CN217338420U - Surface cleaning device - Google Patents

Abstract

The utility model discloses a surface cleaning device, including airflow generator and dirt cup subassembly. The airflow generator is for generating a suction airflow along a suction duct of the surface cleaning apparatus. The dust cup assembly comprises a cyclone separation cavity and a dust cavity, and the dust cavity is arranged on the outer side of the cyclone separation cavity and is communicated with the cyclone separation cavity through a dust throwing port. The dust chamber comprises an ash discharge opening, and the ash discharge opening comprises an opening state and a closing state. The surface cleaning device also comprises a main bypass air channel, the main bypass air channel is connected with the cyclone separation cavity in parallel, and after one of the main bypass air channel and the cyclone separation cavity is communicated with the fluid of the air inlet of the airflow generator, the other one is disconnected with the air inlet of the airflow generator. A main bypass air channel is added in the dust cup assembly, and the dust cavity can be emptied by suction airflow generated by the airflow generator through the main bypass air channel.

Description

Surface cleaning device

Technical Field

The utility model relates to a cleaning device technical field especially relates to a surface cleaning device.

Background

Vacuum cleaners are becoming more and more widely used in life as an important tool in the cleaning industry. A dirt cup assembly in a vacuum cleaner is used to collect dirt and dust that is discharged through a dirt discharge opening. The dust cup assembly consists of a cyclone separation cavity and a dust cavity which are separated, and dirt separated in the cyclone separation cavity enters the dust cavity through an ash throwing port. The advantage of separating the cyclonic separating chamber from the dirt chamber is that during cleaning, separated dirt is prevented from re-entering the cyclonic separating chamber.

However, this arrangement improves separation efficiency by cleaning the dirt cup assembly with external air flow which can only clean the dirt chamber but not the cyclonic separation chamber.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides a surface cleaning device, it is being provided with the parallelly connected main bypass wind channel with the whirlwind separation chamber, and the air current can be cleaned the whirlwind separation chamber simultaneously when exhausting the dirt chamber.

In one aspect, the utility model provides a surface cleaning device, include:

an airflow generator for generating a suction airflow along a suction duct of the surface cleaning apparatus;

the dust cup assembly comprises a cyclone separation cavity and a dust cavity, and the dust cavity is arranged on the outer side of the cyclone separation cavity and is communicated with the cyclone separation cavity through an ash throwing port; the dust cavity comprises an ash discharge port, and the ash discharge port comprises an open state and a closed state;

the surface cleaning device further comprises a main bypass air channel, the main bypass air channel is connected with the cyclone separation cavity in parallel, one of the main bypass air channel and the cyclone separation cavity is communicated with the fluid of the air inlet of the airflow generator, and the other one of the main bypass air channel and the cyclone separation cavity is disconnected with the air inlet of the airflow generator.

Optionally, the surface cleaning apparatus is provided with a first switch structure for opening and closing the ash slinger, the first switch structure being configured to close the air inlet while opening the ash slinger; and/or the first switch structure closes the air inlet while closing the ash slinger.

Optionally, the main bypass duct is provided with a main air inlet, and the cyclonic separation chamber is provided with a second air inlet, the main air inlet having an open state and a closed state.

Optionally, a third air inlet is disposed between the suction port of the air flow generator and the cyclone separation chamber, and a fourth air inlet is disposed between the suction port of the air flow generator and the main bypass air duct, and the air flow separation device further includes a third switch structure configured to close the fourth air inlet when the third air inlet is configured to be opened again, or configured to close the third air inlet when the fourth air inlet is configured to be opened.

Optionally, the main bypass air duct is provided with a main air inlet, the cyclone separation chamber is provided with a second air inlet, the main air inlet has an open state and a closed state, the second air inlet has an open state and a closed state, wherein when one of the main air inlet and the second air inlet is in the open state, the other is in the closed state.

Optionally, the cyclone separator further comprises a fourth switch structure configured to close the second air inlet of the cyclone separation chamber when the main air inlet of the main bypass duct is opened.

Optionally, the cyclone dust collector further comprises a fourth switch structure which is configured to close the second air inlet of the cyclone separation cavity and the dust dumping port when the main air inlet of the main bypass air duct is opened.

Optionally, the air inlet is in fluid communication with the cyclone separation chamber when in an open state, and the airflow entering from the air inlet of the dust chamber flows through the cyclone separation chamber, the dust throwing port and the dust chamber in sequence and then flows out through the dust discharging port.

Optionally, the dust removal device further comprises a front filter arranged on the upstream of the airflow generator, and airflow entering from the air inlet of the dust cavity flows through the front filter, the cyclone separation cavity, the dust throwing port and the dust cavity in sequence and flows out through the dust discharging port.

Optionally, the inlet vent is in fluid communication with an outlet vent of the flow generator when in the open state.

The utility model provides a surface cleaning device, including airflow generator and dirt cup subassembly. The airflow generator is for generating a suction airflow along a suction duct of the surface cleaning apparatus. The dust cup assembly comprises a cyclone separation cavity and a dust cavity, and the dust cavity is arranged on the outer side of the cyclone separation cavity and is communicated with the cyclone separation cavity through a dust throwing port. The dust chamber comprises an ash discharge opening, and the ash discharge opening comprises an opening state and a closing state. The surface cleaning device also comprises a main bypass air channel, the main bypass air channel is connected with the cyclone separation cavity in parallel, and after one of the main bypass air channel and the cyclone separation cavity is communicated with the fluid of the air inlet of the airflow generator, the other one is disconnected with the air inlet of the airflow generator. A main bypass air channel is added in the dust cup assembly, and the dust cavity can be emptied by suction airflow generated by an airflow generator through the main bypass air channel.

Drawings

Fig. 1 is a schematic structural diagram of a cleaning system according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the cleaning system shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of a hand-held cleaner in one embodiment taken along a horizontal direction;

FIG. 4 is a schematic vertical cross-sectional view of a hand-held cleaner in one embodiment;

FIG. 5 is a schematic diagram of an exemplary evacuation chamber of the cleaning system;

FIG. 6 is a schematic diagram of an exemplary evacuation chamber of the cleaning system;

FIG. 7 is a schematic diagram of an exemplary evacuation chamber of the cleaning system;

FIG. 8 is a schematic view of an exemplary evacuation dust chamber of the cleaning system;

FIG. 9 is a schematic view of an exemplary evacuation dust chamber of the cleaning system;

FIG. 10 is a schematic diagram of an exemplary evacuation chamber of the cleaning system;

FIG. 11 is a schematic view of an exemplary evacuation dust chamber of the cleaning system;

FIG. 12 is a schematic view of an exemplary evacuation dust chamber of the cleaning system;

FIG. 13 is a schematic diagram of an exemplary evacuation chamber of the cleaning system;

FIG. 14 is a schematic view of an exemplary evacuation chamber of the cleaning system;

FIG. 15 is a schematic diagram of an exemplary evacuation chamber of the cleaning system;

FIG. 16 is a schematic view of an exemplary evacuation chamber of the cleaning system;

FIG. 17 is a schematic view of an evacuation chamber of the cleaning system in accordance with one embodiment;

FIG. 18 is a schematic view of an exemplary evacuation chamber of the cleaning system;

FIG. 19 is a schematic diagram of an exemplary evacuation chamber of the cleaning system;

FIG. 20 is a schematic view of a hand-held cleaner according to an embodiment;

FIG. 21 is a schematic cross-sectional view of a hand-held cleaner in an upright orientation according to one embodiment;

FIG. 22 is a schematic cross-sectional view of the hand-held cleaner in another vertical orientation according to one embodiment;

FIG. 23 is a schematic view of a hand-held cleaner in another embodiment;

FIG. 24 is a schematic view showing the construction of a hand-held cleaner in accordance with still another embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific cases.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a cleaning system according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional view of the cleaning system shown in fig. 1. FIG. 3 is a schematic cross-sectional view of a hand-held cleaner in a horizontal orientation in accordance with one embodiment. FIG. 4 is a schematic vertical sectional view of a hand-held cleaner in one embodiment. A cleaning system 100 is disclosed, the cleaning system 100 comprising a surface cleaning apparatus 10 for cleaning a surface to be cleaned and a dust collection apparatus 30 for docking at least a portion of the surface cleaning apparatus. Surface cleaning apparatus 10 may be a hand-held cleaning apparatus, an upright cleaning apparatus, or a horizontal cleaning apparatus. Referring to fig. 1-3, a surface cleaning apparatus 10 includes an airflow generator and a dirt cup assembly. The surface cleaning apparatus in the embodiment shown in figure 1 is a hand-held cleaning device and the airflow generator 8 is used to generate a suction airflow along the suction duct 7 of the surface cleaning apparatus. The dust cup assembly comprises a cyclone separation cavity 1 and a dust cavity 2, and the dust cavity 2 is arranged on the outer side of the cyclone separation cavity 1 and is communicated with the cyclone separation cavity 1 through an ash throwing port 6. Referring to fig. 3, a schematic view of the surface cleaning apparatus is shown in operation. The arrows in the figure are the suction airstream flow direction. Dirt entering the cyclone separation chamber 1 through the suction pipeline 7 is thrown into the dust chamber 2 through the dust throwing port 6 under the cyclone separation effect, and the filtered airflow passes through the exhaust port of the airflow generator 8 and is discharged out of the device. Upstream of the flow generator a pre-filter 4 is provided and downstream a post-filter 5 is provided.

The dust collection assembly 30 can be a collection assembly that can be placed on the floor separately or can be a separate dirt cup-like structure that can be mounted to the surface cleaning apparatus. Referring to fig. 1 and 2, the dust collecting device 30 is a base station that can be placed on the floor, and the base station can be used to place a hand-held cleaning device and to charge the cleaning device in addition to collecting dust. The dust collecting device 30 includes a dust collecting chamber 3, and the dust collecting chamber 3 is used for collecting dirt discharged from the dust discharge port of the dust chamber 2. With the surface cleaning apparatus 10 docked to the dust collecting device 30 and the dust outlet 21 and air inlet 22 open, the suction air flow generated by the air flow generator 8 can transfer at least part of the dirt in the dust chamber 2 into the dust chamber 3.

The dirt in the dust chamber is transferred into the dust collecting chamber of the dust collecting device by the suction airflow generated by the motor (airflow generator) of the surface cleaning device, so that the cost can be reduced (the motor in the dust collecting device is omitted), and the whole volume of the dust collecting device can be reduced. The dust collecting cavity can be provided with a cyclone separating device and a dust bag. Of course, a sterilization device can also be arranged in the dust collecting cavity: such as ultraviolet germicidal lamps, ozone generators, etc.

Referring to fig. 5-19, the following description will be made by way of some embodiments of how the transfer of dirt in the dust chamber to the dust chamber of the dust collecting device is achieved by means of a suction airflow generated by a motor. The direction of the arrows in the figure is the airflow direction, and the opening and closing of the switch structure can be represented by a solid line and a dotted line, wherein the dotted line in the figure is the opening state of the switch structure, and the solid line in the figure is the closing state of the switch structure.

Example one

As shown in fig. 5, the arrows indicate the airflow direction, the dotted lines indicate that the switch structure is in the open state, and the solid lines indicate that the switch structure is in the closed state. The dust chamber 2 comprises an ash discharge opening 21 and an air inlet 22, wherein the ash discharge opening 21, the air inlet 22 and the ash slinger opening 6 are all in an opening state and a closing state. When the surface cleaning device 10 is butted to the dust collecting device 30 and the dust chamber needs to be emptied, the dust throwing port 6 is in a closed state, a passage between the cyclone separation chamber 1 and the dust chamber 2 is cut off, the dust discharging port 21 and the air inlet 22 are in an open state, so that the airflow generated by the airflow generator 8 is allowed to enter the dust chamber 2 through the air inlet 22 and then is discharged through the air outlet 81 of the airflow generator after sequentially passing through the dust discharging port 21, the dust chamber 3, at least part of the suction pipeline 7 and the cyclone separation chamber 1. The airflow entering the dust chamber 2 through the air inlet 22 flows from the dust outlet 21 into the dust collection chamber 3 to transfer at least part of the dirt in the dust chamber 2 into the dust collection chamber 3 for emptying the dust chamber. In the present embodiment, the suction duct 7 is in fluid communication with the dust chamber 3, such that the air flow generated through the suction duct 7 is used for emptying the dust chamber 2.

Referring to fig. 5, on the basis of the first embodiment, the surface cleaning apparatus is provided with a first switch structure 61 for opening and closing the ash slinger 6, the first switch structure 61 being configured to close the air intake 22 while opening the ash slinger 6, or the first switch structure 61 opening the air intake 22 while closing the ash slinger 6.

Referring to fig. 6, the arrows indicate the flow direction of the air flow, the dotted lines indicate the open state of the switch structure, and the solid lines indicate the closed state of the switch structure. Further, in the first embodiment, the air inlet 22 is in fluid communication with the air outlet 81 of the air flow generator when in the open state, so that the air flow discharged from the air flow generator enters the dust chamber 2. Further, a sixth switch structure is included, which is configured to open the dust-throwing opening 6 and close the air inlet 22 and open the air outlet of the surface cleaning device (or the air outlet of the airflow generator); or the sixth switching structure is configured to close the ash slinger 6 while simultaneously opening the air inlet 22, closing the exhaust of the surface cleaning apparatus (or the exhaust of the airflow generator).

Further, the surface cleaning apparatus further comprises a cleaning head (not shown) in fluid communication with the suction duct 7, the suction opening of which can be in fluid communication with the dust collecting chamber 3 after docking of the surface cleaning apparatus with the dust collecting device.

The switch structure in the above embodiments may be mechanically controlled, for example, after the surface cleaning apparatus is connected to the dust collecting apparatus, the switch structure is turned on and/or off by generating an external force to the switch structure through contact; it may also be electrically controlled, for example, by an electric motor or a solenoid valve, which may be turned on and/or off according to an electric signal, and the specific switch structure will not be described in detail herein.

Example two

As shown in fig. 7, and with reference to fig. 3 and 4, the arrows indicate the direction of the airflow, the dashed lines indicate the switch structure in the open state, and the solid lines indicate the switch structure in the closed state. The dust chamber 2 comprises an ash discharge opening 21 and an air inlet 22, wherein the ash discharge opening 21, the air inlet 22 and the ash slinger 6 all have an open state and a closed state (in the figure, a broken line is the open state, and a solid line is the closed state). When the surface cleaning device is butted with a dust collecting device and a dust cavity needs to be emptied, the dust throwing port 6 is in a closed state, a channel between the cyclone separation cavity 1 and the dust cavity 2 is cut off, the dust discharging port 21 and the air inlet 22 are in an open state, so that airflow generated by the airflow generator is allowed to enter the dust cavity 2 through the air inlet 22 and then is discharged through the dust discharging port 21, the dust collection cavity 3 and the cyclone separation cavity 1 through the air outlet 81 of the airflow generator. The airflow entering the dust chamber 2 through the air inlet 22 flows from the dust outlet 21 into the dust collection chamber 3 to transfer at least part of the dirt in the dust chamber 2 into the dust collection chamber 3 for emptying the dust chamber.

As shown in fig. 7, and with reference to fig. 3 and 4, in order to allow the air flow in the dust chamber to pass through the suction duct (see fig. 3 or 4), the surface cleaning apparatus includes an auxiliary bypass duct 71 in addition to the air flow generator 8 and the dust cup assembly, the auxiliary bypass duct 71 being connected in parallel with the suction duct 7, the auxiliary bypass duct 71 communicating the cyclonic separation chamber 1 and the dust chamber 3 after the surface cleaning apparatus 10 is docked to the dust collecting device 30. Specifically, when the surface cleaning device 10 is docked to the dust collecting device 30 and the dust chamber needs to be cleaned, the auxiliary bypass pipe 71 communicates with the cyclone separation chamber 1 and the dust chamber 3, and the airflow generated by the airflow generator 8 at least partially passes through the auxiliary bypass pipe 71, so that the dust chamber 3 generates negative pressure, and the airflow enters the dust chamber 2 through the air inlet 22 and then transfers the dirt into the dust chamber 3 through the dust outlet 21. At this time, the suction duct 7 (refer to fig. 3) may be closed or not. The first air inlet 11 of the auxiliary bypass duct includes a switch structure, which is opened after being docked to the cleaning device and closed after leaving the cleaning device.

With continued reference to figure 7, further, to further improve the cleaning efficiency, one of the auxiliary bypass duct 71 and the suction duct is disconnected from the cyclonic separating chamber 1 whilst the other is in fluid communication with the cyclonic separating chamber 1. A first air inlet 72 is provided between the auxiliary bypass duct 71 and the cyclonic separating chamber. A second air inlet 11 is provided between the suction duct and the cyclonic separation chamber. The first intake port 72 has an open state and a closed state, and the second intake port 11 has an open state and a closed state. That is, after the surface cleaning device is connected to the dust collecting device, when the dust chamber needs to be emptied, the first air inlet 72 is opened, the second air inlet 11 is closed, the air inlet 22 and the dust discharge port 21 of the dust chamber 2 are both opened, the dust throwing port 6 is closed, and the airflow generated by the airflow generator 8 generates negative pressure on the dust chamber 3 through the auxiliary bypass air duct 71, so as to empty the dust chamber.

With continued reference to fig. 7, further, the surface cleaning apparatus includes a second switch structure configured to close the second air inlet 11 while opening the first air inlet 72; or the second switch is configured to open the second air intake port 11 at the same time as closing the first air intake port 72.

Referring to fig. 8, in a second embodiment, the inlet vent is in fluid communication with the outlet vent of the flow generator when the inlet vent is in the open position. In this way, the gas stream exiting the gas generator can be directed into the dust chamber. Further, a sixth switch structure is included, which is configured to close the air inlet 22, open the exhaust port of the surface cleaning apparatus (or the exhaust port of the airflow generator) while opening the ash slinger 6; or to open the dust chamber inlet 22, close the surface cleaning apparatus outlet (or the airflow generator outlet) at the same time as the dust slinger opening is closed.

On the basis of the second embodiment, the cleaning system further comprises a seventh switch structure configured to close the second air inlet 11 and close the ash slinger 6 at the same time as opening the first air inlet 72 and opening the air inlet 22; or to open the second air inlet 11 and open the ash slinger 6 simultaneously with the closing of the first air inlet 72 and the closing of the air intake 22.

In addition to the second embodiment, the cleaning system further includes a fifth switch structure configured to close the exhaust port of the surface cleaning apparatus (or the exhaust port of the airflow generator) while opening the air inlet 22 of the dust chamber, or configured to open the exhaust port of the surface cleaning apparatus (or the exhaust port of the airflow generator) while closing the air inlet 22 of the dust chamber. A post-filter is provided downstream of the exhaust of the surface cleaning apparatus (or the exhaust of the airflow generator) to filter the exhaust gases.

The switch structure in the above embodiments may be mechanically controlled, for example, after the surface cleaning device is docked to the dust collecting device, the switch structure is turned on and/or off by generating an external force on the switch structure through contact; it may also be electrically controlled, for example, by an electric motor or a solenoid valve, which may be turned on and/or off according to an electric signal, and the specific switch structure will not be described in detail herein.

EXAMPLE III

Referring to fig. 9-10, the arrows indicate the direction of airflow, the dashed lines indicate the switch structure is in the open state, and the solid lines indicate the switch structure is in the closed state. The dust chamber 2 comprises an ash discharge opening 21 and an air inlet 22, wherein the ash discharge opening 21 and the air inlet 22 both have an open state and a closed state. The surface cleaning device further comprises a main bypass air duct 73, the main bypass air duct 73 is connected with the cyclone separation chamber 1 in parallel, and after one of the main bypass air duct 73 and the cyclone separation chamber 1 is in fluid communication with the air inlet of the airflow generator, the other one is disconnected with the air inlet of the airflow generator. When the surface cleaning device is connected to the dust collecting device in a butt joint mode and dust needs to be discharged, in order to enable the suction airflow to empty the dust cavity, the main bypass air duct 73 is required to be connected with the air inlet of the airflow generator and the dust cavity 3, so that the airflow generated by the airflow generator generates negative pressure in the dust cavity 3 through the main bypass air duct 73, and dirt in the dust cavity 2 is transferred into the dust cavity 3 through the dust discharge port 21. In particular, the passage between the cyclonic separating chamber 1 and the dust chamber 2 is cut off, i.e. the dust extraction opening 6 is closed, the dust discharge opening 21 and the air inlet 22 are in an open state to allow the airflow generated by the airflow generator to enter the dust chamber 2 through the air inlet 22, and the airflow entering the dust chamber 2 through the air inlet 22 flows from the dust discharge opening 21 into the dust collecting chamber 3 to transfer at least part of the dirt in the dust chamber 2 into the dust collecting chamber 3 to empty the dust chamber 2.

Referring to fig. 9, on the basis of the third embodiment, the main bypass duct 73 is provided with a main air inlet 74, the cyclone chamber 1 is provided with the second air inlet 11, and the main air inlet 74 has an open state and a closed state. A third air inlet 75 is arranged between the suction port of the airflow generator 8 and the cyclone separation chamber, and a fourth air inlet 76 is arranged between the suction port of the airflow generator 8 and the main bypass air duct 73. The surface cleaning apparatus further includes a third switch structure (open state in dashed lines and closed state in solid lines) configured to close the fourth intake vent 76 when the third intake vent 75 is open, or configured to close the third intake vent when the fourth intake vent is open.

Referring to fig. 12 to 14, in the third embodiment, the air inlet 22 of the dust chamber is in fluid communication with the cyclone chamber 1 when in the open state, and the airflow entering from the air inlet 22 of the dust chamber 2 flows through the cyclone chamber 1, the dust throwing port 6 and the dust chamber 2 in sequence and then flows out through the dust discharging port 21. The surface cleaning apparatus further comprises a pre-filter 4 arranged upstream of the airflow generator, and the airflow entering from the air inlet 22 of the dust chamber flows through the pre-filter 4, the cyclone separation chamber 1, the dust throwing port 6 and the dust chamber 2 in sequence and then flows out through the dust discharging port 21.

With continued reference to fig. 9, the primary bypass duct 73 is provided with a primary air inlet 74, the cyclonic separating chamber 1 is provided with a secondary air inlet 11, the primary air inlet 74 has an open state and a closed state, and the secondary air inlet 11 has an open state and a closed state, wherein one of the primary air inlet 74 and the secondary air inlet 11 is in the open state and the other is in the closed state. The surface cleaning apparatus further comprises a fourth switch arrangement configured to close the second air inlet 11 of the cyclonic separating chamber when the primary air inlet 74 of the primary bypass duct is opened.

Referring to fig. 12, in the third embodiment, the inlet 22 is the same opening as the second inlet 11 of the cyclone chamber. Like this, suction air current gets into the whirlwind separation intracavity from the second air intake, then gets into the dirt chamber from getting rid of the ash mouth after, gets into the dust collecting cavity from arranging the ash mouth to dirty transfer to the collection dirt intracavity in the dirt chamber.

Referring to fig. 10, 11 and 14, in a third embodiment, the inlet vent is in fluid communication with the outlet vent of the flow generator when the inlet vent is in the open position. In figure 10 the gas exiting the exhaust of the flow generator enters the dust chamber after passing through the post filter 5. That is, the post-filter 5 is disposed upstream of the exhaust port 81 of the surface cleaning apparatus, and filtered gas enters the dust chamber when the exhaust port of the surface cleaning apparatus is closed. In figure 11 the gas exiting the exhaust of the flow generator enters the dust chamber directly without passing through the post filter 5. That is, the post-filter 5 is provided downstream of the exhaust port 81 of the surface cleaning apparatus, and when the exhaust port of the surface cleaning apparatus is closed, the gas entering the dust chamber is not filtered by the post-filter 5. Further, the surface cleaning apparatus may further comprise a fifth switch structure configured to close the exhaust port of the surface cleaning apparatus (the exhaust port of the airflow generator) at the same time as the air inlet is opened.

The switch structure in the above embodiments may be mechanically controlled, for example, after the surface cleaning device is docked to the dust collecting device, the switch structure is turned on and/or off by generating an external force on the switch structure through contact; it may also be electrically controlled, for example, by an electric motor or a solenoid valve, which may be turned on and/or off according to an electric signal, and the specific switch structure will not be described in detail herein.

Example four

Referring to fig. 15-17, the arrows indicate the direction of airflow, the dashed lines indicate the switch structure is in the open state, and the solid lines indicate the switch structure is in the closed state. The dust chamber 2 comprises an ash discharge opening 21 and an air inlet 22, wherein the ash discharge opening 21, the air inlet 22 and the ash slinger 6 all have an open state and a closed state (in the figure, a broken line is the open state, and a solid line is the closed state). The surface cleaning device further comprises a main bypass air duct 73, the main bypass air duct 73 is connected in parallel with the cyclone separation chamber 1, the main bypass air duct 73 is provided with a main air inlet 74, the cyclone separation chamber 1 is provided with a second air inlet 11, the main air inlet 74 has an open state and a closed state, the second air inlet 11 has an open state and a closed state, wherein when one of the main air inlet 74 and the second air inlet 11 is in the open state, the other one is in the closed state. When the surface cleaning apparatus 10 is docked to the dust collecting apparatus 30 and the cleaning of the dust chamber is required, the secondary air inlet 11 of the cyclonic separation chamber and the dust slinger 6 are closed and the primary air inlet 74 of the primary bypass duct is open, i.e. with the primary bypass duct 73 communicating with the dust collection chamber 3 and the suction opening of the airflow generator 8, the dust slinger 6 and the secondary air inlet 11 of the cyclonic separation chamber are in a closed condition. At this time, the airflow generated by the airflow generator enters the dust chamber 2 from the air inlet 22, and then enters the airflow generator after passing through the dust chamber 3 and the main bypass air duct 73 in sequence. By adopting the structure, the emptying of the dust cavity can be realized only by controlling the main air inlet 74, the second air inlet 11 of the cyclone separation cavity and the opening and closing of the dust throwing port 6 without arranging a switch structure between the suction port of the airflow generator and the cyclone separation cavity or between the suction port of the airflow generator and the main bypass air duct.

Referring to fig. 15, the cleaning system further includes a fourth switching structure for closing the second air inlet of the cyclone chamber when the main air inlet of the main bypass duct is opened.

Referring to fig. 16 and 17, the intake vent is in fluid communication with the exhaust vent of the flow generator when in the open state. In figure 16 the air exiting the exhaust of the airflow generator enters the dust chamber after passing through the post-filter 5. That is, the post-filter 5 is provided upstream of the exhaust port 81 of the surface cleaning apparatus, and filtered gas enters the dust chamber when the exhaust port of the surface cleaning apparatus is closed. In figure 17 the gas exiting the exhaust of the flow generator enters the dust chamber directly without passing through the post filter 5. That is, the post-filter 5 is provided downstream of the exhaust port 81 of the surface cleaning apparatus, and when the exhaust port of the surface cleaning apparatus is closed, the gas entering the dust chamber is not filtered by the post-filter 5. Further, the surface cleaning apparatus may further comprise a fifth switch structure configured to close the exhaust port of the surface cleaning apparatus (the exhaust port of the airflow generator) at the same time as the air inlet is opened.

The switch structure in the above embodiments may be mechanically controlled, for example, after the surface cleaning device is docked to the dust collecting device, the switch structure is turned on and/or off by generating an external force on the switch structure through contact; it may also be electrically controlled, for example, by an electric motor or a solenoid valve, which may be turned on and/or off according to an electric signal, and the specific switch structure will not be described in detail herein.

EXAMPLE five

Referring to fig. 18, the direction of the arrows in the figure is the airflow direction. There is disclosed a cleaning system comprising a surface cleaning apparatus 10 for cleaning a surface to be cleaned and a dust collecting apparatus 30 for docking at least part of the surface cleaning apparatus. The surface cleaning apparatus comprises an airflow generator 8 and a dirt cup assembly. The airflow generator 8 is used to generate a suction airflow along a suction duct of the surface cleaning apparatus. The dust cup assembly comprises a cyclone separation cavity 1 and a dust cavity, and the dust cavity 2 is arranged on the outer side of the cyclone separation cavity 1 and is communicated with the cyclone separation cavity 1 through an ash throwing port 6. The dust chamber 2 comprises an ash discharge opening 21 and an air inlet 22, wherein the ash discharge opening 21, the air inlet 33 and the ash slinger 6 all have an open state and a closed state. The dust collecting device comprises a dust collecting chamber 3. The dust collection chamber 3 is used for collecting dirt discharged from an ash discharge port of the dust chamber. Wherein the exhaust air flow from the air flow generator may transfer at least part of the dirt in the dust chamber 2 into the dust chamber 3 in case the surface cleaning device is docked to the dust collecting device and the dust outlet and the air inlet are open. In this embodiment, the exhaust airflow generated by the airflow generator is used to transfer the dirt in the dust chamber to the dust collecting chamber, which can also achieve the effects of reducing cost and saving space. Referring to the figures, in one embodiment, the airflow from the airflow generator is blown directly into the dust cavity through the air inlet 22 of the dust cavity.

EXAMPLE six

Referring to fig. 19, the direction of the arrows in the drawing is the airflow direction. There is disclosed a cleaning system comprising a surface cleaning apparatus 10 for cleaning a surface to be cleaned and a dust collecting apparatus 30 for docking at least part of the surface cleaning apparatus. The surface cleaning apparatus comprises an airflow generator 8 and a dirt cup assembly. The airflow generator 8 is for generating a suction airflow along a suction duct of the surface cleaning apparatus. The dust cup assembly comprises a cyclone separation cavity 1 and a dust cavity, and the dust cavity 2 is arranged on the outer side of the cyclone separation cavity 1 and is communicated with the cyclone separation cavity 1 through an ash throwing port 6. The dust chamber 2 comprises an ash discharge opening 21 and an air inlet 22, wherein the ash discharge opening 21, the air inlet 33 and the ash slinger 6 all have an open state and a closed state. The dust collecting device comprises a dust collecting chamber 3. The dust collection chamber 3 is used for collecting dirt discharged from an ash discharge port of the dust chamber. Wherein the exhaust air flow from the air flow generator may transfer at least part of the dirt in the dust chamber 2 into the dust chamber 3 in case the surface cleaning device is docked to the dust collecting device and the dust outlet and the air inlet are open. The surface cleaning device in the cleaning system comprises a main bypass air channel 73, the main bypass air channel 73 is connected with the cyclone separation cavity 1 in parallel, and the air outlet flow discharged by the airflow generator 8 sequentially flows through the cyclone separation cavity 1, the dust throwing port 6 and the dust cavity 2 and then enters the dust collection cavity 3. Further, the surface cleaning apparatus may further comprise a pre-filter 4 arranged upstream of the airflow generator 8, the airflow exiting the airflow generator 8 passing through the pre-filter 4 before entering the cyclonic separation chamber 1, the airflow being capable of removing at least some of the dust that is adsorbed on the pre-filter 4. During the emptying of the dust chamber, the second air inlet 11 of the cyclonic separating chamber 1 is closed.

The structure of the hand-held cleaner will now be described in detail with reference to figures 1 to 4, and also to figures 20 to 24. FIG. 20 is a schematic view of a hand-held cleaner in accordance with an embodiment. Figure 21 is a schematic cross-sectional view of a hand-held cleaner in an upright orientation according to one embodiment. FIG. 22 is a schematic cross-sectional view of a hand held cleaner in another vertical orientation in accordance with an embodiment. Fig. 23 is a schematic structural view of a hand-held cleaner in another embodiment. FIG. 24 is a schematic view of a hand-held cleaner in accordance with still another embodiment. Referring to fig. 20-24, and to fig. 3 and 4 in greater detail, the hand-held cleaner 10 of the embodiment shown in the drawings includes an airflow generator 8, an energy storage unit 91, a pistol grip 9, and a dirt cup assembly. A pistol grip 9 is used to support the hand-held cleaner. The airflow generator 8 is used to generate an airflow flowing along the suction duct. An energy storage unit 91 for providing energy to the airflow generator 8. The handgrip 9 has opposite upper and lower ends along its axial direction, wherein when the upper end of the handgrip 9 is located above the lower end of the handgrip 9 (as in the position shown in figure 20), the airflow generator 8 is located above the upper end of the handgrip 9 and the energy storage unit 91 is disposed between the airflow generator 8 and the upper end of the handgrip 9. The upper direction referred to herein is not limited to the right upper direction, and may be an obliquely upper position. The above is also understood to be the relationship of the upper and lower positions in the vertical direction and does not limit the position of the individual components in the horizontal plane in which they are located. Through setting up the motor in handle 9 top, the battery sets up between handle 9 and motor, can make the weight distribution of host computer more reasonable. The dust cup component can be of a single dust cup structure, namely the cyclone separation cavity and the dust cavity are arranged in the same cyclone barrel, and the dust cup component can also be of a double-cup structure with the cyclone separation cavity and the dust cavity being independent.

Referring to fig. 21 and 22, the handgrip 9 is a pistol grip 9 for supporting a hand-held cleaner, the handgrip 9 having opposite upper and lower ends along its axis, wherein the airflow generator 8 and the energy storage unit 91 are both located above the upper end of the handgrip 9 when the upper end of the handgrip 9 is located above the lower end of the handgrip 9. Referring to fig. 22, in one embodiment, the axis Z of the handle 9 passes through the energy storage unit 91 and the airflow generator 8, with at least a portion of the airflow generator 8 being disposed directly above the energy storage unit 91. Referring to fig. 23, in another embodiment, the axis Z of the handgrip 9 passes through the energy storage unit 91 but not through the airflow generator 8, i.e. the airflow generator 8 is set back relative to the axis of the handgrip 9. Referring to fig. 24, in other embodiments, the axis Z of the handgrip 9 passes through neither the energy storage unit 91 nor the airflow generator 8, the energy storage unit 91 being disposed behind the axis of the handgrip 9 or the energy storage unit 91 being disposed in front of the axis of the handgrip 9, the airflow generator 8 being disposed behind the axis of the handgrip 9.

Referring to fig. 3 and 4, the dirt cup assembly includes a cyclonic separation chamber 1 and a dirt chamber 2. The dust cavity 2 is arranged outside the cyclone separation cavity 1 and is communicated with the cyclone separation cavity 1 through an ash throwing port 6. The cyclone chamber 1 and the dust chamber 2 are separated and communicated through an ash slinger 6. As in the embodiment shown in the figures, the cyclonic separating chamber 1 and the dirt chamber 2 are both located above the suction duct 7. Further, the cyclonic separating chamber 1 and the dirt chamber 2 are arranged side by side above the suction duct 7 in a direction transverse to the axial direction of the suction duct 7.

In other embodiments, the axis X of the suction duct 7 may pass through the dirt cup assembly, and the suction duct 7 is disposed at an end of the dirt cup assembly, with part of the suction duct 7 extending through one end of the dirt cup assembly and communicating with the cyclonic separation chamber 1.

Referring to fig. 3 and 21, the hand-held cleaner further comprises a post-filter 5 for filtering air exiting the airflow generator 8, the post-filter 5 being disposed above the energy storage unit 91. Wherein, handheld dust catcher has front end and rear end along the axis Y direction in whirlwind separation chamber 1, and dirt chamber 2 and whirlwind separation chamber 1 set up side by side, and airflow generator 8 sets up in the rear in whirlwind separation chamber 1, and back filter 5 sets up in the rear in dirt chamber 2 and sets up side by side with airflow generator 8. In other embodiments, the post-filter 5 may be disposed behind the airflow generator 8 in the axial direction of the airflow generator 8, or the post-filter 5 may be disposed around the airflow generator 8.

Referring to fig. 21, the energy storage unit is located behind the suction duct 7 in the axial direction X of the suction duct 7. The cyclonic separating chamber 1 and the dirt chamber 2 are at substantially the same height. The projection of the energy storage unit 91 in the first plane in the axial direction X of the suction duct 7 intersects the projection of the suction duct 7 in the first plane. The first plane is a plane perpendicular to the suction duct axis X, i.e. the suction duct 7 and the energy storage unit 91 are substantially at the same height. The suction duct 7 extends in an upper plane of the upper end of the handle 9. Referring to figure 3, the airflow generator 8, the cyclonic separating chamber 1, the dirt chamber 2 and the post-filter 5 are substantially at the same height when the axis Y of the cyclonic separating chamber 1 is positioned horizontally.

The airflow generator 8 and the post-filter 5 are located on either side of the axis Z of the handgrip 9, along the width of the hand-held cleaner. I.e. the airflow generator 8 and the post-filter 5 are located on either side of the handgrip 9, when viewed from the upper end to the lower end of the handgrip 9. The handheld dust collector is also provided with an installation cavity for installing the rear filter 5, the installation cavity is provided with an air inlet and an air outlet, and the air inlet and the air outlet are arranged oppositely.

Referring to fig. 2 and 3, the dust chamber 2 further includes an air inlet 22, and the airflow can enter the dust chamber 2 from the air inlet 22 and then be discharged from the dust outlet of the dust chamber 2.

The cyclone chamber 1 and the dust chamber 2 are respectively located at both sides of the suction duct 7 in the width direction of the hand-held cleaner. That is, the cyclone chamber 1 and the dust chamber 2 are located at both sides of the suction duct 7, respectively, as viewed from the upper end to the lower end of the handle 9. The cyclonic separating chamber 1 and the dirt chamber 2 may also be arranged symmetrically with respect to the suction duct 7 for aesthetic reasons. The cyclonic separating chamber 1 includes a separating chamber ash discharge. The dust discharge port of the dust chamber 2 and the dust discharge port of the separation chamber are opened simultaneously. The suction duct 7 extends in an upper plane of the upper end of the handle 9.

While the embodiments of the invention have been described above, it is not intended to be limited to the embodiments shown, and described, but rather to be accorded the widest scope consistent with the principles and novel features herein disclosed, and to such extent as may be readily modified by those skilled in the art, and to such extent as is not limited by the specific details shown and described herein without departing from the general concepts defined by the claims and their equivalents.

Claims (10)

1. A surface cleaning apparatus, comprising:

an airflow generator for generating a suction airflow along a suction duct of the surface cleaning apparatus;

the dust cup assembly comprises a cyclone separation cavity and a dust cavity, and the dust cavity is arranged on the outer side of the cyclone separation cavity and is communicated with the cyclone separation cavity through an ash throwing port; the dust chamber comprises an ash discharge port and an air inlet, and the ash discharge port and the air inlet both comprise an open state and a closed state;

the surface cleaning device further comprises a main bypass air channel, the main bypass air channel is connected with the cyclone separation cavity in parallel, one of the main bypass air channel and the cyclone separation cavity is communicated with the fluid of the air inlet of the airflow generator, and the other one of the main bypass air channel and the cyclone separation cavity is disconnected with the air inlet of the airflow generator.

2. A surface cleaning apparatus as claimed in claim 1,

the surface cleaning device is provided with a first switch structure for opening and closing the ash throwing port, and the first switch structure is configured to open the ash throwing port and close the air inlet simultaneously; or the first switch structure is configured to close the air inlet at the same time of closing the ash throwing port.

3. A surface cleaning apparatus as claimed in claim 1,

the main bypass air duct is provided with a main air inlet, the cyclone separation cavity is provided with a second air inlet, and the main air inlet has an open state and a closed state.

4. A surface cleaning apparatus as claimed in claim 3,

the cyclone separation device is characterized in that a third air inlet is arranged between a suction port of the air flow generator and the cyclone separation cavity, a fourth air inlet is arranged between the suction port of the air flow generator and the main bypass air duct, and the cyclone separation device further comprises a third switch structure, wherein the third switch structure is used for closing the fourth air inlet when being configured to open the third air inlet again or is configured to close the third air inlet when being configured to open the fourth air inlet.

5. A surface cleaning apparatus as claimed in claim 1,

the cyclone separation device comprises a main bypass air duct, a cyclone separation cavity, a main bypass air inlet, a second air inlet, an open state and a closed state, wherein the main bypass air duct is provided with the main air inlet, the cyclone separation cavity is provided with the second air inlet, the main air inlet is provided with the open state and the closed state, the second air inlet is provided with the open state and the closed state, and when one of the main air inlet and the second air inlet is in the open state, the other one of the main air inlet and the second air inlet is in the closed state.

6. A surface cleaning apparatus as claimed in claim 5,

the cyclone separation device further comprises a fourth switch structure which is configured to close the second air inlet of the cyclone separation cavity when the main air inlet of the main bypass air duct is opened or is configured to open the second air inlet of the cyclone separation cavity when the main air inlet of the main bypass air duct is closed.

7. A surface cleaning apparatus as claimed in claim 5,

the cyclone separation device further comprises a fourth switch structure which is configured to close the second air inlet of the cyclone separation cavity and the ash throwing port when the main air inlet of the main bypass air duct is opened.

8. A surface cleaning apparatus as claimed in claim 1,

the air inlet is communicated with the cyclone separation cavity in a fluid mode in an open state, and airflow entering from the air inlet of the dust cavity flows through the cyclone separation cavity, the dust throwing port and the dust cavity in sequence and then flows out through the dust discharging port.

9. A surface cleaning apparatus as claimed in claim 1,

the cyclone dust collector is characterized by further comprising a front filter arranged on the upstream of the airflow generator, and airflow entering from an air inlet of the dust cavity flows through the front filter, the cyclone separation cavity, the dust throwing port and the dust cavity in sequence and then flows out through the dust discharging port.

10. A surface cleaning apparatus as claimed in claim 1,

the air inlet is in fluid communication with an air outlet of the surface cleaning apparatus when in an open state.

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