner without opening the dust collection chamber. The handheld vacuum cleaner of the present application can provide multiple options for the user to use the handheld vacuum cleaner, and the user experience is good.

[0008] In a possible implementation manner, the flow path switching device may include one or more springs, and the one or more springs keep the flow path switching device in the first working position when the flow path switching device is not affected by an external force.

[0009] In a possible implementation, the flow path switching device may have one or more trigger ends. When an external force is applied to the one or more trigger ends, the flow path switching device switches from the first working position to the second working position.

[0010] In a possible implementation, the one or more trigger ends are configured to be able to apply the external force in the direction towards the inside of the machine body.

[0011] In a possible implementation, the one or more trigger ends are configured to be able to apply the external force in the direction towards the inside of the machine body and upwards.

[0012] In a possible implementation, a flow path switching area is defined between the first air inlet channel, the third air inlet channel and the dust collection port, and part of the flow path switching device is arranged at the flow path switching area.

[0013] In a possible implementation, the flow path switching device includes: a duct switching component, which is movably arranged up and down in the flow path switching area; when the flow path switching device is in the first working position, the duct switching component fluidly connects the first air inlet channel and the dust inlet and cuts off the fluid connection between the third air inlet channel and the dust inlet; when the flow path switching device is in the second working position, the duct switching component fluidly connects the third air inlet channel and the dust inlet and cuts off the fluid connection between the first air inlet channel and the dust inlet.

[0014] In a possible implementation, the machine body may include an air inlet pipe, the air inlet pipe defines the first air inlet channel, and an opening opposite to the dust inlet is provided on the air inlet pipe; when the flow path switching device is in the first working position, the duct switching component fluidly connects the opening and the dust inlet.

[0015] In a possible implementation, the second air inlet channel and the third air inlet channel are arranged side by side and are located between the air inlet pipe and the dust collection cup.

[0016] In a possible implementation, the third air inlet channel has a bottom opening, and the lower part of the duct switching component is close to the bottom opening.

[0017] In a possible implementation, the first flow path includes a downstream channel between the air outlet and the suction end, and the second flow path passes through part of the downstream channel.

[0018] In a possible implementation, a filter is provided in the downstream channel, and both the first flow path and the second flow path pass through the filter.

[0019] In a possible implementation, the flow path switching device includes: a blocking mechanism, the blocking mechanism includes a housing with an internal cavity, a first blocking member and a second blocking member movably disposed in the cavity, the cavity has a first opening, a second opening and a third opening provided on the housing, the first opening is in fluid communication with the air outlet, the second opening is in fluid communication with the suction end, the third opening is in fluid communication with the outside air, and the second air inlet channel passes through the third opening; the blocking mechanism has a first working state and a second working state; when the blocking mechanism is in the first working state, the first blocking member is away from the first opening, the first opening and the second opening are in fluid communication, the second blocking member blocks the third opening, and the second air inlet channel is truncated; when the blocking mechanism is in the second working state, the first blocking member blocks the first opening, the downstream channel is truncated, and the second air inlet channel is in fluid communication with the suction end; when the flow path switching device is in the first working position, the blocking mechanism is in the first working state; when the flow path switching device is in the second working position, the blocking mechanism is in the second working state.

[0020] In a possible implementation, the housing is fixedly provided on the machine body, the second blocking member is movably disposed in the housing in the up and down direction, and the first blocking member is movably disposed in the housing in the left and right direction.

[0021] In a possible implementation, a guiding inclined surface is provided on the first blocking member and / or the second blocking member, and the first blocking member and the second blocking member are in sliding friction contact through the guiding inclined surface.

[0022] In a possible implementation, a first spring is provided between the first blocking member and the housing, and a second spring is provided between the second blocking member and the housing.

[0023] In a possible implementation, the blocking mechanism includes: a push rod, the push rod is movably disposed on the machine body between an upper position and a lower position, and the upper end of the push rod is configured to pass through the third opening and contact the second blocking member.

[0024] In a possible implementation, the second air inlet channel has a lower opening at the bottom, the top rod is located in the second air inlet channel and the lower end of the top rod is close to the lower opening.

[0025] In a second aspect, the present application provides a vacuum cleaner system, comprising the handheld vacuum cleaner of the first aspect and a base station capable of docking with the handheld vacuum cleaner, wherein a fourth flow path is constructed inside the base station, and the fourth flow path has a first end and a second end far away from each other, the first end being constructed to be able to be connected to the exhaust port fluid, and the second end being constructed to be able to be connected to the third air inlet channel fluid.

[0026] The vacuum cleaner system of the present application sends an air flow that has never passed through the dust cup and is discharged by the suction motor into the dust cup, thereby cleaning the residual debris inside the dust cup with the help of the air flow. The user does not need to manually clean the residual debris inside the dust cup, which is more convenient for the user. The base station manufacturing cost of this solution is low, and at the same time, the dust can be cleaned by the vacuum cleaner itself alone, which is easy to use and improves the user experience.

[0027] The advantages of the preferred embodiments of the present application will be partially given in the following description, and partially become apparent from the following description, or be known through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a handheld vacuum cleaner provided in an embodiment of the present application; Figure 2 A schematic diagram of a handheld vacuum cleaner provided in an embodiment of the present application when viewed from above; Figure 3 for Figure 2 A schematic cross-sectional view of the handheld vacuum cleaner along the AA direction; Figure 4 for Figure 1 A schematic cross-sectional view of the handheld vacuum cleaner along the BB direction; Figure 5 for Figure 1 A schematic cross-sectional view of the handheld vacuum cleaner along the CC direction; Figure 6 A schematic diagram of a handheld vacuum cleaner provided in an embodiment of the present application when the first flow path is connected; Figure 7 A schematic diagram of a handheld vacuum cleaner provided in an embodiment of the present application when the second flow path is connected; Figure 8 A schematic diagram of a handheld vacuum cleaner provided in an embodiment of the present application when the third flow path is connected; Figure 9 for Figure 6Enlarged schematic view at position M; Figure 10 Schematic diagram of the air duct switching component provided by an embodiment of the present application; Figure 11 is Figure 10 A cross-sectional schematic view of the air duct switching component along the N-N direction in; Figure 12 Schematic diagram of the structure of the plugging mechanism provided by an embodiment of the present application; Figure 13 is Figure 12 Exploded schematic view of the plugging mechanism of; Figure 14 is Figure 12 Position relationship diagram of the first and second plugging components when the plugging mechanism of is in the first working state; Figure 15 is Figure 12 Position relationship diagram of the first and second plugging components when the plugging mechanism of is in the second working state; Figure 16 is Figure 3 Enlarged schematic view at position P in; Figure 17 is Figure 7 Enlarged schematic view at position Q in; Figure 18 Schematic diagram of the vacuum cleaner system provided by an embodiment of the present application; Figure 19 Schematic diagram of the base station provided by an embodiment of the present application; Figure 20 is Figure 19 Top view schematic diagram of the vacuum cleaner system in; Figure 21 is Figure 20 A cross-sectional schematic view of the vacuum cleaner system along the D-D direction in; Figure 22 is Figure 20 A cross-sectional schematic view of the vacuum cleaner system along the E-E direction in; Figure 23 is Figure 20 A cross-sectional schematic view of the vacuum cleaner system along the F-F direction in. Detailed implementation manners

[0029] The present application relates to a handheld vacuum cleaner and a vacuum cleaner system composed of the handheld vacuum cleaner and a base station. Multiple fluid passages are established inside the handheld vacuum cleaner to meet the needs in different working states. An exemplary base station is configured to be able to guide the airflow discharged from the handheld vacuum cleaner to re-enter the dust collection chamber of the handheld vacuum cleaner, so as to realize the cleaning of the inside of the dust collection chamber. When at least a part of the handheld vacuum cleaner is docked with the base station, the garbage in the dust collection cup of the handheld vacuum cleaner will fall from the dust collection chamber into the garbage storage component (such as: dust bag) on the base station.

[0030] See Figure 1 and Figure 2 which shows a schematic example of the handheld vacuum cleaner 100. As shown, the handheld vacuum cleaner 100 is configured to be carried by the user's hand, and the handheld vacuum cleaner 100 can generally be attached with a cleaning head with a suction nozzle. The handheld vacuum cleaner 100 may include a body 1 and a dust collection cup 2. A handle 4 and a battery pack 10 are provided on the body 1. The dust collection cup 2 performs gas-solid separation and receives and stores the separated dust and debris.

[0031] Combined with Figure 3 、 Figure 4 and Figure 5 As shown, the dust collection cup 2 includes a cylindrical cup body 21, a bottom cover 22 rotatably provided at the bottom of the cup body 21 between a closed position and an open position, and an upper cover 23 provided at the top of the cup body 21. The cup body 21, the bottom cover 22 and the upper cover 23 define a dust collection chamber 24. An air inlet 25 in fluid communication with the dust collection chamber 24 is provided on the side of the cup body 21, and an air outlet 26 in fluid communication with the dust collection chamber 24 is provided on the upper cover 23. A filter screen 27 is also provided in the dust collection chamber 21. The airflow flowing from the dust collection chamber 24 to the air outlet 26 passes through the filtration of the filter screen 27. The bottom cover 22 can be triggered to open; when the bottom cover 22 is in the closed position, the dust collection chamber 24 is closed, and the garbage filtered through the filter screen 27 will be temporarily stored in the dust collection chamber 24; when the bottom cover 22 is in the open position, the dust collection chamber 24 is opened, and the garbage in the dust collection chamber 24 can be discharged through the bottom of the cup body 21.

[0032] A suction motor 3 is provided inside the body 1. The suction motor 3 has a suction end 31 and an exhaust end 32. When the suction motor 3 is working, the airflow can flow from the suction end 31 to the exhaust end 32. The suction motor 3 is configured to push the air or the dust-laden air flow to flow along a set flow path, and the dust-laden air flow can pass through the dust collection chamber 24 during the flow process and complete gas-solid separation. An exhaust port 12 is further provided outside the suction motor 3 on the body 1, and the exhaust port 12 can discharge the air flowing out from the exhaust end 32 of the suction motor 3 to the outside of the body 1.

[0033] As Figure 1 and Figure 3 shown, an air inlet pipe 11 in fluid communication with the outside is provided on the body 1, and a first air inlet channel 5 is formed inside the air inlet pipe 11. The air inlet pipe 11 can generally be connected to a suction hard pipe or a cleaning head with a suction nozzle and introduce the dust-laden air flow into the dust collection chamber 24, and it is configured to be selectively in fluid communication with the dust collection chamber 24. An opening 111 communicating with the first air inlet channel 5 is provided on the pipe wall of the air inlet pipe 11.

[0034] A second air inlet passage 6 is also provided inside the body 1 and is in fluid communication with the outside atmosphere. The second air inlet passage 6 is configured to be selectively in direct air communication with the suction motor 3. It is independent of the first air inlet passage 5 and can generally send outside air directly to the suction end 31 of the suction motor 3 bypassing the dust collection chamber 24.

[0035] As Figure 5 shown, a third air inlet passage 7 is also provided inside the body 1. The third air inlet passage 7 is configured to be selectively in fluid communication with the dust collection chamber 24. The third air inlet passage 7 and the second air inlet passage 6 are arranged side by side front and back and are located between the dust collection cup 2 and the air inlet pipe 11.

[0036] See Figure 6 、 Figure 7 and Figure 8 , a first flow path 81, a second flow path 82, and a third flow path 83 for air flow will be formed inside the above-mentioned handheld vacuum cleaner 100.

[0037] As Figure 4 、 Figure 6 shown, the first flow path 81 sequentially passes through the first air inlet passage 5, the dust inlet 25, the dust collection chamber 24, the air outlet 26, and the suction end 31 of the suction motor 3. When the first flow path 81 is in the conducting state, the dust-containing air flow can enter the dust collection chamber 24 from the first air inlet passage 5 and perform gas-solid separation in the dust collection chamber 24. The air after gas-solid separation can flow out from the air outlet 26 and flow to the suction end 31 of the suction motor 3; the air entering the suction end 31 will flow from the exhaust end 32 of the suction motor 3 to the exhaust port 12 and be discharged to the outside of the body 1.

[0038] As Figure 7 shown, the second flow path 82 sequentially passes through the second air inlet passage 6 and the suction end 31 of the suction motor 3. When the second flow path 82 is in the conducting state, the outside air can directly flow to the suction end 31 of the suction motor 3 from the second air inlet passage 6 bypassing the dust collection chamber 24 of the dust collection cup 2. The air entering the suction end 31 will flow from the exhaust end 32 of the suction motor 3 to the exhaust port 12 and be discharged to the outside of the body 1.

[0039] As Figure 8 shown, the third flow path 83 sequentially passes through the third air inlet passage 7, the dust inlet 25, and the dust collection chamber 24. When the third flow path 83 is in the conducting state, the third air inlet passage 7 is in fluid communication with the dust collection chamber 24, and the external air flow can be sent from the third air inlet passage 7 into the dust collection chamber 24; when the third flow path 83 is in the conducting state, the bottom cover 22 of the dust collection cup 2 can be opened and switched to the open position, and the air flow sent into the dust collection chamber 24 from the third air inlet passage 7 can escape from the bottom of the dust collection cup 2.

[0040] As Figure 4 、 Figure 6 and Figure 7As shown, in this example, the first flow path 81 includes a downstream channel 811 located between the air outlet 26 and the air suction end 31, and a portion of the second flow path 82 is merged with the downstream channel 811. In addition, a filter 812 is also provided in the downstream channel 811. Both the first flow path 81 and the second flow path 82 pass through the filter 812; that is, each airflow is first filtered by the filter 812 before entering the air suction end 31 of the suction motor 3.

[0041] The body 1 is also provided with a flow path switching device. The flow path switching device can switch between a first working position and a second working position. When the flow path switching device is in the first working position, the first flow path 81 is connected and the second flow path 82 and the third flow path 83 are cut off; when the flow path switching device is in the second working position, the second flow path 82 and the third flow path 83 are connected and the first flow path 81 is cut off.

[0042] The flow path switching device is preferably a device that relies on a mechanical mechanism to perform. The flow path switching device includes one or more springs, and the one or more springs keep the flow path switching device in the first working position when the flow path switching device is not subjected to an external force. The flow path switching device has one or more trigger ends, and when an external force is applied to the one or more trigger ends, the flow path switching device switches from the first working position to the second working position. The external force is preferably a force directed toward the inside of the body 1; and the external force is preferably an upward force. For example: the external force can come from the base station to which the handheld vacuum cleaner is docked.

[0043] like Figure 9 As shown, a flow path intersection area P is defined between the first air inlet channel 5 and the third air inlet channel 7. The flow path switching device 9 includes a duct switching component 91 disposed at the flow path intersection area P. The duct switching component 91 can be disposed at the flow path intersection area P so as to move up and down between an upper position and a lower position. Specifically, the duct switching component 91 is elastically supported on the machine body 1 by a spring 95 and a bracket assembly 96.

[0044] like Figure 10 and Figure 11 As shown, the first opening 911 and the second opening 912, which are in airflow communication with each other, the third opening 913 and the fourth opening 914, and the blocking wall 915 are in airflow communication with each other inside the air duct switching component 91. The blocking wall 915 is disposed between the first opening 911 and the third opening 913 and between the second opening 912 and the fourth opening 914, so that there is no airflow communication between the first opening 911 and the third opening 913 and the fourth opening 914, and between the second opening 911 and the third opening 913 and the fourth opening 914. In this example, the third opening 913 and the fourth opening 914 and the blocking wall 915 will actually define the third air inlet channel 7.

[0045] When the flow path switching device is in the first working position, the air duct switching component 91 will be located in the lower position, the first opening 911 of the air duct switching component 91 will be connected with the opening 111 of the air inlet pipe 11, the second opening 911 will be connected with the dust inlet 25, and the fourth opening 914 will be staggered with the dust inlet 25; at this time, the first air inlet channel 5 will be connected with the fluid of the dust collecting chamber 24, and there will be no conduction between the third air inlet channel 7 and the dust collecting chamber 24, that is, the first flow path 81 is connected and the third flow path 82 is cut off.

[0046] When the flow path switching device is in the second working position, the air duct switching component 91 will be moved to the upper position, the air duct switching component 91 will block the opening 111 of the air inlet pipe 11, the fourth opening 914 will be connected to the dust inlet 25, and the second opening 912 will be staggered with the dust inlet 25; at this time, the third air inlet channel 7 will be connected to the fluid of the dust collecting chamber 24, and there will be no conduction between the first air inlet channel 5 and the dust collecting chamber 24, that is, the first flow path 81 will be cut off and the third flow path 82 will be connected.

[0047] like Figure 5 As shown, in this example, the lower portion of the third air inlet channel 7 has a bottom opening 71 , and the lower portion of the air duct switching component 91 is close to the bottom opening 71 .

[0048] With the help of the spring 95, when the external force directly or indirectly applied to the air duct switching component 91 is completely cancelled, the spring 95 will move the air duct switching component 91 to the lower position and keep it at the lower position, so that the first air inlet channel 5 remains in fluid communication with the dust collecting chamber 24. Only when the external force directly or indirectly applied to the air duct switching component 91 can overcome the elastic force of the spring 95, the air duct switching component 91 will move from the lower position to the upper position.

[0049] like Figure 5 and 7 As shown, the flow path switching device includes a blocking mechanism 92. The blocking mechanism 92 is configured to control whether the downstream channel 811 and the second flow path 82 are connected. The blocking mechanism 92 has a first working state and a second working state. Under the action of an external force, the blocking mechanism 92 can be switched from the first working state to the second working state, and after all external forces are removed, the blocking mechanism 92 can be reset to the first working state under the action of one or more springs.

[0050] like Figure 12 and Figure 13 As shown, the blocking mechanism 92 includes a shell 921 composed of an upper shell 9211 and a lower shell 9212 , a first blocking component 922 and a second blocking component 923 arranged in the shell 921 , and a push rod 924 .

[0051] A cavity 9210 is formed inside the housing 921. The cavity 9210 has a first opening 925 and a third opening 927 on the lower housing 9212 and a second opening 926 on the upper housing 9211. The first opening 925 is in fluid communication with the air outlet 26, and the second opening 926 is in fluid communication with the suction end 31. The third opening 927 is in fluid communication with the outside air, and the second air inlet passage 6 passes through the third opening 927.

[0052] The first plugging member 922 is supported in the housing 921 so as to be movable left and right, and a pair of springs 928 are arranged between the first plugging member 922 and the housing 921; the second plugging member 923 is supported in the housing 921 so as to be movable up and down, and a pair of springs 929 are arranged between the second plugging member 923 and the housing 921. The first plugging member 922 is configured to be able to plug the first opening 925 to cut off the fluid communication path between the first opening 925 and the second opening 926. The second plugging member 923 is configured to be able to plug the third opening 927 to cut off the fluid communication path between the third opening 927 and the second opening 926. In order to ensure that when the first opening 925 and the third opening 927 are plugged by the first plugging member 922 and the second plugging member 923, the air flow can be completely isolated, a sealing ring 9251 is arranged at the first opening 925, and a sealing ring 9271 is arranged at the third opening 927.

[0053] In this example, the first plugging member 922 and the second plugging member 923 are respectively provided with a guiding inclined surface 9221 and a guiding inclined surface 9231, and the guiding inclined surface 9221 and the guiding inclined surface 9231 are in contact with each other, so that the first plugging member 922 and the second plugging member 923 are in sliding friction contact through the guiding inclined surface 9221 and the guiding inclined surface 9231.

[0054] The ejector rod 924 is movably arranged in the second air inlet passage 6 of the machine body 1 between the upper position ( Figure 15 、 Figure 17 the position where it is located) and the lower position ( Figure 14 、 Figure 16 the position where it is located), and is vertically aligned with the third opening 927. The upper end portion 9241 of the ejector rod 924 can pass through the third opening 927 and contact the second plugging member 923. When the ejector rod 924 is in the lower position, the upper end portion 9241 of the ejector rod 924 is located below the third opening 927; when the ejector rod 924 is in the upper position, the upper end portion 9241 of the ejector rod 924 moves upward to the third opening 927 and contacts the second plugging member 923.

[0055] As Figure 14 、 Figure 16As shown, when the plugging mechanism 92 is in the first working state, the ejector rod 924 is in the lower position, the first plugging member 922 is away from the first opening 925, the first opening 925 and the second opening 926 are in fluid communication, the second plugging member 923 plugs the third opening 927, the downstream channel 811 is penetrated, and the second air inlet channel 6 is truncated; thus, the first flow path 81 is a through-flow path, while the second flow path 82 is truncated.

[0056] As Figure 15 , Figure 17 shown, when the plugging mechanism 92 is in the second working state, the ejector rod 924 is in the upper position, the first plugging member 922 blocks the first opening 925, the downstream channel 811 between the air outlet 26 and the suction end 31 is truncated, the second plugging member 923 is away from the third opening 927, and the second air inlet channel 6 is in fluid communication with the suction end 31; thus, the second flow path 82 is a through-flow path, while the first flow path 81 is truncated.

[0057] When the flow path switching device is in the first working position, the plugging mechanism 92 will be in the first working state. The ejector rod 924 is not affected by an external force. With the action of the springs 928 and 929, the ejector rod 924 is held in the lower position, the first plugging member 922 leaves the first opening 925, and the second plugging member 923 closes the third opening 927; at this time, the second air inlet channel 6 is truncated, the second flow path 82 is not conducting, the downstream channel 811 between the air outlet 26 and the suction end 31 is in fluid communication, and the first flow path 81 is conducting.

[0058] When the flow path switching device is in the second working position, the plugging mechanism 92 will be in the second working state. The ejector rod 924 is pushed upward by an external force to the upper position. The upper end portion 9241 of the ejector rod 924 passes through the third opening 927 and pushes the second plugging member 923 to move upward. The second plugging member 923 leaves the third opening 927, the third opening 927 is in fluid communication with the second opening 926, the second air inlet channel 6 is in fluid communication with the suction end 31, and the first plugging member 922 closes the first opening 925; at this time, the first flow path 81 is not conducting while the second flow path 82 is in fluid conduction.

[0059] As Figure 18 shown, it schematically shows a vacuum cleaner system according to an embodiment of the present application. The vacuum cleaner system includes the above-mentioned handheld vacuum cleaner 100 and the base station 200. The handheld vacuum cleaner 100 can be docked with the base station 200 and supported on the base station 200.

[0060] As Figure 19As shown, a fourth flow path 201 is constructed inside the base station 200. The fourth flow path 201 has a first end 2011 and a second end 2012 that are away from each other. The first end 2011 is configured to be fluidly connected to the exhaust port 12 in a connectable manner. The second end 2012 is configured to be fluidly connected to the third air intake passage 7 in a connectable manner; that is, the fourth flow path 201 in the base station 200 can collect the air discharged from the exhaust port 12 and send it back into the dust collection chamber 24 via the third air intake passage 7.

[0061] The base station 200 includes a receiving portion 202 configured to support the handheld vacuum cleaner 100 and receive at least a part of the dust collection cup 2 including the bottom cover 22. The base station 200 also provides a dust collection container 203, which is located directly below the dust collection cup 2 and can satisfy that when the bottom cover 22 of the dust collection cup 2 is opened, the dust and debris in the dust collection chamber 24 can fall into the dust collection container 23.

[0062] In this example, in addition to being able to meet the dust collection requirements, the dust collection container 203 also needs to release the air that enters the dust collection container 203 together with the dust and debris. In some embodiments, the dust collection container 23 can be a container made of a breathable material, such as a bag-shaped container made of breathable cloth or breathable paper, or the dust collection container 23 itself is provided with one or more air escape openings.

[0063] The base station 200 is also provided with a first trigger member 204 capable of triggering the air duct switching member 91 to switch from the lower position to the upper position and a second trigger member 205 capable of simultaneously triggering the ejector rod 924 to move from the lower position to the upper position. The first trigger member 204 and the second trigger member 205 can be designed to complete the corresponding triggering work while the handheld vacuum cleaner 100 is docked to the base station 200. In this example, the first trigger member 204 simultaneously defines the second end 2012 of the fourth flow path 201.

[0064] In addition, the base station 200 can also be provided with a third trigger member (not shown in the figure) for triggering the opening of the bottom cover 22 of the dust collection cup 2. When the bottom cover 22 is opened, the dust and debris in the dust collection chamber 24 can just fall into the dust collection container 202 of the base station 200.

[0065] Such as Figure 20 、 Figure 21 、 Figure 22 and Figure 23As shown, after the handheld vacuum cleaner 100 is docked with the base station 200, the flow path switching device is switched from the first working position to the second working position under the action of the first trigger component 204 and the second trigger component 205; when the flow path switching device is switched to the second working position, the first flow path 81 is cut off, and the second flow path 82 and the third flow path 83 are connected; the first end 2011 of the fourth flow path 201 is fluidly connected to the exhaust port 12, and the second end 2012 is fluidly connected to the third air inlet channel 7 of the third flow path 83; at this time, if the suction motor 3 of the handheld vacuum cleaner 100 is started, under the action of the suction motor 3, the outside air will enter from the second air inlet channel 6, along the second flow path 8 2 directly flows to the suction end 31 of the suction motor 3, and then reaches the exhaust port 12 from the exhaust end 32; then enters the fourth flow path 201, and then enters the third air inlet channel 7, and is finally sent to the dust collecting chamber 24; when the bottom cover 22 of the dust cup 2 is opened before the suction motor 3 is started or within a period of time after the start-up, the dust and debris in the dust collecting chamber 24 will fall into the dust collecting container 203, and with the help of the air sent into the dust collecting chamber 24 through the third air inlet channel 7, it can blow the inner wall of the dust collecting chamber 24 and the filter screen 27, so that the garbage adhering to the inner wall of the dust collecting chamber 24 and the filter screen 27 falls off, and the garbage after falling off will directly fall into the dust collecting container 203.

[0066] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A handheld vacuum cleaner, characterized in that: The handheld vacuum cleaner comprises: A machine body, wherein the machine body is provided with a first air inlet channel, a second air inlet channel, a third air inlet channel and an exhaust port which are in communication with an external fluid; A suction motor, the suction motor is used to generate suction force and suck external airflow into the first air inlet channel or the second air inlet channel, the suction motor has an air suction end and an air discharge end, and the air discharge end is fluidically connected to the air discharge port; A dust cup, wherein the dust cup defines a dust collection chamber for receiving and storing dust and debris, and the dust collection cup is provided with a dust inlet and an air outlet in fluid communication with the dust collection chamber; a first flow path, the first flow path sequentially passing through the first air inlet channel, the dust collecting chamber and the air suction end, and the first flow path, in a conducting state, can allow dust-laden air to flow from the first air inlet channel into the dust collecting chamber and allow air entering the dust collecting chamber to flow from the air outlet to the air suction end; a second flow path, the second flow path sequentially passing through the second air inlet channel and the air suction end, and the second flow path, when in a conducting state, enables outside air to flow directly from the second air inlet channel to the air suction end without entering the dust collecting chamber; a third flow path, the third flow path sequentially passing through the third air inlet channel and the dust collecting chamber, the third flow path being capable of allowing the airflow entering the third air inlet channel to flow to the dust collecting chamber when in a conducting state; and A flow path switching device, wherein the flow path switching device is arranged on the body and has a first working position and a second working position; when the flow path switching device is in the first working position, the first flow path is connected and the second flow path and the third flow path are both cut off; when the flow path switching device is in the second working position, the second flow path and the third flow path are both connected and the first flow path is cut off.

2. The handheld vacuum cleaner according to claim 1, characterized in that: The flow path switching device is a device that relies on a mechanical mechanism to perform.

3. The handheld vacuum cleaner according to claim 2, characterized in that: The flow path switching device includes one or more springs, and the one or more springs keep the flow path switching device in the first working position when the flow path switching device is not subjected to external forces.

4. The handheld vacuum cleaner according to claim 3, characterized in that: The flow path switching device has one or more triggering ends. When an external force is applied to the one or more triggering ends, the flow path switching device switches from the first working position to the second working position.

5. The handheld vacuum cleaner according to claim 4, characterized in that: The one or more trigger ends are configured to apply the external force toward the inner side of the body.

6. The handheld vacuum cleaner according to claim 5, characterized in that: The one or more trigger ends are configured to apply the external force in an upward direction toward the inside of the body.

7. The handheld vacuum cleaner according to claim 1, characterized in that: A flow path switching area is defined between the first air inlet channel, the third air inlet channel and the dust collecting port, and part of the flow path switching device is arranged in the flow path switching area.

8. The handheld vacuum cleaner according to claim 7, characterized in that: The flow path switching device includes: an air duct switching component, which is movably arranged in the flow path switching area up and down; when the flow path switching device is in the first working position, the air duct switching component fluidly connects the first air inlet channel and the dust inlet port and cuts off the fluid connection between the third air inlet channel and the dust inlet port; when the flow path switching device is in the second working position, the air duct switching component fluidly connects the third air inlet channel and the dust inlet port and cuts off the fluid connection between the first air inlet channel and the dust inlet port.

9. The handheld vacuum cleaner according to claim 8, characterized in that: The machine body includes an air inlet pipe, which defines the first air inlet channel, and is provided with an opening opposite to the dust inlet port; when the flow path switching device is in the first working position, the air duct switching component fluidly connects the opening and the dust inlet port.

10. The handheld vacuum cleaner according to claim 9, characterized in that: The second air inlet channel and the third air inlet channel are arranged side by side and are located between the air inlet pipe and the dust cup.

11. The handheld vacuum cleaner according to claim 8, characterized in that: The third air inlet channel has a bottom opening, and the lower part of the air duct switching component is close to the bottom opening.

12. The handheld vacuum cleaner according to claim 1, characterized in that: The first flow path includes a downstream channel between the air outlet and the air suction end, and the second flow path passes through a portion of the downstream channel.

13. The handheld vacuum cleaner according to claim 12, characterized in that: A filter is arranged in the downstream channel, and both the first flow path and the second flow path pass through the filter.

14. The handheld vacuum cleaner according to claim 12, characterized in that: The flow path switching device comprises: a blocking mechanism, the blocking mechanism comprises a shell having an internal cavity, a first blocking component and a second blocking component movably arranged in the cavity, the cavity having a first opening, a second opening and a third opening arranged on the shell, the first opening being in fluid communication with the air outlet, the second opening being in fluid communication with the air inlet end, the third opening being in fluid communication with the outside air, and the second air inlet passage passing through the third opening; the blocking mechanism has a first working state and a second working state; when the blocking mechanism is in the first working state, the first The blocking component is away from the first opening, the first opening and the second opening are fluidically connected, the second blocking component blocks the third opening, and the second air inlet channel is cut off; when the blocking mechanism is in the second working state, the first blocking component blocks the first opening, the downstream channel is cut off, and the second air inlet channel is fluidly connected to the suction end; when the flow path switching device is in the first working position, the blocking mechanism is in the first working state; when the flow path switching device is in the second working position, the blocking mechanism is in the second working state.

15. The handheld vacuum cleaner according to claim 14, characterized in that: The shell is fixedly arranged on the machine body, the second blocking component is movably arranged in the shell along the up-down direction, and the first blocking component is movably arranged in the shell along the left-right direction.

16. The handheld vacuum cleaner according to claim 15, characterized in that: The first blocking component and / or the second blocking component is provided with a guiding inclined surface, and the first blocking component and the second blocking component are in sliding friction contact via the guiding inclined surface.

17. The handheld vacuum cleaner according to claim 15, characterized in that: A first spring is arranged between the first blocking component and the shell, and a second spring is arranged between the second blocking component and the shell.

18. The handheld vacuum cleaner according to claim 15, characterized in that: The blocking mechanism comprises a push rod, which is arranged on the body so as to be movable up and down between an upper position and a lower position, and the upper end of the push rod is configured to pass through the third opening and contact the second blocking component.

19. The handheld vacuum cleaner according to claim 18, characterized in that: The second air inlet passage has a lower opening at the bottom, the top rod is located in the second air inlet passage and the lower end of the top rod is close to the lower opening.

20. A vacuum cleaner system, characterized in that: It comprises a handheld vacuum cleaner as described in any one of claims 1 to 19 and a base station capable of docking with the handheld vacuum cleaner, wherein a fourth flow path is constructed inside the base station, and the fourth flow path has a first end and a second end that are far away from each other, the first end is constructed to be able to be connected to the exhaust port fluid, and the second end is constructed to be able to be connected to the third air inlet channel fluid.

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