Dust collection base station, dust cup for dust collector, cleaning device, and dust collection method

Abstract

A dust collection base station, a dust cup for a dust collector, a cleaning device and a dust collection method belong to the field of cleaning devices. The dust collection base station includes a base station body and a cover opening structure, where an end of the base station body is provided with an accommodating groove; the cover opening structure is located on a side wall of the accommodating groove; and the cover opening structure is configured to trigger unlocking of a dust discharge cover of a dust cup when an air pressure in the accommodating groove is within a preset negative pressure range. During unlocking, since the air pressure in the accommodating groove is within the preset negative pressure range, the air pressure difference between the dust cup and the accommodating groove is within an acceptable range.

Description

CROSS-REFERENCE TO THE RELATED APPLICATIONS

[0001] This application is the continuation application of International Application No. PCT / CN2025 / 132925, filed on Nov. 6, 2025, which is based upon and claims priority to Chinese Patent Application No. 202411253258.2, filed on Sep. 6, 2024; Chinese Patent Application No. 202411295821.2, filed on Sep. 14, 2024; Chinese Patent Application No. 202411398263.2, filed on Sep. 30, 2024; and Chinese Patent Application No. 202510422754.4, filed on Sep. 30, 2024; the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure relates to the field of cleaning devices, and in particular to a dust collection base station, a dust cup for a dust collector, a cleaning device, and a dust collection method.BACKGROUND

[0003] A cleaning device, typically including a dust collector and a dust collection base station, is a commonly used household appliance for removing dust, dirt, and other debris from the surfaces of objects such as floors, carpets, and furniture.

[0004] The dust cup of the dust collector can hold a certain amount of debris. When the dust collector is placed on the dust collection base station, the dust discharge cover located at the bottom of the dust cup can be opened, allowing the debris accumulated in the dust cup to fall into the dust collection base station.

[0005] However, when the dust collector is placed on the dust collection base station, if the dust discharge cover is opened at an inaccurate time, the normal operation of the cleaning device may be adversely affected.SUMMARY

[0006] The “CONTENT OF THE APPLICATION” section introduces a series of simplified concepts, which will be further elaborated in the “SPECIFIC IMPLEMENTATIONS” section. The “CONTENT OF THE APPLICATION” section of the present disclosure is not intended to limit the key and necessary technical features of the claimed technical solution or define the scope of protection of the claimed technical solution.

[0007] In view of this, a first aspect of an embodiment of the present disclosure proposes a dust collection base station, including: a base station body and a cover opening structure, where an end of the base station body is provided with an accommodating groove; the accommodating groove is configured to accommodate an end of a dust cup; and the cover opening structure is configured to trigger unlocking of a dust discharge cover of the dust cup when an air pressure in the accommodating groove is within a preset negative pressure range.

[0008] A second aspect of the embodiment of the present disclosure proposes a dust cup for a dust collector, applicable to the dust collection base station according to the above technical solution, and including: a cup body, the dust discharge cover and a locking member, where the dust discharge cover is connected to the cup body; the locking member is connected to the cup body; and the locking member is configured to lock the dust discharge cover, and to unlock the dust discharge cover when triggered by the cover opening structure.

[0009] A third aspect of the embodiment of the present disclosure proposes a cleaning device, including: a dust collection base station and a dust collector, where the dust collector includes a dust cup; the dust collection base station is the dust collection base station according to any of the above technical solutions; and / or the dust cup is the dust cup according to any of the above technical solutions.

[0010] A fourth aspect of the embodiment of the present disclosure proposes a dust collection method, applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, where the dust collection method includes: generating a negative pressure within a preset range to act on a first device and cause the first device to act, and causing the first device to act on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0011] A fifth aspect of the embodiment of the present disclosure proposes a cleaning device, including: a dust collector, a dust collection base station, and a negative pressure device, where the dust collector includes a dust cup and a first cover; the first cover is configured to close or open an internal space of the dust cup; the dust cup is provided with a lock catch; the lock catch is configured to lock the first cover; the cleaning device further includes an unlocking member; and the negative pressure device is configured to generate a negative pressure inside the dust collection base station, such that the unlocking member acts on the lock catch under the action of an air pressure difference to unlock the first cover.

[0012] A sixth aspect of the embodiment of the present disclosure proposes a dust collection method, applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, where the dust collection method includes: generating a negative pressure to act on a first device and cause the first device to act, and causing the first device to act on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0013] A seventh aspect of the embodiment of the present disclosure proposes a cleaning device, including: a vacuum cleaner, where the vacuum cleaner includes a dust collection compartment, and the dust collection compartment is configured to collect debris; and a dust collection base station, where the dust collection base station is configured to be detachably connected to the dust collection compartment to remove the debris collected in the dust collection compartment; at least one of the vacuum cleaner and the dust collection base station is provided with a negative pressure device; the negative pressure device is configured to reduce an internal air pressure of the dust collection base station; and the dust collection compartment includes a main body, a first cover connected to the main body for opening the main body or closing the main body, and a fixing member configured to fix the first cover to the main body and release the first cover when the internal air pressure meets a preset condition.

[0014] The above description is merely a summary of the technical solutions of the present disclosure. In order to allow the technical means of the present disclosure to be understood clearly and implemented in accordance with the content of the specification and allow the above and other objectives, features, and advantages of the present disclosure to be obviously and easily understood, specific implementations of the present disclosure are described below.BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the following preferred implementations, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are provided merely to illustrate the preferred implementations, rather than to limit the present disclosure. Throughout the drawings, the same reference numerals represent the same components. In the drawings:

[0016] FIG. 1 is a schematic view of a cleaning device provided by an embodiment of the present disclosure;

[0017] FIG. 2 is a schematic view of a dust cup provided by an embodiment of the present disclosure;

[0018] FIG. 3 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure;

[0019] FIG. 4 is a partial schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0020] FIG. 5 is a schematic view of a cover opening structure provided by an embodiment of the present disclosure;

[0021] FIG. 6 is a cross-sectional view of the cover opening structure provided by an embodiment of the present disclosure;

[0022] FIG. 7 is a partial schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0023] FIG. 8 is a cross-sectional view of the dust collection base station provided by an embodiment of the present disclosure;

[0024] FIG. 9 is a schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0025] FIG. 10 is a schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0026] FIG. 11 is a schematic view of a cup body provided by an embodiment of the present disclosure;

[0027] FIG. 12 is a schematic view of a locking member provided by an embodiment of the present disclosure;

[0028] FIG. 13 is a schematic view of a hook portion and a dust discharge cover provided by an embodiment of the present disclosure in an engaged state;

[0029] FIG. 14 is a schematic view of a dust collector and the dust collection base station in a separated state in an embodiment of the present disclosure;

[0030] FIG. 15 is an exploded view of the dust collector in an embodiment of the present disclosure;

[0031] FIG. 16 is a schematic view of a partial structure shown in FIG. 15;

[0032] FIG. 17 is an exploded view of the dust collection base station in an embodiment of the present disclosure;

[0033] FIG. 18 is an enlarged view of A shown in FIG. 17;

[0034] FIG. 19 is a schematic view of an unlocking member and a sealing cover in an embodiment of the present disclosure;

[0035] FIG. 20 is a schematic view of a dust cup in an embodiment of the present disclosure;

[0036] FIG. 21 is a bottom view of the dust cup in an embodiment of the present disclosure;

[0037] FIG. 22 is a top view of a second cover in an embodiment of the present disclosure;

[0038] FIG. 23 is a top view of a dust collection bin in an embodiment of the present disclosure;

[0039] FIG. 24 is a cross-sectional view of a cleaning device in an embodiment of the present disclosure;

[0040] FIG. 25 is a cross-sectional view of a cleaning device in another embodiment of the present disclosure;

[0041] FIG. 26 is a schematic view of a cleaning device provided by yet another embodiment of the present disclosure;

[0042] FIG. 27 is an exploded view of the cleaning device provided by yet another embodiment of the present disclosure;

[0043] FIG. 28 is an exploded view of the cleaning device provided by yet another embodiment of the present disclosure from another perspective;

[0044] FIG. 29 is a partial enlarged view of A shown in FIG. 28;

[0045] FIG. 30 is a schematic view of a fixing member of the cleaning device provided by yet another embodiment of the present disclosure; and

[0046] FIG. 31 is a schematic view of the cleaning device provided by yet another embodiment of the present disclosure from another perspective.Reference Numerals

[0047] 1000. dust collection base station; 1100. first suction assembly; 1101. dust bag; 100. housing; 110. base station body; 110a. accommodating groove; 110b. through hole; 110c. dust dropping port; 110d. suction port; 110e. suction channel; 110f. dust bag mounting chamber; 120. cover opening structure; 121. trigger rod; 122. fixing bracket; 123. first elastic member; 120a. air chamber; 1211. rod body; 1212. connecting disc; 1221. bump; 1221a. inclined surface; 1231. annular connecting portion; 1232. annular elastic portion; 123a. annular groove; 124. outer cover; 124a. vent 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 body; 2122. second wear-resistant member; 2131. lock catch; 21311. rotatable connecting portion; 21312. pressing unlocking portion; 21313. hook portion; 2132. third elastic member; 21314. hook body; 21315. first wear-resistant member; and 21313a. first locking surface;

[0048] 113. third air duct; 12. first cover; 14. second cover; 141. push rod; 142. bushing; 15. air duct diverter; 151. first blocking portion; 152. second blocking portion; 16. separator; 161. sleeve; 162. cyclone cone; 163. filter element; 17. handle; 18. suction hose; 19. suction head; 101. dust discharge port; 102. air inlet; 103. first opening; 104. second opening; 105. dust outlet; 106. mounting groove; and 107. air outlet hole;

[0049] 21. dust collection bin; 2101. dust discharge channel; 22. unlocking member; 221. piston rod; 222. slider; 223. deformable member; 23. upright post; 24. sealing cover; 26. front housing; 27. rear housing; 201. dust collection port; 202. socket; 203. air outlet; 204. vent hole; 205. access opening; and 206. third opening;

[0050] 310. vacuum cleaner; 311. dust collection compartment; 3111. body; and 3112. fixing member; and

[0051] 30. negative pressure device.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] In the following description, numerous specific details are provided to offer a more thorough understanding of the technical solution disclosed in the present disclosure. However, it will be apparent to those skilled in the art that the technical solution of the present disclosure may be practiced without one or more of these specific details.

[0053] It should be noted that the terminology used herein is merely for describing specific embodiments and is not intended to limit the exemplary embodiments of the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular form is also intended to include the plural form. Furthermore, it is to be understood that when the terms “comprises” and / or “includes” are used in this specification, they specify 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.

[0054] Exemplary embodiments according to the present disclosure will now be described in greater detail with reference to the drawings. Nevertheless, these exemplary embodiments may be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. It is to be understood that these embodiments are provided to render the present disclosure thorough and complete, and to fully convey the concept of the exemplary embodiments to those of ordinary skill in the art.

[0055] FIG. 1 is a schematic view of a cleaning device provided by an embodiment of the present disclosure. As shown in FIG. 1, the cleaning device includes dust collection base station 1000 and dust collector 2000. The dust collector 2000 is detachably connected to the dust collection base station 1000. When it is necessary to use the dust collector 2000 for cleaning, the dust collector 2000 is detached from the dust collection base station 1000. After use, the dust collector 2000 is placed on the dust collection base station 1000, and the dust collection base station 1000 is used to collect debris stored in the dust collector 2000.

[0056] As shown in FIG. 1, the dust collector 2000 includes dust cup 210. FIG. 2 is a schematic view of a dust cup provided by an embodiment of the present disclosure. As shown in FIG. 2, the dust cup 210 includes cup body 211, dust discharge cover 212, and locking member 213. The dust discharge cover 212 is connected to the cup body 211, for example, via fixed connection, rotational connection, snap-fit connection, rotary connection, hinged connection, magnetic connection, or other methods. The locking member 213 is connected to the cup body 211, and the locking member 213 is configured to lock the dust discharge cover 212, and to unlock the dust discharge cover 212 when triggered by cover opening structure 120 (as shown in FIG. 3).

[0057] The dust discharge cover 212 can be connected to a bottom of the cup body 211 through rotating portion 2110. Exemplarily, the rotating portion 2110 can be a hinge, a rotating shaft, a torsion spring, etc.

[0058] The dust cup 210 is configured to store debris sucked in during operation of the dust collector 2000. When the dust collector 2000 is placed on the dust collection base station 1000, a bottom of the dust cup 210 is inserted into the dust collection base station 1000. The dust collection base station 1000 is capable of collecting the debris in the dust cup 210, and the debris in the dust cup 210 can fall into the dust collection base station 1000 by opening the dust discharge cover 212 of the dust cup 210.

[0059] As shown in FIGS. 2 to 6 and FIG. 12, the cover opening structure 120 includes trigger rod 121 and a driving mechanism. The trigger rod 121 is configured to move under the action of the driving mechanism to trigger the dust discharge cover 212 of the dust cup 210 to be opened. When the dust discharge cover 212 is in a closed state, it can be locked by the locking member 213. After the locking member 213 is triggered, it can release the dust discharge cover 212 to unlock the dust discharge cover 212. When the dust cup 210 is placed on base station body 110, the driving mechanism drives the trigger rod 121 to move, and the trigger rod 121 can move into accommodating groove 110a, contact the locking member 213, and trigger the locking member 213 to release the dust discharge cover 212, thereby unlocking the dust discharge cover 212.

[0060] FIG. 3 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 3, the dust collection base station includes the base station body 110 and the cover opening structure 120. The accommodating groove 110a is formed at an end of the base station body 110, and the accommodating groove 110a is configured to accommodate an end of the dust cup 210. The cover opening structure 120 is configured to trigger the unlocking of the dust discharge cover 212 of the dust cup 210 when an air pressure in the accommodating groove 110a is within a preset negative pressure range.

[0061] In the embodiment of the present disclosure, the preset negative pressure range may be a pressure range representing absolute pressure. For example, the preset negative pressure range may be 80 kPa to 100 kPa. It may also be a pressure range representing relative pressure. For example, the preset negative pressure range may be −20 kPa to 0. That is, the preset negative pressure range is from a pressure 20 kPa lower than a current actual ambient air pressure to the current actual ambient air pressure. For another example, the preset negative pressure range may be −20 kPa to −1 kPa. That is, the preset negative pressure range is from a pressure 20 kPa lower than the actual ambient air pressure in an external environment where the current dust collection base station 1000 is located to a pressure 1 kPa lower than the current actual ambient air pressure. The upper and lower limits of the preset negative pressure range can be set according to specific usage scenarios and requirements.

[0062] By forming the accommodating groove 110a at the end of the base station body 110, when the dust collector 2000 is placed on the dust collection base station 1000, the end of the dust cup 210 of the dust collector 2000 can be inserted into the accommodating groove 110a. By configuring the cover opening structure 120, the cover opening structure 120 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. During unlocking, since the air pressure in the accommodating groove 110a is within the preset negative pressure range, the air pressure difference between the dust cup 210 and the accommodating groove 110a is within an acceptable range. In addition, 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. Thus, 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. This design reduces or even avoids the residue of debris in the dust cup, and avoids impairing the normal operation of the cleaning device due to excessive impact generated when the debris enters the accommodating groove 110a.

[0063] Long-term research has found that when the pressure difference between the air pressure in the accommodating groove 110a and the air pressure in the dust cup 210 when the dust discharge cover 212 is in the closed state is relatively large, suddenly releasing the dust discharge cover 212 can achieve a better effect in collecting the debris stored in the dust cup 210 by using the dust collection base station 1000, including the clearing rate of debris, the clearing effect of special debris (such as hair, wet fine dust), and the cleaning effect of the dust cup 210 in extreme cases (such as a lot of debris in the dust cup 210 or compressed and adhered debris in the dust cup 210) is improved.

[0064] Specifically, compared with the operation of providing suction air flow to the dust cup 210 to discharge dust after the dust discharge cover 212 is released, the embodiment of the present disclosure can first provide suction air flow into the accommodating groove 110a. When the air pressure in the accommodating groove 110a is 3 kPa to 25 kPa lower than the air pressure in the dust cup 210, that is, when the above preset negative pressure range is −3 kPa to −25 kPa, the dust collection base station 1000 has a better effect in clearing the debris collected in the dust cup 210. Furthermore, when the air pressure in the accommodating groove 110a is 7 kPa to 25 kPa lower than the air pressure in the dust cup 210, that is, when the above preset negative pressure range is −7 kPa to −25 kPa, the dust collection base station 1000 has a significantly improved cleaning effect on the debris collected in the dust cup 210. Especially when dealing with special debris and when the debris is fully accumulated, the dust collection base station 1000 can still effectively clear the debris collected in the dust cup 210.

[0065] As shown in FIG. 3, the dust collection base station may further include housing 100, and the housing 100 is connected outside the base station body 110. The housing 100 and the base station body 110 may be detachably connected to facilitate clearing the debris collected by the base station body 110.

[0066] FIG. 4 is a partial schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 4, a side wall of the accommodating groove 110a is provided with through hole 110b. The cover opening structure 120 is located at the side wall of the accommodating groove 110a, and the cover opening structure 120 includes the trigger rod 121 and the driving mechanism.

[0067] The trigger rod 121 is inserted into the through hole 110b. The trigger rod 121 is configured to move into the accommodating groove 110a along the through hole 110b under the action of the driving mechanism to trigger the dust discharge cover 212 of the dust cup 210 to be opened.

[0068] When the dust discharge cover 212 is in the closed state, it is locked by the locking member 213. After the locking member 213 is triggered, it can release the dust discharge cover 212 to unlock the dust discharge cover 212. When the dust cup 210 is placed on the base station body 110, the locking member 213 of the dust cup 210 is located in the accommodating groove 110a and is directly opposite to the trigger rod 121. In this example, the driving mechanism drives the trigger rod 121 to move, such that the trigger rod 121 moves into the accommodating groove 110a, contacts the locking member 213, and triggers the locking member 213 to release the dust discharge cover 212, thereby unlocking the dust discharge cover 212.

[0069] Before the driving mechanism drives the trigger rod 121 to move into the accommodating groove 110a, an end of the trigger rod 121 adjacent to an inner side of the accommodating groove 110a may be flush with an inner wall of the accommodating groove 110a or located in the through hole 110b, that is, not protruding out of the through hole 110b. This can prevent the trigger rod 121 from affecting the placement of a lower end of the dust cup 210 into the accommodating groove 110a before unlocking.

[0070] FIG. 5 is a schematic view of a cover opening structure provided by an embodiment of the present disclosure. As shown in FIG. 5, in the cover opening structure, the driving mechanism includes fixing bracket 122 and first elastic member 123. The fixing bracket 122 is hermetically engaged with an outer side wall of the base station body 110, and the first elastic member 123 connects the trigger rod 121 to the fixing bracket 122. The fixing bracket 122, the first elastic member 123 and the base station body 110 form air chamber 120a, and the air chamber 120a communicates with the accommodating groove 110a.

[0071] Since the air chamber 120a communicates with the accommodating groove 110a, the air pressure in the air chamber 120a is the same as the air pressure in the accommodating groove 110a. After the air pressure in the accommodating groove 110a drops, there is an air pressure difference between the interior and exterior of the air chamber 120a, and the force exerted by the air pressure difference between the interior and exterior of the air chamber 120a acts on the first elastic member 123. When the air pressure in the accommodating groove 110a drops to a certain value, for example, drops to the preset negative pressure range, the force exerted by the air pressure difference between the interior and exterior of the air chamber 120a exceeds the elastic force of the first elastic member 123. This exceeding is sufficient to deform the first elastic member 123 toward an inner side of the air chamber 120a, thereby driving the trigger rod 121 to move. After the air pressure in the air chamber 120a is restored, the trigger rod 121 can be reset under the elastic force of the first elastic member 123. Since no equipment such as an electric motor is needed to provide power, no additional energy consumption is required.

[0072] The forces affecting the movement of the trigger rod 121 here may mainly include the elastic force of the first elastic member 123 and the force acting on the first elastic member 123 and generated by the air pressure difference between the interior and exterior of the air chamber 120a. The air pressure outside the air chamber 120a may refer to the air pressure on a side of the fixing bracket 122 away from the outer side wall of the base station body 110, for example, the air pressure in the environment. The elastic force of the first elastic member 123 is adjustable through the first elastic member 123, for example, through the material, shape, size, etc. of the first elastic member 123, such that the elastic force generated by the first elastic member 123 is determined. The force exerted by the air pressure difference is also adjustable, for example, through the air pressure in the accommodating groove 110a, the area of the air acting on the inner side of the first elastic member 123, the area of the air acting on an outer side of the first elastic member 123, etc., such that the force exerted by the air pressure difference is also determined. It can be seen that by adjusting the elastic force of the first elastic member 123, the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range.

[0073] As an example, the first elastic member 123 may be a rubber member.

[0074] FIG. 6 is a cross-sectional view of a cover opening structure provided by an embodiment of the present disclosure. As shown in FIG. 6, the first elastic member 123 is annular. An outer edge of the first elastic member 123 is connected to the fixing bracket 122, and an inner edge of the first elastic member 123 is connected to the trigger rod 121.

[0075] When the annular first elastic member 123 drives the trigger rod 121 to move, the forces exerted by each part of the first elastic member 123 on the trigger rod 121 are symmetrical. This makes the direction of the force exerted by the first elastic member 123 on the trigger rod 121 more stable, always along or approximately along the length direction of the trigger rod 121, thereby making the movement of the trigger rod 121 more stable.

[0076] As an example, the trigger rod 121 includes rod body 1211 and connecting disc 1212. One side of the connecting disc 1212 is concave, and one end of the rod body 1211 is connected to the concave side of the connecting disc 1212. An edge of the connecting disc 1212 is connected to the inner edge of the first elastic member 123.

[0077] As shown in FIG. 6, the first elastic member 123 includes annular connecting portion 1231 and annular elastic portion 1232. The annular connecting portion 1231 is connected to the fixing bracket 122, and 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.

[0078] The outward arching of the annular elastic portion 1232 helps the annular elastic portion 1232 maintain its elasticity. During the gradual increase of the negative pressure in the air chamber 120a (that is, the gradual decrease of the pressure drop), the outwardly arched annular elastic portion 1232 is more likely to maintain its shape unchanged. When the negative pressure increases beyond a certain critical value, it will suddenly deform inward, driving the trigger rod 121 to move, such that the trigger rod 121 can generate sufficient impact force to push the locking member 213.

[0079] As shown in FIG. 6, a joint between the annular connecting portion 1231 and the annular elastic portion 1232 forms annular groove 123a, and the annular groove 123a is located on a side of the first elastic member 123 away from the base station body 110.

[0080] When the first elastic member 123 is deformed, two sides of the annular groove 123a can separate relative to each other, allowing the first elastic member 123 to generate a large deformation and thereby increasing the stroke of the trigger rod 121.

[0081] In some optional implementations, as shown in FIG. 4, the side wall of the accommodating groove 110a is further provided with dust dropping port 110c. The dust dropping port 110c is located on a side of the through hole 110b away from an opening of the accommodating groove 110a, and the dust dropping port 110c communicates with the air chamber 120a.

[0082] In the above implementation, by configuring the dust dropping port 110c, the debris (such as dust) in the air chamber 120a can pass through the dust dropping port 110c, thereby avoiding the accumulation of debris in the air chamber 120a, and further ensuring the normal movement of the driving structure, such that the dust discharge cover 212 can be smoothly unlocked to realize self-cleaning and dust collection.

[0083] In some optional implementations, as shown in FIG. 5, a side of the fixing bracket 122 adjacent to the base station body 110 is provided with bump 1221, and the bump 1221 is at least partially located in the dust dropping port 110c. A side of the bump 1221 adjacent to the trigger rod 121 forms inclined surface 1221a.

[0084] The dust dropping port 110c can play a role in communicating the air chamber 120a with the accommodating groove 110a. In addition, during the use of the dust collection base station 1000, some dust and other debris may enter the air chamber 120a, and the accumulation of the debris in the air chamber 120a may affect the normal movement of the driving mechanism. By configuring the bump 1221, the debris in the air chamber 120a can fall into the accommodating groove 110a via the inclined surface 1221a of the bump 1221.

[0085] As shown in FIG. 5, the driving mechanism further includes outer cover 124, and the outer cover 124 covers the fixing bracket 122 externally. The outer cover 124 is connected to the base station body 110, and the outer cover 124 is provided with vent hole 124a.

[0086] A chamber is formed between the outer cover 124 and the fixing bracket 122, and the chamber is separated from the air chamber 120a. The chamber communicates with the external environment through the vent hole 124a, such that the air pressure in the chamber is the same as the ambient air pressure. The outer cover 124 can provide protection, especially to protect the first elastic member 123, avoiding damage to the first elastic member 123, which leads to communication between the chamber formed between the outer cover 124 and the fixing bracket 122 and the air chamber 120a.

[0087] In some examples, as shown in FIG. 6, the cover opening structure 120 further includes second elastic member 127, and the second elastic member 127 is sleeved outside the trigger rod 121. The second elastic member 127 respectively abuts against the trigger rod 121 and the base station body 110 to exert a force on the trigger rod 121 for causing the trigger rod 121 to move out of the accommodating groove 110a.

[0088] Exemplarily, the second elastic member 127 may be a spring.

[0089] After the trigger rod 121 triggers the unlocking of the dust discharge cover 212, the air pressure in the accommodating groove 110a begins to return to the ambient air pressure. When the air pressure inside and outside the air chamber 120a is the same, the trigger rod 121 can be reset under the elastic forces of the first elastic member 123 and the second elastic member 127.

[0090] Since the elastic force generated by the second elastic member 127 hinders the movement of the trigger rod 121 into the accommodating groove 110a, the elastic force of the second elastic member 127 also affects the timing when the cover opening structure 120 triggers the unlocking of the dust discharge cover 212. Under the condition that the driving mechanism remains unchanged, a greater elastic force of the second elastic member 127 indicates a lower air pressure in the accommodating groove 110a when the cover opening structure 120 triggers the unlocking of the dust discharge cover 212. In contrast, a smaller elastic force of the second elastic member 127 indicates a higher air pressure in the accommodating groove 110a when the cover opening structure 120 triggers the unlocking of the dust discharge cover 212. As mentioned earlier, by adjusting the elastic force of the first elastic member 123, the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range. However, limited by some factors, such as the elasticity of the material itself, the adjustable range of the elastic force of the first elastic member 123 is limited, which may not be sufficient to meet the requirement that the dust discharge cover 212 is unlocked only when the pressure in the accommodating groove 110a reaches the preset negative pressure range. By further configuring the second elastic member 127, the elastic force of one or both of the first elastic member 123 and the second elastic member 127 is adjustable, such that the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range.

[0091] FIG. 7 is a partial schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 7, in other possible implementations, the driving mechanism may also include air pressure sensor 125 and electric push rod 126. The air pressure sensor 125 is at least partially located in the accommodating groove 110a, and the air pressure sensor 125 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 the electric push rod 126 is also connected to the trigger rod 121.

[0092] The air pressure sensor 125 can directly detect the air pressure in the accommodating groove 110a. When the air pressure sensor 125 detects that the air pressure in the accommodating groove 110a is within the preset negative pressure range, the electric push rod 126 drives the trigger rod 121 to move, thereby triggering the unlocking of the dust discharge cover 212.

[0093] FIG. 8 is a cross-sectional view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 8, the dust collection base station further includes first suction assembly 1100, and the first suction assembly 1100 communicates with the accommodating groove 110a.

[0094] The first suction assembly 1100 is configured to suck in air from the accommodating groove 110a to reduce the air pressure in the accommodating groove 110a, such that the air pressure in the accommodating groove 110a drops to the preset negative pressure range, thereby triggering the action of the cover opening structure 120 to unlock the dust discharge cover 212.

[0095] Exemplarily, the first suction assembly 1100 may include a vacuum pump.

[0096] In some examples, the first suction assembly 1100 may be located in the base station body 110.

[0097] In other possible implementations, the first suction assembly 1100 may also be located outside the base station body 110, connected to the base station body 110 through a duct, and communicate with the accommodating groove 110a.

[0098] FIG. 9 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 9, in the dust collection base station, suction port 110d is further formed at the end of the base station body 110. The suction port 110d communicates with the accommodating groove 110a, and the suction port 110d is configured to be connected to the dust collector 2000.

[0099] When the dust collector 2000 is placed on the base station body 110, the suction port 110d communicates with the dust collector 2000, and the air in the accommodating groove 110a is sucked in by using the suction function of the dust collector 2000, such that the air pressure in the accommodating groove 110a is reduced. Directly using the suction capacity of the dust collector 2000 to reduce the air pressure in the accommodating groove 110a eliminates the need for an additional device for suction, thereby reducing the cost of the dust collection base station 1000.

[0100] FIG. 10 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 10, the base station body 110 is internally provided with dust bag mounting chamber 110f. A top end of the dust bag mounting chamber 110f communicates with the accommodating groove 110a. Dust bag 1101 is disposed in the dust bag mounting chamber 110f. During dust collection, after the dust discharge cover 212 is opened, the debris in the dust cup 210 falls into the dust bag 1101 through the accommodating groove 110a.

[0101] As shown in FIG. 9, suction channel 110e is formed on an outer side of the base station body 110, and the suction channel 110e communicates with the suction port 110d. The suction channel 110e extends to a bottom end of the dust bag mounting chamber 110f, and the suction channel 110e communicates with the bottom end of the dust bag mounting chamber 110f. The air flow direction during suction is schematically shown by arrows in FIG. 9.

[0102] Since the suction channel 110e communicates with the bottom end of the dust bag mounting chamber 110f, during the suction process, inside the base station body 110, the air flow moves from the accommodating groove 110a to the top end of the dust bag mounting chamber 110f, and then to the bottom end of the dust bag mounting chamber 110f. That is, the air flow direction is from top to bottom. Such an air flow direction helps the dust bag 1101 expand, facilitating the entry of the debris from the dust cup 210 into the dust bag 1101.

[0103] In addition, an opening of the dust bag 1101 fits closely against an inner wall of the dust bag mounting chamber 110f. This is to make the debris enter the dust bag 1101 as much as possible, and avoid the debris falling into the bottom end of the dust bag mounting chamber 110f from a gap between the dust bag 1101 and the inner wall of the dust bag mounting chamber 110f. Communicating the suction channel 110e with the bottom end of the dust bag mounting chamber 110f can prevent debris from being sucked into the suction channel 110e.

[0104] FIG. 11 is a schematic view of a cup body provided by an embodiment of the present disclosure. As shown in FIG. 11, the cup body 211 includes main body portion 2111 and air duct portion 2112, and the air duct portion 2112 is connected to an outer side of the main body portion 2111. The air duct portion 2112 includes first air duct 2112a and second air duct 2112b. One end of the first air duct 2112a communicates with an inner side of the main body portion 2111, and the other end of the first air duct 2112a is configured to communicate with an air inlet duct of the dust collector. The second air duct 2112b extends along a height direction of the main body portion 2111. One end of the second air duct 2112b adjacent to the dust discharge cover 212 is configured to communicate with the accommodating groove 110a, and the other end of the second air duct 2112b away from the dust discharge cover 212 is configured to communicate with the second suction assembly of the dust collector.

[0105] The first air duct 2112a admits air in the cleaning operation of the dust collector 2000 to suck debris into the dust cup 210 of the dust collector 2000, while the second air duct 2112b does not participate in the operation. During dust collection, the bottom of the dust cup 210 is placed in the accommodating groove 110a, and a suction assembly in the dust collector 2000 sucks in air through the second air duct 2112b to form the negative pressure in the accommodating groove 110a. The configuration of the second air duct 2112b facilitates the communication between the accommodating groove 110a and the dust collector 2000, such that no suction assembly needs to be disposed in the dust collection base station 1000. The dust collector 2000 further includes a separator and a switchable diverter valve, and the separator may be located in the dust cup 210. An inlet of the separator communicates with the first air duct 2112a, and an air flow outlet of the separator communicates with the second suction assembly. The debris separated by the separator accumulates at an end of the dust cup 210 facing the dust discharge cover 212. The switchable diverter valve may be disposed between the air flow outlet of the separator and the second suction assembly. The diverter valve may have a first state and a second state. In the first state, the diverter valve closes the second air duct 2112b, and the air flow outlet of the separator communicates with the second suction assembly, enabling the dust collector 2000 to perform a cleaning operation and suck debris into the dust cup 210. In the second state, the diverter valve opens the second air duct 2112b and separates the air flow outlet of the separator from the second suction assembly. To collect dust from the dust cup 210, the diverter valve is in the second state.

[0106] FIG. 12 is a schematic view of a locking member provided by an embodiment of the present disclosure. As shown in FIG. 12, the locking member 213 includes lock catch 2131, and the lock catch 2131 includes rotatable connecting portion 21311, pressing unlocking portion 21312, and hook portion 21313. The rotatable connecting portion 21311 is connected between the pressing unlocking portion 21312 and the hook portion 21313. The rotatable connecting portion 21311 is rotatably connected to the cup body 211. The hook portion 21313 is located at an opening of the cup body 211, and the hook portion 21313 is configured to be engaged with an edge of the dust discharge cover 212.

[0107] The rotatable connecting portion 21311 is located at a central portion of the lock catch 2131, and the pressing unlocking portion 21312 and the hook portion 21313 are located on two sides of the rotatable connecting portion 21311, respectively. Pressing the pressing unlocking portion 21312 causes the lock catch 2131 to rotate, such that the hook portion 21313 is separated from the dust discharge cover 212, thereby unlocking the dust discharge cover 212. The lock catch 2131 has a simple structure and is easy to design. Moreover, the structure of the lock catch 2131 is similar to a lever, so the length of the pressing unlocking portion 21312 and the hook portion 21313 is adjusted to enable the dust discharge cover 212 to be opened when the pressure in the accommodating groove 110a is within the preset negative pressure range.

[0108] As shown in FIG. 12, the locking member 213 further includes 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 configured to exert a force for causing the pressing unlocking portion 21312 to rotate away from the cup body 211.

[0109] Exemplarily, the third elastic member 2132 may be a spring.

[0110] Pressing the pressing unlocking portion 21312 to rotate the lock catch 2131 requires overcoming at least the elastic force of the third elastic member 2132. The third elastic member 2132 can prevent the lock catch 2131 from being triggered too easily. In addition, the elastic force of the third elastic member 2132 is similar to the elastic force of the second elastic member 127, both hindering the triggering of the unlocking of the dust discharge cover 212. Therefore, like the second elastic member 127, by adjusting the elastic force of the third elastic member 2132, the timing of opening the dust discharge cover 212 can also be changed. Thus, the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range.

[0111] As shown in FIG. 12, the hook portion 21313 includes hook body 21314 and first wear-resistant member 21315. The first wear-resistant member 21315 is connected to the hook body 21314, and the first wear-resistant member 21315 is configured to be in contact with the dust discharge cover 212.

[0112] FIG. 13 is a schematic view of a hook portion and a dust discharge cover provided by an embodiment of the present disclosure in an engaged state. As shown in FIG. 13, the dust discharge cover 212 includes dust discharge cover body 2121 and second wear-resistant member 2122. The second wear-resistant member 2122 is connected to the dust discharge cover body 2121. The second wear-resistant member 2122 is configured to be in contact with the hook portion 21313. When the dust discharge cover 212 is in the closed state, the first wear-resistant member 21315 is in contact with the second wear-resistant member 2122.

[0113] The contact between the first wear-resistant member 21315 and the second wear-resistant member 2122 can reduce the wear between the hook portion 21313 and the dust discharge cover 212, and avoid the difficulty in opening the lock catch 2131.

[0114] As shown in FIG. 13, angle α between first locking surface 21313a of the hook portion 21313 and second locking surface 212a of the dust discharge cover 212 is 0° to 10°. The first locking surface 21313a is a surface of the hook portion 21313 in contact with the dust discharge cover 212, and the second locking surface 212a is a surface of the dust discharge cover 212 in contact with the hook portion 21313.

[0115] The relatively small angle between the two contacting surfaces of the hook portion 21313 and the dust discharge cover 212 reduces the frictional resistance between the first locking surface 21313a and the second locking surface 212a during the opening of the dust discharge cover 212, thereby reducing wear and facilitating the opening of the dust discharge cover 212. In addition, by setting the angle α between the first locking surface 21313a of the hook portion 21313 and the second locking surface 212a of the dust discharge cover 212 to be 0° to 10°, the hook portion 21313 is stably engaged with the dust discharge cover 212. For example, the hook portion 21313 and the dust discharge cover 212 are stably engaged when the air pressure in the accommodating groove 110a does not reach the preset negative pressure range, thereby improving the stability of dust collection by the dust collection base station 1000.

[0116] An embodiment of the present disclosure further provides a cleaning device. The cleaning device includes dust collection base station 1000 and dust collector 2000, and the dust collector 2000 includes dust cup 210. The dust collection base station 1000 may be any of the aforementioned dust collection base stations, and the dust cup 210 may be any of the aforementioned dust cups.

[0117] The cover opening structure 120 of the base station body 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. Therefore, 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. In addition, 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. 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. This design reduces or even avoids the residue of debris in the dust cup, and also avoids impairing the normal operation of the cleaning device due to excessive impact generated when the debris enters the accommodating groove.

[0118] An embodiment of the present disclosure further provides a dust collection method. The dust collection method is applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, and includes following steps.

[0119] A negative pressure is generated to act on a first device and cause the first device to act, and the first device acts on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0120] In some optional implementations, the cover may be the aforementioned dust discharge cover 212, configured to selectively close or open the internal space of the dust cup 210. The first device may be the whole or part of the aforementioned cover opening structure 120, and the second device may be the whole or part of the aforementioned locking member 213. The dust collection device may include a negative pressure device, and the negative pressure device may include at least one of the aforementioned first suction assembly and the second suction assembly. The negative pressure device is configured to generate the negative pressure, and a pressure difference generated by the negative pressure can make the first device move under the action of the air pressure difference and act on the second device to release the cover.

[0121] In some optional implementations, the dust collection device may include or be externally connected to any of the aforementioned dust collection base stations 1000. The dust collection base station 1000 may include base station body 110, and a top of base station body 110 is provided with accommodating groove 110a for the bottom of the dust cup 210 to extend into. By configuring the dust collector 2000, the dust collection base station 1000, and the negative pressure device to cooperate with each other, the dust collector 2000 can suck debris on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device can suck the debris in the dust cup 210 into the base station body 110. The negative pressure device forms an air pressure difference between the air pressure inside base station body 110 and the air pressure of the external environment, which can generate a thrust to drive the cover opening structure 120 to slide toward the internal space of base station body 110 until it pushes the locking member 213, such that locking member 213 releases the dust discharge cover 212. The user can automatically open the dust discharge cover 212 without manually operating the locking member 213. Since there is also an air pressure difference between the air pressure inside the base station body 110 and the air pressure inside the dust cup 210, an instantaneous impact force is generated at the moment the dust discharge cover 212 is opened to suck the debris in the dust cup 210 into the base station body 110, thereby reducing the residue of the debris in the dust cup 210 and achieving more thorough and efficient cleaning of the dust cup 210. After the dust discharge cover 212 is opened, the negative pressure environment inside the base station body 110 can still continuously generate a suction force on the debris in the dust cup 210 to prevent debris backflow. Therefore, the dust collection base station 1000 achieves a better effect in collecting the debris from the dust collector 2000, making the cleaning device more convenient to use.

[0122] In some optional implementations, the dust cup 210 selectively communicates with a first chamber configured for dust collection, and the first chamber generates a negative pressure through the negative pressure device.

[0123] The step that the first device acts on the second device to release the cover includes a step that the negative pressure device generates a negative pressure in the first chamber, such that the first device moves under the action of the air pressure difference to push the second device to release the cover.

[0124] In some optional implementations, the first chamber may be a chamber formed inside the aforementioned base station body 110. In use, the dust cup 210 selectively communicates with the first chamber. That is, the communication state between the dust cup 210 and the first chamber is selectable. In one state, the dust cup 210 communicates with the first chamber, and in another state, the dust cup 210 does not communicate with the first chamber. Specifically, the selective communication can be achieved by configuring the first device at the joint between dust cup 210 and the first chamber, that is, the whole or part of the aforementioned cover opening structure 120. The cover opening structure 120 can be in various forms, such as a push rod, a button, a slider, a sliding rod, a lever, a cantilever, a piston rod, a spring-loaded telescopic rod, or a selector switch.

[0125] In some optional implementations, a second chamber is disposed outside the first chamber. The first device is at least partially located in the second chamber, and the second chamber communicates with the external environment of the first chamber, such that an air pressure difference is generated between the first chamber and the second chamber.

[0126] In some optional implementations, the first chamber may be a chamber formed by the aforementioned base station body 110, and the second chamber may be the aforementioned air chamber 120a. The outer cover 124 is connected to the side wall of the base station body 110, the through hole 110b is disposed on the side wall of the base station body 110, and the vent hole 124a opposite to the through hole 110b is disposed in the outer cover 124. The outer cover 124 forms an accommodating chamber. The vent hole 124a communicates the accommodating chamber with the external environment of the base station body 110 and is configured to generate an air pressure difference between the accommodating chamber and the internal space of the base station body 110. The cover opening structure 120 passes through the through hole 110b, and the cover opening structure 120 is partially located in the accommodating chamber. The accommodating chamber communicates with the internal space of the base station body 110 through the through hole 110b, and the accommodating chamber communicates with the external environment through the vent hole 124a. When the air pressure inside the base station body 110 is much lower than the air pressure of the external environment, air in the external environment can enter the accommodating chamber of the outer cover 124 from the vent hole 124a to push the cover opening structure 120.

[0127] In some optional implementations, the first device includes a moving portion, and the moving portion is provided with a deformable portion. The step that the first device moves under the action of the air pressure difference to push the second device to release the cover includes: the deformable portion exerts a restoring force opposite to a moving direction of the moving portion on the moving portion. During the movement of the moving portion, the restoring force is less than or equal to a force generated based on the air pressure difference.

[0128] In some optional implementations, the moving portion may include the aforementioned rod body 1211 and connecting disc 1212, and the deformable portion may include the aforementioned second elastic member 127. One end of the rod body 1211 passes through the through hole 110b, and the other end of the rod body 1211 is connected to the connecting disc 1212. The connecting disc 1212 is placed inside the outer cover 124. The second elastic member 127 is sleeved on an outer periphery of the rod body 1211. The second elastic member 127 is configured to exert a force pointing to an initial position on the connecting disc 1212. When the second elastic member 127 is in an initial compressed state, the connecting disc 1212 abuts against an inner wall of outer cover 124 to close the vent hole 124a. When the air pressure difference between the external environment and the internal space of 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 compressed state, and the connecting disc 1212 slides under the action of the air thrust, thereby making the rod body 1211 abut against the locking member 213.

[0129] In some optional implementations, during the movement of the moving portion, the restoring force is less than or equal to the force generated based on the air pressure difference, such that a deformable member can at least maintain an initial compressed state. When the restoring force is equal to the force exerted by the air pressure difference, the deformable member can maintain the initial compressed state. When the restoring force is less than the force exerted by the air pressure difference, the force exerted by the air pressure difference can further compress the deformable member. Thus, the connecting disc 1212 slides under the action of the air thrust for causing the rod body 1211 to abut against the locking member 213.

[0130] For each embodiment of the dust collection method, reference is made to the aforementioned implementations, and the technical effects produced refer to the technical effects of the aforementioned implementations, which will not be repeated herein.

[0131] Please refer to FIGS. 1, 13 to 18, and 24 to 25 collectively. An embodiment of the present disclosure provides a cleaning device, including dust collector 2000, dust collection base station 1000, and negative pressure device 30. The dust collector 2000 includes dust cup 210 and first cover 12. The first cover 12 is configured to close or open an internal space of the dust cup 210. The dust cup 210 is provided with lock catch 2131, and the lock catch 2131 is configured to lock the first cover 12.

[0132] The cleaning device further includes unlocking member 22. The negative pressure device 30 is configured to generate a negative pressure inside the dust collection base station 1000, such that the unlocking member 22 acts on the lock catch 2131 under the action of an air pressure difference to unlock the first cover 12.

[0133] In the above implementation, the first cover 12 can close or open the internal space of the dust cup 210 in various ways. For example, the first cover 12 can selectively close the internal space of the dust cup 210 via fixed connection, rotational connection, snap-fit connection, rotary connection, hinged connection, magnetic connection or other methods. The lock catch 2131 is disposed on the dust cup 210 through fixed connection, rotational connection, snap connection, rotary connection, magnetic connection or other connection methods. The lock catch 2131 is configured to lock the first cover 12. For example, the lock catch 2131 locks the first cover 12 via contact methods such as clamping, buckling, hinging or non-contact methods such as magnetic connection. The cleaning device further includes the unlocking member 22, and the unlocking member 22 can be disposed at multiple positions of the cleaning device, such as the dust collection base station 1000 or the dust collector 2000. The unlocking member 22 can be in various forms, such as a push rod, a button, a slider, a sliding rod, a lever, a cantilever, a piston rod, a spring-loaded telescopic rod or a selector switch. The negative pressure device 30 is configured to generate the negative pressure, for example, in the dust collection base station 1000, such that the unlocking member 22 acts on the lock catch 2131 under the action of the air pressure difference to unlock the first cover 12. The negative pressure device 30 can be various devices that generate a suction or pressure, or generate a pressure difference by changing an air flow speed. The unlocking member 22 can slide, roll, or rotate or perform other actions under the action of the pressure difference and act on the lock catch 2131 to unlock the first cover 12. For example, the unlocking member 22 can act on the lock catch 2131 through a force. After the first cover 12 is unlocked, the debris 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 catch 2131, which realize simple and efficient self-cleaning of the cleaning device.

[0134] In some embodiments, please refer to FIGS. 13 to 18 and 24 to 25 collectively. Dust discharge port 101 is disposed at the bottom of the dust cup 210. One end of the first cover 12 is hinged to one side of the bottom of the dust cup 210. Lock catch 2131 is rotatably connected to the other side of the bottom of the dust cup 210. The lock catch 2131 is configured to lock the other end of the first cover 12.

[0135] The dust collection base station 1000 includes dust collection bin 21 and unlocking member 22. Dust collection port 201 is disposed at a top of the dust collection bin 21 for the bottom of the dust cup 210 to extend into, and socket 202 is disposed on a side wall of the dust collection bin 21 for the sliding assembly of the unlocking member 22.

[0136] The negative pressure device 30 is configured to generate a negative pressure inside the dust collection bin 21, allowing the unlocking member 22 to move under the action of an air pressure difference to push the lock catch 2131 to disengage from the first cover 12. In use, the movement of the unlocking member 22 under the action of the air pressure difference may be sliding, translating, or telescoping, etc.

[0137] In the prior art, since the debris in the dust cup can only fall into the dust collection base station under the action of its own weight, viscous debris or compressed debris is easy to adhere to the inner wall of the dust cup. After the dust collector is used multiple times, the residual debris in the dust cup will gradually accumulate, making it more difficult to fall, so the user needs to manually clear the debris in the dust cup.

[0138] In the cleaning device provided by the embodiment of the present disclosure, the dust collector 2000, the dust collection base station 1000, and the negative pressure device 30 cooperate with each other. The dust collector 2000 can suck debris on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device 30 can suck debris in the dust cup 210 into the dust collection bin 21. The negative pressure device 30 forms an air pressure difference between the air pressure inside the dust collection bin 21 and the air pressure of the external environment. Thus, a thrust is generated at the socket 202 to drive the unlocking member 22 to slide toward the internal space of the dust collection bin 21 until it pushes the lock catch 2131, such that the lock catch 2131 releases the first cover 12. The user can automatically open the dust discharge port 101 of the first cover 12 without manually operating the lock catch 2131. Since the air pressure inside the dust collection bin 21 and the air pressure inside the dust cup 210 also form an air pressure difference, an instantaneous impact force is generated at the moment the first cover 12 opens the dust discharge port 101 to suck the debris in the dust cup 210 into the dust collection bin 21, thereby reducing the residue of debris in the dust cup 210 and achieving more thorough and efficient cleaning of the dust cup 210. After the first cover 12 opens the dust discharge port 101, the negative pressure environment inside the dust collection bin 21 can still continuously generate a suction force on the debris in the dust cup 210 to prevent debris backflow. The dust collection base station 1000 achieves a better effect in collecting debris from the dust collector 2000, thereby enabling more convenient use of the cleaning device.

[0139] In use, the negative pressure device 30 may be a fan. When the cleaning device operates in a dust suction mode, the dust collector 2000 is operated alone, while the negative pressure device 30 is not operated to suck debris on the ground into the dust cup 210. When the cleaning device operates in a dust discharge mode, the dust collector 2000 is placed on the dust collection base station 1000, and the negative pressure device 30 does work to suck debris in the dust cup 210 into the dust collection bin 21.

[0140] Specifically, the capacity of the dust collection bin 21 is larger than that of the dust cup 210. After the dust collector 2000 is used continuously for multiple times, the dust collection bin 21 only requires clearing once to continue collecting debris from the dust cup 210, thereby saving the user's time and effort spent clearing the debris of the entire cleaning device.

[0141] In use, the dust collector 2000 is further provided with handle 17, suction hose 18, and suction head 19. The handle 17 and the suction head 19 are respectively disposed on two ends of the suction hose 18. A top of the dust cup 210 is connected to the handle 17. A side wall of the dust cup 210 is connected to a side wall of the suction hose 18. The suction hose 18 is provided with dust outlet 105 communicating with the internal space of the dust cup 210. When the cleaning device operates in the dust suction mode, the suction head 19 sucks debris on the ground or a worktop, and the debris is transported from the dust outlet 105 to the dust cup 210 through the suction hose 18.

[0142] In an embodiment, please refer to FIGS. 20 and 21 collectively. Third air duct 113, second air duct 2112b, and first air duct 2112a are formed inside the dust cup 210. The dust discharge port 101 and the first air duct 2112a communicate with the third air duct 113. The second air duct 2112b is isolated from the third air duct 113. Air inlet 102 communicating with the second air duct 2112b is further disposed at the bottom of the dust cup 210. The air inlet 102 is configured to be connected to the top of the dust collection bin 21.

[0143] When the cleaning device operates in the dust suction mode, a first air flow generated by the negative pressure device 30 is conveyed through the air duct including the third air duct 113 and the first air duct 2112a.

[0144] When the cleaning device operates in the dust discharge mode, a second air flow generated by the negative pressure device 30 is conveyed through the air duct including the second air duct 2112b.

[0145] In use, the third air duct 113 is isolated from the second air duct 2112b during the dust discharge mode, which avoids mutual influence between the dust suction mode and the dust discharge mode of the cleaning device, thereby ensuring more accurate flow directions of the air and debris.

[0146] It should be noted that the first air flow may be an air flow circulating in the cleaning device when the cleaning device operates in the dust suction mode, and the second air flow may be an air flow circulating in the cleaning device when the cleaning device operates in the dust discharge mode. For example, the first air flow may refer to air flowing from the external environment to the internal space of the dust cup 210 through the third air duct 113 and the first air duct 2112a when the negative pressure device 30 generates the negative pressure, and the external debris and dirt are collected into the internal space of the dust cup 210 by relying on the first air flow. The second air flow may refer to the air circulated from the internal space of the dust cup 210 through the second air duct 2112b and generated by the negative pressure device 30, and the debris and dirt collected in the dust cup 210 are discharged into the dust collection bin 21 through the second air flow.

[0147] Specifically, the dust cup 210 has a cylindrical structure. The third air duct 113 and the second air duct 2112b 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. The first air duct 2112a communicates with the dust outlet 105 of the suction hose 18.

[0148] In an embodiment, please refer to FIGS. 15, 16, and 20 to 22 collectively. Second cover 14 is disposed at the top of the dust cup 210. The second cover 14 is provided with first opening 103 communicating with the third air duct 113 and second opening 104 communicating with the second air duct 2112b. Air duct diverter 15 is rotatably connected to a side of the second cover 14 away from the dust discharge port 101. The air duct diverter 15 is configured to selectively open the first opening 103 and the second opening 104. That is, the air duct diverter 15 is configured to open one of the first opening 103 and the second opening 104 and close the other.

[0149] In use, the dust discharge port 101 and the first opening 103 respectively communicate with two opposite ends of the third air duct 113, and the air inlet 102 and the second opening 104 respectively communicate with two opposite ends of the second air duct 2112b. By configuring the air duct diverter 15 to control the connection state of the third air duct 113 and the second air duct 2112b, the air sucked by the dust collector 2000 has different flow directions to perform the dust suction mode and the dust discharge mode as needed.

[0150] In an embodiment, please refer to FIGS. 15, 16, and 20 to 22 collectively. The air duct diverter 15 includes first blocking portion 151 and second blocking portion 152 connected to each other. The first blocking portion 151 corresponds to the first opening 103, and the second blocking portion 152 corresponds to the second opening 104. That is, the first blocking portion 151 is configured to selectively open the first opening 103, and the second blocking portion 152 is configured to selectively open the second opening 104.

[0151] In use, the second cover 14 is snap-fitted or bolted to the top of the dust cup 210. Two opposite sides of the first blocking portion 151 are rotatably connected to the second cover 14. An elastic member is connected between the first blocking portion 151 and the second cover 14. The elastic member can elastically deform to drive the first blocking portion 151 and the second blocking portion 152 to swing in opposite directions. When the cleaning device operates in the dust suction mode, the first opening 103 is opened and the second opening 104 is closed, and only the third air duct 113 is connected. When the cleaning device operates in the dust discharge mode, the first opening 103 is closed and the second opening 104 is opened, and only the second air duct 2112b is connected. In use, the elastic member may be a spring, an elastic pin, etc.

[0152] In an embodiment, please refer to FIGS. 15, 16, and 20 to 23 collectively. Push rod 141 is slidably disposed in the second air duct 2112b. Air outlet 203 is further disposed at the top of the dust collection bin 21, and upright post 23 is disposed at the air outlet 203. One end of the push rod 141 is hinged to the air duct diverter 15, and the other end of the push rod 141 is configured to abut against the upright post 23.

[0153] Bushing 142 is disposed on an inner wall of the second air duct 2112b. The push rod 141 is nested inside the bushing 142, and the bushing 142 is configured to prevent the push rod 141 from shifting during sliding.

[0154] In use, the length direction of the push rod 141 is parallel to the extending direction of the second air duct 2112b. The bushing 142 is disposed on the inner peripheral wall of the second air duct 2112b, and the push rod 141 passes through a central portion of the bushing 142. The bushing 142 is configured to prevent the push rod 141 from shifting during sliding, such that the push rod 141 can drive the air duct diverter 15 to swing more stably and smoothly.

[0155] In use, please refer to FIGS. 17, 18, and 24 collectively. Rear housing 27 is connected to the side wall of the dust collection bin 21 to jointly enclose dust discharge channel 2101. Third opening 206 is further disposed on the side wall of the dust collection bin 21. The air outlet 203 and the third opening 206 communicate with the dust discharge channel 2101.

[0156] Specifically, when the bottom of the dust cup 210 is extended into the top of the dust collection bin 21, the first cover 12 does not open the dust discharge port 101, and the dust collection port 201 is in a closed state. The air outlet 203 communicates with the air inlet 102. The upright post 23 passes through the air inlet 102 and abuts against the push rod 141. The push rod 141 drives the air duct diverter 15 to swing until the first opening 103 is closed and the second opening 104 is opened, and the second air duct 2112b is in a connected state. After the negative pressure device 30 is started, the air in the dust collection bin 21 enters the dust discharge channel 2101 from 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 dust cup 210 through the second opening 104. Thus, a negative pressure environment is formed inside the dust collection bin 21.

[0157] In an embodiment, please refer to FIGS. 15, 16, and 20 to 22 collectively. Separator 16 is disposed at the first opening 103 on a side of the second cover 14 facing the dust discharge port 101, and the separator 16 is configured to filter the first air flow when the dust suction mode is performed.

[0158] The separator 16 includes sleeve 161, cyclone cone 162, and filter element 163. The sleeve 161 is connected to the second cover 14. The cyclone cone 162 is rotatably connected inside the sleeve 161 and points to the dust collection port 201. The filter element 163 is sleeved on the sleeve 161. The cyclone cone 162 is configured to guide the first air flow entering the third air duct 113 from the first air duct 2112a to be discharged from the first opening 103. This design reduces the turbulence of the air flow in the third air duct 113, improves the efficiency of the dust collector 2000, and reduces the noise of the dust collector 2000.

[0159] In use, the separator 16 is configured to filter the debris and air entering the third air duct 113 from the first air duct 2112a, such that the debris is retained in the third air duct 113 and the air flows out of the third air duct 113 from the first opening 103. This design prevents the debris sucked into the dust cup 210 by the dust collector 2000 from being re-discharged into the external environment, thereby improving the cleaning effect of the dust collector 2000.

[0160] In an embodiment, please refer to FIGS. 15 and 16. Mounting groove 106 is formed on a side wall of the dust cup 210 for mounting the lock catch 2131.

[0161] In use, the lock catch 2131 is placed in the mounting groove 106, which prevents the user from accidentally touching the lock catch 2131 to open the first cover 12. A central portion of the lock catch 2131 is rotatably connected to two opposite side walls of the mounting groove 106, and an upper portion of the lock catch 2131 is far away from the dust discharge port 101. A reset member is connected between the upper portion of the lock catch 2131 and a bottom wall of the mounting groove 106. The reset member is configured to restore the lock catch 2131 to an initial position. A lower portion of the lock catch 2131 extends to the dust discharge port 101, and the lower portion of the lock catch 2131 is provided with a hook for locking the first cover 12. The reset member may be a spring, a rubber member, a plastic member, a stretch band, a gas spring, etc.

[0162] Specifically, when the unlocking member 22 does not abut against the lock catch 2131, the reset member is in an initial compressed state. When the unlocking member 22 abuts against an upper surface of the lock catch 2131 away from the reset member, the reset member is further compressed on the basis of the initial compressed state. This further compression drives the bottom of the lock catch 2131 to swing around the central portion of the lock catch 2131, such that the lower portion of the lock catch 2131 is disengaged from the first cover 12.

[0163] In an embodiment, please refer to FIGS. 17 to 19 collectively. Sealing cover 24 is connected to the side wall of the dust collection bin 21. The sealing cover 24 is provided with vent hole 204 opposite to the socket 202. The sealing cover 24 forms an accommodating chamber. The vent hole 204 communicates the accommodating chamber with the external environment of the dust collection bin 21, and is configured to generate the air pressure difference between the accommodating chamber and the dust collection bin 21. The unlocking member 22 passes through the socket 202, and the unlocking member 22 is partially located in the accommodating chamber.

[0164] In use, the accommodating chamber communicates with the internal space of the dust collection bin 21 through the socket 202, and the accommodating chamber communicates with the external environment through the vent hole 204. When the air pressure inside the dust collection bin 21 is much lower than the air pressure of the external environment, air in the external environment enters the accommodating chamber of the sealing cover 24 from the vent hole 204 to push the unlocking member 22.

[0165] In an embodiment, please refer to FIGS. 16 to 19 collectively. The unlocking member 22 includes sliding piston rod 221 and slider 222. One end of the piston rod 221 passes through the socket 202, and the other end of the piston rod 221 is connected to the slider 222. The slider 222 is placed inside the sealing cover 24. Deformable member 223 is sleeved on an outer periphery of the piston rod 221, and the deformable member 223 is configured to exert a force pointing to an initial position on the slider 222.

[0166] In use, when the dust collector 2000 is not placed on the dust collection base station 1000, the deformable member 223 is in the initial compressed state, and the slider 222 abuts against an inner wall of the sealing cover 24 to close the vent hole 204. After the dust collector 2000 is placed on the dust collection base station 1000 for a period of time, the air pressure difference between the external environment and the internal space of the dust collection bin 21 is greater than the elastic force of the deformable member 223. Thus, the deformable member 223 is further compressed on the basis of the initial compressed state, and the slider 222 slides under the action of air thrust, thereby making the piston rod 221 abut against the lock catch 2131. In use, the deformable member refers to a component that can undergo elastic deformation and recover, and its specific structure includes but is not limited to a spring, a rubber member, a stretch band, a gas spring, etc.

[0167] In an embodiment, the range of the air pressure difference is 3 kPa to 25 kPa. In the implementation of the present disclosure, a suitable negative pressure can help the unlocking member 22 act on the lock catch 2131 under the action of the air pressure difference to unlock the first cover 12, thereby enabling efficient self-cleaning of the dust cup 210. In use, the air pressure difference can be any value within the range of 3 kPa to 25 kPa, such as 3 kPa, 5 kPa, 8 kPa, 10 kPa, 12 kPa, 13 kPa, 14 kPa, 15 kPa, 16 kPa, 18 kPa, 20 kPa, 21 kPa, 22 kPa, 23 kPa, 24 kPa, and 25 kPa.

[0168] In an embodiment, the range of the air pressure difference is 7 kPa to 25 kPa. Limiting the air pressure difference of the cleaning device to 7 kPa to 25 kPa is a preferred solution adapted to its structural design and functional requirements. From the perspective of unlocking reliability, the lower limit of 7 kPa is higher than a low threshold design, which can provide a sufficient driving force for the unlocking member 22. That is, when a negative pressure is generated in the dust collection bin 21 and the air pressure difference is formed between the accommodating chamber of the sealing cover 24 and the dust collection bin 21, the slider 222 overcomes the elastic force of the deformable member 223 to push the piston rod 221 and stably act on the lock catch 2131 to unlock the first cover 12, avoiding unlocking jamming or failure caused by air pressure fluctuations. From the perspective of dust discharge stability and component protection, the upper limit of 25 kPa can avoid excessive negative pressure. That is, on the one hand, it prevents excessive impact at the moment the first cover 12 is opened, avoiding damage to the hinge of the cover or splashing of debris. On the other hand, combined with the isolation design of the third air duct 113 and the second air duct 2112b of the dust cup 210, it can form a stable air flow field. In the dust discharge mode, the second air flow flows smoothly along the second air duct 2112b to completely remove the debris in the dust cup 210, especially viscous debris, through negative pressure suction, and to avoid deviation of the air duct diverter 15 or jamming of the push rod 141 caused by strong air flow. Meanwhile, this range balances energy consumption and cleaning effect. That is, the negative pressure above 7 kPa meets the dust discharge suction demand, and the 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 operational stability and practicality of the cleaning device.

[0169] In an embodiment, please refer to FIGS. 17 and 18. The dust collection base station 1000 further includes dust bag 1101 and front housing 26. The dust bag 1101 is placed inside the dust collection bin 21, and the front housing 26 is detachably disposed on the side wall of the dust collection bin 21.

[0170] In use, the side wall of the dust collection bin 21 is further provided with access opening 205, and the access opening 205 is configured for the detachable mounting of the front housing 26. The dust bag 1101 is snap-fitted onto an inner peripheral wall of the dust collection bin 21. The debris falling into the dust collection bin 21 from the dust cup 210 is collected through the dust bag 1101, and the dust bag 1101 can be taken out from the access opening 205 by removing the front housing 26 to discharge the collected debris. Therefore, the dust collection base station 1000 is convenient to use.

[0171] In an embodiment, please refer to FIGS. 12 to 18 and 24 collectively. The dust collector 2000 is provided with the negative pressure device 30.

[0172] In use, the negative pressure device 30 is placed in the handle 17, and multiple air outlet holes 107 are disposed on an outer periphery of the handle 17. When the cleaning device operates in the dust suction mode, the negative pressure device 30 independently generates a negative pressure inside the dust cup 210. When the cleaning device operates in the dust discharge mode, the negative pressure device 30 generates a negative pressure inside the dust collection bin 21.

[0173] Specifically, when the cleaning device operates in the dust suction mode, the negative pressure device 30 does work. Air in the external environment flows into the suction hose 18 from the suction head 19, flows through the first air duct 2112a from the dust outlet 105 into the third air duct 113, and then flows through the separator 16 and out of the dust cup 210 from the first opening 103. Finally, the air flows out from the air outlet holes 107 of the handle 17.

[0174] Specifically, when the cleaning device operates in the dust discharge mode, the negative pressure device 30 does work. Air in the dust collection bin 21 flows through the dust discharge channel 2101 from the third opening 206, enters the air inlet 102 from the air outlet 203, and then flows through the second air duct 2112b and out of the dust cup 210 from the second opening 104. Finally, the air flows out from the air outlet holes 107 of the handle 17.

[0175] In an embodiment, please refer to FIGS. 13 to 18 and 25 collectively. Each of the dust collector 2000 and the dust collection base station 1000 is provided with one negative pressure device 30.

[0176] In use, there are two negative pressure devices 30. One of the two negative pressure devices 30 is placed in the handle 17 and the other is placed in the dust collection bin 21. When the cleaning device operates in the dust discharge mode, the two negative pressure devices 30 work simultaneously, thereby improving the cleaning efficiency of the dust collection base station 1000.

[0177] Specifically, when the cleaning device operates in the dust discharge mode, on the basis of the work done by the negative pressure device 30 in the handle 17, the negative pressure device 30 in the dust collection bin 21 further does work. This increases the rate at which air in the dust collection bin 21 flows into the dust discharge channel 2101 from the third opening 206, thereby shortening the time required for forming a negative pressure environment inside the dust collection bin 21.

[0178] The present disclosure provides a dust collection method, which is applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, and includes following steps.

[0179] A negative pressure is generated to act on a first device and cause the first device to act, and the first device acts on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0180] In some optional implementations, the cover may be the first cover 12 in each embodiment of the first aspect, configured to selectively close or open the internal space of the dust cup 210. The first device may be the unlocking member 22 in each embodiment of the first aspect, and the second device may be the lock catch 2131 in each embodiment of the first aspect. The dust collection device may include the negative pressure device 30 as described in each embodiment of the first aspect, which is configured to generate a negative pressure. An air pressure difference generated by the negative pressure causes the first device to move under the action of the air pressure difference and act on the second device to release the cover.

[0181] In some optional implementations, the dust collection device may include or be externally connected to the dust collection base station 1000 in each embodiment of the first aspect. The dust collection base station 1000 may include dust collection bin 21, and a top of the dust collection bin 21 is provided with dust collection port 201 configured for the bottom of the dust cup 210 to extend into. The dust collector 2000, the dust collection base station 1000, and the negative pressure device 30 cooperate with each other. The dust collector 2000 can suck debris on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device 30 can suck debris in the dust cup 210 into the dust collection bin 21. The negative pressure device 30 forms an air pressure difference between the air pressure inside the dust collection bin 21 and the air pressure of the external environment. Thus, a thrust is generated to drive the unlocking member 22 to slide toward the internal space of the dust collection bin 21 until it pushes the lock catch 2131, such that the lock catch 2131 releases the first cover 12. The user can automatically open the dust discharge port 101 of the first cover 12 without manually operating the lock catch 2131. Since the air pressure inside the dust collection bin 21 and the air pressure inside the dust cup 210 also form an air pressure difference, an instantaneous impact force is generated at the moment the first cover 12 opens the dust discharge port 101 to suck the debris in the dust cup 210 into the dust collection bin 21, thereby reducing the residue of debris in the dust cup 210 and achieving more thorough and efficient cleaning of the dust cup 210. After the first cover 12 opens the dust discharge port 101, the negative pressure environment inside the dust collection bin 21 can still continuously generate a suction force on the debris in the dust cup 210 to prevent debris backflow. The dust collection base station 1000 achieves a better effect in collecting debris from the dust collector 2000, thereby enabling more convenient use of the cleaning device. In some optional implementations, the dust cup selectively communicates with a first chamber configured for dust collection, and the first chamber generates a negative pressure through the negative pressure device.

[0182] The step that the first device acts on the second device to release the cover includes a step that the negative pressure device generates a negative pressure in the first chamber, such that the first device moves under the action of the air pressure difference to push the second device to release the cover.

[0183] In some optional implementations, the first chamber may be a chamber formed inside the dust collection bin 21 described in the first aspect. In use, the dust cup selectively communicates with the first chamber. Specifically, the communication state between the dust cup and the first chamber is selectable. That is, the dust cup communicates with the first chamber in one state, and the dust cup does not communicate with the first chamber in another state. Specifically, the selective communication can be achieved by configuring the first device at the joint between the dust cup and the first chamber, that is, the unlocking member 22 described in the first aspect. The unlocking member 22 can be in various forms, such as a push rod, a button, a slider, a sliding rod, a lever, a cantilever, a piston rod, a spring-loaded telescopic rod or a selector switch.

[0184] In some optional implementations, a second chamber is disposed outside the first chamber. The first device is at least partially located in the second chamber, and the second chamber communicates with the external environment of the first chamber, such that an air pressure difference is generated between the first chamber and the second chamber.

[0185] In some optional implementations, the first chamber may be the chamber formed by the dust collection bin 21 described in the first aspect, and the second chamber may be the accommodating chamber formed by the sealing cover 24 described in the first aspect. Sealing cover 24 is connected to a side wall of the dust collection bin 21, and the side wall of the dust collection bin 21 is provided with socket 202. The sealing cover 24 is provided with vent hole 204 opposite to the socket 202. The sealing cover 24 forms the accommodating chamber, and the vent hole 204 communicates the accommodating chamber with the external environment of the dust collection bin 21, thereby generating an air pressure difference between the accommodating chamber and the dust collection bin 21. The unlocking member 22 passes through the socket 202, and the unlocking member 22 is partially located in the accommodating chamber. The accommodating chamber communicates with the internal space of the dust collection bin 21 through the socket 202, and the accommodating chamber communicates with the external environment through the vent hole 204. When the air pressure inside the dust collection bin 21 is much lower than the air pressure of the external environment, air in the external environment enters the accommodating chamber of the sealing cover 24 from the vent hole 204 to push the unlocking member 22.

[0186] In some optional implementations, the first device includes a moving portion, and the moving portion is provided with a deformable portion. The step that the first device moves under the action of the air pressure difference to push the second device to release the cover includes: the deformable portion exerts a restoring force opposite to a moving direction of the moving portion on the moving portion. During the movement of the moving portion, the restoring force is less than or equal to a force generated based on the air pressure difference.

[0187] In some optional implementations, the moving portion may include the piston rod 221 and the slider 222 in each embodiment of the first aspect, and the deformable portion may include the deformable member 223 in each embodiment of the first aspect. One end of the piston rod 221 passes through the socket 202, and the other end of the piston rod 221 is connected to the slider 222. The slider 222 is placed inside the sealing cover 24. Deformable member 223 is sleeved on an outer periphery of the piston rod 221, and the deformable member 223 is configured to exert a force pointing to an initial position on the slider 222. When the deformable member 223 is in an initial compressed state, the slider 222 abuts against an inner wall of the sealing cover 24 to close the vent hole 204. When the air pressure difference between the external environment and the internal space of the dust collection bin 21 is greater than the elastic force of the deformable member 223, the deformable member 223 is further compressed on the basis of the initial compressed state, and the slider 222 slides under the action of air thrust, thereby making the piston rod 221 abut against the lock catch 2131.

[0188] In some optional implementations, during the movement of the moving portion, the restoring force is less than or equal to the force generated based on the air pressure difference, such that a deformable member can at least maintain an initial compressed state. When the restoring force is equal to the force exerted by the air pressure difference, the deformable member can maintain the initial compressed state. When the restoring force is less than the force exerted by the air pressure difference, the force exerted by the air pressure difference can further compress the deformable member. Thus, the slider 222 slides under the action of the air thrust for causing the piston rod 221 to abut against the lock catch 2131.

[0189] For each embodiment of the dust collection method, reference is made to the implementations of the first aspect, and the technical effects produced refer to the technical effects of the implementations of the first aspect, which will not be repeated herein.

[0190] As shown in FIGS. 26 to 31, an embodiment of the present disclosure provides a cleaning device, including vacuum cleaner 310 and dust collection base station 1000. The vacuum cleaner 310 includes dust collection compartment 311, and the dust collection compartment 311 is configured to collect debris. The dust collection base station 1000 is configured to be detachably connected to the dust collection compartment 311 to remove the debris collected in the dust collection compartment. At least one of the vacuum cleaner 310 and the dust collection base station 1000 is provided with negative pressure device 30, and the negative pressure device 30 is configured to reduce an internal air pressure of the dust collection base station 1000. The dust collection compartment 311 includes main body 3111, first cover 12, and fixing member 3112. The first cover 12 is connected to the main body 3111, for opening the main body 3111 or closing the main body 3111. The fixing member 3112 is configured to fix the first cover 12 relative to the main body 3111, such that the main body 3111 and the first cover 12 enclose a closed space, and to release the first cover 12 when the internal air pressure of the dust collection base station 1000 meets a preset condition to open the closed space.

[0191] In the cleaning device provided by the embodiment of the present disclosure, when the cleaning device needs to perform a dust collection operation to transfer debris stored in the dust collection compartment 311, the dust collection compartment 311 of the vacuum cleaner 310 is connected to the dust collection base station 1000. The negative pressure device 30 is activated to reduce the internal air pressure of the dust collection base station 1000. At this time, the fixing member 3112 of the dust collection compartment 311 can respond to an air pressure change. When the internal air pressure of the dust collection base station 1000, for example, the air pressure at a position of the dust collection base station 1000 adjacent to the fixing member 3112 meets the preset condition, the fixing member 3112 releases the first cover 12. After the first cover 12 is opened, the negative pressure inside the dust collection base station 1000 forms a suction force, which sucks the debris collected in the main body 3111 of the dust collection compartment 311 into the dust collection base station 1000, completing the removal of the debris.

[0192] It should be noted that the negative pressure device 30 in the embodiment of the present disclosure may be only configured to provide a suction air flow into the dust collection base station 1000 and the dust collection compartment 311 with the first cover 12 open, or may be configured to provide a suction air flow to a surface to be cleaned (such as the ground) when the vacuum cleaner 310 performs a cleaning operation. Specifically, when the dust collection base station 1000 is provided with the negative pressure device 30, the negative pressure device 30 may be only configured to provide a suction air flow into the dust collection base station 1000 and the dust collection compartment 311 with the first cover 12 open to reduce the internal air pressure of the dust collection base station 1000 and / or provide an air flow to remove the debris. When the dust collection base station 1000 is not provided with the negative pressure device 30 and only the vacuum cleaner 310 is provided with the negative pressure device 30, the negative pressure device 30 is configured to provide a suction air flow into the dust collection base station 1000 and the dust collection compartment 311 with the first cover 12 open, and to provide a suction air flow to the surface to be cleaned through air path switching.

[0193] In the cleaning device provided by the embodiment of the present disclosure, firstly, through the interaction between 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. This design avoids residue of the debris caused by an insufficient air pressure or an excessive dust discharge impact caused by a sudden air pressure rise, and ensures a stable and orderly dust discharge process. Secondly, no manual operation of the fixing member 3112 is required, and a negative pressure triggering mechanism realizes the automatic opening of the first cover 12. This design reduces manual intervention, making it particularly suited for scenarios such as homes and offices where manual maintenance of cleaning devices is undesirable, thereby lowering the barrier to use. Thirdly, the negative pressure environment not only triggers unlocking but also can continuously or intermittently provides a suction force to promote the rapid and thorough entry of the debris in the dust collection compartment 311 into the dust collection base station 1000. This design reduces the adhesion of the debris to the inner wall of the main body 3111, and avoids debris backflow, thereby improving the overall cleaning effect of the cleaning device and extending its service life. Fourthly, the negative pressure device 30 can be flexibly disposed in the vacuum cleaner 310 or the dust collection base station 1000 to adapt to different product design requirements.

[0194] In the cleaning device provided by the embodiment of the present disclosure, the mechanism of triggering the opening of the first cover 12 through the negative pressure can avoid the problem of opening failure or delay caused by component wear and jamming in conventional mechanical triggering. The negative pressure device 30 can stably regulate the internal air pressure of the dust collection base station 1000, and the fixing member 3112 can be accurately released only when the air pressure meets the preset condition. This design ensures consistent action response each time the first cover 12 is opened, with no risk of mechanical jamming. Meanwhile, the negative pressure environment can buffer the impact force when the first cover 12 is opened, avoiding deformation or damage of the cover due to uneven instantaneous force. This design significantly improves the stability of the opening of the first cover 12 and extends the service life of the first cover, thereby ensuring the long-term reliable operation of the cleaning device.

[0195] As shown in FIGS. 26 to 31, in some optional implementations, when the air pressure difference between the internal space of the dust collection compartment 311 and the dust collection base station ranges from 3 kPa to 25 kPa, 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 compartment 311 and the dust collection base station 1000 is limited to 3 kPa to 25 kPa can balance unlocking reliability and dust discharge stability. The lower limit of 3 kPa can ensure that the fixing member 3112 obtains a sufficient driving force, avoiding unlocking failure caused by an insufficient negative pressure, and ensuring that each dust discharge is started smoothly. The upper limit of 25 kPa can prevent an excessive negative pressure from causing an excessive impact when the first cover 12 is opened, thereby avoiding deformation of the cover or splashing of the debris, and reducing the energy consumption of the negative pressure device 30. This range accurately matches the action threshold of the fixing member 3112 and the debris transfer demand. Thus, it reduces residue of the debris in the dust collection compartment 311 through negative pressure suction and ensures the service life of the first cover 12 and the fixing member 3112, thereby improving the overall operational stability of the cleaning device.

[0196] As shown in FIGS. 26 to 31, in some optional implementations, when the air pressure difference between the internal space of the dust collection compartment 311 and the dust collection base station ranges from 7 kPa to 25 kPa, the fixing member 3112 releases the first cover 12.

[0197] In this technical solution, limiting the triggering range of the air pressure difference between the dust collection compartment 311 and the dust collection base station 1000 to 7 kPa to 25 kPa is a preferred technical solution, and its technical effect is more in line with actual use needs. From the perspective of unlocking reliability, the higher lower limit of 7 kPa can further avoid the problems of jamming and failure of the fixing member 3112 to unlock due to an insufficient driving force under a low air pressure difference. Even if there is a slight air pressure fluctuation in the negative pressure device 30, it can still ensure that the fixing member 3112 obtains a stable driving force, thereby achieving accurate unlocking of the first cover 12 and avoiding dust discharge interruption caused by unlocking failure. From the perspective of dust discharge stability and component protection, the upper limit of 25 kPa can effectively control the negative pressure intensity, thereby preventing a severe impact caused by an excessive air pressure difference when the first cover 12 is opened. This design avoids deformation of the cover and damage to the sealing structure, and reduces splashing of the debris or its adhesion to the inner wall of the dust collection base station under a strong air flow, thereby ensuring an orderly dust discharge process. In addition, this range can balance negative pressure suction and energy consumption. The negative pressure above 7 kPa can provide sufficient suction to completely remove the residual debris in the dust collection compartment 311 (especially viscous or fine debris). The negative pressure below 25 kPa can avoid excessive work of the negative pressure device 30, and reduce energy consumption, taking into account the cleaning effect and use cost, and significantly improving the comprehensive performance of the cleaning device.

[0198] In some optional implementations, the cleaning device further includes an air pressure sensor. The air pressure sensor is disposed in the dust collection base station 1000. The fixing member 3112 is configured to release the first cover 12 when the internal air pressure of the dust collection base station 1000 is less than 95 kPa.

[0199] In this technical solution, by configuring the air pressure sensor in the dust collection base station 1000 and designing the fixing member 3112 to release the first cover 12 when the internal air pressure of the dust collection base station 1000 is less than 95 kPa, accurate interaction between air pressure detection and unlocking action is achieved. The air pressure sensor can directly monitor the internal air pressure of the dust collection base station in real-time, avoiding errors that may occur when relying on indirect air pressure difference estimation. Thus, it ensures that unlocking is triggered only when the air pressure meets the preset condition, and prevents the first cover 12 from being opened too early or too late due to incorrect air pressure determination. The setting of the 95 kPa threshold not only ensures that a sufficient negative pressure is formed in the dust collection base station to generate a suction force (to remove debris in the dust collection compartment 311) but also avoids excessive energy consumption of the device or overloading of components due to an excessively low negative pressure. This design takes into account unlocking reliability, debris removal effect, and equipment operation safety, improving the overall control accuracy and stability of the cleaning device.

[0200] In some optional implementations, the main body 3111 is cylindrical, and a diameter of the main body 3111 is greater than or equal to 7 cm.

[0201] In this technical solution, the main body 3111 has a cylindrical shape and a diameter greater than or equal to 7 cm, which provides key support for improving the dust discharge effect structurally. The cylindrical shape makes the internal space of the dust collection compartment 311 regular, such that the debris can slide down smoothly along the cylinder wall, avoiding debris accumulation dead corners that are easy to form in irregular structures. This design of the diameter greater than or equal to 7 cm expands the cross-section of the internal channel. On the one hand, this design reduces the risk of blockage when the debris is discharged, and especially reduces the probability of larger particles of debris getting stuck in the channel. On the other hand, combined with negative pressure suction, it can form a more stable air flow field, ensuring that the negative pressure can uniformly act on the entire dust collection space to drive the residual debris to be discharged efficiently, and reduces local air flow turbulence and suction attenuation caused by narrow channels, thereby significantly improving the thoroughness and efficiency of dust discharge.

[0202] In some optional implementations, a dust collection chamber is formed inside the main body 3111, and the dust collection chamber penetrates through the main body 3111 along a height direction of the main body.

[0203] In this technical solution, the dust collection chamber penetrates through the main body 3111 along the height direction of the main body to form an unobstructed longitudinal channel, laying a key structural foundation for improving the dust discharge effect. The through design makes the internal space of the dust collection chamber free of transverse obstacles, such that the debris can directly fall along the height direction. This design avoids debris accumulation dead corners (such as residues at the junction of the bottom and side walls of the chamber and in intermediate partition areas) formed by segmented chambers and obstacles in non-through structures. When combined with negative pressure suction, the unobstructed through channel allows the air flow to pass through the dust collection chamber more smoothly, forming a stable longitudinal air flow field, which can directly drive debris in all areas of the chamber to move quickly to the dust discharge port. This design greatly reduces the adhesion of debris to the wall of the dust collection chamber or being stuck at the obstacle structure, significantly improving the thoroughness and efficiency of dust discharge, and ensuring no residue in the dust collection chamber after each dust discharge.

[0204] In some optional implementations, the fixing member 3112 is disposed on an outer side of the main body 3111.

[0205] In this technical solution, disposing the fixing member 3112 on the outer side of the main body 3111 can completely avoid it occupying the internal space of the dust collection chamber, eliminating the obstruction of the fixing member to the channel of the dust collection chamber from the source. Compared with a built-in design, the external configuration keeps the dust collection chamber with a complete and unobstructed internal channel. When the debris moves along the channel under the action of negative pressure, it will not be stuck or accumulated due to the obstruction of the fixing member, especially avoiding the problem of a fine or long debris getting stuck in the gap between the member and the wall of the dust collection chamber. Meanwhile, the unobstructed channel allows the air flow to be smoother, and the negative pressure suction can uniformly act on the entire area of the dust collection chamber, further improving the efficiency of debris discharge and ensuring a smooth and residue-free dust discharge process.

[0206] In the present disclosure, the terms “first”, “second”, and “third” are used only for descriptive purposes, and should be understood as indicating or implying relative importance; and the term “a plurality of” refers to two or more, unless otherwise specifically defined. The terms such as “mounted to”, “connected with”, “connected to”, or “fixed to” should be comprehended in a broad sense. For example, “connected to” may be comprehended as being fixedly connected, detachably connected, or integrally connected; “connected with” may be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art may understand specific meanings of the above terms in the present disclosure based on specific situations.

[0207] In the description of the present disclosure, it needs to be understood the orientation or positional relationships indicated by terms, such as “upper”, “lower”, “left”, “right”, “front”, and “rear”, are based on the orientation or positional relationship shown in the accompanying drawings, are merely for facilitating the description of the present disclosure and simplifying the description, rather than indicating or implying that an apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore shall not be interpreted as limiting the present disclosure.

[0208] In the description of this specification, the description with reference to the terms such as “one embodiment”, “some embodiments”, and “a specific embodiment” means that the specific features, structures, materials, or characteristics described with reference to the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable way in any one or more embodiments or examples.

[0209] The above are merely preferred examples of the present disclosure, and are not intended to limit the present disclosure, and various changes and modifications can be made by those skilled in the art to the present disclosure. Any modifications, equivalents, improvements, and the like, made within the spirit and principle of the present disclosure shall all fall within the protection scope of the present disclosure.

Examples

Embodiment Construction

[0052]In the following description, numerous specific details are provided to offer a more thorough understanding of the technical solution disclosed in the present disclosure. However, it will be apparent to those skilled in the art that the technical solution of the present disclosure may be practiced without one or more of these specific details.

[0053]It should be noted that the terminology used herein is merely for describing specific embodiments and is not intended to limit the exemplary embodiments of the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular form is also intended to include the plural form. Furthermore, it is to be understood that when the terms “comprises” and / or “includes” are used in this specification, they specify 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, elem...

CROSS-REFERENCE TO THE RELATED APPLICATIONS

[0001] This application is the continuation application of International Application No. PCT / CN2025 / 132925, filed on Nov. 6, 2025, which is based upon and claims priority to Chinese Patent Application No. 202411253258.2, filed on Sep. 6, 2024; Chinese Patent Application No. 202411295821.2, filed on Sep. 14, 2024; Chinese Patent Application No. 202411398263.2, filed on Sep. 30, 2024; and Chinese Patent Application No. 202510422754.4, filed on Sep. 30, 2024; the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure relates to the field of cleaning devices, and in particular to a dust collection base station, a dust cup for a dust collector, a cleaning device, and a dust collection method.BACKGROUND

[0003] A cleaning device, typically including a dust collector and a dust collection base station, is a commonly used household appliance for removing dust, dirt, and other debris from the surfaces of objects such as floors, carpets, and furniture.

[0004] The dust cup of the dust collector can hold a certain amount of debris. When the dust collector is placed on the dust collection base station, the dust discharge cover located at the bottom of the dust cup can be opened, allowing the debris accumulated in the dust cup to fall into the dust collection base station.

[0005] However, when the dust collector is placed on the dust collection base station, if the dust discharge cover is opened at an inaccurate time, the normal operation of the cleaning device may be adversely affected.SUMMARY

[0006] The “CONTENT OF THE APPLICATION” section introduces a series of simplified concepts, which will be further elaborated in the “SPECIFIC IMPLEMENTATIONS” section. The “CONTENT OF THE APPLICATION” section of the present disclosure is not intended to limit the key and necessary technical features of the claimed technical solution or define the scope of protection of the claimed technical solution.

[0007] In view of this, a first aspect of an embodiment of the present disclosure proposes a dust collection base station, including: a base station body and a cover opening structure, where an end of the base station body is provided with an accommodating groove; the accommodating groove is configured to accommodate an end of a dust cup; and the cover opening structure is configured to trigger unlocking of a dust discharge cover of the dust cup when an air pressure in the accommodating groove is within a preset negative pressure range.

[0008] A second aspect of the embodiment of the present disclosure proposes a dust cup for a dust collector, applicable to the dust collection base station according to the above technical solution, and including: a cup body, the dust discharge cover and a locking member, where the dust discharge cover is connected to the cup body; the locking member is connected to the cup body; and the locking member is configured to lock the dust discharge cover, and to unlock the dust discharge cover when triggered by the cover opening structure.

[0009] A third aspect of the embodiment of the present disclosure proposes a cleaning device, including: a dust collection base station and a dust collector, where the dust collector includes a dust cup; the dust collection base station is the dust collection base station according to any of the above technical solutions; and / or the dust cup is the dust cup according to any of the above technical solutions.

[0010] A fourth aspect of the embodiment of the present disclosure proposes a dust collection method, applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, where the dust collection method includes: generating a negative pressure within a preset range to act on a first device and cause the first device to act, and causing the first device to act on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0011] A fifth aspect of the embodiment of the present disclosure proposes a cleaning device, including: a dust collector, a dust collection base station, and a negative pressure device, where the dust collector includes a dust cup and a first cover; the first cover is configured to close or open an internal space of the dust cup; the dust cup is provided with a lock catch; the lock catch is configured to lock the first cover; the cleaning device further includes an unlocking member; and the negative pressure device is configured to generate a negative pressure inside the dust collection base station, such that the unlocking member acts on the lock catch under the action of an air pressure difference to unlock the first cover.

[0012] A sixth aspect of the embodiment of the present disclosure proposes a dust collection method, applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, where the dust collection method includes: generating a negative pressure to act on a first device and cause the first device to act, and causing the first device to act on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0013] A seventh aspect of the embodiment of the present disclosure proposes a cleaning device, including: a vacuum cleaner, where the vacuum cleaner includes a dust collection compartment, and the dust collection compartment is configured to collect debris; and a dust collection base station, where the dust collection base station is configured to be detachably connected to the dust collection compartment to remove the debris collected in the dust collection compartment; at least one of the vacuum cleaner and the dust collection base station is provided with a negative pressure device; the negative pressure device is configured to reduce an internal air pressure of the dust collection base station; and the dust collection compartment includes a main body, a first cover connected to the main body for opening the main body or closing the main body, and a fixing member configured to fix the first cover to the main body and release the first cover when the internal air pressure meets a preset condition.

[0014] The above description is merely a summary of the technical solutions of the present disclosure. In order to allow the technical means of the present disclosure to be understood clearly and implemented in accordance with the content of the specification and allow the above and other objectives, features, and advantages of the present disclosure to be obviously and easily understood, specific implementations of the present disclosure are described below.BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the following preferred implementations, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are provided merely to illustrate the preferred implementations, rather than to limit the present disclosure. Throughout the drawings, the same reference numerals represent the same components. In the drawings:

[0016] FIG. 1 is a schematic view of a cleaning device provided by an embodiment of the present disclosure;

[0017] FIG. 2 is a schematic view of a dust cup provided by an embodiment of the present disclosure;

[0018] FIG. 3 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure;

[0019] FIG. 4 is a partial schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0020] FIG. 5 is a schematic view of a cover opening structure provided by an embodiment of the present disclosure;

[0021] FIG. 6 is a cross-sectional view of the cover opening structure provided by an embodiment of the present disclosure;

[0022] FIG. 7 is a partial schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0023] FIG. 8 is a cross-sectional view of the dust collection base station provided by an embodiment of the present disclosure;

[0024] FIG. 9 is a schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0025] FIG. 10 is a schematic view of the dust collection base station provided by an embodiment of the present disclosure;

[0026] FIG. 11 is a schematic view of a cup body provided by an embodiment of the present disclosure;

[0027] FIG. 12 is a schematic view of a locking member provided by an embodiment of the present disclosure;

[0028] FIG. 13 is a schematic view of a hook portion and a dust discharge cover provided by an embodiment of the present disclosure in an engaged state;

[0029] FIG. 14 is a schematic view of a dust collector and the dust collection base station in a separated state in an embodiment of the present disclosure;

[0030] FIG. 15 is an exploded view of the dust collector in an embodiment of the present disclosure;

[0031] FIG. 16 is a schematic view of a partial structure shown in FIG. 15;

[0032] FIG. 17 is an exploded view of the dust collection base station in an embodiment of the present disclosure;

[0033] FIG. 18 is an enlarged view of A shown in FIG. 17;

[0034] FIG. 19 is a schematic view of an unlocking member and a sealing cover in an embodiment of the present disclosure;

[0035] FIG. 20 is a schematic view of a dust cup in an embodiment of the present disclosure;

[0036] FIG. 21 is a bottom view of the dust cup in an embodiment of the present disclosure;

[0037] FIG. 22 is a top view of a second cover in an embodiment of the present disclosure;

[0038] FIG. 23 is a top view of a dust collection bin in an embodiment of the present disclosure;

[0039] FIG. 24 is a cross-sectional view of a cleaning device in an embodiment of the present disclosure;

[0040] FIG. 25 is a cross-sectional view of a cleaning device in another embodiment of the present disclosure;

[0041] FIG. 26 is a schematic view of a cleaning device provided by yet another embodiment of the present disclosure;

[0042] FIG. 27 is an exploded view of the cleaning device provided by yet another embodiment of the present disclosure;

[0043] FIG. 28 is an exploded view of the cleaning device provided by yet another embodiment of the present disclosure from another perspective;

[0044] FIG. 29 is a partial enlarged view of A shown in FIG. 28;

[0045] FIG. 30 is a schematic view of a fixing member of the cleaning device provided by yet another embodiment of the present disclosure; and

[0046] FIG. 31 is a schematic view of the cleaning device provided by yet another embodiment of the present disclosure from another perspective.Reference Numerals

[0047] 1000. dust collection base station; 1100. first suction assembly; 1101. dust bag; 100. housing; 110. base station body; 110a. accommodating groove; 110b. through hole; 110c. dust dropping port; 110d. suction port; 110e. suction channel; 110f. dust bag mounting chamber; 120. cover opening structure; 121. trigger rod; 122. fixing bracket; 123. first elastic member; 120a. air chamber; 1211. rod body; 1212. connecting disc; 1221. bump; 1221a. inclined surface; 1231. annular connecting portion; 1232. annular elastic portion; 123a. annular groove; 124. outer cover; 124a. vent 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 body; 2122. second wear-resistant member; 2131. lock catch; 21311. rotatable connecting portion; 21312. pressing unlocking portion; 21313. hook portion; 2132. third elastic member; 21314. hook body; 21315. first wear-resistant member; and 21313a. first locking surface;

[0048] 113. third air duct; 12. first cover; 14. second cover; 141. push rod; 142. bushing; 15. air duct diverter; 151. first blocking portion; 152. second blocking portion; 16. separator; 161. sleeve; 162. cyclone cone; 163. filter element; 17. handle; 18. suction hose; 19. suction head; 101. dust discharge port; 102. air inlet; 103. first opening; 104. second opening; 105. dust outlet; 106. mounting groove; and 107. air outlet hole;

[0049] 21. dust collection bin; 2101. dust discharge channel; 22. unlocking member; 221. piston rod; 222. slider; 223. deformable member; 23. upright post; 24. sealing cover; 26. front housing; 27. rear housing; 201. dust collection port; 202. socket; 203. air outlet; 204. vent hole; 205. access opening; and 206. third opening;

[0050] 310. vacuum cleaner; 311. dust collection compartment; 3111. body; and 3112. fixing member; and

[0051] 30. negative pressure device.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] In the following description, numerous specific details are provided to offer a more thorough understanding of the technical solution disclosed in the present disclosure. However, it will be apparent to those skilled in the art that the technical solution of the present disclosure may be practiced without one or more of these specific details.

[0053] It should be noted that the terminology used herein is merely for describing specific embodiments and is not intended to limit the exemplary embodiments of the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular form is also intended to include the plural form. Furthermore, it is to be understood that when the terms “comprises” and / or “includes” are used in this specification, they specify 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.

[0054] Exemplary embodiments according to the present disclosure will now be described in greater detail with reference to the drawings. Nevertheless, these exemplary embodiments may be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. It is to be understood that these embodiments are provided to render the present disclosure thorough and complete, and to fully convey the concept of the exemplary embodiments to those of ordinary skill in the art.

[0055] FIG. 1 is a schematic view of a cleaning device provided by an embodiment of the present disclosure. As shown in FIG. 1, the cleaning device includes dust collection base station 1000 and dust collector 2000. The dust collector 2000 is detachably connected to the dust collection base station 1000. When it is necessary to use the dust collector 2000 for cleaning, the dust collector 2000 is detached from the dust collection base station 1000. After use, the dust collector 2000 is placed on the dust collection base station 1000, and the dust collection base station 1000 is used to collect debris stored in the dust collector 2000.

[0056] As shown in FIG. 1, the dust collector 2000 includes dust cup 210. FIG. 2 is a schematic view of a dust cup provided by an embodiment of the present disclosure. As shown in FIG. 2, the dust cup 210 includes cup body 211, dust discharge cover 212, and locking member 213. The dust discharge cover 212 is connected to the cup body 211, for example, via fixed connection, rotational connection, snap-fit connection, rotary connection, hinged connection, magnetic connection, or other methods. The locking member 213 is connected to the cup body 211, and the locking member 213 is configured to lock the dust discharge cover 212, and to unlock the dust discharge cover 212 when triggered by cover opening structure 120 (as shown in FIG. 3).

[0057] The dust discharge cover 212 can be connected to a bottom of the cup body 211 through rotating portion 2110. Exemplarily, the rotating portion 2110 can be a hinge, a rotating shaft, a torsion spring, etc.

[0058] The dust cup 210 is configured to store debris sucked in during operation of the dust collector 2000. When the dust collector 2000 is placed on the dust collection base station 1000, a bottom of the dust cup 210 is inserted into the dust collection base station 1000. The dust collection base station 1000 is capable of collecting the debris in the dust cup 210, and the debris in the dust cup 210 can fall into the dust collection base station 1000 by opening the dust discharge cover 212 of the dust cup 210.

[0059] As shown in FIGS. 2 to 6 and FIG. 12, the cover opening structure 120 includes trigger rod 121 and a driving mechanism. The trigger rod 121 is configured to move under the action of the driving mechanism to trigger the dust discharge cover 212 of the dust cup 210 to be opened. When the dust discharge cover 212 is in a closed state, it can be locked by the locking member 213. After the locking member 213 is triggered, it can release the dust discharge cover 212 to unlock the dust discharge cover 212. When the dust cup 210 is placed on base station body 110, the driving mechanism drives the trigger rod 121 to move, and the trigger rod 121 can move into accommodating groove 110a, contact the locking member 213, and trigger the locking member 213 to release the dust discharge cover 212, thereby unlocking the dust discharge cover 212.

[0060] FIG. 3 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 3, the dust collection base station includes the base station body 110 and the cover opening structure 120. The accommodating groove 110a is formed at an end of the base station body 110, and the accommodating groove 110a is configured to accommodate an end of the dust cup 210. The cover opening structure 120 is configured to trigger the unlocking of the dust discharge cover 212 of the dust cup 210 when an air pressure in the accommodating groove 110a is within a preset negative pressure range.

[0061] In the embodiment of the present disclosure, the preset negative pressure range may be a pressure range representing absolute pressure. For example, the preset negative pressure range may be 80 kPa to 100 kPa. It may also be a pressure range representing relative pressure. For example, the preset negative pressure range may be −20 kPa to 0. That is, the preset negative pressure range is from a pressure 20 kPa lower than a current actual ambient air pressure to the current actual ambient air pressure. For another example, the preset negative pressure range may be −20 kPa to −1 kPa. That is, the preset negative pressure range is from a pressure 20 kPa lower than the actual ambient air pressure in an external environment where the current dust collection base station 1000 is located to a pressure 1 kPa lower than the current actual ambient air pressure. The upper and lower limits of the preset negative pressure range can be set according to specific usage scenarios and requirements.

[0062] By forming the accommodating groove 110a at the end of the base station body 110, when the dust collector 2000 is placed on the dust collection base station 1000, the end of the dust cup 210 of the dust collector 2000 can be inserted into the accommodating groove 110a. By configuring the cover opening structure 120, the cover opening structure 120 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. During unlocking, since the air pressure in the accommodating groove 110a is within the preset negative pressure range, the air pressure difference between the dust cup 210 and the accommodating groove 110a is within an acceptable range. In addition, 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. Thus, 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. This design reduces or even avoids the residue of debris in the dust cup, and avoids impairing the normal operation of the cleaning device due to excessive impact generated when the debris enters the accommodating groove 110a.

[0063] Long-term research has found that when the pressure difference between the air pressure in the accommodating groove 110a and the air pressure in the dust cup 210 when the dust discharge cover 212 is in the closed state is relatively large, suddenly releasing the dust discharge cover 212 can achieve a better effect in collecting the debris stored in the dust cup 210 by using the dust collection base station 1000, including the clearing rate of debris, the clearing effect of special debris (such as hair, wet fine dust), and the cleaning effect of the dust cup 210 in extreme cases (such as a lot of debris in the dust cup 210 or compressed and adhered debris in the dust cup 210) is improved.

[0064] Specifically, compared with the operation of providing suction air flow to the dust cup 210 to discharge dust after the dust discharge cover 212 is released, the embodiment of the present disclosure can first provide suction air flow into the accommodating groove 110a. When the air pressure in the accommodating groove 110a is 3 kPa to 25 kPa lower than the air pressure in the dust cup 210, that is, when the above preset negative pressure range is −3 kPa to −25 kPa, the dust collection base station 1000 has a better effect in clearing the debris collected in the dust cup 210. Furthermore, when the air pressure in the accommodating groove 110a is 7 kPa to 25 kPa lower than the air pressure in the dust cup 210, that is, when the above preset negative pressure range is −7 kPa to −25 kPa, the dust collection base station 1000 has a significantly improved cleaning effect on the debris collected in the dust cup 210. Especially when dealing with special debris and when the debris is fully accumulated, the dust collection base station 1000 can still effectively clear the debris collected in the dust cup 210.

[0065] As shown in FIG. 3, the dust collection base station may further include housing 100, and the housing 100 is connected outside the base station body 110. The housing 100 and the base station body 110 may be detachably connected to facilitate clearing the debris collected by the base station body 110.

[0066] FIG. 4 is a partial schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 4, a side wall of the accommodating groove 110a is provided with through hole 110b. The cover opening structure 120 is located at the side wall of the accommodating groove 110a, and the cover opening structure 120 includes the trigger rod 121 and the driving mechanism.

[0067] The trigger rod 121 is inserted into the through hole 110b. The trigger rod 121 is configured to move into the accommodating groove 110a along the through hole 110b under the action of the driving mechanism to trigger the dust discharge cover 212 of the dust cup 210 to be opened.

[0068] When the dust discharge cover 212 is in the closed state, it is locked by the locking member 213. After the locking member 213 is triggered, it can release the dust discharge cover 212 to unlock the dust discharge cover 212. When the dust cup 210 is placed on the base station body 110, the locking member 213 of the dust cup 210 is located in the accommodating groove 110a and is directly opposite to the trigger rod 121. In this example, the driving mechanism drives the trigger rod 121 to move, such that the trigger rod 121 moves into the accommodating groove 110a, contacts the locking member 213, and triggers the locking member 213 to release the dust discharge cover 212, thereby unlocking the dust discharge cover 212.

[0069] Before the driving mechanism drives the trigger rod 121 to move into the accommodating groove 110a, an end of the trigger rod 121 adjacent to an inner side of the accommodating groove 110a may be flush with an inner wall of the accommodating groove 110a or located in the through hole 110b, that is, not protruding out of the through hole 110b. This can prevent the trigger rod 121 from affecting the placement of a lower end of the dust cup 210 into the accommodating groove 110a before unlocking.

[0070] FIG. 5 is a schematic view of a cover opening structure provided by an embodiment of the present disclosure. As shown in FIG. 5, in the cover opening structure, the driving mechanism includes fixing bracket 122 and first elastic member 123. The fixing bracket 122 is hermetically engaged with an outer side wall of the base station body 110, and the first elastic member 123 connects the trigger rod 121 to the fixing bracket 122. The fixing bracket 122, the first elastic member 123 and the base station body 110 form air chamber 120a, and the air chamber 120a communicates with the accommodating groove 110a.

[0071] Since the air chamber 120a communicates with the accommodating groove 110a, the air pressure in the air chamber 120a is the same as the air pressure in the accommodating groove 110a. After the air pressure in the accommodating groove 110a drops, there is an air pressure difference between the interior and exterior of the air chamber 120a, and the force exerted by the air pressure difference between the interior and exterior of the air chamber 120a acts on the first elastic member 123. When the air pressure in the accommodating groove 110a drops to a certain value, for example, drops to the preset negative pressure range, the force exerted by the air pressure difference between the interior and exterior of the air chamber 120a exceeds the elastic force of the first elastic member 123. This exceeding is sufficient to deform the first elastic member 123 toward an inner side of the air chamber 120a, thereby driving the trigger rod 121 to move. After the air pressure in the air chamber 120a is restored, the trigger rod 121 can be reset under the elastic force of the first elastic member 123. Since no equipment such as an electric motor is needed to provide power, no additional energy consumption is required.

[0072] The forces affecting the movement of the trigger rod 121 here may mainly include the elastic force of the first elastic member 123 and the force acting on the first elastic member 123 and generated by the air pressure difference between the interior and exterior of the air chamber 120a. The air pressure outside the air chamber 120a may refer to the air pressure on a side of the fixing bracket 122 away from the outer side wall of the base station body 110, for example, the air pressure in the environment. The elastic force of the first elastic member 123 is adjustable through the first elastic member 123, for example, through the material, shape, size, etc. of the first elastic member 123, such that the elastic force generated by the first elastic member 123 is determined. The force exerted by the air pressure difference is also adjustable, for example, through the air pressure in the accommodating groove 110a, the area of the air acting on the inner side of the first elastic member 123, the area of the air acting on an outer side of the first elastic member 123, etc., such that the force exerted by the air pressure difference is also determined. It can be seen that by adjusting the elastic force of the first elastic member 123, the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range.

[0073] As an example, the first elastic member 123 may be a rubber member.

[0074] FIG. 6 is a cross-sectional view of a cover opening structure provided by an embodiment of the present disclosure. As shown in FIG. 6, the first elastic member 123 is annular. An outer edge of the first elastic member 123 is connected to the fixing bracket 122, and an inner edge of the first elastic member 123 is connected to the trigger rod 121.

[0075] When the annular first elastic member 123 drives the trigger rod 121 to move, the forces exerted by each part of the first elastic member 123 on the trigger rod 121 are symmetrical. This makes the direction of the force exerted by the first elastic member 123 on the trigger rod 121 more stable, always along or approximately along the length direction of the trigger rod 121, thereby making the movement of the trigger rod 121 more stable.

[0076] As an example, the trigger rod 121 includes rod body 1211 and connecting disc 1212. One side of the connecting disc 1212 is concave, and one end of the rod body 1211 is connected to the concave side of the connecting disc 1212. An edge of the connecting disc 1212 is connected to the inner edge of the first elastic member 123.

[0077] As shown in FIG. 6, the first elastic member 123 includes annular connecting portion 1231 and annular elastic portion 1232. The annular connecting portion 1231 is connected to the fixing bracket 122, and 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.

[0078] The outward arching of the annular elastic portion 1232 helps the annular elastic portion 1232 maintain its elasticity. During the gradual increase of the negative pressure in the air chamber 120a (that is, the gradual decrease of the pressure drop), the outwardly arched annular elastic portion 1232 is more likely to maintain its shape unchanged. When the negative pressure increases beyond a certain critical value, it will suddenly deform inward, driving the trigger rod 121 to move, such that the trigger rod 121 can generate sufficient impact force to push the locking member 213.

[0079] As shown in FIG. 6, a joint between the annular connecting portion 1231 and the annular elastic portion 1232 forms annular groove 123a, and the annular groove 123a is located on a side of the first elastic member 123 away from the base station body 110.

[0080] When the first elastic member 123 is deformed, two sides of the annular groove 123a can separate relative to each other, allowing the first elastic member 123 to generate a large deformation and thereby increasing the stroke of the trigger rod 121.

[0081] In some optional implementations, as shown in FIG. 4, the side wall of the accommodating groove 110a is further provided with dust dropping port 110c. The dust dropping port 110c is located on a side of the through hole 110b away from an opening of the accommodating groove 110a, and the dust dropping port 110c communicates with the air chamber 120a.

[0082] In the above implementation, by configuring the dust dropping port 110c, the debris (such as dust) in the air chamber 120a can pass through the dust dropping port 110c, thereby avoiding the accumulation of debris in the air chamber 120a, and further ensuring the normal movement of the driving structure, such that the dust discharge cover 212 can be smoothly unlocked to realize self-cleaning and dust collection.

[0083] In some optional implementations, as shown in FIG. 5, a side of the fixing bracket 122 adjacent to the base station body 110 is provided with bump 1221, and the bump 1221 is at least partially located in the dust dropping port 110c. A side of the bump 1221 adjacent to the trigger rod 121 forms inclined surface 1221a.

[0084] The dust dropping port 110c can play a role in communicating the air chamber 120a with the accommodating groove 110a. In addition, during the use of the dust collection base station 1000, some dust and other debris may enter the air chamber 120a, and the accumulation of the debris in the air chamber 120a may affect the normal movement of the driving mechanism. By configuring the bump 1221, the debris in the air chamber 120a can fall into the accommodating groove 110a via the inclined surface 1221a of the bump 1221.

[0085] As shown in FIG. 5, the driving mechanism further includes outer cover 124, and the outer cover 124 covers the fixing bracket 122 externally. The outer cover 124 is connected to the base station body 110, and the outer cover 124 is provided with vent hole 124a.

[0086] A chamber is formed between the outer cover 124 and the fixing bracket 122, and the chamber is separated from the air chamber 120a. The chamber communicates with the external environment through the vent hole 124a, such that the air pressure in the chamber is the same as the ambient air pressure. The outer cover 124 can provide protection, especially to protect the first elastic member 123, avoiding damage to the first elastic member 123, which leads to communication between the chamber formed between the outer cover 124 and the fixing bracket 122 and the air chamber 120a.

[0087] In some examples, as shown in FIG. 6, the cover opening structure 120 further includes second elastic member 127, and the second elastic member 127 is sleeved outside the trigger rod 121. The second elastic member 127 respectively abuts against the trigger rod 121 and the base station body 110 to exert a force on the trigger rod 121 for causing the trigger rod 121 to move out of the accommodating groove 110a.

[0088] Exemplarily, the second elastic member 127 may be a spring.

[0089] After the trigger rod 121 triggers the unlocking of the dust discharge cover 212, the air pressure in the accommodating groove 110a begins to return to the ambient air pressure. When the air pressure inside and outside the air chamber 120a is the same, the trigger rod 121 can be reset under the elastic forces of the first elastic member 123 and the second elastic member 127.

[0090] Since the elastic force generated by the second elastic member 127 hinders the movement of the trigger rod 121 into the accommodating groove 110a, the elastic force of the second elastic member 127 also affects the timing when the cover opening structure 120 triggers the unlocking of the dust discharge cover 212. Under the condition that the driving mechanism remains unchanged, a greater elastic force of the second elastic member 127 indicates a lower air pressure in the accommodating groove 110a when the cover opening structure 120 triggers the unlocking of the dust discharge cover 212. In contrast, a smaller elastic force of the second elastic member 127 indicates a higher air pressure in the accommodating groove 110a when the cover opening structure 120 triggers the unlocking of the dust discharge cover 212. As mentioned earlier, by adjusting the elastic force of the first elastic member 123, the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range. However, limited by some factors, such as the elasticity of the material itself, the adjustable range of the elastic force of the first elastic member 123 is limited, which may not be sufficient to meet the requirement that the dust discharge cover 212 is unlocked only when the pressure in the accommodating groove 110a reaches the preset negative pressure range. By further configuring the second elastic member 127, the elastic force of one or both of the first elastic member 123 and the second elastic member 127 is adjustable, such that the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range.

[0091] FIG. 7 is a partial schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 7, in other possible implementations, the driving mechanism may also include air pressure sensor 125 and electric push rod 126. The air pressure sensor 125 is at least partially located in the accommodating groove 110a, and the air pressure sensor 125 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 the electric push rod 126 is also connected to the trigger rod 121.

[0092] The air pressure sensor 125 can directly detect the air pressure in the accommodating groove 110a. When the air pressure sensor 125 detects that the air pressure in the accommodating groove 110a is within the preset negative pressure range, the electric push rod 126 drives the trigger rod 121 to move, thereby triggering the unlocking of the dust discharge cover 212.

[0093] FIG. 8 is a cross-sectional view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 8, the dust collection base station further includes first suction assembly 1100, and the first suction assembly 1100 communicates with the accommodating groove 110a.

[0094] The first suction assembly 1100 is configured to suck in air from the accommodating groove 110a to reduce the air pressure in the accommodating groove 110a, such that the air pressure in the accommodating groove 110a drops to the preset negative pressure range, thereby triggering the action of the cover opening structure 120 to unlock the dust discharge cover 212.

[0095] Exemplarily, the first suction assembly 1100 may include a vacuum pump.

[0096] In some examples, the first suction assembly 1100 may be located in the base station body 110.

[0097] In other possible implementations, the first suction assembly 1100 may also be located outside the base station body 110, connected to the base station body 110 through a duct, and communicate with the accommodating groove 110a.

[0098] FIG. 9 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 9, in the dust collection base station, suction port 110d is further formed at the end of the base station body 110. The suction port 110d communicates with the accommodating groove 110a, and the suction port 110d is configured to be connected to the dust collector 2000.

[0099] When the dust collector 2000 is placed on the base station body 110, the suction port 110d communicates with the dust collector 2000, and the air in the accommodating groove 110a is sucked in by using the suction function of the dust collector 2000, such that the air pressure in the accommodating groove 110a is reduced. Directly using the suction capacity of the dust collector 2000 to reduce the air pressure in the accommodating groove 110a eliminates the need for an additional device for suction, thereby reducing the cost of the dust collection base station 1000.

[0100] FIG. 10 is a schematic view of a dust collection base station provided by an embodiment of the present disclosure. As shown in FIG. 10, the base station body 110 is internally provided with dust bag mounting chamber 110f. A top end of the dust bag mounting chamber 110f communicates with the accommodating groove 110a. Dust bag 1101 is disposed in the dust bag mounting chamber 110f. During dust collection, after the dust discharge cover 212 is opened, the debris in the dust cup 210 falls into the dust bag 1101 through the accommodating groove 110a.

[0101] As shown in FIG. 9, suction channel 110e is formed on an outer side of the base station body 110, and the suction channel 110e communicates with the suction port 110d. The suction channel 110e extends to a bottom end of the dust bag mounting chamber 110f, and the suction channel 110e communicates with the bottom end of the dust bag mounting chamber 110f. The air flow direction during suction is schematically shown by arrows in FIG. 9.

[0102] Since the suction channel 110e communicates with the bottom end of the dust bag mounting chamber 110f, during the suction process, inside the base station body 110, the air flow moves from the accommodating groove 110a to the top end of the dust bag mounting chamber 110f, and then to the bottom end of the dust bag mounting chamber 110f. That is, the air flow direction is from top to bottom. Such an air flow direction helps the dust bag 1101 expand, facilitating the entry of the debris from the dust cup 210 into the dust bag 1101.

[0103] In addition, an opening of the dust bag 1101 fits closely against an inner wall of the dust bag mounting chamber 110f. This is to make the debris enter the dust bag 1101 as much as possible, and avoid the debris falling into the bottom end of the dust bag mounting chamber 110f from a gap between the dust bag 1101 and the inner wall of the dust bag mounting chamber 110f. Communicating the suction channel 110e with the bottom end of the dust bag mounting chamber 110f can prevent debris from being sucked into the suction channel 110e.

[0104] FIG. 11 is a schematic view of a cup body provided by an embodiment of the present disclosure. As shown in FIG. 11, the cup body 211 includes main body portion 2111 and air duct portion 2112, and the air duct portion 2112 is connected to an outer side of the main body portion 2111. The air duct portion 2112 includes first air duct 2112a and second air duct 2112b. One end of the first air duct 2112a communicates with an inner side of the main body portion 2111, and the other end of the first air duct 2112a is configured to communicate with an air inlet duct of the dust collector. The second air duct 2112b extends along a height direction of the main body portion 2111. One end of the second air duct 2112b adjacent to the dust discharge cover 212 is configured to communicate with the accommodating groove 110a, and the other end of the second air duct 2112b away from the dust discharge cover 212 is configured to communicate with the second suction assembly of the dust collector.

[0105] The first air duct 2112a admits air in the cleaning operation of the dust collector 2000 to suck debris into the dust cup 210 of the dust collector 2000, while the second air duct 2112b does not participate in the operation. During dust collection, the bottom of the dust cup 210 is placed in the accommodating groove 110a, and a suction assembly in the dust collector 2000 sucks in air through the second air duct 2112b to form the negative pressure in the accommodating groove 110a. The configuration of the second air duct 2112b facilitates the communication between the accommodating groove 110a and the dust collector 2000, such that no suction assembly needs to be disposed in the dust collection base station 1000. The dust collector 2000 further includes a separator and a switchable diverter valve, and the separator may be located in the dust cup 210. An inlet of the separator communicates with the first air duct 2112a, and an air flow outlet of the separator communicates with the second suction assembly. The debris separated by the separator accumulates at an end of the dust cup 210 facing the dust discharge cover 212. The switchable diverter valve may be disposed between the air flow outlet of the separator and the second suction assembly. The diverter valve may have a first state and a second state. In the first state, the diverter valve closes the second air duct 2112b, and the air flow outlet of the separator communicates with the second suction assembly, enabling the dust collector 2000 to perform a cleaning operation and suck debris into the dust cup 210. In the second state, the diverter valve opens the second air duct 2112b and separates the air flow outlet of the separator from the second suction assembly. To collect dust from the dust cup 210, the diverter valve is in the second state.

[0106] FIG. 12 is a schematic view of a locking member provided by an embodiment of the present disclosure. As shown in FIG. 12, the locking member 213 includes lock catch 2131, and the lock catch 2131 includes rotatable connecting portion 21311, pressing unlocking portion 21312, and hook portion 21313. The rotatable connecting portion 21311 is connected between the pressing unlocking portion 21312 and the hook portion 21313. The rotatable connecting portion 21311 is rotatably connected to the cup body 211. The hook portion 21313 is located at an opening of the cup body 211, and the hook portion 21313 is configured to be engaged with an edge of the dust discharge cover 212.

[0107] The rotatable connecting portion 21311 is located at a central portion of the lock catch 2131, and the pressing unlocking portion 21312 and the hook portion 21313 are located on two sides of the rotatable connecting portion 21311, respectively. Pressing the pressing unlocking portion 21312 causes the lock catch 2131 to rotate, such that the hook portion 21313 is separated from the dust discharge cover 212, thereby unlocking the dust discharge cover 212. The lock catch 2131 has a simple structure and is easy to design. Moreover, the structure of the lock catch 2131 is similar to a lever, so the length of the pressing unlocking portion 21312 and the hook portion 21313 is adjusted to enable the dust discharge cover 212 to be opened when the pressure in the accommodating groove 110a is within the preset negative pressure range.

[0108] As shown in FIG. 12, the locking member 213 further includes 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 configured to exert a force for causing the pressing unlocking portion 21312 to rotate away from the cup body 211.

[0109] Exemplarily, the third elastic member 2132 may be a spring.

[0110] Pressing the pressing unlocking portion 21312 to rotate the lock catch 2131 requires overcoming at least the elastic force of the third elastic member 2132. The third elastic member 2132 can prevent the lock catch 2131 from being triggered too easily. In addition, the elastic force of the third elastic member 2132 is similar to the elastic force of the second elastic member 127, both hindering the triggering of the unlocking of the dust discharge cover 212. Therefore, like the second elastic member 127, by adjusting the elastic force of the third elastic member 2132, the timing of opening the dust discharge cover 212 can also be changed. Thus, the driving mechanism drives the trigger rod 121 to trigger the unlocking of the dust discharge cover 212 only when the pressure in the accommodating groove 110a reaches the required range.

[0111] As shown in FIG. 12, the hook portion 21313 includes hook body 21314 and first wear-resistant member 21315. The first wear-resistant member 21315 is connected to the hook body 21314, and the first wear-resistant member 21315 is configured to be in contact with the dust discharge cover 212.

[0112] FIG. 13 is a schematic view of a hook portion and a dust discharge cover provided by an embodiment of the present disclosure in an engaged state. As shown in FIG. 13, the dust discharge cover 212 includes dust discharge cover body 2121 and second wear-resistant member 2122. The second wear-resistant member 2122 is connected to the dust discharge cover body 2121. The second wear-resistant member 2122 is configured to be in contact with the hook portion 21313. When the dust discharge cover 212 is in the closed state, the first wear-resistant member 21315 is in contact with the second wear-resistant member 2122.

[0113] The contact between the first wear-resistant member 21315 and the second wear-resistant member 2122 can reduce the wear between the hook portion 21313 and the dust discharge cover 212, and avoid the difficulty in opening the lock catch 2131.

[0114] As shown in FIG. 13, angle α between first locking surface 21313a of the hook portion 21313 and second locking surface 212a of the dust discharge cover 212 is 0° to 10°. The first locking surface 21313a is a surface of the hook portion 21313 in contact with the dust discharge cover 212, and the second locking surface 212a is a surface of the dust discharge cover 212 in contact with the hook portion 21313.

[0115] The relatively small angle between the two contacting surfaces of the hook portion 21313 and the dust discharge cover 212 reduces the frictional resistance between the first locking surface 21313a and the second locking surface 212a during the opening of the dust discharge cover 212, thereby reducing wear and facilitating the opening of the dust discharge cover 212. In addition, by setting the angle α between the first locking surface 21313a of the hook portion 21313 and the second locking surface 212a of the dust discharge cover 212 to be 0° to 10°, the hook portion 21313 is stably engaged with the dust discharge cover 212. For example, the hook portion 21313 and the dust discharge cover 212 are stably engaged when the air pressure in the accommodating groove 110a does not reach the preset negative pressure range, thereby improving the stability of dust collection by the dust collection base station 1000.

[0116] An embodiment of the present disclosure further provides a cleaning device. The cleaning device includes dust collection base station 1000 and dust collector 2000, and the dust collector 2000 includes dust cup 210. The dust collection base station 1000 may be any of the aforementioned dust collection base stations, and the dust cup 210 may be any of the aforementioned dust cups.

[0117] The cover opening structure 120 of the base station body 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. Therefore, 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. In addition, 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. 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. This design reduces or even avoids the residue of debris in the dust cup, and also avoids impairing the normal operation of the cleaning device due to excessive impact generated when the debris enters the accommodating groove.

[0118] An embodiment of the present disclosure further provides a dust collection method. The dust collection method is applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, and includes following steps.

[0119] A negative pressure is generated to act on a first device and cause the first device to act, and the first device acts on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0120] In some optional implementations, the cover may be the aforementioned dust discharge cover 212, configured to selectively close or open the internal space of the dust cup 210. The first device may be the whole or part of the aforementioned cover opening structure 120, and the second device may be the whole or part of the aforementioned locking member 213. The dust collection device may include a negative pressure device, and the negative pressure device may include at least one of the aforementioned first suction assembly and the second suction assembly. The negative pressure device is configured to generate the negative pressure, and a pressure difference generated by the negative pressure can make the first device move under the action of the air pressure difference and act on the second device to release the cover.

[0121] In some optional implementations, the dust collection device may include or be externally connected to any of the aforementioned dust collection base stations 1000. The dust collection base station 1000 may include base station body 110, and a top of base station body 110 is provided with accommodating groove 110a for the bottom of the dust cup 210 to extend into. By configuring the dust collector 2000, the dust collection base station 1000, and the negative pressure device to cooperate with each other, the dust collector 2000 can suck debris on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device can suck the debris in the dust cup 210 into the base station body 110. The negative pressure device forms an air pressure difference between the air pressure inside base station body 110 and the air pressure of the external environment, which can generate a thrust to drive the cover opening structure 120 to slide toward the internal space of base station body 110 until it pushes the locking member 213, such that locking member 213 releases the dust discharge cover 212. The user can automatically open the dust discharge cover 212 without manually operating the locking member 213. Since there is also an air pressure difference between the air pressure inside the base station body 110 and the air pressure inside the dust cup 210, an instantaneous impact force is generated at the moment the dust discharge cover 212 is opened to suck the debris in the dust cup 210 into the base station body 110, thereby reducing the residue of the debris in the dust cup 210 and achieving more thorough and efficient cleaning of the dust cup 210. After the dust discharge cover 212 is opened, the negative pressure environment inside the base station body 110 can still continuously generate a suction force on the debris in the dust cup 210 to prevent debris backflow. Therefore, the dust collection base station 1000 achieves a better effect in collecting the debris from the dust collector 2000, making the cleaning device more convenient to use.

[0122] In some optional implementations, the dust cup 210 selectively communicates with a first chamber configured for dust collection, and the first chamber generates a negative pressure through the negative pressure device.

[0123] The step that the first device acts on the second device to release the cover includes a step that the negative pressure device generates a negative pressure in the first chamber, such that the first device moves under the action of the air pressure difference to push the second device to release the cover.

[0124] In some optional implementations, the first chamber may be a chamber formed inside the aforementioned base station body 110. In use, the dust cup 210 selectively communicates with the first chamber. That is, the communication state between the dust cup 210 and the first chamber is selectable. In one state, the dust cup 210 communicates with the first chamber, and in another state, the dust cup 210 does not communicate with the first chamber. Specifically, the selective communication can be achieved by configuring the first device at the joint between dust cup 210 and the first chamber, that is, the whole or part of the aforementioned cover opening structure 120. The cover opening structure 120 can be in various forms, such as a push rod, a button, a slider, a sliding rod, a lever, a cantilever, a piston rod, a spring-loaded telescopic rod, or a selector switch.

[0125] In some optional implementations, a second chamber is disposed outside the first chamber. The first device is at least partially located in the second chamber, and the second chamber communicates with the external environment of the first chamber, such that an air pressure difference is generated between the first chamber and the second chamber.

[0126] In some optional implementations, the first chamber may be a chamber formed by the aforementioned base station body 110, and the second chamber may be the aforementioned air chamber 120a. The outer cover 124 is connected to the side wall of the base station body 110, the through hole 110b is disposed on the side wall of the base station body 110, and the vent hole 124a opposite to the through hole 110b is disposed in the outer cover 124. The outer cover 124 forms an accommodating chamber. The vent hole 124a communicates the accommodating chamber with the external environment of the base station body 110 and is configured to generate an air pressure difference between the accommodating chamber and the internal space of the base station body 110. The cover opening structure 120 passes through the through hole 110b, and the cover opening structure 120 is partially located in the accommodating chamber. The accommodating chamber communicates with the internal space of the base station body 110 through the through hole 110b, and the accommodating chamber communicates with the external environment through the vent hole 124a. When the air pressure inside the base station body 110 is much lower than the air pressure of the external environment, air in the external environment can enter the accommodating chamber of the outer cover 124 from the vent hole 124a to push the cover opening structure 120.

[0127] In some optional implementations, the first device includes a moving portion, and the moving portion is provided with a deformable portion. The step that the first device moves under the action of the air pressure difference to push the second device to release the cover includes: the deformable portion exerts a restoring force opposite to a moving direction of the moving portion on the moving portion. During the movement of the moving portion, the restoring force is less than or equal to a force generated based on the air pressure difference.

[0128] In some optional implementations, the moving portion may include the aforementioned rod body 1211 and connecting disc 1212, and the deformable portion may include the aforementioned second elastic member 127. One end of the rod body 1211 passes through the through hole 110b, and the other end of the rod body 1211 is connected to the connecting disc 1212. The connecting disc 1212 is placed inside the outer cover 124. The second elastic member 127 is sleeved on an outer periphery of the rod body 1211. The second elastic member 127 is configured to exert a force pointing to an initial position on the connecting disc 1212. When the second elastic member 127 is in an initial compressed state, the connecting disc 1212 abuts against an inner wall of outer cover 124 to close the vent hole 124a. When the air pressure difference between the external environment and the internal space of 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 compressed state, and the connecting disc 1212 slides under the action of the air thrust, thereby making the rod body 1211 abut against the locking member 213.

[0129] In some optional implementations, during the movement of the moving portion, the restoring force is less than or equal to the force generated based on the air pressure difference, such that a deformable member can at least maintain an initial compressed state. When the restoring force is equal to the force exerted by the air pressure difference, the deformable member can maintain the initial compressed state. When the restoring force is less than the force exerted by the air pressure difference, the force exerted by the air pressure difference can further compress the deformable member. Thus, the connecting disc 1212 slides under the action of the air thrust for causing the rod body 1211 to abut against the locking member 213.

[0130] For each embodiment of the dust collection method, reference is made to the aforementioned implementations, and the technical effects produced refer to the technical effects of the aforementioned implementations, which will not be repeated herein.

[0131] Please refer to FIGS. 1, 13 to 18, and 24 to 25 collectively. An embodiment of the present disclosure provides a cleaning device, including dust collector 2000, dust collection base station 1000, and negative pressure device 30. The dust collector 2000 includes dust cup 210 and first cover 12. The first cover 12 is configured to close or open an internal space of the dust cup 210. The dust cup 210 is provided with lock catch 2131, and the lock catch 2131 is configured to lock the first cover 12.

[0132] The cleaning device further includes unlocking member 22. The negative pressure device 30 is configured to generate a negative pressure inside the dust collection base station 1000, such that the unlocking member 22 acts on the lock catch 2131 under the action of an air pressure difference to unlock the first cover 12.

[0133] In the above implementation, the first cover 12 can close or open the internal space of the dust cup 210 in various ways. For example, the first cover 12 can selectively close the internal space of the dust cup 210 via fixed connection, rotational connection, snap-fit connection, rotary connection, hinged connection, magnetic connection or other methods. The lock catch 2131 is disposed on the dust cup 210 through fixed connection, rotational connection, snap connection, rotary connection, magnetic connection or other connection methods. The lock catch 2131 is configured to lock the first cover 12. For example, the lock catch 2131 locks the first cover 12 via contact methods such as clamping, buckling, hinging or non-contact methods such as magnetic connection. The cleaning device further includes the unlocking member 22, and the unlocking member 22 can be disposed at multiple positions of the cleaning device, such as the dust collection base station 1000 or the dust collector 2000. The unlocking member 22 can be in various forms, such as a push rod, a button, a slider, a sliding rod, a lever, a cantilever, a piston rod, a spring-loaded telescopic rod or a selector switch. The negative pressure device 30 is configured to generate the negative pressure, for example, in the dust collection base station 1000, such that the unlocking member 22 acts on the lock catch 2131 under the action of the air pressure difference to unlock the first cover 12. The negative pressure device 30 can be various devices that generate a suction or pressure, or generate a pressure difference by changing an air flow speed. The unlocking member 22 can slide, roll, or rotate or perform other actions under the action of the pressure difference and act on the lock catch 2131 to unlock the first cover 12. For example, the unlocking member 22 can act on the lock catch 2131 through a force. After the first cover 12 is unlocked, the debris 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 catch 2131, which realize simple and efficient self-cleaning of the cleaning device.

[0134] In some embodiments, please refer to FIGS. 13 to 18 and 24 to 25 collectively. Dust discharge port 101 is disposed at the bottom of the dust cup 210. One end of the first cover 12 is hinged to one side of the bottom of the dust cup 210. Lock catch 2131 is rotatably connected to the other side of the bottom of the dust cup 210. The lock catch 2131 is configured to lock the other end of the first cover 12.

[0135] The dust collection base station 1000 includes dust collection bin 21 and unlocking member 22. Dust collection port 201 is disposed at a top of the dust collection bin 21 for the bottom of the dust cup 210 to extend into, and socket 202 is disposed on a side wall of the dust collection bin 21 for the sliding assembly of the unlocking member 22.

[0136] The negative pressure device 30 is configured to generate a negative pressure inside the dust collection bin 21, allowing the unlocking member 22 to move under the action of an air pressure difference to push the lock catch 2131 to disengage from the first cover 12. In use, the movement of the unlocking member 22 under the action of the air pressure difference may be sliding, translating, or telescoping, etc.

[0137] In the prior art, since the debris in the dust cup can only fall into the dust collection base station under the action of its own weight, viscous debris or compressed debris is easy to adhere to the inner wall of the dust cup. After the dust collector is used multiple times, the residual debris in the dust cup will gradually accumulate, making it more difficult to fall, so the user needs to manually clear the debris in the dust cup.

[0138] In the cleaning device provided by the embodiment of the present disclosure, the dust collector 2000, the dust collection base station 1000, and the negative pressure device 30 cooperate with each other. The dust collector 2000 can suck debris on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device 30 can suck debris in the dust cup 210 into the dust collection bin 21. The negative pressure device 30 forms an air pressure difference between the air pressure inside the dust collection bin 21 and the air pressure of the external environment. Thus, a thrust is generated at the socket 202 to drive the unlocking member 22 to slide toward the internal space of the dust collection bin 21 until it pushes the lock catch 2131, such that the lock catch 2131 releases the first cover 12. The user can automatically open the dust discharge port 101 of the first cover 12 without manually operating the lock catch 2131. Since the air pressure inside the dust collection bin 21 and the air pressure inside the dust cup 210 also form an air pressure difference, an instantaneous impact force is generated at the moment the first cover 12 opens the dust discharge port 101 to suck the debris in the dust cup 210 into the dust collection bin 21, thereby reducing the residue of debris in the dust cup 210 and achieving more thorough and efficient cleaning of the dust cup 210. After the first cover 12 opens the dust discharge port 101, the negative pressure environment inside the dust collection bin 21 can still continuously generate a suction force on the debris in the dust cup 210 to prevent debris backflow. The dust collection base station 1000 achieves a better effect in collecting debris from the dust collector 2000, thereby enabling more convenient use of the cleaning device.

[0139] In use, the negative pressure device 30 may be a fan. When the cleaning device operates in a dust suction mode, the dust collector 2000 is operated alone, while the negative pressure device 30 is not operated to suck debris on the ground into the dust cup 210. When the cleaning device operates in a dust discharge mode, the dust collector 2000 is placed on the dust collection base station 1000, and the negative pressure device 30 does work to suck debris in the dust cup 210 into the dust collection bin 21.

[0140] Specifically, the capacity of the dust collection bin 21 is larger than that of the dust cup 210. After the dust collector 2000 is used continuously for multiple times, the dust collection bin 21 only requires clearing once to continue collecting debris from the dust cup 210, thereby saving the user's time and effort spent clearing the debris of the entire cleaning device.

[0141] In use, the dust collector 2000 is further provided with handle 17, suction hose 18, and suction head 19. The handle 17 and the suction head 19 are respectively disposed on two ends of the suction hose 18. A top of the dust cup 210 is connected to the handle 17. A side wall of the dust cup 210 is connected to a side wall of the suction hose 18. The suction hose 18 is provided with dust outlet 105 communicating with the internal space of the dust cup 210. When the cleaning device operates in the dust suction mode, the suction head 19 sucks debris on the ground or a worktop, and the debris is transported from the dust outlet 105 to the dust cup 210 through the suction hose 18.

[0142] In an embodiment, please refer to FIGS. 20 and 21 collectively. Third air duct 113, second air duct 2112b, and first air duct 2112a are formed inside the dust cup 210. The dust discharge port 101 and the first air duct 2112a communicate with the third air duct 113. The second air duct 2112b is isolated from the third air duct 113. Air inlet 102 communicating with the second air duct 2112b is further disposed at the bottom of the dust cup 210. The air inlet 102 is configured to be connected to the top of the dust collection bin 21.

[0143] When the cleaning device operates in the dust suction mode, a first air flow generated by the negative pressure device 30 is conveyed through the air duct including the third air duct 113 and the first air duct 2112a.

[0144] When the cleaning device operates in the dust discharge mode, a second air flow generated by the negative pressure device 30 is conveyed through the air duct including the second air duct 2112b.

[0145] In use, the third air duct 113 is isolated from the second air duct 2112b during the dust discharge mode, which avoids mutual influence between the dust suction mode and the dust discharge mode of the cleaning device, thereby ensuring more accurate flow directions of the air and debris.

[0146] It should be noted that the first air flow may be an air flow circulating in the cleaning device when the cleaning device operates in the dust suction mode, and the second air flow may be an air flow circulating in the cleaning device when the cleaning device operates in the dust discharge mode. For example, the first air flow may refer to air flowing from the external environment to the internal space of the dust cup 210 through the third air duct 113 and the first air duct 2112a when the negative pressure device 30 generates the negative pressure, and the external debris and dirt are collected into the internal space of the dust cup 210 by relying on the first air flow. The second air flow may refer to the air circulated from the internal space of the dust cup 210 through the second air duct 2112b and generated by the negative pressure device 30, and the debris and dirt collected in the dust cup 210 are discharged into the dust collection bin 21 through the second air flow.

[0147] Specifically, the dust cup 210 has a cylindrical structure. The third air duct 113 and the second air duct 2112b 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. The first air duct 2112a communicates with the dust outlet 105 of the suction hose 18.

[0148] In an embodiment, please refer to FIGS. 15, 16, and 20 to 22 collectively. Second cover 14 is disposed at the top of the dust cup 210. The second cover 14 is provided with first opening 103 communicating with the third air duct 113 and second opening 104 communicating with the second air duct 2112b. Air duct diverter 15 is rotatably connected to a side of the second cover 14 away from the dust discharge port 101. The air duct diverter 15 is configured to selectively open the first opening 103 and the second opening 104. That is, the air duct diverter 15 is configured to open one of the first opening 103 and the second opening 104 and close the other.

[0149] In use, the dust discharge port 101 and the first opening 103 respectively communicate with two opposite ends of the third air duct 113, and the air inlet 102 and the second opening 104 respectively communicate with two opposite ends of the second air duct 2112b. By configuring the air duct diverter 15 to control the connection state of the third air duct 113 and the second air duct 2112b, the air sucked by the dust collector 2000 has different flow directions to perform the dust suction mode and the dust discharge mode as needed.

[0150] In an embodiment, please refer to FIGS. 15, 16, and 20 to 22 collectively. The air duct diverter 15 includes first blocking portion 151 and second blocking portion 152 connected to each other. The first blocking portion 151 corresponds to the first opening 103, and the second blocking portion 152 corresponds to the second opening 104. That is, the first blocking portion 151 is configured to selectively open the first opening 103, and the second blocking portion 152 is configured to selectively open the second opening 104.

[0151] In use, the second cover 14 is snap-fitted or bolted to the top of the dust cup 210. Two opposite sides of the first blocking portion 151 are rotatably connected to the second cover 14. An elastic member is connected between the first blocking portion 151 and the second cover 14. The elastic member can elastically deform to drive the first blocking portion 151 and the second blocking portion 152 to swing in opposite directions. When the cleaning device operates in the dust suction mode, the first opening 103 is opened and the second opening 104 is closed, and only the third air duct 113 is connected. When the cleaning device operates in the dust discharge mode, the first opening 103 is closed and the second opening 104 is opened, and only the second air duct 2112b is connected. In use, the elastic member may be a spring, an elastic pin, etc.

[0152] In an embodiment, please refer to FIGS. 15, 16, and 20 to 23 collectively. Push rod 141 is slidably disposed in the second air duct 2112b. Air outlet 203 is further disposed at the top of the dust collection bin 21, and upright post 23 is disposed at the air outlet 203. One end of the push rod 141 is hinged to the air duct diverter 15, and the other end of the push rod 141 is configured to abut against the upright post 23.

[0153] Bushing 142 is disposed on an inner wall of the second air duct 2112b. The push rod 141 is nested inside the bushing 142, and the bushing 142 is configured to prevent the push rod 141 from shifting during sliding.

[0154] In use, the length direction of the push rod 141 is parallel to the extending direction of the second air duct 2112b. The bushing 142 is disposed on the inner peripheral wall of the second air duct 2112b, and the push rod 141 passes through a central portion of the bushing 142. The bushing 142 is configured to prevent the push rod 141 from shifting during sliding, such that the push rod 141 can drive the air duct diverter 15 to swing more stably and smoothly.

[0155] In use, please refer to FIGS. 17, 18, and 24 collectively. Rear housing 27 is connected to the side wall of the dust collection bin 21 to jointly enclose dust discharge channel 2101. Third opening 206 is further disposed on the side wall of the dust collection bin 21. The air outlet 203 and the third opening 206 communicate with the dust discharge channel 2101.

[0156] Specifically, when the bottom of the dust cup 210 is extended into the top of the dust collection bin 21, the first cover 12 does not open the dust discharge port 101, and the dust collection port 201 is in a closed state. The air outlet 203 communicates with the air inlet 102. The upright post 23 passes through the air inlet 102 and abuts against the push rod 141. The push rod 141 drives the air duct diverter 15 to swing until the first opening 103 is closed and the second opening 104 is opened, and the second air duct 2112b is in a connected state. After the negative pressure device 30 is started, the air in the dust collection bin 21 enters the dust discharge channel 2101 from 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 dust cup 210 through the second opening 104. Thus, a negative pressure environment is formed inside the dust collection bin 21.

[0157] In an embodiment, please refer to FIGS. 15, 16, and 20 to 22 collectively. Separator 16 is disposed at the first opening 103 on a side of the second cover 14 facing the dust discharge port 101, and the separator 16 is configured to filter the first air flow when the dust suction mode is performed.

[0158] The separator 16 includes sleeve 161, cyclone cone 162, and filter element 163. The sleeve 161 is connected to the second cover 14. The cyclone cone 162 is rotatably connected inside the sleeve 161 and points to the dust collection port 201. The filter element 163 is sleeved on the sleeve 161. The cyclone cone 162 is configured to guide the first air flow entering the third air duct 113 from the first air duct 2112a to be discharged from the first opening 103. This design reduces the turbulence of the air flow in the third air duct 113, improves the efficiency of the dust collector 2000, and reduces the noise of the dust collector 2000.

[0159] In use, the separator 16 is configured to filter the debris and air entering the third air duct 113 from the first air duct 2112a, such that the debris is retained in the third air duct 113 and the air flows out of the third air duct 113 from the first opening 103. This design prevents the debris sucked into the dust cup 210 by the dust collector 2000 from being re-discharged into the external environment, thereby improving the cleaning effect of the dust collector 2000.

[0160] In an embodiment, please refer to FIGS. 15 and 16. Mounting groove 106 is formed on a side wall of the dust cup 210 for mounting the lock catch 2131.

[0161] In use, the lock catch 2131 is placed in the mounting groove 106, which prevents the user from accidentally touching the lock catch 2131 to open the first cover 12. A central portion of the lock catch 2131 is rotatably connected to two opposite side walls of the mounting groove 106, and an upper portion of the lock catch 2131 is far away from the dust discharge port 101. A reset member is connected between the upper portion of the lock catch 2131 and a bottom wall of the mounting groove 106. The reset member is configured to restore the lock catch 2131 to an initial position. A lower portion of the lock catch 2131 extends to the dust discharge port 101, and the lower portion of the lock catch 2131 is provided with a hook for locking the first cover 12. The reset member may be a spring, a rubber member, a plastic member, a stretch band, a gas spring, etc.

[0162] Specifically, when the unlocking member 22 does not abut against the lock catch 2131, the reset member is in an initial compressed state. When the unlocking member 22 abuts against an upper surface of the lock catch 2131 away from the reset member, the reset member is further compressed on the basis of the initial compressed state. This further compression drives the bottom of the lock catch 2131 to swing around the central portion of the lock catch 2131, such that the lower portion of the lock catch 2131 is disengaged from the first cover 12.

[0163] In an embodiment, please refer to FIGS. 17 to 19 collectively. Sealing cover 24 is connected to the side wall of the dust collection bin 21. The sealing cover 24 is provided with vent hole 204 opposite to the socket 202. The sealing cover 24 forms an accommodating chamber. The vent hole 204 communicates the accommodating chamber with the external environment of the dust collection bin 21, and is configured to generate the air pressure difference between the accommodating chamber and the dust collection bin 21. The unlocking member 22 passes through the socket 202, and the unlocking member 22 is partially located in the accommodating chamber.

[0164] In use, the accommodating chamber communicates with the internal space of the dust collection bin 21 through the socket 202, and the accommodating chamber communicates with the external environment through the vent hole 204. When the air pressure inside the dust collection bin 21 is much lower than the air pressure of the external environment, air in the external environment enters the accommodating chamber of the sealing cover 24 from the vent hole 204 to push the unlocking member 22.

[0165] In an embodiment, please refer to FIGS. 16 to 19 collectively. The unlocking member 22 includes sliding piston rod 221 and slider 222. One end of the piston rod 221 passes through the socket 202, and the other end of the piston rod 221 is connected to the slider 222. The slider 222 is placed inside the sealing cover 24. Deformable member 223 is sleeved on an outer periphery of the piston rod 221, and the deformable member 223 is configured to exert a force pointing to an initial position on the slider 222.

[0166] In use, when the dust collector 2000 is not placed on the dust collection base station 1000, the deformable member 223 is in the initial compressed state, and the slider 222 abuts against an inner wall of the sealing cover 24 to close the vent hole 204. After the dust collector 2000 is placed on the dust collection base station 1000 for a period of time, the air pressure difference between the external environment and the internal space of the dust collection bin 21 is greater than the elastic force of the deformable member 223. Thus, the deformable member 223 is further compressed on the basis of the initial compressed state, and the slider 222 slides under the action of air thrust, thereby making the piston rod 221 abut against the lock catch 2131. In use, the deformable member refers to a component that can undergo elastic deformation and recover, and its specific structure includes but is not limited to a spring, a rubber member, a stretch band, a gas spring, etc.

[0167] In an embodiment, the range of the air pressure difference is 3 kPa to 25 kPa. In the implementation of the present disclosure, a suitable negative pressure can help the unlocking member 22 act on the lock catch 2131 under the action of the air pressure difference to unlock the first cover 12, thereby enabling efficient self-cleaning of the dust cup 210. In use, the air pressure difference can be any value within the range of 3 kPa to 25 kPa, such as 3 kPa, 5 kPa, 8 kPa, 10 kPa, 12 kPa, 13 kPa, 14 kPa, 15 kPa, 16 kPa, 18 kPa, 20 kPa, 21 kPa, 22 kPa, 23 kPa, 24 kPa, and 25 kPa.

[0168] In an embodiment, the range of the air pressure difference is 7 kPa to 25 kPa. Limiting the air pressure difference of the cleaning device to 7 kPa to 25 kPa is a preferred solution adapted to its structural design and functional requirements. From the perspective of unlocking reliability, the lower limit of 7 kPa is higher than a low threshold design, which can provide a sufficient driving force for the unlocking member 22. That is, when a negative pressure is generated in the dust collection bin 21 and the air pressure difference is formed between the accommodating chamber of the sealing cover 24 and the dust collection bin 21, the slider 222 overcomes the elastic force of the deformable member 223 to push the piston rod 221 and stably act on the lock catch 2131 to unlock the first cover 12, avoiding unlocking jamming or failure caused by air pressure fluctuations. From the perspective of dust discharge stability and component protection, the upper limit of 25 kPa can avoid excessive negative pressure. That is, on the one hand, it prevents excessive impact at the moment the first cover 12 is opened, avoiding damage to the hinge of the cover or splashing of debris. On the other hand, combined with the isolation design of the third air duct 113 and the second air duct 2112b of the dust cup 210, it can form a stable air flow field. In the dust discharge mode, the second air flow flows smoothly along the second air duct 2112b to completely remove the debris in the dust cup 210, especially viscous debris, through negative pressure suction, and to avoid deviation of the air duct diverter 15 or jamming of the push rod 141 caused by strong air flow. Meanwhile, this range balances energy consumption and cleaning effect. That is, the negative pressure above 7 kPa meets the dust discharge suction demand, and the 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 operational stability and practicality of the cleaning device.

[0169] In an embodiment, please refer to FIGS. 17 and 18. The dust collection base station 1000 further includes dust bag 1101 and front housing 26. The dust bag 1101 is placed inside the dust collection bin 21, and the front housing 26 is detachably disposed on the side wall of the dust collection bin 21.

[0170] In use, the side wall of the dust collection bin 21 is further provided with access opening 205, and the access opening 205 is configured for the detachable mounting of the front housing 26. The dust bag 1101 is snap-fitted onto an inner peripheral wall of the dust collection bin 21. The debris falling into the dust collection bin 21 from the dust cup 210 is collected through the dust bag 1101, and the dust bag 1101 can be taken out from the access opening 205 by removing the front housing 26 to discharge the collected debris. Therefore, the dust collection base station 1000 is convenient to use.

[0171] In an embodiment, please refer to FIGS. 12 to 18 and 24 collectively. The dust collector 2000 is provided with the negative pressure device 30.

[0172] In use, the negative pressure device 30 is placed in the handle 17, and multiple air outlet holes 107 are disposed on an outer periphery of the handle 17. When the cleaning device operates in the dust suction mode, the negative pressure device 30 independently generates a negative pressure inside the dust cup 210. When the cleaning device operates in the dust discharge mode, the negative pressure device 30 generates a negative pressure inside the dust collection bin 21.

[0173] Specifically, when the cleaning device operates in the dust suction mode, the negative pressure device 30 does work. Air in the external environment flows into the suction hose 18 from the suction head 19, flows through the first air duct 2112a from the dust outlet 105 into the third air duct 113, and then flows through the separator 16 and out of the dust cup 210 from the first opening 103. Finally, the air flows out from the air outlet holes 107 of the handle 17.

[0174] Specifically, when the cleaning device operates in the dust discharge mode, the negative pressure device 30 does work. Air in the dust collection bin 21 flows through the dust discharge channel 2101 from the third opening 206, enters the air inlet 102 from the air outlet 203, and then flows through the second air duct 2112b and out of the dust cup 210 from the second opening 104. Finally, the air flows out from the air outlet holes 107 of the handle 17.

[0175] In an embodiment, please refer to FIGS. 13 to 18 and 25 collectively. Each of the dust collector 2000 and the dust collection base station 1000 is provided with one negative pressure device 30.

[0176] In use, there are two negative pressure devices 30. One of the two negative pressure devices 30 is placed in the handle 17 and the other is placed in the dust collection bin 21. When the cleaning device operates in the dust discharge mode, the two negative pressure devices 30 work simultaneously, thereby improving the cleaning efficiency of the dust collection base station 1000.

[0177] Specifically, when the cleaning device operates in the dust discharge mode, on the basis of the work done by the negative pressure device 30 in the handle 17, the negative pressure device 30 in the dust collection bin 21 further does work. This increases the rate at which air in the dust collection bin 21 flows into the dust discharge channel 2101 from the third opening 206, thereby shortening the time required for forming a negative pressure environment inside the dust collection bin 21.

[0178] The present disclosure provides a dust collection method, which is applied to a dust collection device including a dust cup and a cover for selectively closing the dust cup, and includes following steps.

[0179] A negative pressure is generated to act on a first device and cause the first device to act, and the first device acts on a second device to release the cover, such that the dust cup changes from a closed state to an open state.

[0180] In some optional implementations, the cover may be the first cover 12 in each embodiment of the first aspect, configured to selectively close or open the internal space of the dust cup 210. The first device may be the unlocking member 22 in each embodiment of the first aspect, and the second device may be the lock catch 2131 in each embodiment of the first aspect. The dust collection device may include the negative pressure device 30 as described in each embodiment of the first aspect, which is configured to generate a negative pressure. An air pressure difference generated by the negative pressure causes the first device to move under the action of the air pressure difference and act on the second device to release the cover.

[0181] In some optional implementations, the dust collection device may include or be externally connected to the dust collection base station 1000 in each embodiment of the first aspect. The dust collection base station 1000 may include dust collection bin 21, and a top of the dust collection bin 21 is provided with dust collection port 201 configured for the bottom of the dust cup 210 to extend into. The dust collector 2000, the dust collection base station 1000, and the negative pressure device 30 cooperate with each other. The dust collector 2000 can suck debris on the ground into the dust cup 210, and the dust collection base station 1000 and the negative pressure device 30 can suck debris in the dust cup 210 into the dust collection bin 21. The negative pressure device 30 forms an air pressure difference between the air pressure inside the dust collection bin 21 and the air pressure of the external environment. Thus, a thrust is generated to drive the unlocking member 22 to slide toward the internal space of the dust collection bin 21 until it pushes the lock catch 2131, such that the lock catch 2131 releases the first cover 12. The user can automatically open the dust discharge port 101 of the first cover 12 without manually operating the lock catch 2131. Since the air pressure inside the dust collection bin 21 and the air pressure inside the dust cup 210 also form an air pressure difference, an instantaneous impact force is generated at the moment the first cover 12 opens the dust discharge port 101 to suck the debris in the dust cup 210 into the dust collection bin 21, thereby reducing the residue of debris in the dust cup 210 and achieving more thorough and efficient cleaning of the dust cup 210. After the first cover 12 opens the dust discharge port 101, the negative pressure environment inside the dust collection bin 21 can still continuously generate a suction force on the debris in the dust cup 210 to prevent debris backflow. The dust collection base station 1000 achieves a better effect in collecting debris from the dust collector 2000, thereby enabling more convenient use of the cleaning device. In some optional implementations, the dust cup selectively communicates with a first chamber configured for dust collection, and the first chamber generates a negative pressure through the negative pressure device.

[0182] The step that the first device acts on the second device to release the cover includes a step that the negative pressure device generates a negative pressure in the first chamber, such that the first device moves under the action of the air pressure difference to push the second device to release the cover.

[0183] In some optional implementations, the first chamber may be a chamber formed inside the dust collection bin 21 described in the first aspect. In use, the dust cup selectively communicates with the first chamber. Specifically, the communication state between the dust cup and the first chamber is selectable. That is, the dust cup communicates with the first chamber in one state, and the dust cup does not communicate with the first chamber in another state. Specifically, the selective communication can be achieved by configuring the first device at the joint between the dust cup and the first chamber, that is, the unlocking member 22 described in the first aspect. The unlocking member 22 can be in various forms, such as a push rod, a button, a slider, a sliding rod, a lever, a cantilever, a piston rod, a spring-loaded telescopic rod or a selector switch.

[0184] In some optional implementations, a second chamber is disposed outside the first chamber. The first device is at least partially located in the second chamber, and the second chamber communicates with the external environment of the first chamber, such that an air pressure difference is generated between the first chamber and the second chamber.

[0185] In some optional implementations, the first chamber may be the chamber formed by the dust collection bin 21 described in the first aspect, and the second chamber may be the accommodating chamber formed by the sealing cover 24 described in the first aspect. Sealing cover 24 is connected to a side wall of the dust collection bin 21, and the side wall of the dust collection bin 21 is provided with socket 202. The sealing cover 24 is provided with vent hole 204 opposite to the socket 202. The sealing cover 24 forms the accommodating chamber, and the vent hole 204 communicates the accommodating chamber with the external environment of the dust collection bin 21, thereby generating an air pressure difference between the accommodating chamber and the dust collection bin 21. The unlocking member 22 passes through the socket 202, and the unlocking member 22 is partially located in the accommodating chamber. The accommodating chamber communicates with the internal space of the dust collection bin 21 through the socket 202, and the accommodating chamber communicates with the external environment through the vent hole 204. When the air pressure inside the dust collection bin 21 is much lower than the air pressure of the external environment, air in the external environment enters the accommodating chamber of the sealing cover 24 from the vent hole 204 to push the unlocking member 22.

[0186] In some optional implementations, the first device includes a moving portion, and the moving portion is provided with a deformable portion. The step that the first device moves under the action of the air pressure difference to push the second device to release the cover includes: the deformable portion exerts a restoring force opposite to a moving direction of the moving portion on the moving portion. During the movement of the moving portion, the restoring force is less than or equal to a force generated based on the air pressure difference.

[0187] In some optional implementations, the moving portion may include the piston rod 221 and the slider 222 in each embodiment of the first aspect, and the deformable portion may include the deformable member 223 in each embodiment of the first aspect. One end of the piston rod 221 passes through the socket 202, and the other end of the piston rod 221 is connected to the slider 222. The slider 222 is placed inside the sealing cover 24. Deformable member 223 is sleeved on an outer periphery of the piston rod 221, and the deformable member 223 is configured to exert a force pointing to an initial position on the slider 222. When the deformable member 223 is in an initial compressed state, the slider 222 abuts against an inner wall of the sealing cover 24 to close the vent hole 204. When the air pressure difference between the external environment and the internal space of the dust collection bin 21 is greater than the elastic force of the deformable member 223, the deformable member 223 is further compressed on the basis of the initial compressed state, and the slider 222 slides under the action of air thrust, thereby making the piston rod 221 abut against the lock catch 2131.

[0188] In some optional implementations, during the movement of the moving portion, the restoring force is less than or equal to the force generated based on the air pressure difference, such that a deformable member can at least maintain an initial compressed state. When the restoring force is equal to the force exerted by the air pressure difference, the deformable member can maintain the initial compressed state. When the restoring force is less than the force exerted by the air pressure difference, the force exerted by the air pressure difference can further compress the deformable member. Thus, the slider 222 slides under the action of the air thrust for causing the piston rod 221 to abut against the lock catch 2131.

[0189] For each embodiment of the dust collection method, reference is made to the implementations of the first aspect, and the technical effects produced refer to the technical effects of the implementations of the first aspect, which will not be repeated herein.

[0190] As shown in FIGS. 26 to 31, an embodiment of the present disclosure provides a cleaning device, including vacuum cleaner 310 and dust collection base station 1000. The vacuum cleaner 310 includes dust collection compartment 311, and the dust collection compartment 311 is configured to collect debris. The dust collection base station 1000 is configured to be detachably connected to the dust collection compartment 311 to remove the debris collected in the dust collection compartment. At least one of the vacuum cleaner 310 and the dust collection base station 1000 is provided with negative pressure device 30, and the negative pressure device 30 is configured to reduce an internal air pressure of the dust collection base station 1000. The dust collection compartment 311 includes main body 3111, first cover 12, and fixing member 3112. The first cover 12 is connected to the main body 3111, for opening the main body 3111 or closing the main body 3111. The fixing member 3112 is configured to fix the first cover 12 relative to the main body 3111, such that the main body 3111 and the first cover 12 enclose a closed space, and to release the first cover 12 when the internal air pressure of the dust collection base station 1000 meets a preset condition to open the closed space.

[0191] In the cleaning device provided by the embodiment of the present disclosure, when the cleaning device needs to perform a dust collection operation to transfer debris stored in the dust collection compartment 311, the dust collection compartment 311 of the vacuum cleaner 310 is connected to the dust collection base station 1000. The negative pressure device 30 is activated to reduce the internal air pressure of the dust collection base station 1000. At this time, the fixing member 3112 of the dust collection compartment 311 can respond to an air pressure change. When the internal air pressure of the dust collection base station 1000, for example, the air pressure at a position of the dust collection base station 1000 adjacent to the fixing member 3112 meets the preset condition, the fixing member 3112 releases the first cover 12. After the first cover 12 is opened, the negative pressure inside the dust collection base station 1000 forms a suction force, which sucks the debris collected in the main body 3111 of the dust collection compartment 311 into the dust collection base station 1000, completing the removal of the debris.

[0192] It should be noted that the negative pressure device 30 in the embodiment of the present disclosure may be only configured to provide a suction air flow into the dust collection base station 1000 and the dust collection compartment 311 with the first cover 12 open, or may be configured to provide a suction air flow to a surface to be cleaned (such as the ground) when the vacuum cleaner 310 performs a cleaning operation. Specifically, when the dust collection base station 1000 is provided with the negative pressure device 30, the negative pressure device 30 may be only configured to provide a suction air flow into the dust collection base station 1000 and the dust collection compartment 311 with the first cover 12 open to reduce the internal air pressure of the dust collection base station 1000 and / or provide an air flow to remove the debris. When the dust collection base station 1000 is not provided with the negative pressure device 30 and only the vacuum cleaner 310 is provided with the negative pressure device 30, the negative pressure device 30 is configured to provide a suction air flow into the dust collection base station 1000 and the dust collection compartment 311 with the first cover 12 open, and to provide a suction air flow to the surface to be cleaned through air path switching.

[0193] In the cleaning device provided by the embodiment of the present disclosure, firstly, through the interaction between 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. This design avoids residue of the debris caused by an insufficient air pressure or an excessive dust discharge impact caused by a sudden air pressure rise, and ensures a stable and orderly dust discharge process. Secondly, no manual operation of the fixing member 3112 is required, and a negative pressure triggering mechanism realizes the automatic opening of the first cover 12. This design reduces manual intervention, making it particularly suited for scenarios such as homes and offices where manual maintenance of cleaning devices is undesirable, thereby lowering the barrier to use. Thirdly, the negative pressure environment not only triggers unlocking but also can continuously or intermittently provides a suction force to promote the rapid and thorough entry of the debris in the dust collection compartment 311 into the dust collection base station 1000. This design reduces the adhesion of the debris to the inner wall of the main body 3111, and avoids debris backflow, thereby improving the overall cleaning effect of the cleaning device and extending its service life. Fourthly, the negative pressure device 30 can be flexibly disposed in the vacuum cleaner 310 or the dust collection base station 1000 to adapt to different product design requirements.

[0194] In the cleaning device provided by the embodiment of the present disclosure, the mechanism of triggering the opening of the first cover 12 through the negative pressure can avoid the problem of opening failure or delay caused by component wear and jamming in conventional mechanical triggering. The negative pressure device 30 can stably regulate the internal air pressure of the dust collection base station 1000, and the fixing member 3112 can be accurately released only when the air pressure meets the preset condition. This design ensures consistent action response each time the first cover 12 is opened, with no risk of mechanical jamming. Meanwhile, the negative pressure environment can buffer the impact force when the first cover 12 is opened, avoiding deformation or damage of the cover due to uneven instantaneous force. This design significantly improves the stability of the opening of the first cover 12 and extends the service life of the first cover, thereby ensuring the long-term reliable operation of the cleaning device.

[0195] As shown in FIGS. 26 to 31, in some optional implementations, when the air pressure difference between the internal space of the dust collection compartment 311 and the dust collection base station ranges from 3 kPa to 25 kPa, 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 compartment 311 and the dust collection base station 1000 is limited to 3 kPa to 25 kPa can balance unlocking reliability and dust discharge stability. The lower limit of 3 kPa can ensure that the fixing member 3112 obtains a sufficient driving force, avoiding unlocking failure caused by an insufficient negative pressure, and ensuring that each dust discharge is started smoothly. The upper limit of 25 kPa can prevent an excessive negative pressure from causing an excessive impact when the first cover 12 is opened, thereby avoiding deformation of the cover or splashing of the debris, and reducing the energy consumption of the negative pressure device 30. This range accurately matches the action threshold of the fixing member 3112 and the debris transfer demand. Thus, it reduces residue of the debris in the dust collection compartment 311 through negative pressure suction and ensures the service life of the first cover 12 and the fixing member 3112, thereby improving the overall operational stability of the cleaning device.

[0196] As shown in FIGS. 26 to 31, in some optional implementations, when the air pressure difference between the internal space of the dust collection compartment 311 and the dust collection base station ranges from 7 kPa to 25 kPa, the fixing member 3112 releases the first cover 12.

[0197] In this technical solution, limiting the triggering range of the air pressure difference between the dust collection compartment 311 and the dust collection base station 1000 to 7 kPa to 25 kPa is a preferred technical solution, and its technical effect is more in line with actual use needs. From the perspective of unlocking reliability, the higher lower limit of 7 kPa can further avoid the problems of jamming and failure of the fixing member 3112 to unlock due to an insufficient driving force under a low air pressure difference. Even if there is a slight air pressure fluctuation in the negative pressure device 30, it can still ensure that the fixing member 3112 obtains a stable driving force, thereby achieving accurate unlocking of the first cover 12 and avoiding dust discharge interruption caused by unlocking failure. From the perspective of dust discharge stability and component protection, the upper limit of 25 kPa can effectively control the negative pressure intensity, thereby preventing a severe impact caused by an excessive air pressure difference when the first cover 12 is opened. This design avoids deformation of the cover and damage to the sealing structure, and reduces splashing of the debris or its adhesion to the inner wall of the dust collection base station under a strong air flow, thereby ensuring an orderly dust discharge process. In addition, this range can balance negative pressure suction and energy consumption. The negative pressure above 7 kPa can provide sufficient suction to completely remove the residual debris in the dust collection compartment 311 (especially viscous or fine debris). The negative pressure below 25 kPa can avoid excessive work of the negative pressure device 30, and reduce energy consumption, taking into account the cleaning effect and use cost, and significantly improving the comprehensive performance of the cleaning device.

[0198] In some optional implementations, the cleaning device further includes an air pressure sensor. The air pressure sensor is disposed in the dust collection base station 1000. The fixing member 3112 is configured to release the first cover 12 when the internal air pressure of the dust collection base station 1000 is less than 95 kPa.

[0199] In this technical solution, by configuring the air pressure sensor in the dust collection base station 1000 and designing the fixing member 3112 to release the first cover 12 when the internal air pressure of the dust collection base station 1000 is less than 95 kPa, accurate interaction between air pressure detection and unlocking action is achieved. The air pressure sensor can directly monitor the internal air pressure of the dust collection base station in real-time, avoiding errors that may occur when relying on indirect air pressure difference estimation. Thus, it ensures that unlocking is triggered only when the air pressure meets the preset condition, and prevents the first cover 12 from being opened too early or too late due to incorrect air pressure determination. The setting of the 95 kPa threshold not only ensures that a sufficient negative pressure is formed in the dust collection base station to generate a suction force (to remove debris in the dust collection compartment 311) but also avoids excessive energy consumption of the device or overloading of components due to an excessively low negative pressure. This design takes into account unlocking reliability, debris removal effect, and equipment operation safety, improving the overall control accuracy and stability of the cleaning device.

[0200] In some optional implementations, the main body 3111 is cylindrical, and a diameter of the main body 3111 is greater than or equal to 7 cm.

[0201] In this technical solution, the main body 3111 has a cylindrical shape and a diameter greater than or equal to 7 cm, which provides key support for improving the dust discharge effect structurally. The cylindrical shape makes the internal space of the dust collection compartment 311 regular, such that the debris can slide down smoothly along the cylinder wall, avoiding debris accumulation dead corners that are easy to form in irregular structures. This design of the diameter greater than or equal to 7 cm expands the cross-section of the internal channel. On the one hand, this design reduces the risk of blockage when the debris is discharged, and especially reduces the probability of larger particles of debris getting stuck in the channel. On the other hand, combined with negative pressure suction, it can form a more stable air flow field, ensuring that the negative pressure can uniformly act on the entire dust collection space to drive the residual debris to be discharged efficiently, and reduces local air flow turbulence and suction attenuation caused by narrow channels, thereby significantly improving the thoroughness and efficiency of dust discharge.

[0202] In some optional implementations, a dust collection chamber is formed inside the main body 3111, and the dust collection chamber penetrates through the main body 3111 along a height direction of the main body.

[0203] In this technical solution, the dust collection chamber penetrates through the main body 3111 along the height direction of the main body to form an unobstructed longitudinal channel, laying a key structural foundation for improving the dust discharge effect. The through design makes the internal space of the dust collection chamber free of transverse obstacles, such that the debris can directly fall along the height direction. This design avoids debris accumulation dead corners (such as residues at the junction of the bottom and side walls of the chamber and in intermediate partition areas) formed by segmented chambers and obstacles in non-through structures. When combined with negative pressure suction, the unobstructed through channel allows the air flow to pass through the dust collection chamber more smoothly, forming a stable longitudinal air flow field, which can directly drive debris in all areas of the chamber to move quickly to the dust discharge port. This design greatly reduces the adhesion of debris to the wall of the dust collection chamber or being stuck at the obstacle structure, significantly improving the thoroughness and efficiency of dust discharge, and ensuring no residue in the dust collection chamber after each dust discharge.

[0204] In some optional implementations, the fixing member 3112 is disposed on an outer side of the main body 3111.

[0205] In this technical solution, disposing the fixing member 3112 on the outer side of the main body 3111 can completely avoid it occupying the internal space of the dust collection chamber, eliminating the obstruction of the fixing member to the channel of the dust collection chamber from the source. Compared with a built-in design, the external configuration keeps the dust collection chamber with a complete and unobstructed internal channel. When the debris moves along the channel under the action of negative pressure, it will not be stuck or accumulated due to the obstruction of the fixing member, especially avoiding the problem of a fine or long debris getting stuck in the gap between the member and the wall of the dust collection chamber. Meanwhile, the unobstructed channel allows the air flow to be smoother, and the negative pressure suction can uniformly act on the entire area of the dust collection chamber, further improving the efficiency of debris discharge and ensuring a smooth and residue-free dust discharge process.

[0206] In the present disclosure, the terms “first”, “second”, and “third” are used only for descriptive purposes, and should be understood as indicating or implying relative importance; and the term “a plurality of” refers to two or more, unless otherwise specifically defined. The terms such as “mounted to”, “connected with”, “connected to”, or “fixed to” should be comprehended in a broad sense. For example, “connected to” may be comprehended as being fixedly connected, detachably connected, or integrally connected; “connected with” may be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art may understand specific meanings of the above terms in the present disclosure based on specific situations.

[0207] In the description of the present disclosure, it needs to be understood the orientation or positional relationships indicated by terms, such as “upper”, “lower”, “left”, “right”, “front”, and “rear”, are based on the orientation or positional relationship shown in the accompanying drawings, are merely for facilitating the description of the present disclosure and simplifying the description, rather than indicating or implying that an apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore shall not be interpreted as limiting the present disclosure.

[0208] In the description of this specification, the description with reference to the terms such as “one embodiment”, “some embodiments”, and “a specific embodiment” means that the specific features, structures, materials, or characteristics described with reference to the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable way in any one or more embodiments or examples.

[0209] The above are merely preferred examples of the present disclosure, and are not intended to limit the present disclosure, and various changes and modifications can be made by those skilled in the art to the present disclosure. Any modifications, equivalents, improvements, and the like, made within the spirit and principle of the present disclosure shall all fall within the protection scope of the present disclosure.

Examples

Embodiment Construction

[0052]In the following description, numerous specific details are provided to offer a more thorough understanding of the technical solution disclosed in the present disclosure. However, it will be apparent to those skilled in the art that the technical solution of the present disclosure may be practiced without one or more of these specific details.

[0053]It should be noted that the terminology used herein is merely for describing specific embodiments and is not intended to limit the exemplary embodiments of the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular form is also intended to include the plural form. Furthermore, it is to be understood that when the terms “comprises” and / or “includes” are used in this specification, they specify 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, elem...

Claims

1. A dust collection base station, comprising: a base station body and a cover opening structure, wherein an end of the base station body is provided with an accommodating groove; the accommodating groove is configured to accommodate an end of a dust cup; and the cover opening structure is configured to trigger unlocking of a dust discharge cover of the dust cup when an air pressure in the accommodating groove is within a preset negative pressure range;wherein the dust discharge cover is unlocked when an air pressure difference between the accommodating groove and the dust cup ranges from 7 kPa to 25 kPa.

2. The dust collection base station according to claim 1, wherein a side wall of the accommodating groove is provided with a through hole; the cover opening structure is located on the side wall of the accommodating groove; and the cover opening structure comprises a trigger rod and a driving mechanism; andthe trigger rod is inserted into the through hole, and is configured to move into the accommodating groove along the through hole under an action of the driving mechanism, thereby triggering the dust discharge cover of the dust cup to be opened.

3. The dust collection base station according to claim 2, wherein the driving mechanism comprises a fixing bracket and a first elastic member; the fixing bracket is hermetically engaged with the base station body; the first elastic member connects the trigger rod to the fixing bracket; the fixing bracket, the first elastic member and the base station body enclose an air chamber; and the air chamber communicates with the accommodating groove.

4. The dust collection base station according to claim 3, wherein the first elastic member is annular; and an outer edge of the first elastic member is connected to the fixing bracket, and an inner edge of the first elastic member is connected to the trigger rod; andthe first elastic member comprises an annular connecting portion and an annular elastic portion; the annular connecting portion is connected to the fixing bracket; an outer edge of the annular elastic portion is connected to the annular connecting portion, and an inner edge of the annular elastic portion is connected to the trigger rod; the annular elastic portion is arched away from the base station body; and when a negative pressure in the accommodating groove meets a preset condition, the annular elastic portion is deformed toward the base station body to drive the trigger rod to move, thereby triggering the dust discharge cover of the dust cup to be opened.

5. The dust collection base station according to claim 4, wherein a joint between the annular connecting portion and the annular elastic portion is provided with an annular groove; and the annular groove is located on a side of the first elastic member away from the base station body to increase deformation amplitude of the first elastic member.

6. The dust collection base station according to claim 3, wherein the side wall of the accommodating groove is further provided with a dust dropping port; the dust dropping port is located on a side of the through hole away from an opening of the accommodating groove; and the dust dropping port communicates with the air chamber; anda side of the fixing bracket adjacent to the base station body is provided with a bump; the bump is at least partially located in the dust dropping port; and a side of the bump adjacent to the trigger rod is provided with an inclined surface.

7. The dust collection base station according to claim 2, wherein the cover opening structure further comprises a second elastic member; and the second elastic member is sleeved outside the trigger rod, and respectively abuts against the trigger rod and the base station body to exert a force on the trigger rod for causing the trigger rod to move out of the accommodating groove.

8. The dust collection base station according to claim 1, wherein the end of the base station body is further provided with a suction port; the suction port communicates with the accommodating groove; and the suction port is configured to be connected to a dust collector;the base station body is internally provided with a dust bag mounting chamber, and a top end of the dust bag mounting chamber communicates with the accommodating groove; andan outer side of the base station body is provided with a suction channel; the suction channel communicates with the suction port; and the suction channel extends to a bottom end of the dust bag mounting chamber and communicates with the bottom end of the dust bag mounting chamber.

9. A cleaning device, comprising: a dust collector, a dust collection base station, and a negative pressure device, whereinthe dust collector comprises a dust cup and a first cover; the first cover is configured to close or open an internal space of the dust cup; the dust cup is provided with a lock catch; and the lock catch is configured to lock the first cover;the dust collection base station comprises an unlocking member; andthe negative pressure device is configured to generate a negative pressure inside the dust collection base station, such that the unlocking member acts on the lock catch under an action of an air pressure difference to unlock the first cover.

10. The cleaning device according to claim 9, wherein a bottom of the dust cup is provided with a dust discharge port; a first end of the first cover is hinged to a first side of the bottom of the dust cup; the lock catch is rotatably connected to a second side of the bottom of the dust cup; the lock catch is configured to lock a second end of the first cover; the dust collection base station comprises a dust collection bin and the unlocking member; a top of the dust collection bin is provided with a dust collection port for the bottom of the dust cup to extend into; and a side wall of the dust collection bin is provided with a socket for sliding assembly of the unlocking member; andthe negative pressure device is configured to generate a negative pressure inside the dust collection bin, such that the unlocking member moves under an action of the air pressure difference to push the lock catch to disengage from the first cover.

11. The cleaning device according to claim 10, wherein the dust cup is internally provided with a third air duct, a second air duct, and a first air duct; the dust discharge port and the first air duct communicate with the third air duct; the second air duct is isolated from the third air duct; the bottom of the dust cup is further provided with an air inlet communicating with the second air duct; and the air inlet is configured to be connected to the top of the dust collection bin;when the cleaning device operates in a dust suction mode, a first air flow generated by the negative pressure device is conveyed through an air duct comprising the third air duct and the first air duct; andwhen the cleaning device operates in a dust discharge mode, a second air flow generated by the negative pressure device is conveyed through an air duct comprising the second air duct.

12. The cleaning device according to claim 11, wherein a top of the dust cup is provided with a second cover; the second cover is provided with a first opening communicating with the third air duct and a second opening communicating with the second air duct; an air duct diverter is rotatably connected to a side of the second cover away from the dust discharge port; and the air duct diverter is configured to selectively open the first opening and the second opening.

13. The cleaning device according to claim 12, wherein the air duct diverter comprises a first blocking portion and a second blocking portion connected to each other; the first blocking portion and the second blocking portion are disposed on the second cover through a connecting portion; the first blocking portion and the second blocking portion are respectively located on two sides of the connecting portion; the first blocking portion corresponds to the first opening; and the second blocking portion corresponds to the second opening.

14. The cleaning device according to claim 12, wherein a push rod is slidably disposed in the second air duct; the top of the dust collection bin is further provided with an air outlet communicating with the second air duct; an upright post is disposed at the air outlet; a first end of the push rod is hinged to the air duct diverter, and a second end of the push rod is configured to abut against the upright post; an inner wall of the second air duct is provided with a bushing; the bushing is sleeved on the push rod; and the bushing is configured to prevent the push rod from shifting during sliding.

15. The cleaning device according to claim 10, wherein a side wall of the dust cup is provided with a mounting groove for mounting the lock catch; and / ora sealing cover is connected to the side wall of the dust collection bin; the side wall of the dust collection bin is provided with the socket; the sealing cover is provided with a vent hole opposite to the socket; the sealing cover forms an accommodating chamber; the vent hole communicates the accommodating chamber with an external environment of the dust collection bin to generate the air pressure difference between the accommodating chamber and the dust collection bin; the unlocking member passes through the socket; and the unlocking member is partially located in the accommodating chamber.

16. The cleaning device according to claim 15, wherein the unlocking member comprises a piston rod and a slider; a first end of the piston rod passes through the socket, and a second end of the piston rod is connected to the slider; the slider is disposed inside the sealing cover; a deformable member is sleeved on an outer periphery of the piston rod; and the deformable member is configured to exert a force pointing to an initial position on the slider.

17. The cleaning device according to claim 9, wherein the air pressure difference ranges from 7 kPa to 25 kPa.

18. A cleaning device, comprising:a vacuum cleaner, wherein the vacuum cleaner comprises a dust collection compartment, and the dust collection compartment is configured to collect debris; anda dust collection base station, wherein the dust collection base station is configured to be detachably connected to the dust collection compartment to remove the debris collected in the dust collection compartment;wherein at least one of the vacuum cleaner and the dust collection base station is provided with a negative pressure device, and the negative pressure device is configured to reduce an internal air pressure of the dust collection base station;wherein the dust collection compartment comprises:a main body;a first cover, wherein the first cover is connected to the main body, for opening the main body or closing the main body; anda fixing member, wherein the fixing member is configured to fix the first cover relative to the main body and release the first cover when the internal air pressure meets a preset condition.

19. The cleaning device according to claim 18, wherein the fixing member releases the first cover when an air pressure difference between the dust collection compartment and the dust collection base station ranges from 7 kPa to 25 kPa.

20. The cleaning device according to claim 18, further comprising:an air pressure sensor, wherein the air pressure sensor is disposed in the dust collection base station, and the fixing member is configured to release the first cover when the internal air pressure of the dust collection base station is less than 95 kPa.

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