Dust collection base station, dust cup of vacuum cleaner, cleaning device, and dust collection method

Abstract

A dust collection base station (1000), a dust cup (210) of a vacuum cleaner, a cleaning device, and a dust collection method. The dust collection base station (1000) comprises a base station body (110) and a cover-opening structure (120), wherein an accommodating recess (110a) is formed at an end of the base station body (110); and the cover-opening structure (120) is located on a side wall of the accommodating recess (110a), and the cover-opening structure (120) is configured to trigger the unlocking of a dust discharge cover (212) of the dust cup (210) if an air pressure in the accommodating recess (110a) is within a preset negative-pressure range. Since the air pressure in the accommodating recess (110a) is within the preset negative-pressure range during unlocking, a difference between the air pressure in the dust cup (210) and the air pressure in the accommodating recess (110a) is within an acceptable range, an impact force generated when the dust discharge cover (212) is opened under the action of the air pressure difference between two sides thereof is also within an acceptable range, and debris in the dust cup (210) enters the accommodating recess (110a) under the action of the difference between the air pressure in the dust cup (210) and the air pressure of the accommodating recess (110a), thereby reducing or even preventing the residue of the debris from accumulating in the dust cup (210), and also preventing an impact generated when the debris enters the accommodating recess (110a) from being excessive and thus affecting the normal usage of a cleaning device.

Description

Dust collection base station, dust cup of vacuum cleaner, cleaning device and dust collection method

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese patent application No. 202510422754.4, filed with the China National Intellectual Property Administration on September 30, 2024, entitled "Opening Structure and Dust Collection Method", the entire contents of which are incorporated herein by reference.

[0003] This application claims priority to Chinese Patent Application No. 202411253258.2, filed on September 6, 2024, entitled "Cleaning Apparatus and Dust Collection Method", the entire contents of which are incorporated herein by reference.

[0004] This application claims priority to Chinese Patent Application No. 202411295821.2, filed on September 14, 2024, entitled "Cleaning Device and Dust Collection Method", the entire contents of which are incorporated herein by reference.

[0005] This application claims priority to Chinese patent application No. 202411398263.2, filed with the China National Intellectual Property Administration on September 30, 2024, entitled "Dust Collection Base Station, Dust Cup and Cleaning Device, Dust Collection Method", the entire contents of which are incorporated herein by reference. Technical Field

[0006] This application relates to the field of cleaning devices, and more particularly to a dust collection base station, a dust cup of a vacuum cleaner, a cleaning device, and a dust collection method. Background Technology

[0007] Cleaning devices typically include vacuum cleaners and dust collection stations. They are common household appliances used to clean dust, dirt, and other debris from surfaces such as floors, carpets, and furniture.

[0008] The dust cup of a vacuum cleaner can store a certain amount of debris. When the vacuum cleaner is placed in a dust collection station, the dust discharge cover located at the bottom of the dust cup can be opened to allow the debris accumulated in the dust cup to fall into the dust collection station.

[0009] The inventors discovered that if the dust cover is not opened at the right time when the vacuum cleaner is placed at the dust collection station, it will have an adverse effect on the normal use of the cleaning device.

[0010] Application content

[0011] A series of simplified concepts are introduced in the application content part, which will be further described in detail in the specific implementation part. This part of the application does not mean to try to limit the key features and essential technical features of the claimed technical solutions, nor to try to determine the protection scope of the claimed technical solutions.

[0012] Therefore, according to a first aspect of the embodiments of the present application, a dust collecting base station is provided, comprising a base station main body and an uncapping structure, an accommodating groove is formed at an end of the base station main body, the accommodating groove is used to accommodate an end of a dust cup, and the uncapping structure is configured to trigger an unlocking of a dust discharging cover of the dust cup if an air pressure in the accommodating groove is within a preset negative pressure range.

[0013] According to a second aspect of the embodiments of the present application, a dust cup of a dust collector is provided, which is suitable for the dust collecting base station as described in the above technical solutions, comprising a cup body, a dust discharging cover and a locking member, the dust discharging cover is connected with the cup body, the locking member is connected with the cup body, the locking member is used to lock the dust discharging cover, and the dust discharging cover is unlocked under the triggering of the uncapping structure.

[0014] According to a third aspect of the embodiments of the present application, a cleaning device is provided, comprising a dust collecting base station and a dust collector, the dust collector comprising a dust cup; wherein the dust collecting base station is the dust collecting base station of any one of the above technical solutions, and / or the dust cup is the dust cup of any one of the above technical solutions.

[0015] According to a fourth aspect of the embodiments of the present application, a dust collecting method is provided, which is applied to a dust collecting device comprising a dust cup and a cover selectively closing the dust cup, the method comprising: generating a negative pressure within a preset range to act on a first device and promote the first device to act, the first device acting on a second device to release the cover, so that the dust cup changes from a closed state to an open state.

[0016] According to a fifth aspect of the embodiments of the present application, a cleaning device is provided, comprising a dust collector, a dust collecting base station and a negative pressure device; the dust collector comprising a dust cup and a first cover, the first cover being used to close or open an internal space of the dust cup, the dust cup being provided with a lock catch, the lock catch being used to lock the first cover; comprising an unlocking member; the negative pressure device is used to generate a negative pressure in the dust collecting base station, so that the unlocking member acts on the lock catch to unlock the first cover under the action of the air pressure difference.

[0017] According to a sixth aspect of the embodiments of the present application, a dust collecting method is provided, which is applied to a dust collecting device comprising a dust cup and a cover selectively closing the dust cup, the method comprising: generating a negative pressure to act on a first device and promote the first device to act, the first device acting on a second device to release the cover, so that the dust cup changes from a closed state to an open state.

[0018] According to a seventh aspect of the embodiments of the present application, a cleaning device is provided, comprising: a vacuum cleaner comprising a dust collecting chamber for collecting foreign matter; and a dust collecting base station configured to be detachably connected to the dust collecting chamber to remove the foreign matter collected in the dust collecting chamber; at least one of the vacuum cleaner and the dust collecting base station is provided with a negative pressure device configured to reduce the internal air pressure of the dust collecting base station; wherein the dust collecting chamber comprises: a body; a first cover body provided openably and closably on the body; and a fixing member configured to fix the first cover body to the body and release the first cover body when the internal air pressure meets a preset condition.

[0019] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0020] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments, and are not meant to limit the present application. Moreover, the same reference numerals in the attached drawings indicate the same or similar components. In the drawings:

[0021] FIG. 1 is a structural schematic diagram of a cleaning device according to an embodiment of the present application;

[0022] FIG. 2 is a structural schematic diagram of a dust cup according to an embodiment of the present application;

[0023] FIG. 3 is a structural schematic diagram of a dust collecting base station according to an embodiment of the present application;

[0024] FIG. 4 is a partial structural schematic diagram of a dust collecting base station according to an embodiment of the present application;

[0025] FIG. 5 is a structural schematic diagram of an opening cover structure according to an embodiment of the present application;

[0026] FIG. 6 is a cross-sectional schematic diagram of an opening cover structure according to an embodiment of the present application;

[0027] FIG. 7 is a partial structural schematic diagram of a dust collecting base station according to an embodiment of the present application;

[0028] FIG. 8 is a cross-sectional schematic diagram of a dust collecting base station according to an embodiment of the present application;

[0029] Fig. 9 is a structural schematic diagram of a dust collecting base station according to an embodiment of the present application;

[0030] Fig. 10 is a structural schematic diagram of a dust collecting base station according to an embodiment of the present application;

[0031] Fig. 11 is a structural schematic diagram of a cup body according to an embodiment of the present application;

[0032] Fig. 12 is a structural schematic diagram of a locking member according to an embodiment of the present application;

[0033] Fig. 13 is a schematic diagram of the cooperation between a clamping hook and a dust discharging cover according to an embodiment of the present application.

[0034] Fig. 14 is a separation diagram of a dust collector and a dust collecting base station according to an embodiment of the present application;

[0035] Fig. 15 is an exploded view of a dust collector according to an embodiment of the present application;

[0036] Fig. 16 is a schematic diagram of part of the structure in Fig. 15;

[0037] Fig. 17 is an exploded view of a dust collecting base station according to an embodiment of the present application;

[0038] Fig. 18 is an enlarged view of A in Fig. 18;

[0039] Fig. 19 is a structural schematic diagram of an unlocking member and a cover according to an embodiment of the present application;

[0040] Fig. 20 is a structural schematic diagram of a dust cup according to an embodiment of the present application;

[0041] Fig. 21 is a bottom view of a dust cup according to an embodiment of the present application;

[0042] Fig. 22 is a top view of a second cover according to an embodiment of the present application;

[0043] Fig. 23 is a top view of a dust collecting box according to an embodiment of the present application;

[0044] Fig. 24 is a sectional view of a cleaning device according to an embodiment of the present application;

[0045] Fig. 25 is a sectional view of a cleaning device according to another embodiment of the present application;

[0046] Fig. 26 is a structural schematic diagram of a cleaning device according to yet another embodiment of the present application;

[0047] Fig. 27 is a structural schematic diagram of a cleaning device in an exploded state according to yet another embodiment of the present application;

[0048] Fig. 28 is a structural schematic diagram of a cleaning device in an exploded state according to yet another embodiment of the present application, from another angle;

[0049] Fig. 29 is a partial enlarged view of A in Fig. 28;

[0050] Fig. 30 is a schematic structural view of a fixing member of a cleaning device according to another embodiment of the present application;

[0051] Fig. 31 is a schematic structural view of the cleaning device according to another embodiment of the present application.

[0052] 1000 dust collection base station, 1100 first air suction assembly, 1101 dust collection bag, 100 housing, 110 base station main body, 110a containing groove, 110b first through hole, 110c dust outlet, 110d air suction port, 110e air suction channel, 110f dust collection bag mounting cavity, 120 uncovering structure, 121 trigger rod, 122 fixed support, 123 first elastic member, 120a air cavity, 1211 rod body, 1212 connecting disc, 1221 protrusion, 1221a inclined surface, 1231 annular connecting portion, 1232 annular elastic portion, 123a annular groove, 124 cover, 124a air hole, 125 air pressure sensor, 126 electric push rod, 127 second elastic member, 2000 dust collector, 210 dust cup, 211 cup body, 212 dust discharge cover, 213 locking member, 212a second locking surface, 2110 rotating portion, 2111 main body portion, 2112 air duct portion, 2112a first air duct, 2112b second air duct, 2121 dust discharge cover main body, 2122 second wear-resistant block, 2131 lock catch, 21311 rotating connecting portion, 21312 pressing unlocking portion, 21313 hook portion, 2132 third elastic member, 21314 hook main body, 21315 first wear-resistant block, 21313a first locking surface, 113 third air duct, 12 first cover body, 14 second cover body, 141 push rod, 142 collar, 15 air duct switching member, 151 first shielding portion, 152 second shielding portion, 16 separator, 161 sleeve, 162 cyclone cone, 163 filter member, 17 handle, 18 air pipe, 19 suction head, 101 dust discharge port, 102 air inlet, 103 first opening, 104 second opening, 105 dust outlet, 106 mounting groove, 107 air outlet hole, 21 dust collection box, 2101 dust discharge cavity, 22 unlocking member, 221 piston rod, 222 sliding block, 223 deformation member, 23 stand column, 24 cover, 26 front shell, 27 rear shell, 201 dust collection port, 202 insertion opening, 203 air outlet, 204 air permeation hole, 205 object taking opening, 206 third opening, 310 vacuum cleaner, 311 dust collection chamber, 3111 main body, 3112 fixing member, 30 negative pressure device. DETAILED DESCRIPTION

[0053] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the technical solutions provided by the present application. It will be apparent, however, to one of ordinary skill in the art that the technical solutions provided by the present application can be practiced without one or more of these specific details.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms, unless the context clearly indicates otherwise. In addition, it should also be understood that the terms "comprise" and / or "include" used in the specification indicate the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0055] Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in various different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that the embodiments are provided so that the disclosure of the present application is complete and comprehensive, and the concepts of the exemplary embodiments are fully conveyed to those of ordinary skill in the art.

[0056] FIG. 1 is a structural schematic diagram of a cleaning device according to an embodiment of the present application. As shown in FIG. 1, the cleaning device includes a dust collection base station 1000 and a vacuum cleaner 2000. The vacuum cleaner 2000 is detachably connected to the dust collection base station 1000. When the vacuum cleaner 2000 is needed for cleaning, the vacuum cleaner 2000 can be removed from the dust collection base station 1000. After use, the vacuum cleaner 2000 can be placed in the dust collection base station 1000, and the dust collection base station 1000 is used to collect the debris stored in the vacuum cleaner 2000.

[0057] As shown in FIG. 1, the vacuum cleaner 2000 includes a dust cup 210. FIG. 2 is a structural schematic diagram of a dust cup according to an embodiment of the present application. As shown in FIG. 2, the dust cup 210 includes a cup body 211, a dust discharge cover 212, and a locking member 213. The dust discharge cover 212 is connected to the cup body 211, for example, by fixed connection, rotating connection, buckle connection, rotating connection, hinged connection, or magnetic connection, hinged connection, etc. The locking member 213 is connected to the cup body 211, and the locking member 213 can be used to lock the dust discharge cover 212 and unlock the dust discharge cover 212 under the triggering of an open cover structure 120 (as shown in FIG. 3).

[0058] The dust discharge cover 212 can be connected to the bottom of the cup body 211 through a rotating part 2110. Exemplarily, the rotating part 2110 can be a hinge, a rotating shaft, a torsional spring, etc.

[0059] The dust cup 210 is used to store the sundries sucked in during the working process of the dust collector 2000. When the dust collector 2000 is placed on the dust collecting base station 1000, the bottom of the dust cup 210 is inserted into the dust collecting base station 1000. The dust collecting base station 1000 can collect the sundries in the dust cup 210. The sundries in the dust cup 210 can fall into the dust collecting base station 1000 by opening the dust discharging cover 212 of the dust cup 210.

[0060] As shown in FIGS. 2-6 and 12, the cover opening structure 120 includes a trigger lever 121 and a driving mechanism. The trigger lever 121 is used to move under the action of the driving mechanism to trigger the dust discharging cover 212 of the dust cup 210 to open. The dust discharging cover 212 can be locked by a locking member 213 in the closed state. The locking member 213 can release the dust discharging cover 212 after being triggered, so that the dust discharging cover 212 is unlocked. When the dust cup 210 is placed on the base station body 110, the trigger lever 121 is moved by the driving mechanism, and the trigger lever 121 can move into the containing groove 110a and contact the locking member 213 to trigger the locking member 213 to release the dust discharging cover 212, so that the dust discharging cover 212 is unlocked.

[0061] FIG. 3 is a structural schematic diagram of a dust collecting base station according to an embodiment of the present application. As shown in FIG. 3, the dust collecting base station includes a base station body 110 and a cover opening structure 120. An end of the base station body 110 forms a containing groove 110a for containing an end of the dust cup 210. The cover opening structure 120 is configured to trigger the dust discharging cover 212 of the dust cup 210 to be unlocked if the air pressure in the containing groove 110a is within a preset negative pressure range.

[0062] In the embodiment of the present application, the preset negative pressure range can be a pressure range representing absolute pressure, for example, the preset negative pressure range can be 80 kPa-100 kPa; or the preset negative pressure range can be a pressure range representing relative pressure, for example, the preset negative pressure range can be -20 kPa-0, that is, the preset negative pressure range is the air pressure 20 kPa lower than the current actual ambient air pressure to the current actual ambient air pressure; or for example, -20 kPa--1 kPa, that is, the preset negative pressure range is the air pressure 20 kPa lower than the current actual ambient air pressure of the external environment where the dust collecting base station 1000 is located to the air pressure 1 kPa lower than the current actual ambient air pressure. The upper limit and the lower limit of the preset negative pressure range can be set according to specific use scenarios and requirements.

[0063] When the dust cup 210 of the dust collector 2000 is placed in the dust collecting base station 1000, the end of the dust cup 210 can be inserted into the accommodation groove 110a formed at the end of the base station body 110. By providing the cover opening structure 120, the cover 212 of the dust cup 210 can be unlocked when the air pressure in the accommodation groove 110a is within a preset negative pressure range. Since the air pressure in the accommodation groove 110a is within the preset negative pressure range when the cover 212 is unlocked, the pressure difference between the dust cup 210 and the accommodation groove 110a is within an acceptable range, and the impact of the cover 212 when it is opened by the pressure difference between the two sides is also within an acceptable range. The debris in the dust cup 210 enters the accommodation groove 110a under the action of the pressure difference between the dust cup 210 and the accommodation groove 110a, reducing or even avoiding the debris remaining in the dust cup, and avoiding excessive impact when the debris enters the accommodation groove 110a, which affects the normal use of the cleaning device.

[0064] The inventors have found through long-term research that when the pressure difference between the air pressure in the accommodation groove 110a and the air pressure in the dust cup 210 when the cover 212 is closed is large, the cover 212 is suddenly released, and the dust collecting base station 1000 can effectively collect the debris stored in the dust cup 210, including the emptying rate of the debris and the emptying effect of special debris (such as hair and wet dust), and the emptying effect of the dust cup 210 is improved in extreme cases (such as when the dust cup 210 contains a large amount of debris or the debris in the dust cup 210 is compressed and adhered).

[0065] Specifically, compared to the operation of providing a suction air flow to the dust cup 210 after the cover 212 is released to perform dust removal, the dust collecting base station 1000 can provide a suction air flow to the accommodation groove 110a. When the air pressure in the accommodation groove 110a is 3Kpa to 25Kpa lower than the air pressure in the dust cup 210, that is, when the preset negative pressure range is -3Kpa to -25Kpa, the dust collecting base station 1000 has a good emptying effect on the debris collected in the dust cup 210. Further, when the air pressure in the accommodation groove 110a is 7Kpa to 25Kpa lower than the air pressure in the dust cup 210, that is, when the preset negative pressure range is -7Kpa to -25Kpa, the dust collecting base station 1000 significantly improves the emptying effect on the debris collected in the dust cup 210, especially in the case of handling special debris and a full accumulation of debris, the dust collecting base station 1000 can still effectively empty the debris collected in the dust cup 210.

[0066] As shown in FIG. 3, the dust collecting base station can further include a shell 100 connected to the outside of the base station body 110. The shell 100 and the base station body 110 can be detachably connected to facilitate cleaning of the debris collected by the base station body 110.

[0067] Figure 4 is a schematic diagram of a partial structure of a dust collection base station according to an embodiment of the present application. As shown in Figure 4, the side wall of the accommodating groove 110a has a first through hole 110b, and the cover opening structure 120 is located at the side wall of the accommodating groove 110a, and the cover opening structure 120 includes a trigger rod 121 and a driving mechanism.

[0068] The trigger rod 121 is inserted into the first through hole 110b. The trigger rod 121 is used to move into the accommodating groove 110a along the first through hole 110b under the action of the driving mechanism, so as to trigger the opening of the dust discharge cover 212 of the dust cup 210.

[0069] The dust discharge cover 212 is locked by the locking piece 213 in the closed state. The locking piece 213 can release the dust discharge cover 212 after being triggered, so as to unlock the dust discharge cover 212. When the dust cup 210 is placed in the base station main body 110, the locking piece 213 of the dust cup 210 is located in the accommodating groove 110a and faces the trigger rod 121. In this example, the trigger rod 121 is moved by the driving mechanism, and the trigger rod 121 moves into the accommodating groove 110a and contacts the locking piece 213, which triggers the locking piece 213 to release the dust discharge cover 212, so as to unlock the dust discharge cover 212.

[0070] Before the driving mechanism drives the trigger rod 121 to move into the accommodating groove 110a, the end of the trigger rod 121 close to the inner side of the accommodating groove 110a can be flush with the inner wall of the accommodating groove 110a, or located in the first through hole 110b, that is, not protruding out of the first through hole 110b, so as to avoid affecting the placement of the lower end of the dust cup 210 into the accommodating groove 110a before unlocking.

[0071] Figure 5 is a schematic diagram of a structure of a cover opening structure according to an embodiment of the present application. As shown in Figure 5, in the cover opening structure, the driving mechanism includes a fixed support 122 and a first elastic member 123. The fixed support 122 is in sealing fit with the outer side wall of the base station main body 110, and the first elastic member 123 connects the trigger rod 121 and the fixed support 122. The fixed support 122, the first elastic member 123 and the base station main body 110 enclose an air cavity 120a, and the air cavity 120a is in communication with the accommodating groove 110a.

[0072] Since the air cavity 120a is in communication with the accommodating groove 110a, the air pressure in the air cavity 120a is consistent with the air pressure in the accommodating groove 110a. After the air pressure in the accommodating groove 110a drops, there is a difference in air pressure between the inside and outside of the air cavity 120a, and the force generated by the difference in air pressure between the inside and outside of the air cavity 120a acts on the first elastic member 123. When the air pressure in the accommodating groove 110a drops to a certain value, for example, within a preset negative pressure range, the force generated by the difference in air pressure between the inside and outside of the air cavity 120a exceeds the elastic force of the first elastic member 123, and is sufficient to cause the first elastic member 123 to deform inwardly of the air cavity 120a, thereby driving the trigger lever 121 to move. After the air pressure in the air cavity 120a recovers, the trigger lever 121 can be reset under the elastic force of the first elastic member 123. Since no motor or other device is needed to provide power, no additional energy consumption is required.

[0073] Here, the force affecting the movement of the trigger lever 121 can mainly include the elastic force of the first elastic member 123 and the force generated by the difference in air pressure between the inside and outside of the air cavity 120a acting on the first elastic member 123. The air pressure outside the air cavity 120a can refer to the air pressure on the side of the fixed support 122 away from the outer wall of the base station main body 110, for example, the air pressure in the environment. The elastic force of the first elastic member 123 can be adjusted by the first elastic member 123, for example, by adjusting the material, shape, size, etc. of the first elastic member 123 to make the elastic force generated by the first elastic member 123 a certain size, and the force generated by the air pressure difference can also be adjusted, for example, by adjusting the size of the air pressure in the accommodating groove 110a, the area of the air acting on the inside of the first elastic member 123, the area of the air acting on the outside of the first elastic member 123, etc. to make the force generated by the air pressure difference a certain size. It can be seen that the size of the elastic force of the first elastic member 123 can be adjusted so that the driving mechanism drives the trigger lever 121 to trigger the dust discharge cover 212 to unlock only when the pressure in the accommodating groove 110a reaches the required range.

[0074] As an example, the first elastic member 123 can be a rubber member.

[0075] FIG. 6 is a cross-sectional view of an opening cover structure according to an embodiment of the present application. As shown in FIG. 6, the first elastic member 123 is annular, the outer edge of the first elastic member 123 is connected to the fixed support 122, and the inner edge of the first elastic member 123 is connected to the trigger lever 121.

[0076] When the annular first elastic member 123 drives the trigger lever 121 to move, the forces generated by the various parts of the first elastic member 123 on the trigger lever 121 are symmetrical. This makes the direction of the force of the first elastic member 123 on the trigger lever 121 more stable, always along or approximately along the length direction of the trigger lever 121, making the movement of the trigger lever 121 more stable.

[0077] As an example, the trigger lever 121 comprises a lever body 1211 and a connecting plate 1212, one side of the connecting plate 1212 is concave, and one end of the lever body 1211 is connected to the concave side of the connecting plate 1212. The edge of the connecting plate 1212 is connected to the inner edge of the first elastic member 123.

[0078] As shown in FIG. 6, the first elastic member 123 comprises an annular connecting portion 1231 and an annular elastic portion 1232. The annular connecting portion 1231 is connected to the fixed support 122, and the outer edge of the annular elastic portion 1232 is connected to the annular connecting portion 1231. The inner edge of the annular elastic portion 1232 is connected to the trigger lever 121, and the annular elastic portion 1232 is arched away from the base body 110.

[0079] The outward arching of the annular elastic portion 1232 is conducive to maintaining the elasticity of the annular elastic portion 1232. During the process of gradually increasing the negative pressure in the air cavity 120a (i.e., gradually reducing the pressure drop), the outwardly arched annular elastic portion 1232 is more likely to maintain its shape, while when the negative pressure increases beyond a certain critical value, it will suddenly deform inward, driving the trigger lever 121 to move, so that the trigger lever 121 can generate sufficient impact force to push the locking member 213.

[0080] As shown in FIG. 6, the connection between the annular connecting portion 1231 and the annular elastic portion 1232 has an annular groove 123a, which is located on the side of the first elastic member 123 away from the base body 110.

[0081] When the first elastic member 123 deforms, the two sides of the annular groove 123a can be relatively opened, so that the first elastic member 123 can produce a larger deformation, and the stroke of the trigger lever 121 can be improved.

[0082] In some optional embodiments, as shown in FIG. 4, the side wall of the accommodating groove 110a further has a dust falling port 110c, which is located on the side of the first through hole 110b away from the opening of the accommodating groove 110a, and the dust falling port 110c communicates with the air cavity 120a.

[0083] In the above embodiments, by providing the dust falling port 110c, the impurities (such as dust, etc.) in the air cavity 120a can pass through the dust falling port 110c, so that the accumulation of impurities in the air cavity 120a can be avoided, and the normal movement of the driving structure can be ensured, so that the dust discharging cover 212 can be smoothly unlocked to realize self-cleaning dust collection.

[0084] In some optional embodiments, as shown in FIG. 5, the fixed support 122 has a protrusion 1221 on the side close to the base body 110, and the protrusion 1221 is at least partially located in the dust falling port 110c. The side of the protrusion 1221 close to the trigger lever 121 is a bevel 1221a.

[0085] The dust falling port 110c can serve to connect the air cavity 120a and the accommodating groove 110a. In addition, during use of the dust collecting base station 1000, some dust and other sundries can enter the air cavity 120a, and the sundries can accumulate in the air cavity 120a, which can affect the normal movement of the driving mechanism. By providing the protrusion 1221, the sundries in the air cavity 120a can fall into the accommodating groove 110a through the inclined surface 1221a of the protrusion 1221.

[0086] As shown in FIG. 5, the driving mechanism further includes an outer cover 124, which covers the fixed support 122. The outer cover 124 is connected to the base station body 110, and the outer cover 124 has a vent hole 124a.

[0087] The outer cover 124 and the fixed support 122 form a cavity, which is separated from the air cavity 120a. The cavity is connected to the outside through the vent hole 124a, so that the air pressure in the cavity is the same as the ambient air pressure. The outer cover 124 can provide protection, especially to protect the first elastic member 123, so as to avoid damage to the first elastic member 123, which can cause the cavity formed between the outer cover 124 and the fixed support 122 to be connected to the air cavity 120a.

[0088] In some examples, as shown in FIG. 6, the cover opening structure 120 further includes a second elastic member 127, which is sleeved on the trigger rod 121. The second elastic member 127 abuts against the trigger rod 121 and the base station body 110, respectively, to provide an acting force to the trigger rod 121 to move the trigger rod 121 out of the accommodating groove 110a.

[0089] Exemplarily, the second elastic member 127 can be a spring.

[0090] After the trigger rod 121 triggers the dust discharging cover 212 to be unlocked, the air pressure in the accommodating groove 110a starts to recover to the ambient air pressure. When the air pressure inside and outside the air cavity 120a is the same, the trigger rod 121 can be reset under the elastic force of the first elastic member 123 and the second elastic member 127.

[0091] The elastic force of the second elastic member 127 hinders the trigger lever 121 from moving into the accommodating groove 110a, and thus the elastic force of the second elastic member 127 also affects the timing at which the cover opening structure 120 triggers the dust discharging cover 212 to be unlocked. In the case where the driving mechanism remains unchanged, the greater the elastic force of the second elastic member 127, the lower the air pressure in the accommodating groove 110a when the cover opening structure 120 triggers the dust discharging cover 212 to be unlocked, and the smaller the elastic force of the second elastic member 127, the higher the air pressure in the accommodating groove 110a when the cover opening structure 120 triggers the dust discharging cover 212 to be unlocked. As described above, the pressure in the accommodating groove 110a can be adjusted to a required range by adjusting the elastic force of the first elastic member 123, so that the driving mechanism drives the trigger lever 121 to trigger the dust discharging cover 212 to be unlocked. However, the elastic force of the first elastic member 123 can be adjusted only within a limited range due to factors such as the elasticity of the material itself, and it can be difficult to meet the requirement that the dust discharging cover 212 be unlocked when the pressure in the accommodating groove 110a reaches a preset negative pressure range. By further providing the second elastic member 127, one or both of the first elastic member 123 and the second elastic member 127 can be adjusted to adjust the pressure in the accommodating groove 110a to a required range, so that the driving mechanism drives the trigger lever 121 to trigger the dust discharging cover 212 to be unlocked.

[0092] FIG. 7 is a schematic diagram of a partial structure of a dust collection base station according to an embodiment of the present application. As shown in FIG. 7, in another possible implementation, the driving mechanism can also include an air pressure sensor 125 and an electric push rod 126. The air pressure sensor 125 is at least partially located in the accommodating groove 110a, and is configured to detect the air pressure in the accommodating groove 110a. The electric push rod 126 is electrically connected to the air pressure sensor 125, and is further connected to the trigger lever 121.

[0093] The air pressure sensor 125 can directly detect the air pressure in the accommodating groove 110a, and the electric push rod 126 drives the trigger lever 121 to move when the air pressure sensor 125 detects that the air pressure in the accommodating groove 110a is within a preset negative pressure range, so as to trigger the dust discharging cover 212 to be unlocked.

[0094] FIG. 8 is a schematic diagram of a cross section of a dust collection base station according to an embodiment of the present application. As shown in FIG. 8, the dust collection base station further includes a first air suction assembly 1100, which is in communication with the accommodating groove 110a.

[0095] The first air suction assembly 1100 is configured to suck air from the accommodating groove 110a, so as to reduce the air pressure in the accommodating groove 110a, and to cause the air pressure in the accommodating groove 110a to drop to a preset negative pressure range, so as to trigger the cover opening structure 120 to act, and thus to unlock the dust discharging cover 212.

[0096] For example, the first air suction assembly 1100 can include an air suction pump.

[0097] In some examples, the first air extraction assembly 1100 can be located in the base station body 110.

[0098] In some other possible implementations, the first air extraction assembly 1100 can also be located outside the base station body 110, connected to the base station body 110 through a pipeline, and in communication with the accommodation groove 110a.

[0099] FIG. 9 is a structural schematic diagram of a dust collection base station according to an embodiment of the present application. As shown in FIG. 9, an end of the base station body 110 further forms an air extraction port 110d, which is in communication with the accommodation groove 110a, and is used to be connected with the dust collector 2000.

[0100] When the dust collector 2000 is placed in the base station body 110, the air extraction port 110d is in communication with the dust collector 2000, and the air in the accommodation groove 110a is extracted by using the suction of the dust collector 2000, so that the air pressure in the accommodation groove 110a is reduced. The air extraction port 110d directly uses the suction capacity of the dust collector 2000 itself to reduce the air pressure in the accommodation groove 110a, and does not need to additionally set a device for air extraction, which is conducive to reducing the cost of the dust collection base station 1000.

[0101] FIG. 10 is a structural schematic diagram of a dust collection base station according to an embodiment of the present application. As shown in FIG. 10, the base station body 110 has a dust collection bag installation cavity 110f inside, and a top end of the dust collection bag installation cavity 110f is in communication with the accommodation groove 110a. The dust collection bag installation cavity 110f can be arranged with a dust collection bag 1101, and when dust collection is performed, the sundries in the dust cup 210 fall into the dust collection bag 1101 through the accommodation groove 110a after the dust discharge cover 212 is opened.

[0102] As shown in FIG. 9, the base station body 110 has an air extraction channel 110e formed on the outside, and the air extraction channel 110e is in communication with the air extraction port 110d. The air extraction channel 110e extends to a bottom end of the dust collection bag installation cavity 110f, and the air extraction channel 110e is in communication with the bottom end of the dust collection bag installation cavity 110f. The air flow direction in the air extraction process is shown schematically by arrows in FIG. 9.

[0103] Since the air extraction channel 110e is in communication with the bottom end of the dust collection bag installation cavity 110f, in the air extraction process, the air flow is in the direction from the accommodation groove 110a to the top end of the dust collection bag installation cavity 110f, and then to the bottom end of the dust collection bag installation cavity 110f, that is, the air flow direction is from top to bottom, which is conducive to the unfolding of the dust collection bag 1101, so that the sundries in the dust cup 210 can more easily enter the dust collection bag 1101.

[0104] In addition, the opening of the dust collection bag 1101 can be attached to the inner wall of the dust collection bag mounting cavity 110f, so that the sundries can enter the dust collection bag 1101 as much as possible, and the sundries can not fall into the bottom end of the dust collection bag mounting cavity 110f from the gap between the dust collection bag 1101 and the inner wall of the dust collection bag mounting cavity 110f. The communication between the air suction channel 110e and the bottom end of the dust collection bag mounting cavity 110f can prevent the sundries from being sucked into the air suction channel 110e.

[0105] FIG. 11 is a structural schematic diagram of a cup body provided by an embodiment of the present application. As shown in FIG. 11, the cup body 211 includes a main body part 2111 and an air duct part 2112, and the air duct part 2112 is connected to the outside of the main body part 2111. The air duct part 2112 is formed with a first air duct 2112a and a second air duct 2112b. One end of the first air duct 2112a is in communication with the inside of the main body part 2111, and the other end of the first air duct 2112a is used to communicate with the air inlet pipe of the dust collector. The second air duct 2112b extends along the height direction of the main body part 2111. The end of the second air duct 2112b close to the dust discharge cover 212 is used to communicate with the containing groove 110a, and the end of the second air duct 2112b away from the dust discharge cover 212 is used to communicate with the second air suction assembly of the dust collector.

[0106] The first air duct 2112a is used for air inlet during the cleaning process of the dust collector 2000, and the sundries are sucked into the dust cup 210 of the dust collector 2000. The second air duct 2112b does not participate in the work. During the dust collection process, the bottom of the dust cup 210 is placed in the containing groove 110a, and the air suction assembly in the dust collector 2000 performs air suction through the second air duct 2112b, so that a negative pressure is formed in the containing groove 110a. The arrangement of the second air duct 2112b facilitates the communication between the containing groove 110a and the dust collector 2000, so that the air suction assembly does not need to be arranged in the dust collection base station 1000. The dust collector 2000 further includes a separator and a switchable air door. The separator can be located in the dust cup 210. The inlet of the separator is in communication with the first air duct 2112a, the airflow outlet of the separator is in communication with the second air suction assembly, and the sundries separated by the separator can be accumulated at the end of the dust cup 210 close to the dust discharge cover 212. The switchable air door can be arranged between the airflow outlet of the separator and the second air suction assembly. The air door can have a first state and a second state. In the first state, the air door closes the second air duct 2112b, the airflow outlet of the separator is in communication with the second air suction assembly, so that the dust collector 2000 can perform the cleaning work and suck the sundries into the dust cup 210. In the second state, the air door opens the second air duct 2112b, and separates the airflow outlet of the separator from the second air suction assembly. When the dust cup 210 is used for dust collection, the air door is in the second state.

[0107] Fig. 12 is a structural schematic view of a locking member according to an embodiment of the present application. As shown in Fig. 12, the locking member 213 comprises a lock 2131, the lock 2131 comprises a rotating connection portion 21311, a pressing unlocking portion 21312 and a hook portion 21313, and the rotating connection portion 21311 is connected between the pressing unlocking portion 21312 and the hook portion 21313. The rotating connection portion 21311 is rotatably connected with the cup body 211. The hook portion 21313 is located at the cup opening of the cup body 211, and the hook portion 21313 is used for clamping with the edge of the dust discharging cover 212.

[0108] The rotating connection portion 21311 is located at the middle position of the lock 2131, and the pressing unlocking portion 21312 and the hook portion 21313 are located on both sides of the rotating connection portion 21311. The lock 2131 can be rotated by pressing the pressing unlocking portion 21312, so that the hook portion 21313 is separated from the dust discharging cover 212, thereby unlocking the dust discharging cover 212. The lock 2131 has a simple structure and is easy to design. In addition, the structure of the lock 2131 is similar to that of a lever, so that the length of the pressing unlocking portion 21312 and the hook portion 21313 can be adjusted to enable the dust discharging cover 212 to be opened when the pressure in the accommodating groove 110a is within a preset negative pressure range.

[0109] As shown in Fig. 12, the locking member 213 further comprises a third elastic member 2132, and the third elastic member 2132 is located between the cup body 211 and the pressing unlocking portion 21312. The third elastic member 2132 is used to provide an acting force for rotating the pressing unlocking portion 21312 away from the cup body 211.

[0110] For example, the third elastic member 2132 can be a spring.

[0111] When the pressing unlocking portion 21312 is pressed to rotate the lock 2131, the elastic force of the third elastic member 2132 needs to be overcome at least. The third elastic member 2132 can avoid the lock 2131 being triggered too easily. In addition, since the elastic force of the third elastic member 2132 is similar to that of the second elastic member 127, both of which hinder the unlocking of the dust discharging cover 212, the elastic force of the third elastic member 2132 can also be adjusted to change the timing of the opening of the dust discharging cover 212, so that the pressure in the accommodating groove 110a reaches the required range, and then the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharging cover 212.

[0112] As shown in Fig. 12, the hook portion 21313 comprises a hook main body 21314 and a first wear-resistant block 21315, and the first wear-resistant block 21315 is connected with the hook main body 21314. The first wear-resistant block 21315 is used to contact with the dust discharging cover 212.

[0113] FIG. 13 is a schematic view of the cooperation between the hook portion and the dust discharging cover according to an embodiment of the present application. As shown in FIG. 13, the dust discharging cover 212 includes a dust discharging cover body 2121 and a second wear-resistant block 2122 connected to the dust discharging cover body 2121. The second wear-resistant block 2122 is configured to contact the hook portion 21313. When the dust discharging cover 212 is in the closed state, the first wear-resistant block 21315 contacts the second wear-resistant block 2122.

[0114] The contact between the first wear-resistant block 21315 and the second wear-resistant block 2122 can reduce the wear between the hook portion 21313 and the dust discharging cover 212, and avoid the difficulty in opening the lock catch 2131.

[0115] As shown in FIG. 13, the included angle a between the first locking surface 21313a of the hook portion 21313 and the second locking surface 212a of the dust discharging cover 212 is 0°-10°. The first locking surface 21313a is the surface of the hook portion 21313 that contacts the dust discharging cover 212, and the second locking surface 212a is the surface of the dust discharging cover 212 that contacts the hook portion 21313.

[0116] The small included angle between the two contacting surfaces of the hook portion 21313 and the dust discharging cover 212 can reduce the frictional resistance between the first locking surface 21313a and the second locking surface 212a during the opening of the dust discharging cover 212, reduce the wear, and facilitate the opening of the dust discharging cover 212. In addition, by setting the included angle a between the first locking surface 21313a of the hook portion 21313 and the second locking surface 212a of the dust discharging cover 212 to be 0°-10°, the hook portion 21313 and the dust discharging cover 212 can be stably buckled, for example, the hook portion 21313 and the dust discharging cover 212 can be stably buckled when the air pressure in the accommodating groove 110a does not reach the preset negative pressure range, thereby improving the stability of dust collection of the dust collection base station 1000.

[0117] The present application also provides a cleaning device, which includes the dust collection base station 1000 and the dust collector 2000, and the dust collector 2000 includes the dust cup 210. The dust collection base station 1000 can be any of the foregoing dust collection base stations, and the dust cup 210 can be any of the foregoing dust cups.

[0118] Since the opening cover structure 120 of the base 110 can trigger the unlocking of the dust discharge cover 212 of the dust cup 210 when the air pressure in the accommodating groove 110a is within the preset negative pressure range, when the dust discharge cover 212 of the dust cup 210 is unlocked, the air pressure difference between the dust cup 210 and the accommodating groove 110a is within an acceptable range, the impact generated when the dust discharge cover 212 is opened under the action of the air pressure difference on both sides is also within an acceptable range, and the debris in the dust cup 210 enters the accommodating groove 110a under the action of the air pressure difference between the dust cup 210 and the accommodating groove 110a, thereby reducing or even avoiding the debris remaining in the dust cup and avoiding the impact generated when the debris enters the accommodating groove, which affects the normal use of the cleaning device.

[0119] The embodiments of the present application also provide a dust collection method applied to a dust collection device including a dust cup and a cover body selectively closing the dust cup, the method including:

[0120] generating a negative pressure to act on the first device and cause the first device to act on the second device to release the cover body, so that the dust cup changes from the closed state to the open state.

[0121] In some optional embodiments, the cover body can be the aforementioned dust discharge cover 212 for selectively closing or opening the internal space of the dust cup 210, the first device can be the whole or part of the aforementioned opening cover structure 120, and the second device can be the whole or part of the aforementioned locking member 213. The dust collection device can include a negative pressure device, the negative pressure device can include at least one of the aforementioned first air suction assembly and the second air suction assembly, and the negative pressure device is used to generate a negative pressure, and the pressure difference generated by the negative pressure can cause the first device to move under the action of the air pressure difference and act on the second device to release the cover body.

[0122] In some optional embodiments, the dust collection device can include or be externally connected to any of the aforementioned dust collection base stations 1000, which can include a base body 110 having a receiving groove 110a at the top for the bottom of the dust cup 210 to extend into. By coordinating the vacuum cleaner 2000, the dust collection base station 1000, and the negative pressure device, the vacuum cleaner 2000 can suck the garbage on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device can suck the garbage in the dust cup 210 into the base body 110. The negative pressure device causes the air pressure in the base body 110 to form an air pressure difference with the air pressure in the external environment, which can generate a thrust to drive the cover opening structure 120 to slide towards the inside of the base body 110 to push the locking member 213, so that the locking member 213 releases the locking of the dust discharge cover 212, and the user can automatically open the dust discharge cover 212 without manually operating the locking member 213. Because there is also an air pressure difference between the air pressure in the base body 110 and the air pressure in the dust cup 210, an instantaneous impact force can be generated at the moment when the dust discharge cover 212 is opened to suck the garbage in the dust cup 210 into the base body 110, thereby reducing the residue of the garbage in the dust cup 210 and making the cleaning of the dust cup 210 more thorough and efficient. After the dust discharge cover 212 is opened, the negative pressure environment in the base body 110 can also continuously generate suction force on the garbage in the dust cup 210 to prevent backflow, and the dust collection base station 1000 can better collect the garbage of the vacuum cleaner 2000, and the use of the cleaning device is more convenient.

[0123] In some optional embodiments, the dust cup 210 is selectively communicated with a first cavity for dust collection, and the first cavity generates negative pressure through the negative pressure device.

[0124] The first device acts on the second device to release the cover, which includes that the negative pressure device generates negative pressure in the first cavity, and the first device moves under the action of the air pressure difference to push the second device to release the cover.

[0125] In some optional embodiments, the first cavity can be a cavity formed inside the aforementioned base body 110. In application, the selective communication of the dust cup 210 with the first cavity means that the communication state of the dust cup 210 with the first cavity is selectable, i.e., in one state, the dust cup 210 is communicated with the first cavity, and in another state, the dust cup 210 is not communicated with the first cavity. Specifically, the selective communication can be achieved by providing the first device, i.e., the aforementioned whole or part of the cover opening structure 120, at the connection between the dust cup 210 and the first cavity. The cover opening structure 120 can be in various forms, such as a push rod, a button, a slider, a slide rod, a lever, a cantilever, a piston rod, a spring telescopic rod, or a selection switch, etc.

[0126] In some alternative embodiments, the first cavity is externally provided with a second cavity, the first device is at least partially arranged in the second cavity, and the second cavity is in communication with the external environment of the first cavity, so as to generate an air pressure difference between the first cavity and the second cavity.

[0127] In some alternative embodiments, the first cavity is formed by the base station body 110, the second cavity is the air cavity 120a, the side wall of the base station body 110 is connected with the cover 124, the side wall of the base station body 110 is provided with the first through hole 110b, the cover 124 is provided with the air hole 124a opposite to the first through hole 110b, the cover 124 is formed with a receiving cavity, the air hole 124a is in communication with the receiving cavity and the external environment of the base station body 110, so as to generate an air pressure difference between the receiving cavity and the inside of the base station body 110, and the cover opening structure 120 penetrates through the first through hole 110b and part of the cover opening structure 120 is located in the receiving cavity. The receiving cavity is in communication with the inside of the base station body 110 through the first through hole 110b, and the receiving cavity is in communication with the external environment through the air hole 124a. When the air pressure inside the base station body 110 is lower than the air pressure of the external environment by a plurality of values, air in the external environment can enter the receiving cavity of the cover 124 through the air hole 124a to push the cover opening structure 120.

[0128] In some alternative embodiments, the first device includes a moving part provided with a deformation part, so that the first device moves under the action of the air pressure difference to push the second device to release the cover, and the deformation part is used to apply a restoring force to the moving part in a direction opposite to the moving direction of the moving part, and the restoring force is less than or equal to the force generated based on the air pressure difference during the movement of the moving part.

[0129] In some alternative embodiments, the moving part includes the rod body 1211 and the connecting disc 1212, and the deformation part includes the second elastic member 127. One end of the rod body 1211 penetrates through the first through hole 110b, the other end of the rod body 1211 is connected with the connecting disc 1212, the connecting disc 1212 is located in the inside of the cover 124, the outer periphery of the rod body 1211 is sleeved with the second elastic member 127, and the second elastic member 127 is used to apply a force to the connecting disc 1212 in the initial position. When the second elastic member 127 is in the initial compression state, the connecting disc 1212 abuts against the inner wall of the cover 124 to close the air hole 124a. When the air pressure difference between the external environment and the inside of the base station body 110 is greater than the elastic force of the second elastic member 127, the second elastic member 127 is further compressed on the basis of the initial compression state, the connecting disc 1212 slides under the action of the air pushing force, and then the rod body 1211 abuts against the locking member 213.

[0130] In some optional embodiments, during the movement of the moving part, the restoring force is less than or equal to the force generated based on the air pressure difference, so that the deformed member can at least maintain the initial compressed state (when the restoring force is equal to the force generated based on the air pressure difference, the deformed member can maintain the initial compressed state; when the restoring force is less than the force generated based on the air pressure difference, the force generated based on the air pressure difference can further compress the deformed member), so that the connecting disc 1212 slides under the action of the air thrust, and then the rod body 1211 abuts against the locking member 213.

[0131] The dust collecting method has the technical effects as described above.

[0132] Please refer to FIG. 1, FIG. 13 to FIG. 18, and FIG. 24 to FIG. 25, the cleaning device provided by the embodiments of the present application comprises a dust collector 2000, a dust collecting base station 1000, and a negative pressure device 30; the dust collector 2000 comprises a dust cup 210 and a first cover 12, the first cover 12 is used for closing or opening the internal space of the dust cup 210, the dust cup 210 is provided with a lock catch 2131, and the lock catch 2131 is used for locking the first cover 12.

[0133] The cleaning device further comprises an unlocking member 22, and the negative pressure device 30 is used for generating negative pressure in the dust collecting base station 1000, so that the unlocking member 22 acts on the lock catch 2131 to unlock the first cover 12 under the action of the air pressure difference.

[0134] In the above embodiments, the first cover 12 can close or open the inner space of the dust cup 210 in various ways. For example, the first cover 12 can selectively close the inner space of the dust cup 210 by, for example, fixed connection, rotary connection, snap connection, rotating connection, hinged connection, or magnetic connection. The lock 2131 can be provided on the dust cup 210 by, for example, fixed connection, rotary connection, snap connection, rotating connection, or magnetic connection. The lock 2131 is used to lock the first cover 12. For example, the lock 2131 can lock the first cover 12 by contact or non-contact methods such as clamping, buckling, hinging, or magnetic connection. The cleaning device further comprises an unlocking member 22, which can be arranged at various positions of the cleaning device, such as the dust collection base station 1000 or the dust collector 2000. The unlocking member 22 can have various forms, such as a push rod, a button, a slider, a slide rod, a lever, a cantilever, a piston rod, a spring telescopic rod, or a selection switch. The negative pressure device 30 is used to generate negative pressure, for example, to generate negative pressure in the dust collection base station 1000, so that the unlocking member 22 acts on the lock 2131 to unlock the first cover 12 under the action of the pressure difference. The negative pressure device 30 can be various devices that generate suction force or pressure, or change airflow speed to generate pressure difference. The unlocking member 22 can slide, roll, rotate, or perform other actions under the action of the pressure difference and act on the lock 2131 to unlock the first cover 12. For example, the unlocking member 22 can act on the lock 2131 by force. When the first cover 12 is unlocked, the garbage in the dust cup 210 is collected into the dust collection base station 1000. The user can automatically open the first cover 12 without manually operating the lock 2131, which can make the cleaning device simple and efficient in self-cleaning.

[0135] In some embodiments, referring to FIGS. 13-18 and 24-25, the bottom of the dust cup 210 is provided with a dust discharge port 101, one end of the first cover 12 is hinged to one side of the bottom of the dust cup 210, and the other side of the bottom of the dust cup 210 is rotatably connected with a lock 2131, which is used to lock the other end of the first cover 12.

[0136] The dust collection base station 1000 comprises a dust collection box 21 and an unlocking member 22. The top of the dust collection box 21 has a dust collection port 201 for the bottom of the dust cup 210 to extend into. The sidewall of the dust collection box 21 has a socket 202 for the unlocking member 22 to slide and fit.

[0137] The negative pressure device 30 is used to generate negative pressure in the inner part of the dust collection box 21, which can make the unlocking member 22 move under the action of the pressure difference to push the lock 2131 away from the first cover 12. In application, the unlocking member 22 moves under the action of the pressure difference, which can be sliding, translation, or telescoping.

[0138] In the prior art, since the garbage in the dust cup can only fall to the dust collecting base station under the action of gravity, garbage with viscosity or after being squeezed is easily attached to the inner wall of the dust cup. After the vacuum cleaner is used for many times, the garbage remaining in the dust cup will gradually accumulate, making it more difficult to fall, and thus the user needs to manually clean the garbage in the dust cup.

[0139] The cleaning device provided by the embodiment of the present application is matched by the vacuum cleaner 2000, the dust collecting base station 1000 and the negative pressure device 30. The vacuum cleaner 2000 can suck the garbage on the ground into the dust cup 210, and the dust collecting base station 1000 and the negative pressure device 30 can suck the garbage in the dust cup 210 into the dust collecting box 21. The negative pressure device 30 forms a pressure difference between the air pressure in the dust collecting box 21 and the air pressure in the external environment, so that a pushing force is generated at the socket 202 to drive the unlocking piece 22 to slide towards the inside of the dust collecting box 21 to push the lock catch 2131, so that the lock catch 2131 releases the locking of the first cover body 12, and the user can automatically open the dust discharge port 101 without manually operating the lock catch 2131. Since the air pressure in the dust collecting box 21 and the air pressure in the dust cup 210 also form a pressure difference, an instantaneous impact force is generated at the moment when the first cover body 12 opens the dust discharge port 101 to suck the garbage in the dust cup 210 into the dust collecting box 21, thereby reducing the garbage remaining in the dust cup 210 and making the cleaning of the dust cup 210 more thorough and efficient. After the first cover body 12 opens the dust discharge port 101, the negative pressure environment in the dust collecting box 21 can continuously generate suction force on the garbage in the dust cup 210 to prevent backflow, and the dust collecting base station 1000 collects the garbage of the vacuum cleaner 2000 more effectively, and the use of the cleaning device is more convenient.

[0140] In application, the negative pressure device 30 can be a fan. When the cleaning device performs a dust collection condition, the vacuum cleaner 2000 is operated alone, and the garbage on the ground is sucked into the dust cup 210 by the working of the negative pressure device 30. When the cleaning device performs a dust discharge condition, the vacuum cleaner 2000 is placed in the dust collecting base station 1000, and the garbage in the dust cup 210 is sucked into the dust collecting box 21 by the working of the negative pressure device 30.

[0141] Specifically, the capacity of the dust collecting box 21 is larger than that of the dust cup 210. After the vacuum cleaner 2000 is used for many times, the dust collecting box 21 only needs to be cleaned once to continue collecting the garbage of the dust cup 210, thereby saving the time and effort of the user in cleaning the garbage of the entire cleaning device.

[0142] In application, the cleaner 2000 is further provided with a handle 17, an air pipe 18 and a suction head 19, the handle 17 and the suction head 19 are respectively installed at two ends of the air pipe 18, a top of the dust cup 210 is connected with the handle 17, a side wall of the dust cup 210 is connected with a side wall of the air pipe 18, the air pipe 18 has a dust outlet 105 in communication with an inside of the dust cup 210, when the cleaning device performs a dust collection mode, dirt on a ground or a table is sucked by the suction head 19 and then is transmitted from the dust outlet 105 to the dust cup 210 through the air pipe 18.

[0143] In one embodiment, referring to FIG. 20 and FIG. 21, the inside of the dust cup 210 is formed with a third air duct 113, a second air duct 2112b and a first air duct 2112a, the dust outlet 101 and the first air duct 2112a are both in communication with the third air duct 113, the second air duct 2112b is isolated from the third air duct 113, and the bottom of the dust cup 210 further has an air inlet 102 in communication with the second air duct 2112b, the air inlet 102 is used to connect with a top of the dust collecting box 21;

[0144] When the cleaning device performs the dust collection mode, the first airflow generated by the negative pressure device 30 is transmitted through the air ducts including the third air duct 113 and the first air duct 2112a;

[0145] When the cleaning device performs the dust discharging mode, the second airflow generated by the negative pressure device 30 is transmitted through the air ducts including the second air duct 2112b.

[0146] In application, the third air duct 113 is isolated from the second air duct 2112b in the dust discharging mode, which can avoid the dust collection mode and the dust discharging mode of the cleaning device from affecting each other, and the flow directions of air and dirt are more accurate.

[0147] It should be noted that the first airflow can be an airflow flowing in the cleaning device when the cleaning device performs the dust collection mode, and the second airflow can be an airflow flowing in the cleaning device when the cleaning device performs the dust discharging mode. For example, the first airflow can refer to air from an external environment flowing to the inside of the dust cup 210 through the third air duct 113 and the first air duct 2112a due to negative pressure generated by the negative pressure device 30, and the first airflow is used to collect dirt and filth from the external environment to the inside of the dust cup 210. The second airflow can refer to air flowing through the second air duct 2112b from the inside of the dust cup 210 due to negative pressure generated by the negative pressure device 30, and the second airflow is used to discharge dirt and filth collected in the dust cup 210 to the dust collecting box 21.

[0148] Specifically, the dust cup 210 has a cylindrical structure, the third air duct 113 and the second air duct 2112b both extend along an axial direction of the dust cup 210, and the first air duct 2112a extends along a tangential direction of the dust cup 210, and the first air duct 2112a is in communication with the dust outlet 105 of the air pipe 18.

[0149] In one embodiment, referring to Figs. 15, 16, 20-22, the top of the dust cup 210 is provided with a second cover 14 having a first opening 103 communicating with the third air duct 113 and a second opening 104 communicating with the second air duct 2112b, the second cover 14 being rotatably connected with an air duct switching member 15 at a side away from the dust discharge port 101, the air duct switching member 15 being used to selectively open the first opening 103 and the second opening 104, i.e. the air duct switching member 15 is used to open one of the first opening 103 and the second opening 104 and close the other one.

[0150] In application, the dust discharge port 101 and the first opening 103 respectively communicate with opposite ends of the third air duct 113, the air inlet 102 and the second opening 104 respectively communicate with opposite ends of the second air duct 2112b, by setting the air duct switching member 15 to control the conduction state of the third air duct 113 and the second air duct 2112b, the air sucked by the cleaner 2000 can have different flow directions, so as to perform the dust suction working condition and the dust discharge working condition as needed.

[0151] In one embodiment, referring to Figs. 15, 16, 20-22, the air duct switching member 15 includes a first shielding part 151 and a second shielding part 152 connected with each other, the first shielding part 151 corresponding to the first opening 103, and the second shielding part 152 corresponding to the second opening 104. That is, the first shielding part 151 is used to selectively open the first opening 103, and the second shielding part 152 is used to selectively open the second opening 104.

[0152] In application, the second cover 14 is snap-connected or bolt-connected to the top of the dust cup 210, opposite sides of the first shielding part 151 are rotatably connected with the second cover 14, and an elastic member is connected between the first shielding part 151 and the second cover 14. By elastic deformation of the elastic member, the first shielding part 151 and the second shielding part 152 can be driven to swing in opposite directions. When the cleaning device performs the dust suction working condition, the first opening 103 is opened and the second opening 104 is closed, only the third air duct 113 is conducted. When the cleaning device performs the dust discharge working condition, the first opening 103 is closed and the second opening 104 is opened, only the second air duct 2112b is conducted. In application, the elastic member can be a spring, an elastic pin, etc.

[0153] In one embodiment, referring to Figs. 15, 16, 20-23, a push rod 141 is slidably installed in the second air duct 2112b, the top of the dust collecting box 21 further has an air outlet 203 and is provided with a stand 23 at the air outlet 203, one end of the push rod 141 is hinged to the air duct switching member 15, and the other end is abutted by the stand 23;

[0154] The inner wall of the second air duct 2112b is provided with a sleeve 142, and the push rod 141 is sleeved on the sleeve 142. The sleeve 142 is used to prevent the push rod 141 from deviating during sliding.

[0155] In application, the length direction of the push rod 141 is parallel to the extension direction of the second air duct 2112b. The inner wall of the second air duct 2112b is provided with a sleeve 142. The push rod 141 penetrates the middle part of the sleeve 142. The sleeve 142 is used to prevent the push rod 141 from deviating during sliding, so that the push rod 141 can drive the air duct conversion piece 15 to swing more smoothly.

[0156] In application, referring to FIGS. 17, 18 and 24, the side wall of the dust collecting box 21 is connected with the rear shell 27 to jointly form the dust discharging cavity 2101. The side wall of the dust collecting box 21 is also provided with a third opening 206. The air outlet 203 and the third opening 206 are both communicated with the dust discharging cavity 2101.

[0157] Specifically, when the bottom of the dust cup 210 extends into the top of the dust collecting box 21, the first cover 12 does not open the dust discharging port 101, and the dust discharging port 201 is in a closed state. The air outlet 203 and the air inlet 102 are communicated with each other. The stand column 23 penetrates the air inlet 102 and abuts against the push rod 141. The push rod 141 drives the air duct conversion piece 15 to swing to the state that the first opening 103 is closed and the second opening 104 is opened. The second air duct 2112b is in a conducting state. After the negative pressure device 30 is started, the air in the dust collecting box 21 enters the dust discharging cavity 2101 through the third opening 206, enters the air inlet 102 through the air outlet 203, flows through the second air duct 2112b, and is discharged from the second opening 104 of the dust cup 210. Thus, a negative pressure environment can be formed in the dust collecting box 21.

[0158] In one embodiment, referring to FIGS. 15, 16, 20 to 22, the side of the second cover 14 facing the dust discharging port 101 is provided with a separator 16 at the first opening 103. The separator 16 is used to filter the first airflow when the dust collecting mode is performed.

[0159] The separator 16 includes a sleeve 161, a cyclone cone 162 and a filter 163. The sleeve 161 is connected with the second cover 14. The cyclone cone 162 is rotationally connected to the inside of the sleeve 161 and points to the dust discharging port 201. The filter 163 is sleeved on the sleeve 161. The cyclone cone 162 is used to guide the first airflow flowing into the third air duct 113 from the first air duct 2112a to be discharged from the first opening 103. In this way, the turbulence of the airflow in the third air duct 113 can be reduced, the efficiency of the dust collector 2000 can be improved, and the noise of the dust collector 2000 can be reduced.

[0160] In use, the separator 16 is used to filter the garbage and air from the first air duct 2112a into the third air duct 113, so that the garbage is retained in the third air duct 113 and the air flows out of the third air duct 113 from the first opening 103, thereby preventing the garbage sucked into the dust cup 210 from being discharged to the outside environment again, so that the cleaning effect of the cleaner 2000 is better.

[0161] In one embodiment, referring to Figs. 15 and 16, the sidewall of the dust cup 210 is formed with a mounting groove 106 for arranging the lock catch 2131.

[0162] In use, the lock catch 2131 is arranged in the mounting groove 106, so that the lock catch 2131 can be prevented from being touched by mistake by a user to open the first cover 12. The middle portion of the lock catch 2131 is rotationally connected to the opposite sidewalls of the mounting groove 106. The upper portion of the lock catch 2131 is away from the dust discharging port 101. A restoring member is connected between the upper portion of the lock catch 2131 and the bottom wall of the mounting groove 106, and is used to restore the lock catch 2131 to the initial position. The lower portion of the lock catch 2131 extends to the dust discharging port 101, and is provided with a hook for locking the first cover 12. The restoring member can be a spring, a rubber, a plastic member, a stretchable belt, an air spring, etc.

[0163] Specifically, when the unlocking member 22 does not abut against the lock catch 2131, the restoring member is in the initial compressed state. When the unlocking member 22 abuts against the upper portion of the lock catch 2131 away from the surface of the restoring member, the restoring member is further compressed on the basis of the initial compressed state, so as to drive the bottom portion of the lock catch 2131 to swing about the middle portion of the lock catch 2131, so that the lower portion of the lock catch 2131 is separated from the first cover 12.

[0164] In one embodiment, referring to Figs. 17 to 19, the sidewall of the dust collecting box 21 is connected with a cover 24. The cover 24 is formed with a containing cavity and is provided with a gas permeable hole 204 opposite to the insertion port 202. The gas permeable hole 204 communicates the containing cavity with the outside environment of the dust collecting box 21, so as to generate a pressure difference between the containing cavity and the dust collecting box 21. The unlocking member 22 penetrates through the insertion port 202 and part of the unlocking member 22 is located in the containing cavity.

[0165] In use, the containing cavity is communicated with the inside of the dust collecting box 21 through the insertion port 202, and is communicated with the outside environment through the gas permeable hole 204. When the air pressure in the dust collecting box 21 is lower than the air pressure in the outside environment by a plurality of values, the air in the outside environment can enter the containing cavity of the cover 24 from the gas permeable hole 204 to push the unlocking member 22.

[0166] In one embodiment, please refer to FIG. 16 to FIG. 19, the unlocking member 22 comprises a sliding piston rod 221 and a sliding block 222, one end of the piston rod 221 penetrates the insertion hole 202, the other end of the piston rod 221 is connected with the sliding block 222, the sliding block 222 is arranged inside the cover 24, and the outer periphery of the piston rod 221 is sleeved with a deformation member 223 for force to the initial position of the sliding block 222.

[0167] In application, when the dust collector 2000 is not placed in the dust collecting base station 1000, the deformation member 223 is in the initial compressed state, and the sliding block 222 abuts against the inner wall of the cover 24 to close the air hole 204; after the dust collector 2000 is placed in the dust collecting base station 1000 for a period of time, the air pressure difference between the external environment and the dust collecting box 21 is greater than the elastic force of the deformation member 223, the deformation member 223 is further compressed on the basis of the initial compressed state, the sliding block 222 slides under the action of the air thrust, and then the piston rod 221 abuts against the lock buckle 2131. In application, the deformation member refers to a component that can be elastically deformed and restored, and the specific structure includes but is not limited to a spring, a rubber, a tensile belt, an air spring and the like.

[0168] In one embodiment, the air pressure difference ranges from 3KPa to 25KPa. In the embodiment of the application, a suitable negative pressure can be beneficial to the unlocking member 22 acting on the lock buckle 2131 to unlock the first cover 12 under the action of the air pressure difference, so as to realize efficient self-cleaning of the dust cup 210. In application, the air pressure difference can be 3KPa, 5KPa, 8KPa, 10KPa, 12KPa, 13KPa, 14KPa, 15KPa, 16KPa, 18KPa, 20KPa, 21KPa, 22KPa, 23KPa, 24KPa, 25KPa or any value within the range of 3KPa to 25KPa.

[0169] In an embodiment, the air pressure difference ranges from 7 KPa to 25 KPa. Limiting the air pressure difference of the cleaning device to 7 KPa to 25 KPa is a more optimal solution that adapts to the structural design and functional requirements. From the perspective of unlocking reliability, the lower limit of 7 KPa is higher than the low threshold design, which can provide sufficient driving force for the unlocking part 22: when negative pressure is generated in the dust collection box 21, the cover 24 container cavity and the dust collection box 21 form the air pressure difference, which can ensure that the slider 222 overcomes the elastic force of the deformation part 223 to push the piston rod 221, and stably acts on the lock catch 2131 to unlock the first cover 12, avoiding unlocking jamming or failure due to air pressure fluctuations. From the perspective of dust removal stability and component protection, the upper limit of 25 KPa can avoid excessive negative pressure: on the one hand, it prevents the first cover 12 from being impacted too much at the moment of opening, avoiding damage to the hinge of the cover or splashing of foreign matter; on the other hand, it cooperates with the third air duct 113 and the second air duct 2112b of the dust cup 210 to form a stable air flow field. During the dust removal working condition, the second air flow smoothly flows along the second air duct 2112b, which not only completely removes foreign matter, especially sticky debris, from the dust cup 210 through negative pressure suction, but also avoids strong air flow from causing the air duct switching part 15 to deviate or the push rod 141 to jam. At the same time, this range balances energy consumption and cleaning effect: negative pressure above 7 KPa meets the dust removal suction requirement, and negative pressure below 25 KPa avoids excessive work of the negative pressure device 30, taking into account the use cost and equipment life, and comprehensively improving the running stability and practicality of the cleaning device.

[0170] In an embodiment, referring to FIGS. 17 and 18, the dust collection base station 1000 further includes a dust collection bag 1101 and a front shell 26, the dust collection bag 1101 is arranged inside the dust collection box 21, and the front shell 26 is detachably mounted on the side wall of the dust collection box 21.

[0171] In application, the side wall of the dust collection box 21 further has a taking opening 205 for detachable mounting of the front shell 26. The dust collection bag 1101 is snap-fitted to the inner circumferential wall of the dust collection box 21, and the garbage falling from the dust cup 210 into the dust collection box 21 is collected by the dust collection bag 1101. The dust collection bag 1101 can be taken out from the taking opening 205 to discharge the collected garbage by detaching the front shell 26, and the dust collection base station 1000 is convenient to use.

[0172] In an embodiment, referring to FIGS. 12 to 18 and FIG. 24, the dust collector 2000 is provided with a negative pressure device 30.

[0173] In application, the negative pressure device 30 is arranged in the handle 17, the outer periphery of the handle 17 is provided with a plurality of air outlets 107, the negative pressure device 30 can independently generate negative pressure in the dust cup 210 when the cleaning device performs the dust collection working condition, and the negative pressure device 30 can also generate negative pressure in the dust collection box 21 when the cleaning device performs the dust removal working condition.

[0174] Specifically, when the cleaning device is in the dust suction mode, the negative pressure device 30 works, and air from the outside environment flows into the air pipe 18 through the dust suction head 19, flows into the third air duct 113 through the first air duct 2112a from the dust outlet 105, and then flows out of the dust cup 210 from the first opening 103 through the separator 16. Finally, the air flows out of the air outlet 107 of the handle 17.

[0175] Specifically, when the cleaning device is in the dust discharge mode, the negative pressure device 30 works, and air in the dust collection box 21 flows into the air inlet 102 through the dust discharge cavity 2101 from the third opening 206, and then flows out of the dust cup 210 from the second opening 104 through the second air duct 2112b. Finally, the air flows out of the air outlet 107 of the handle 17.

[0176] In one embodiment, referring to FIGS. 13-18 and 25, the dust collector 2000 and the dust collection base station 1000 are both provided with a negative pressure device 30.

[0177] In application, the number of negative pressure devices 30 is two, one of which is placed in the handle 17, and the other is placed in the dust collection box 21. When the cleaning device is in the dust discharge mode, the two negative pressure devices 30 work simultaneously to make the cleaning efficiency of the dust collection base station 1000 higher.

[0178] Specifically, when the cleaning device is in the dust discharge mode, the negative pressure device 30 in the dust collection box 21 works on the basis of the negative pressure device 30 in the handle 17, which can increase the rate of air in the dust collection box 21 flowing into the dust discharge cavity 2101 from the third opening 206, thereby shortening the time required for the internal environment of the dust collection box 21 to form a negative pressure environment.

[0179] The application provides a dust collection method applied to a dust collection device comprising a dust cup and a cover body selectively closing the dust cup, the method comprising:

[0180] generating a negative pressure to act on a first device and cause the first device to move, the first device acting on a second device to release the cover body, so that the dust cup changes from a closed state to an open state.

[0181] In some optional embodiments, the cover body can be the first cover body 12 in the embodiments of the first aspect, used to selectively close or open the internal space of the dust cup 210, the first device can be the unlocking member 22 in the embodiments of the first aspect, and the second device can be the locking buckle 2131 in the embodiments of the first aspect. The dust collection device can comprise a negative pressure device 30 as described in the embodiments of the first aspect for generating a negative pressure, and the pressure difference generated by the negative pressure can cause the first device to move under the action of the air pressure difference and act on the second device to release the cover body.

[0182] In some optional embodiments, the dust collection device can include or be coupled with the dust collection base station 1000 of the embodiments of the first aspect, and the dust collection base station 1000 can include the dust collection box 21, the top of the dust collection box 21 having the dust collection port 201 for the bottom of the dust cup 210 to extend into. By cooperating the dust collector 2000, the dust collection base station 1000, and the negative pressure device 30, the dust collector 2000 can suck the garbage on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device 30 can suck the garbage in the dust cup 210 into the dust collection box 21. The negative pressure device 30 causes the air pressure in the dust collection box 21 to form an air pressure difference with the air pressure of the external environment, so that a pushing force is generated to drive the unlocking member 22 to slide towards the inside of the dust collection box 21 to the pushing lock 2131, so that the lock 2131 releases the locking of the first cover body 12, and the user can automatically open the dust discharge port 101 of the first cover body 12 without manually operating the lock 2131. Because the air pressure in the dust collection box 21 also forms an air pressure difference with the air pressure in the dust cup 210, an instantaneous impact force is generated to suck the garbage in the dust cup 210 into the dust collection box 21 at the moment when the first cover body 12 opens the dust discharge port 101, thereby reducing the residue of the garbage in the dust cup 210 and making the cleaning of the dust cup 210 more thorough and efficient. After the first cover body 12 opens the dust discharge port 101, the negative pressure environment in the dust collection box 21 can also continuously generate suction force on the garbage in the dust cup 210 to prevent backflow, so that the dust collection base station 1000 collects the garbage of the dust collector 2000 more effectively, and the use of the cleaning device is more convenient. In some optional embodiments, the dust cup is selectively communicated with the first cavity for dust collection, and the first cavity generates negative pressure through the negative pressure device.

[0183] The first device acts on the second device to release the cover body, which includes that the negative pressure device is used to generate negative pressure in the first cavity, so that the first device moves under the action of the air pressure difference to push the second device to release the cover body.

[0184] In some optional embodiments, the first cavity can be a cavity formed in the inside of the dust collection box 21 of the first aspect. In application, the selective communication of the dust cup with the first cavity means that the communication state of the dust cup with the first cavity is selectable, that is, in one state, the dust cup is communicated with the first cavity, and in another state, the dust cup is not communicated with the first cavity. Specifically, the selective communication can be achieved by providing the first device, that is, the unlocking member 22 of the first aspect, at the connection between the dust cup and the first cavity. The unlocking member 22 can be in various forms, such as a push rod, a button, a slider, a slide rod, a lever, a cantilever, a piston rod, a spring telescopic rod, or a selection switch, etc.

[0185] In some optional embodiments, a second cavity is provided outside the first cavity, and the first device is at least partially arranged in the second cavity, and the second cavity is communicated with the external environment of the first cavity to generate an air pressure difference between the first cavity and the second cavity.

[0186] In some alternative embodiments, the first cavity can be a cavity formed by the dust collecting box 21 of the first aspect, and the second cavity can be a receiving cavity formed by the cover 24. The sidewall of the dust collecting box 21 is connected with the cover 24. The sidewall of the dust collecting box 21 is provided with a socket 202. The cover 24 is provided with a gas permeable hole 204 opposite to the socket 202. The cover 24 forms a receiving cavity. The gas permeable hole 204 connects the receiving cavity with the outside environment of the dust collecting box 21, so as to generate a gas pressure difference between the receiving cavity and the dust collecting box 21. The unlocking member 22 penetrates through the socket 202, and part of the unlocking member 22 is located in the receiving cavity. The receiving cavity is connected with the inside of the dust collecting box 21 through the socket 202, and is connected with the outside environment through the gas permeable hole 204. When the gas pressure in the dust collecting box 21 is lower than that of the outside environment by a certain value, air in the outside environment can enter the receiving cavity of the cover 24 through the gas permeable hole 204 to push the unlocking member 22.

[0187] In some alternative embodiments, the first device includes a moving part provided with a deformation part. The moving part moves under the action of the gas pressure difference to push the second device to release the cover. The deformation part is used to apply a restoring force to the moving part in the opposite direction of the movement direction of the moving part. During the movement of the moving part, the restoring force is less than or equal to the force generated based on the gas pressure difference.

[0188] In some alternative embodiments, the moving part can include the piston rod 221 and the sliding block 222 in the embodiments of the first aspect, and the deformation part can include the deformation member 223 in the embodiments of the first aspect. One end of the piston rod 221 penetrates through the socket 202. The other end of the piston rod 221 is connected with the sliding block 222. The sliding block 222 is located in the inside of the cover 24. The piston rod 221 is sleeved with the deformation member 223. The deformation member 223 is used to apply a force to the sliding block 222 in the initial position direction. When the deformation member 223 is in the initial compression state, the sliding block 222 abuts against the inner wall of the cover 24 to close the gas permeable hole 204. When the gas pressure difference between the outside environment and the inside of the dust collecting box 21 is greater than the elastic force of the deformation member 223, the deformation member 223 is further compressed on the basis of the initial compression state. The sliding block 222 slides under the action of the air pushing force, and then the piston rod 221 abuts against the lock buckle 2131.

[0189] In some alternative embodiments, during the movement of the moving part, the restoring force is less than or equal to the force generated based on the gas pressure difference, so that the deformation member can at least maintain the initial compression state (when the restoring force is equal to the force generated based on the gas pressure difference, the deformation member can maintain the initial compression state; when the restoring force is less than the force generated based on the gas pressure difference, the force generated based on the gas pressure difference can further compress the deformation member), so that the sliding block 222 slides under the action of the air pushing force, and then the piston rod 221 abuts against the lock buckle 2131.

[0190] The dust collection method according to the embodiments has the technical effects as described with reference to the embodiments of the first aspect, and details are not repeated here.

[0191] As shown in FIGS. 26-31, the cleaning device according to the embodiments of the present application comprises: a vacuum cleaner 310, the vacuum cleaner 310 comprising a dust collection chamber 311 for collecting foreign matters; and a dust collection base station 1000 configured to be detachably connected to the dust collection chamber 311 to remove the foreign matters collected in the dust collection chamber; at least one of the vacuum cleaner 310 and the dust collection base station 1000 is provided with a negative pressure device 30 configured to reduce the internal air pressure of the dust collection base station 1000; wherein the dust collection chamber 311 comprises: a body 3111; a first cover 12 which is openably and closably arranged on the body 3111; and a fixing member 3112 configured to relatively fix the first cover 12 and the body 3111, so that the body 3111 and the first cover 12 form a sealed space, and release the first cover 12 to open the sealed space when the internal air pressure of the dust collection base station 1000 meets a preset condition.

[0192] When the cleaning device needs to perform the dust collection operation to remove the foreign matters stored in the dust collection chamber 311, the dust collection chamber 311 of the vacuum cleaner 310 is connected to the dust collection base station 1000. The negative pressure device 30 is started to reduce the internal air pressure of the dust collection base station 1000. At this time, the fixing member 3112 of the dust collection chamber 311 can respond to the change of the air pressure, and when the internal air pressure of the dust collection base station 1000, for example, the air pressure near the fixing member 3112 of the dust collection base station 1000 meets the preset condition, the fixing member 3112 can release the fixing of the first cover 12. After the first cover 12 is opened, the negative pressure in the dust collection base station 1000 forms a suction force to suck the foreign matters collected in the body 3111 of the dust collection chamber 311 into the dust collection base station 1000, thereby completing the removal of the foreign matters.

[0193] It should be noted that the negative pressure device 30 in the embodiments of the present application can be used to provide a suction air flow only to the dust collection chamber 311 of the dust collection base station 1000 and the first cover 12 in the open state, or can be used to provide a suction air flow to the surface to be cleaned (for example, the ground) when the vacuum cleaner 310 is performing a cleaning operation. Specifically, when the dust collection base station 1000 is provided with the negative pressure device 30, the negative pressure device 30 can be used to provide a suction air flow only to the dust collection chamber 311 of the dust collection base station 1000 and the first cover 12 in the open state, to reduce the internal air pressure of the dust collection base station 1000 and / or provide an air flow for foreign matter removal. When the negative pressure device 30 is not provided in the dust collection base station 1000, and only the negative pressure device 30 is provided in the vacuum cleaner 310, the negative pressure device 30 can be used to provide a suction air flow not only to the dust collection chamber 311 of the dust collection base station 1000 and the first cover 12 in the open state, but also to the surface to be cleaned through air path switching.

[0194] The cleaning device provided by the embodiments of the present application has the following advantages. On the one hand, through the linkage of the negative pressure device 30 and the fixing member 3112, the first cover 12 is unlocked only when the internal air pressure of the dust collection base station 1000 meets the preset condition, thereby avoiding foreign matter residues caused by insufficient air pressure or excessive dust discharge impact caused by sudden air pressure rise, and ensuring a stable and orderly dust discharge process. On the other hand, the negative pressure triggering mechanism can achieve automatic opening of the first cover 12 without manual operation of the fixing member 3112, thereby reducing manual intervention, especially adapting to the demand for manual maintenance-free cleaning device in home, office and other scenarios, and reducing the use threshold. On the other hand, the negative pressure environment not only triggers unlocking, but also continuously or intermittently provides suction, thereby promoting the foreign matter in the dust collection chamber 311 to quickly and completely enter the dust collection base station 1000, reducing the adhesion of foreign matter to the inner wall of the body 3111, avoiding foreign matter backflow, and improving the overall cleaning effect and service life of the cleaning device. On the other hand, the negative pressure device 30 can be flexibly arranged in the vacuum cleaner 310 or the dust collection base station 1000, thereby adapting to different product design requirements.

[0195] The cleaning device provided by the embodiments of the present application has the following advantages. On the one hand, the mechanism of opening the first cover 12 triggered by the negative pressure can avoid the opening failure or delay problem caused by component wear and tear or jamming in the traditional mechanical triggering. The negative pressure device 30 can stably control the internal air pressure of the dust collection base station 1000, and the fixing member 3112 can be precisely released only when the air pressure meets the preset condition, thereby ensuring consistent action response when the first cover 12 is opened each time, and avoiding mechanical jamming risk. On the other hand, the negative pressure environment can buffer the impact force when the first cover 12 is opened, thereby avoiding deformation or damage of the cover due to uneven instantaneous force, significantly improving the stability and service life of the opening of the first cover 12, and ensuring long-term reliable operation of the cleaning device.

[0196] As shown in FIGS. 26-31, in some alternative embodiments, when the air pressure difference between the dust collection chamber 311 and the dust collection base station is in the range of 3KPa-25KPa, the fixing member 3112 releases the first cover 12. In this technical solution, triggering the fixing member 3112 to release the first cover 12 when the air pressure difference between the dust collection chamber 311 and the dust collection base station 1000 is limited to 3KPa-25KPa can balance the unlocking reliability and the dust discharge stability. The lower limit of 3KPa can ensure that the fixing member 3112 has sufficient driving force, avoid unlocking failure due to insufficient negative pressure, and ensure that the dust discharge can be successfully started each time; the upper limit of 25KPa can prevent the first cover 12 from being impacted too strongly at the moment of opening, avoid cover deformation or foreign matter splashing, and at the same time reduce the energy consumption of the negative pressure device 30. This range accurately matches the action threshold of the fixing member 3112 and the foreign matter transfer requirement, which not only reduces the residual foreign matter in the dust collection chamber 311 through negative pressure suction, but also ensures the service life of the first cover 12 and the fixing member 3112, and improves the overall operation stability of the cleaning device.

[0197] As shown in FIGS. 26-31, in some alternative embodiments, when the air pressure difference between the dust collection chamber 311 and the dust collection base station is in the range of 3KPa-25KPa, the fixing member 3112 releases the first cover 12.

[0198] In this technical solution, limiting the triggering range of the air pressure difference between the dust collection chamber 311 and the dust collection base station 1000 to 7KPa-25KPa is a more optimal technical solution, and its technical effect is more in line with actual use requirements. From the perspective of unlocking reliability, the lower limit of 7KPa is higher, which can further avoid the problem of unlocking jamming and failure of the fixing member 3112 due to insufficient driving force under low air pressure difference - even if there is slight air pressure fluctuation of the negative pressure device 30, the fixing member 3112 can still obtain stable driving force, achieve accurate unlocking of the first cover 12, and avoid dust discharge interruption due to unlocking failure. From the perspective of dust discharge stability and component protection, the upper limit of 25KPa can effectively control the negative pressure intensity, prevent the first cover 12 from being impacted too strongly at the moment of opening due to excessive air pressure difference, avoid cover deformation and damage to the sealing structure, and at the same time reduce the splashing or adhesion of foreign matter to the inner wall of the dust collection base station during the dust discharge process, ensuring the order of the dust discharge process. In addition, this range can balance the negative pressure suction and energy consumption: negative pressure above 7KPa can provide sufficient suction to completely remove residual foreign matter (especially sticky or small debris) in the dust collection chamber 311, and negative pressure below 25KPa can avoid excessive work of the negative pressure device 30, reducing energy consumption, taking into account cleaning effect and use cost, and significantly improving the overall performance of the cleaning device.

[0199] In some alternative embodiments, the cleaning device further comprises an air pressure sensor arranged in the dust collection base station 1000, and the fixing member 3112 is arranged to release the first cover 12 when the air pressure in the dust collection base station 1000 is less than 95KPa.

[0200] In the technical solution, by setting the air pressure sensor in the dust collection base station 1000, and designing the fixed member 3112 to release the first cover body 12 when the air pressure in the dust collection base station 1000 is less than 95 KPa, the air pressure detection and unlocking action can be accurately linked. The air pressure sensor can monitor the internal air pressure of the dust collection base station in real time and directly, avoiding errors that may occur due to indirect air pressure difference estimation, ensuring that unlocking is triggered only when the air pressure meets the standard, and preventing the first cover body 12 from opening too early or too late due to air pressure misjudgment. The threshold of 95 KPa ensures that sufficient negative pressure is formed in the dust collection base station to generate suction force (to remove debris in the dust collection chamber 311), and avoids excessive negative pressure that may cause high energy consumption or excessive stress on components, balancing the unlocking reliability, debris removal effect, and equipment operation safety, and improving the overall control accuracy and stability of the cleaning device.

[0201] In some optional embodiments, the body 3111 is columnar, and the diameter of the body 3111 is greater than or equal to 7 cm.

[0202] In the technical solution, the body 3111 is columnar and has a diameter greater than or equal to 7 cm, which provides key support for improving the dust removal effect from the structure. The columnar shape makes the internal space of the dust collection chamber 311 regular, and the debris can smoothly slide along the column wall, avoiding the accumulation of debris in the dead corners formed by irregular structures. The design of a diameter greater than or equal to 7 cm expands the internal passage cross section, which on the one hand reduces the risk of congestion when the debris is discharged, especially for larger particles, and reduces the probability of being stuck in the passage, and on the other hand, in cooperation with the negative pressure suction, a more stable airflow field can be formed, ensuring that the negative pressure can uniformly act on the entire dust collection space, driving the residual debris to be efficiently discharged, reducing the problem of local airflow turbulence and suction decay caused by narrow passages, and significantly improving the thoroughness and efficiency of dust removal.

[0203] In some optional embodiments, a dust collection cavity is formed in the body 3111, and the dust collection cavity penetrates the body 3111 along the height direction of the body.

[0204] In the technical solution, the dust collection cavity is arranged along the height direction of the body 3111, which can form a longitudinal passage without obstruction, laying a key structural foundation for improving the dust removal effect. The through design makes the internal space of the dust collection cavity free of horizontal obstruction, and the debris can directly fall along the height direction, avoiding the accumulation of debris in the dead corners formed by the segmentation of the cavity and the existence of obstructions in the non-through structure (such as the residual problems at the junction of the cavity bottom and the side wall, and the middle partition area). In cooperation with the negative pressure suction, the unobstructed through passage can make the airflow more smoothly penetrate the dust collection cavity, forming a stable longitudinal airflow field that can directly drive the debris in all areas of the cavity to move quickly towards the dust discharge port, significantly reducing the situation that the debris is attached to the cavity wall or stuck in the obstructed structure, and significantly improving the thoroughness and efficiency of dust removal, ensuring that there is no residual in the dust collection cavity after each dust removal.

[0205] In some optional embodiments, the fixing member 3112 is arranged outside the body 3111.

[0206] In this technical solution, the fixing member 3112 is arranged outside the body 3111, which can completely avoid occupying the internal space of the dust collection cavity and fundamentally eliminate the obstruction of the fixing member to the passage of the dust collection cavity. Compared with the built-in design, the outside arrangement keeps the internal passage of the dust collection cavity complete and unobstructed, and when the foreign matter moves along the passage under the action of negative pressure, it will not be stuck or accumulated due to the obstruction of the fixing member, and especially the problem of small or long foreign matter being stuck in the gap between the member and the cavity wall can be avoided. At the same time, the unobstructed passage makes the airflow smoother, and the negative pressure suction force can uniformly act on the whole dust collection cavity, further improving the foreign matter discharge efficiency and ensuring the smoothness of the dust discharge process without residue.

[0207] In the present application, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0208] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0209] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0210] The above is only the preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A dust collection base station, comprising a base station body (110) and an uncapping structure (120), an end of the base station body (110) is formed with a receiving groove (110a) for accommodating an end of a dust cup (210), the uncapping structure (120) is configured to trigger an unlocking of a dust discharging cover (212) of the dust cup (210) if an air pressure in the receiving groove (110a) is within a preset negative pressure range.

2. The dust collection base station of claim 1, wherein, A side wall of the receiving groove (110a) has a first through hole (110b), the uncapping structure (120) is located at the side wall of the receiving groove (110a), and the uncapping structure (120) comprises a trigger rod (121) and a driving mechanism. The trigger rod (121) is inserted in the first through hole (110b) and is configured to move into the receiving groove (110a) along the first through hole (110b) under the action of the driving mechanism to trigger the opening of the dust discharging cover (212) of the dust cup (210).

3. The dust collection base station of claim 2, wherein, The driving mechanism comprises a fixed support (122) and a first elastic member (123), the fixed support (122) is in sealing engagement with the base station body (110), the first elastic member (123) connects the trigger rod (121) and the fixed support (122), and the fixed support (122), the first elastic member (123) and the base station body (110) enclose an air cavity (120a) which is in communication with the receiving groove (110a).

4. The dust collection base station of claim 3, wherein, The first elastic member (123) is annular, an outer edge of the first elastic member (123) is connected to the fixed support (122), and an inner edge of the first elastic member (123) is connected to the trigger rod (121). The first elastic member (123) comprises an annular connecting portion (1231) and an annular elastic portion (1232), the annular connecting portion (1231) is connected to the fixed support (122), an outer edge of the annular elastic portion (1232) is connected to the annular connecting portion (1231), an inner edge of the annular elastic portion (1232) is connected to the trigger rod (121), and the annular elastic portion (1232) is arched away from the base station body (110), when a negative pressure of the receiving groove (110a) meets a preset condition, the annular elastic portion (1232) is deformed towards the base station body (110) to drive the trigger rod (121) to move, so as to trigger the opening of the dust discharging cover (212) of the dust cup (210).

5. The dust collection base station of claim 4, wherein, The annular connecting portion (1231) and the annular elastic portion (1232) have an annular groove (123a) at a connection therebetween, and the annular groove (123a) is located at a side of the first elastic member (123) away from the base station body (110) to increase a deformation amplitude of the first elastic member (123).

6. The dust collection base station of any of claims 3-5, wherein, The side wall of the accommodating groove (110a) further has a dust falling port (110c) located on the side of the first through hole (110b) away from the opening of the accommodating groove (110a), and the dust falling port (110c) communicates with the air cavity (120a); The fixed support (122) has a protrusion (1221) on the side close to the base station body (110), and the protrusion (1221) is at least partially located in the dust falling port (110c), and the side of the protrusion (1221) close to the trigger rod (121) is a bevel (1221a).

7. The dust collection base station of claim 2, wherein, The driving mechanism comprises an air pressure sensor (125) and an electric push rod (126), the air pressure sensor (125) is at least partially located in the accommodating groove (110a) and used for detecting the air pressure in the accommodating groove (110a), and the electric push rod (126) is electrically connected with the air pressure sensor (125) and further connected with the trigger rod (121).

8. The dust collection base station of any one of claims 2-5, 7, wherein, The cover opening structure (120) further comprises a second elastic member (127) sleeved on the trigger rod (121) and abutting against the trigger rod (121) and the base station body (110) respectively to provide an acting force to the trigger rod (121) to promote the movement of the trigger rod (121) out of the accommodating groove (110a).

9. The dust collection base station of any one of claims 1-5, 7, wherein, The end of the base station body (110) further forms an air suction port (110d) communicating with the accommodating groove (110a), and the air suction port (110d) is used for being connected with a dust collector (2000); The base station body (110) has a dust collecting bag mounting cavity (110f) inside, and the top end of the dust collecting bag mounting cavity (110f) communicates with the accommodating groove (110a); The base station body (110) has an air suction channel (110e) outside, the air suction channel (110e) communicates with the air suction port (110d), the air suction channel (110e) extends to the bottom end of the dust collecting bag mounting cavity (110f) and communicates with the bottom end of the dust collecting bag mounting cavity (110f).

10. The dust collecting base station according to any one of claims 1-5 and 7, wherein, When the air pressure difference between the accommodating groove (110a) and the dust cup (210) ranges from 7 KPa to 25 KPa, the dust discharging cover (212) is unlocked.

11. A dust cup of a dust cleaner, adapted for use with a dust collection base station (1000) as claimed in any one of claims 1 to 10, wherein, The dust cup (210) comprises a cup body (211), a dust discharging cover (212) and a locking member (213), the dust discharging cover (212) is connected with the cup body (211), the locking member (213) is connected with the cup body (211), the locking member (213) is used for locking the dust discharging cover (212), and the dust discharging cover (212) is unlocked under the triggering of the cover opening structure (120).

12. The dust cup of claim 11, wherein, The locking piece (213) comprises a lock catch (2131), the lock catch (2131) comprises a rotating connection part (21311), a pressing unlocking part (21312) and a hook part (21313), the rotating connection part (21311) is connected between the pressing unlocking part (21312) and the hook part (21313), the rotating connection part (21311) is rotationally connected with the cup body (211), and the hook part (21313) is located at a cup opening of the cup body (211) and is used for clamping with an edge of the dust discharging cover (212).

13. The dust cup of claim 12, wherein, The locking piece (213) further comprises a third elastic piece (2132), the third elastic piece (2132) is located between the cup body (211) and the pressing unlocking part (21312) and is used for providing an action force for urging the pressing unlocking part (21312) to rotate away from the cup body (211).

14. The dust cup of claim 12, wherein, The hook part (21313) comprises a hook main body (21314) and a first wear-resistant block (21315), the first wear-resistant block (21315) is connected with the hook main body (21314), and the first wear-resistant block (21315) is used for contacting the dust discharging cover (212); and / or the dust discharging cover (212) comprises a dust discharging cover main body (2121) and a second wear-resistant block (2122), the second wear-resistant block (2122) is connected with the dust discharging cover main body (2121), and the second wear-resistant block (2122) is used for contacting the hook part (21313).

15. The dust cup of claim 14, wherein, An included angle α between a first locking surface (21313a) of the hook part (21313) and a second locking surface (212a) of the dust discharging cover (212) is 0°-10°, the first locking surface (21313a) is a surface of the hook part (21313) in contact with the dust discharging cover (212), and the second locking surface (212a) is a surface of the dust discharging cover (212) in contact with the hook part (21313).

16. The dust cup of claim 11, wherein, The cup body (211) comprises a main body part (2111) and an air duct part (2112), the air duct part (2112) is connected to an outer side of the main body part (2111), the air duct part (2112) is formed with a first air duct (2112a) and a second air duct (2112b), one end of the first air duct (2112a) is in communication with an inner side of the main body part (2111), the other end of the first air duct (2112a) is used for being in communication with an air inlet pipe of a dust collector, the second air duct (2112b) extends along a height direction of the main body part (2111), and one end of the second air duct (2112b) close to the dust discharging cover (212) is used for being in communication with the accommodating groove (110a).

17. A cleaning device, wherein, The device includes a dust collection base station (1000) and a vacuum cleaner (2000), wherein the vacuum cleaner (2000) includes a dust cup (210); wherein the dust collection base station (1000) is the dust collection base station (1000) as described in any one of claims 1 to 10, and / or the dust cup (210) is the dust cup (210) as described in any one of claims 11 to 16.

18. A dust collecting method applied to a dust collecting apparatus including a dust cup and a cover body selectively closing the dust cup, wherein, The method includes: generating a negative pressure within a preset range to act on a first device and cause the first device to operate, the first device acting on a second device to release the cover, so that the dust cup changes from a closed state to an open state.

19. The dust collection method according to claim 18, wherein, The first device includes a cover opening structure (120), which generates a negative pressure within a preset range to act on the first device and cause it to operate. The first device acts on the second device to release the cover, causing the dust cup to change from a closed state to an open state. The steps include: A negative pressure within a preset range is generated to act on the entirety or part of the opening structure (120) as described in any one of claims 1 to 10 and cause the opening structure (120) to operate, the opening structure (120) acting on the second device to release the cover, so that the dust cup changes from a closed state to an open state.

20. A cleaning device, wherein, Includes a vacuum cleaner (2000), a dust collection station (1000), and a negative pressure device (30); The vacuum cleaner (2000) includes a dust cup (210) and a first cover (12). The first cover (12) is used to close or open the internal space of the dust cup (210). The dust cup (210) is provided with a latch (2131) for locking the first cover (12). The dust collection base station (1000) includes an unlocking component (22); The negative pressure device (30) is used to generate negative pressure in the dust collection base station (1000) so that the unlocking member (22) acts on the latch (2131) under the action of air pressure difference to unlock the first cover (12).

21. The cleaning device of claim 20, wherein, The dust cup (210) has a dust outlet (101) at its bottom. One end of the first cover (12) is hinged to one side of the bottom of the dust cup (210). The other side of the bottom of the dust cup (210) is rotatably connected to the latch (2131), which is used to lock the other end of the first cover (12). The dust collection base station (1000) includes a dust collection box (21) and the unlocking component (22). The top of the dust collection box (21) has a dust collection port (201) for the bottom of the dust cup (210) to extend into. The side wall of the dust collection box (21) has a slot (202) for the unlocking component (22) to slide and assemble. The negative pressure device (30) is used to generate negative pressure inside the dust collection box (21), which allows the unlocking member (22) to move under the action of air pressure difference, so as to push the latch (2131) to disengage from the first cover (12).

22. The cleaning device of claim 21, wherein, The dust cup (210) is internally formed with a third air duct (113), a second air duct (2112b) and a first air duct (2112a), the dust discharging port (101) and the first air duct (2112a) are both in communication with the third air duct (113), the second air duct (2112b) is isolated from the third air duct (113), and the bottom of the dust cup (210) further has an air inlet (102) in communication with the second air duct (2112b), which is used to be connected with the top of the dust collecting box (21); When the cleaning device performs a dust suction working condition, a first airflow generated by the negative pressure device (30) is transmitted through an air duct comprising the third air duct (113) and the first air duct (2112a); When the cleaning device performs a dust discharging working condition, a second airflow generated by the negative pressure device (30) is transmitted through an air duct comprising the second air duct (2112b).

23. The cleaning device of claim 22, wherein, The top of the dust cup (210) is provided with a second cover body (14), the second cover body (14) has a first opening (103) in communication with the third air duct (113) and a second opening (104) in communication with the second air duct (2112b), and the side of the second cover body (14) away from the dust discharging port (101) is rotationally connected with an air duct conversion piece (15), which is used to selectively open the first opening (103) and the second opening (104).

24. The cleaning device of claim 23, wherein, The air duct conversion piece (15) comprises a first shielding part (151) and a second shielding part (152) connected with each other, the first shielding part (151) and the second shielding part (152) are arranged on the second cover body (14) through a connecting part, the first shielding part (151) and the second shielding part (152) are arranged on both sides of the connecting part, the first shielding part (151) is arranged corresponding to the first opening (103), and the second shielding part (152) is arranged corresponding to the second opening (104).

25. The cleaning device of claim 23, wherein, A push rod (141) is slidably installed in the second air duct (2112b), the top of the dust collecting box (21) further has an air outlet (203) in communication with the second air duct (2112b), and a stand column (23) is arranged at the air outlet (203), one end of the push rod (141) is hingedly connected to the air duct conversion piece (15), and the other end of the push rod (141) is used to abut against the stand column (23); a sleeve ring (142) is installed on the inner wall of the second air duct (2112b), the push rod (141) is sleeved on the sleeve ring (142), and the sleeve ring (142) is used to prevent the push rod (141) from deviating during sliding.

26. The cleaning device of claim 23, wherein, A separator (16) is installed at the first opening (103) on the side of the second cover body (14) facing the dust discharging port (101), and the separator (16) is used to filter the first airflow during the dust suction working condition. The separator (16) comprises a sleeve (161), a cyclone cone (162) and a filter (163), the sleeve (161) is connected with the second cover (14), the cyclone cone (162) is rotationally connected inside the sleeve (161) and points to the dust outlet (201), and the filter (163) is sleeved on the sleeve (161), and the cyclone cone (162) is used for guiding the first airflow flowing from the first air duct (2112a) into the third air duct (113) to be discharged from the first opening (103).

27. The cleaning device of claim 21, wherein, A mounting groove (106) is formed in the sidewall of the dust cup (210) to arrange the lock (2131). And / or, the sidewall of the dust collecting box (21) is connected with a cover (24), the sidewall of the dust collecting box (21) is provided with a socket (202), the cover (24) is provided with a gas permeable hole (204) opposite to the socket (202), the cover (24) forms a containing cavity, the gas permeable hole (204) communicates the containing cavity with the external environment of the dust collecting box (21), and the containing cavity and the dust collecting box (21) generate a gas pressure difference, and the unlocking member (22) penetrates the socket (202) and part of the unlocking member (22) is located in the containing cavity.

28. The cleaning device of claim 27, wherein, The unlocking member (22) comprises a piston rod (221) and a sliding block (222), one end of the piston rod (221) penetrates the socket (202), the other end of the piston rod (221) is connected with the sliding block (222), the sliding block (222) is located inside the cover (24), and the outer periphery of the piston rod (221) is sleeved with a deformation member (223) for applying a force to the sliding block (222) and pointing to the initial position.

29. The cleaning device of any one of claims 20 to 28, wherein, The gas pressure difference ranges from 3KPa to 25KPa. The dust collector (2000) is provided with the negative pressure device (30). Or, the dust collector (2000) and the dust collecting base station (1000) are both provided with the negative pressure device (30).

30. The cleaning device of any one of claims 20 to 28, wherein, The gas pressure difference ranges from 7KPa to 25KPa.

31. The cleaning device of any one of claims 20 to 28, wherein, The dust collecting base station (1000) further comprises a dust collecting bag (1101) and a front shell (26), the dust collecting bag (1101) is located inside the dust collecting box (21), and the front shell (26) is detachably arranged on the sidewall of the dust collecting box (21).

32. A dust collection method, wherein, The method is applied to a dust collecting device comprising a dust cup and a cover selectively closing the dust cup, and the method comprises: generating a negative pressure to act on a first device and drive the first device to act on a second device to release the cover, so that the dust cup changes from a closed state to an open state.

33. The dust collecting method according to claim 32, wherein The dust cup is selectively communicated with a first cavity for dust collecting, the negative pressure device is used to generate a negative pressure in the first cavity, and the first device is driven to move under the action of a gas pressure difference to drive the second device to release the cover.

34. The dust collecting method according to claim 33, wherein The first cavity is externally provided with a second cavity, the first device is at least partially arranged in the second cavity, and the second cavity is communicated with the external environment of the first cavity, so that the first cavity and the second cavity generate the air pressure difference.

35. The dust collecting method according to claim 33, wherein The first device comprises a moving part provided with a deformation part, and the moving of the first device under the action of the air pressure difference to push the second device to release the cover comprises that the deformation part is used to apply a restoring force to the moving part in the opposite direction of the moving direction of the moving part, and the restoring force is less than or equal to the force generated based on the air pressure difference during the moving of the moving part.

36. A cleaning device, wherein, Comprise: A vacuum cleaner (310) comprising a dust collecting chamber (311) for collecting foreign matters; And A dust collecting base station (1000) configured to be detachably connected to the dust collecting chamber (311) to remove the foreign matters collected in the dust collecting chamber; At least one of the vacuum cleaner (310) and the dust collecting base station (1000) is provided with a negative pressure device (30) configured to reduce the internal air pressure of the dust collecting base station (1000); Wherein, the dust collecting chamber (311) comprises: A body (3111); A first cover (12) arranged openably and closably on the body (3111); and A fixing member (3112) arranged to relatively fix the first cover (12) with the body (3111) and release the first cover (12) when the internal air pressure meets a preset condition.

37. The cleaning device of claim 36, wherein, When the size range of the air pressure difference between the dust collecting chamber (311) and the dust collecting base station is 3KPa-25KPa, the fixing member (3112) releases the first cover (12).

38. The cleaning device of claim 36, wherein, When the size range of the air pressure difference between the dust collecting chamber (311) and the dust collecting base station is 7KPa-25KPa, the fixing member (3112) releases the first cover (12).

39. The cleaning device of claim 36, wherein, Further comprise: An air pressure sensor arranged in the dust collecting base station (1000), and the fixing member (3112) is arranged to release the first cover (12) when the internal air pressure of the dust collecting base station (1000) is less than 95KPa.

40. The cleaning device of any one of claims 36 to 39, wherein The body (3111) is columnar, and the diameter of the body (3111) is greater than or equal to 7cm.

41. The cleaning device of any one of claims 33 to 39, wherein The body (3111) is internally formed with a dust collecting cavity, the dust collecting cavity penetrates through the body (3111) along the height direction of the body; and / or The fixing member (3112) is arranged outside the body (3111).

Images