CN116473457A - A cleaning device with dust suction, self-cleaning and dust collection - Google Patents

Abstract

The invention discloses a cleaning device with dust suction, self-cleaning and dust collection, comprising a vacuum cleaner main body and a base station. The cleaning device has a dust suction mode and a positive pressure self-dust collection mode. The positive pressure self-dust collection mode includes two modes: self-cleaning and dust collection. The switching of at least one of the air passage and the air outlet air passage is realized. On the one hand, the cost is lower, and the weight of the whole set of equipment is lighter; on the other hand, dust collection and self-cleaning use positive pressure blowing, which has better self-cleaning and dust collection effects than negative pressure suction; on the other hand, the realization of self-dust collection mode does not require manual operation, and the operation is simpler.

Description

A cleaning device with dust suction, self-cleaning and dust collection

technical field

The invention relates to the technical field of cleaning equipment, in particular to a cleaning equipment with dust suction, self-cleaning and dust collection.

Background technique

Hand-held vacuum cleaners have increasingly entered thousands of households due to their small size, portability and advantages of not being constrained by power cords. Hand-held vacuum cleaners generally use the negative pressure generated by the fan to absorb garbage and other impurities into the dust bucket and collect them. The dust cup has a small volume. After use, the dust bucket is opened to dump the garbage, but the dust will scatter when emptying, causing secondary pollution. In order to solve the above problems, base stations with dust collection function appear on the market, which can collect the dust in the dust cup to avoid dust. For example, the Chinese Patent Document No. CN218651617U discloses a dust collection system for a vacuum cleaner base station, including a base station and a vacuum cleaner. The base of the base station is provided with a dust collection bag and a negative pressure component. The vacuum cleaner is placed on the base station, and the bottom cover of the dust cup is opened. The suction of the negative pressure component causes negative pressure inside the accommodating chamber, and the dust inside the main body of the dust cup automatically falls and is collected into the base station, achieving the purpose of self-dust collection. For the cleaning equipment of this conventional solution, the entire cleaning set is equipped with two suction devices, one is set in the vacuum cleaner to generate negative pressure in the dust cup when the vacuum cleaner is in the dust collection mode, and the other is set in the base station to generate negative pressure in the dust collection chamber to achieve the purpose of dust collection. On the one hand, the cost is high. In addition, the dust cup of the vacuum cleaner is usually equipped with a filter and separation component for separating dust particles, such as a conventional cyclone filter. In order to solve this problem, there are various filter self-cleaning solutions on the market, which can be roughly divided into contact cleaning structure and non-contact cleaning structure. The contact cleaning structure includes dust scraping strips, brush strips, scrapers, etc. that directly act on the filter screen of the filter, and the non-contact type includes knocking vibration or negative pressure suction. The contact cleaning method generally operates at the same time as the vacuum cleaner is started. Users cannot choose the self-cleaning time according to their needs. The noise is loud during work, which affects the experience, and the cleaning effect is not good. For relatively hard cleaning parts such as scrapers, it is easy to damage the filter during the cleaning process, which will affect the filtering effect of the filter and even make the filter invalid. Non-contact schemes are used more in existing vacuum cleaners on the market, such as the filter self-cleaning device and vacuum cleaner disclosed in Chinese Patent Document Publication No. CN116019386A. The filter self-cleaning device includes a casing, a power source, a transmission assembly, a cam, a knocker and an elastic reset member. The knocking part includes a contact part and a knocking part. The contact part is in contact with the cam. The knocking part is used to knock the knocking object connected to the filter. The knocking of the knocking part makes the filter vibrate, so that the dust is vibrated and separated from the filter screen, so as to achieve the purpose of filter cleaning. However, in this solution, the structure of the filter self-cleaning device is very complicated on the one hand, and the design cost is high. On the other hand, the knocking part can only clean the filter screen of the filter, but cannot clean the dust attached to the inner wall of the dust cup. In the negative pressure suction scheme, on the one hand, it is also necessary to increase the suction device, resulting in higher costs; on the other hand, because the suction air needs to pass through the long suction channel at the front end, the air volume loss is large, and the air volume actually entering the dust cup to backwash the filter screen is small, and the self-cleaning effect of the filter is not good. Therefore, in order to solve the above-mentioned problems, the present invention is hereby conceived.

Contents of the invention

In view of at least one of the above-mentioned technical problems, the purpose of the present invention is to provide a cleaning device with dust suction, self-cleaning and dust collection.

The technical solution of the present invention is: the object of the present invention is to provide a cleaning device with dust suction, self-cleaning and dust collection, including a vacuum cleaner main body and a base station. The cleaning device has a dust suction mode and a positive pressure self-dust collection mode. The positive pressure self-dust collection mode includes two modes: self-cleaning and dust collection.

The main body of the vacuum cleaner can automatically switch from the dust suction mode to the positive pressure self-dust collection mode when placed on the base station, and the switch between the dust suction mode and the positive pressure self-dust collection mode is realized by switching at least one of the air inlet air duct and the air outlet air duct.

Compared with the prior art, the advantages of the present invention are: the cleaning equipment of the present invention has dust suction, self-cleaning and dust collection, on the one hand, the cost is lower, and the weight of the whole set of equipment is lighter; on the other hand, dust collection and self-cleaning use positive pressure blowing, compared with negative pressure suction, the self-cleaning and dust collection effect is better; on the other hand, the realization of the self-dust collection mode does not require manual operation, and the operation is simpler.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a three-dimensional structural schematic diagram of a cleaning device with dust suction, self-cleaning and dust collection according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of a cleaning device with dust suction, self-cleaning and dust collection in an embodiment of the present invention, with the base station leading and the brush head assembly facing backward;

Fig. 3 is a schematic diagram of the exploded structure of the dust cup assembly and the fan assembly of the cleaning equipment with dust suction, self-cleaning and dust collection according to the embodiment of the present invention;

Fig. 4 is a partial enlarged view of part A in Fig. 3;

Fig. 5 is a partial enlarged view of part B in Fig. 3;

Fig. 6 is a structural schematic diagram of a filter assembly of a cleaning device with dust suction, self-cleaning and dust collection according to an embodiment of the present invention (6 (a) is a front view, 6 (b) is a perspective view with the bottom facing up, and 6 (c) is a bottom view);

Fig. 7 is a schematic cut-away structure diagram of a filter assembly of a cleaning device with dust suction, self-cleaning and dust collection according to an embodiment of the present invention (arrows indicate the airflow direction in dust suction mode and positive pressure self-dust collection mode);

Figure 8 is a schematic structural view of the HEPA assembly in the filter assembly of the cleaning equipment with dust suction, self-cleaning and dust collection according to the embodiment of the present invention (wherein 8(a) is a front view, 8(b) is a perspective view with the bottom facing upward, and 8(c) is a bottom view);

Fig. 9 is a three-dimensional structural schematic diagram of a fan assembly with dust suction, self-cleaning and dust collection cleaning equipment according to an embodiment of the present invention (9 (a) is a schematic diagram of the front cover ahead, and 9 (b) is a schematic diagram of the rear cover ahead);

Fig. 10 is a schematic structural view of a fan bracket with dust suction, self-cleaning and dust collection cleaning equipment according to an embodiment of the present invention (wherein 10(a) is a perspective view, 10(b) is a top view, and 10(c) is a side view);

Fig. 11 is a schematic cross-sectional structure diagram of the main body of the vacuum cleaner (not including the brush head assembly) of the cleaning device with dust suction, self-cleaning and dust collection in the dust suction mode according to the embodiment of the present invention;

Fig. 12 is a partially enlarged view of part C in Fig. 11;

Fig. 13 is a schematic cut-away structure diagram of a cleaning device (excluding the brush head assembly) with dust suction, self-cleaning and dust collection in the positive pressure self-dust collection mode according to the embodiment of the present invention;

Fig. 14 is a partial enlarged view of part D in Fig. 13;

Fig. 15 is a schematic cut-away structure diagram of a base station (excluding the support body) with cleaning equipment for dust suction, self-cleaning and dust collection according to an embodiment of the present invention;

Fig. 16 is a schematic cross-sectional structural view of a base station (including a support body) having cleaning equipment for dust suction, self-cleaning and dust collection according to an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

A cleaning device with dust suction, self-cleaning and dust collection according to an embodiment of the present invention, as shown in Fig. 1 to Fig. 16, includes a vacuum cleaner main body and a base station 40, which is used for dust collection. The cleaning device has a dust suction mode and a positive pressure self-dust collection mode, and the power sources of the dust suction mode and the positive pressure self-dust collection mode come from the same fan assembly 20 . The positive pressure self-dust collection mode here means that the dust cup body 31 of the dust cup assembly 30 is under positive pressure instead of the conventional negative pressure during dust collection. The main body of the vacuum cleaner placed on the base station 40 can automatically switch from the dust collection mode to the positive pressure self-dust collection mode, and the switch between the dust collection mode and the positive pressure self-dust collection mode is realized by switching at least one of the air inlet air duct and the air outlet air duct. It should be noted that the positive pressure self-dust collection mode in the embodiment of the present invention includes two modes: self-cleaning and dust collection. Self-cleaning refers to the dust cup assembly 30, and dust collection refers to introducing dust and other sundries in the dust cup assembly 30 into the base station 40. At the same time, the dust and other sundries generated during the self-cleaning process of the dust cup assembly 30 are also introduced into the base station 40. The air ducts are the same in the two modes of self-cleaning and dust collection, and self-cleaning is carried out during the dust collection process, so the two modes are summarized as positive pressure self-dust collection pattern. In the cleaning equipment implemented in the present invention, the main body of the vacuum cleaner can be used alone for dust collection, or it can be placed on the base station 40 for self-cleaning and dust collection, and the realization of dust collection and self-cleaning is automatically realized when the main body of the vacuum cleaner is placed on the base station 40. More specifically, the two modes of dust collection and self-dust collection share one fan assembly 20, and placing the main body of the vacuum cleaner on the base station 40 will trigger switching of at least one of the air inlet air duct or the air outlet air duct, thereby realizing the switching between the dust suction mode and the positive pressure self-dust collection mode. It should be noted that the positive pressure in the positive pressure self-dust collection mode here means that the air pressure inside the dust cup is greater than the air pressure inside the base station 40 or greater than the air pressure outside the dust cup. Similarly, the negative pressure inside the dust cup in the dust collection mode means that the air pressure inside the dust cup is lower than the air pressure outside the dust cup. Compared with the technical solution of adding an additional suction device or other negative pressure device on the base station 40 in the prior art, the cleaning equipment of the embodiment of the present invention has lower cost and lighter weight of the whole set of equipment on the one hand; on the other hand, dust collection and self-cleaning use positive pressure air blowing, which has better self-cleaning and dust collection effects than negative pressure suction; on the other hand, the realization of the self-dust collection mode does not require manual operation, and the operation is simpler.

According to some preferred embodiments of the embodiments of the present invention, after the main body of the vacuum cleaner is removed from the base station 40, the air duct is automatically switched back to the air duct in the vacuuming mode. That is to say, the switch from the self-dust collection mode to the dust collection mode is achieved by separating the main body of the vacuum cleaner from the base station 40. After the main body of the vacuum cleaner is removed from the base station 40, the air duct automatically resets to the air duct in the dust collection mode when the main body of the vacuum cleaner is used alone. No additional operation is required for the user to switch the air duct, and the operation is more convenient. It should be noted that the technical solution for switching from the self-dust collection mode to the dust collection mode through manual operation is also within the protection scope of the present invention. For example, the air duct switching is controlled by a button, push button or knob arranged on the outer wall of the dust cup assembly 30. Automatic switching can be realized when the main body of the vacuum cleaner is placed on the base station 40.

According to some preferred embodiments of the embodiments of the present invention, as shown in FIGS. 1 to 14 , the main body of the vacuum cleaner includes a fuselage assembly 10, a fan assembly 20 disposed on the fuselage assembly 10, and a dust cup assembly 30, wherein the dust cup assembly 30 includes a dust cup body 31 and a filter assembly 32 disposed in the dust cup body 31. The fuselage assembly 10 is provided with an air inlet channel 11 which communicates with the dust cup assembly 30 in the dust suction mode and is closed in the positive pressure self-dust collection mode. The air inlet channel 11 is used to connect the brush head assembly 50 such as a conventional rolling brush type floor brush assembly. An extension air duct (not marked). The fuselage component 10 includes a fuselage body with an air inlet channel 11, a dust suction exhaust port 12 and a dust blowing intake port 13. The fuselage body is provided with a handle structure (not shown), and the fuselage body is provided with an installation cavity (not shown) for the installation of the fan assembly 20, and the installation cavity is provided with a fan bracket 14 for the installation of the fan assembly 20. As shown in (10a) in FIG. 3 and FIG. In the dust mode, the position or angle relative to the fuselage assembly 10 or the dust cup assembly 30 changes so that the fan assembly 20 and the fan support 14 form a switchable air passage. Specifically, at least one air inlet and at least one air outlet are provided on the fan assembly 20, and at least one air inlet and at least one air outlet are also provided on the fan bracket 14. As an exemplary embodiment, for example, under the dust suction mode, an air inlet on the fan bracket 14 is connected with an air inlet on the fan assembly 20, and an air outlet of the fan assembly 20 is connected with an air outlet on the fan bracket 14 to form an air duct and is connected with the dust suction outlet 12. It is discharged outside the main body of the vacuum cleaner, and other air inlets and air outlets on the fan assembly 20 and fan support 14 are closed or blocked and cannot enter and exit the wind; while in the positive pressure self-dust collection mode, the closed or blocked air inlet and outlet in the dust collection mode are conducted and communicated with the dust blowing air inlet 13 to blow the positive pressure of the gas entered by the dust blowing air inlet 13 into the dust cup assembly 30, and the air inlet and outlet conducted under the dust collection mode are closed or blocked. That is to say, the air duct changes in the dust collection mode and the positive pressure self-dust collection mode, and is not fixed. More specifically, as shown in FIG. 9 , the fan assembly 20 is provided with a first air inlet 221 , a first air outlet 222 and a first air outlet 231 . Preferably, as shown in FIG. 3 , the fan assembly 20 of the embodiment of the present invention includes a fan body 21 and a front cover 22 and a rear cover 23 that are arranged outside the fan body 21 , the first air inlet 221 and the first air outlet 222 are opened on the front cover 22 , and the first air outlet 231 is opened on the rear cover 23 . As shown in FIG. 10 , the fan bracket 14 is provided with a second air inlet 141 , a second air outlet 142 and a third air inlet 143 . Preferably, the second air inlet 141 , the second air outlet 142 and the third air inlet 143 are sequentially arranged at intervals on the fan support 14 along the arc direction of the rotation of the fan assembly 20 . In the dust collection mode, the second air inlet 141, the first air inlet 221, and the first air outlet 231 are sequentially turned on; in the positive pressure self-dust collection mode, the third air inlet 143, the first air inlet 221, the first air outlet 222, and the second air outlet 142 are sequentially turned on. As an alternative embodiment, the fan assembly 20 is provided with a first air inlet 221 and a first air outlet 222 . The fan bracket 14 is provided with a second air inlet 141 , a second air outlet 142 and a third air inlet 143 . In the dust collection mode, the second air inlet 141, the first air inlet 221, and the first air outlet 222 are sequentially connected; in the positive pressure self-dust collection mode, the third air inlet 143, the first air inlet 221, the first air inlet 222, and the second air outlet 142 are sequentially connected. That is to say, the first air outlet 231 is not opened on the fan assembly 20, and at this moment, only the opening position of the dust suction exhaust port 12 used as the exhaust air in the dust collection mode on the fuselage assembly 10 needs to be adjusted accordingly.

According to some preferred embodiments of the embodiments of the present invention, as shown in FIGS. 3 and 6 to 8 , the dust cup assembly 30 includes a dust cup body 31 , a filter assembly 32 disposed in the dust cup body 31 , a bottom cover 33 disposed at the bottom of the dust cup body 31 , and a movable cover 34 that is movably connected such as hinged at an opening on the bottom cover 33 , and preferably also includes a seal such as a seal ring 36 arranged on the opening of the bottom cover 33 for sealing the movable cover 33 . It should be noted that a locking member 35 is provided inside the bottom cover 33 , and the locking member 35 is used to lock the movable cover 34 in a natural state, that is, when it is not working or in a vacuuming mode. In order to realize that the movable cover 34 can be automatically opened under the positive pressure self-dust collection mode so that the interior of the dust cup body 31 and the interior of the base station 40 are conducted, as shown in FIG. The specific structure of the locking member 35 is not described and limited in detail, and the existing conventional locking member 35 can be selected. As an exemplary embodiment, as shown in FIG. 3 and FIGS. 11 to 12 , the latch 35 includes a latch body and a biasing member 351. In the installed state, the biasing member 351 gives the latch body a biasing force toward the center of the opening of the bottom cover 33, so that the latch 35 can lock the movable cover 34 covering the opening of the bottom cover 33. The latch body has a hook portion 353 on the opening side of the bottom cover 33 and is connected to the biasing member 351. One end of the bottom cover 353 has a barb (inverted triangle), and the hook 353 can hook the protruding cover edge 341 on the inner end surface of the movable cover 34 under the biasing force of the biasing member 351 when the movable cover 34 is closed (hook shape matching the hook 353). The bottom cover 33 also has a first jack (not marked) for the first trigger 45 to be inserted into. When the main body of the vacuum cleaner is placed on the base station 40, the first trigger 45 is inserted into the first jack and pushed. The barb portion of the latch body is such that the latch body can move up a certain distance so that the hook portion 353 is separated from the cover edge 341. Then, due to the action of the slope on the barb portion, the latch body will move toward the center direction away from the opening of the bottom cover 33 and overcome the bias force of the biasing member 351 so that the hook portion 353 is completely separated from the movable cover 34. Finally, the movable cover 34 is opened under the positive pressure in the dust cup body 31. Preferably, the lock member 35 also includes a lock release push rod 352 that is movably connected to the bottom cover 33 along the axis direction of the dust cup body 31 and protrudes outside the first socket of the bottom cover 33 when the movable cover 34 is closed in the vacuum mode or whose bottom is flat with the bottom of the first socket (as shown in FIG. 3 and FIG. 11 to FIG. 12 , the top of the lock release push rod 352 is in an inverted triangle shape). When the force is pushed, the barb portion of the lock body will be pushed. Specifically, when the main body of the vacuum cleaner is placed on the base station 40, the lock release push rod 352 is pushed upward by the first trigger 45 to push the lock 35 upward along the first socket so that the lock 35 is unlocked so that the movable cover 34 can be opened under positive pressure. As for the first trigger 45, it is preferably a key-like component such as an upward protruding push rod disposed on the top end cover of the base station 40 . It should be noted that there is a supporting frame 15 on one side of the Dust Cup Body 31, and the support frame 15 is used to support the wind machine component 20 and the filter component 32 and the support frame 15 has multiple holes in order to reach the airflow of the dust cup component 30 in the vacuum mode to enter the air inlet of the air component 20. The airflow of the air outlet of the unit 20 can enter the dust cup component 30 through the hole.

The switching of the air duct under the dust suction mode and the self-dust collection mode can be realized by the way that the fan assembly 20 rotates relative to the fuselage assembly 10 as shown in FIG. 13 and FIG. 14 . As an alternative embodiment, the fan support 14 may rotate relative to the fuselage assembly 10 or the dust cup assembly 30 while the fan assembly 20 is fixed. As a modified embodiment, the fan assembly 20 can also be fixed, and the fan bracket 14 can be translated relative to the fuselage assembly 10. The specific structure is not specifically limited and described. You can refer to the structure of the switching assembly in the multi-purpose pet vacuum cleaner patent previously applied by the applicant. As another alternative embodiment, the fan bracket 14 is fixed, and the fan assembly 20 realizes the switching of the air duct in a translational manner, and the specific structure is not described in detail. Please refer to the structure of the switching assembly in the multi-purpose pet vacuum cleaner patent previously applied by the applicant. In the embodiment of the present invention, the switching of the air duct is preferably realized by rotating the fan assembly 20 and the fan bracket 14, that is, in the dust suction mode and the positive pressure self-dust collection mode, the angle of the fan assembly 20 relative to the fuselage assembly 10 or the dust cup assembly 30 changes. In order to realize that the main body of the vacuum cleaner can be triggered to automatically switch the air duct when it is placed on and removed from the base station 40, the body assembly 10 is provided with a push assembly linked with the fan assembly 20, and the base station 40 is provided with a second trigger 46 for triggering the action of the push assembly when the main body of the vacuum cleaner is placed on the base station 40 to drive the fan assembly 20 to rotate to realize the automatic switching of the air duct. In a preferred embodiment, as shown in FIG. 3 to FIG. 5 and FIG. 11 to FIG. 14 , the pushing assembly includes a first pushing assembly 37 and a second pushing assembly. The first push assembly 37 is movably arranged in the dust cup body 31 and the bottom cover 33 is provided with a second socket 332 or socket for the second trigger 46 to push the first push assembly 37 upwards. More specifically, as shown in FIG. 3 , the first push assembly 37 includes a first push member 371 movably arranged in the dust cup body 31 extending along the axis of the dust cup body 31 such as a push rod or a push plate and a first elastic return member 372 connected to the dust cup body 31 and the other end to the first push member 371; The second elastic reset member 160 is connected with the second pushing member 16 and connected with the fan bracket 14 at the other end. As for the first elastic return member 372 and the second elastic return member 160 , they are conventional extension springs and the like. It should be noted that in this embodiment, the first pusher 371 and the second pusher 16 are independent, that is, they are not connected together. They only contact or abut when the main body of the vacuum cleaner is placed on the base station 40 and are triggered to switch the air duct. As for the second trigger 46, it is an existing conventional push rod and other components. In the embodiment of the present invention, when the main body of the vacuum cleaner is placed on the base station 40, the second trigger member 46 pushes the first push assembly 37 upward, the first push assembly 37 moves upward and pushes to the second push assembly, and the second push assembly also moves upward to rotate around the pivotal shaft between the second push member 16 and the fan assembly 20, thereby driving the fan assembly 20 to rotate to realize the switching of the air duct. Preferably, the second pusher 16 is a flat plate, and on the side wall of the second pusher 16 facing away from the fan assembly 20, there is provided a first hook 161 bent upwards for connecting with the second elastic reset member 160, and correspondingly, a second hook 144 bent downward for connection with the other end of the second elastic reset member 160 is provided on the fan bracket 14. Preferably, the first push member 371 is a push rod or a push plate. As shown in FIG. 3 and FIG. 4 , the first push member 371 is provided with a first connection portion 3711 for connecting one end of the first elastic reset member, specifically for hooking, and the bottom cover plate 33 is provided with a second connection portion 331 for the other end of the first elastic return member to be articulated. The first connection portion 3711 and the second connection portion 331 shown in the figure are connection holes. The first connection part 3711 and the second connection part 331 may also be hook structures. As an alternative embodiment, the first pusher 371 and the second pusher 16 are connected together to form a linkage structure, that is to say, the pusher assembly can also be a linkage linkage assembly. At this time, there is no need to set multiple elastic reset members such as extension springs, only one elastic reset member such as extension springs is required. It should be noted that the connecting rod assembly may be only one connecting rod, or may be multiple connecting rods. As another alternative embodiment, the pushing assembly may also be a meshing transmission assembly such as a rack and pinion transmission structure. It should be noted that, as shown in Figures 11 to 14, the second pusher 16 is arranged at the position of the dust blowing inlet 13. In the dust suction mode, the second pusher 16 just blocks the dust blowing inlet 13, and the wind in the dust collection mode is discharged from the dust suction exhaust port 12; in the positive pressure self-dust collection mode, the second pusher 16 moves upward to open the dust blowing inlet 13.

According to some preferred embodiments of the embodiment of the present invention, after the main body of the vacuum cleaner is placed on the base station 40 and the air duct is switched from the dust suction duct to the self-dust collection duct, the fan body 21 starts up automatically, and the fan body 21 starts up automatically and automatically shuts down after completing self-cleaning and dust collection operations and subsequent charging is all realized by a micro switch (not shown). The micro switch and the fan body 21 can be connected by a control module such as a control circuit and the micro switch is arranged on the fan assembly 20 or the push assembly or at the connection position between the two. The micro switch is a conventional micro switch in the prior art. The base station 40 is also provided with a charging interface for charging the main body of the vacuum cleaner. Correspondingly, the main body of the vacuum cleaner is provided with a charging interface. When the main body of the vacuum cleaner is placed on the base station 40, the charging interface is electrically connected to the charging interface. At this time, preferably, the main body of the vacuum cleaner does not immediately execute the charging program, but first triggers the self-cleaning and dust-collecting program through the micro switch and performs a self-cleaning and dust-collecting operation for a preset time such as 1s-20s. When the preset time is reached, the fan body 21 is turned off. The fan assembly 20, the control device controls the main body of the vacuum cleaner to switch to the charging program. The cleaning equipment of the embodiment of the present invention can switch between self-dust collection and charging through the setting of the micro switch, and self-dust collection and charging do not need manual operation, and the operation is simple.

According to some preferred embodiments of the embodiments of the present invention, the power source of the power source in the dust suction mode and the positive pressure self-dust collection mode is the same and is a battery pack or a power supply. For example, a battery pack (not shown) or a power supply (not shown) may be integrated in the body assembly 10 , and the electric energy for the suction operation of the fan assembly 20 in the dust collection mode of the main body of the vacuum cleaner is provided by the battery pack or the power supply. There is no need to add a suction device or a negative pressure device in the base station 40 for dust collection in the prior art, which requires the main body of the vacuum cleaner and the base station 40 to use a power source to perform the two functions of dust suction and dust collection respectively, resulting in increased use costs. In the embodiment of the present invention, there is only one power source in the dust suction mode and the self-dust collection mode, and the manufacturing cost and use cost are both low.

According to some preferred embodiments of the embodiments of the present invention, in order to achieve a better self-cleaning effect, the embodiment of the present invention also improves the filter assembly 32 . Specifically, as shown in FIGS. 6 to 8 , the filter assembly 32 includes a cyclone separator 321 and a HEPA assembly 322 disposed in the middle of the cyclone separator 321 . Wherein, the cyclone separator 321 includes a filter holder 3211 and a filter screen 3212 mounted on the filter holder 3211 , and a cavity is provided in the middle of the filter holder 3211 to facilitate the installation of the HEPA component 322 . Taking the use of the filter holder 3211 as an example to describe and illustrate, from the direction close to the fan assembly 20 to the movable cover plate 34, that is, from top to bottom as shown in Figure 6 (6a), the filter holder 3211 includes a first section, a second section and a third section, wherein the outer diameter of the first section is larger than the outer diameter of the second section and the third section, that is, the filter holder 3211 is thicker at the top and thinner at the bottom. More specifically, the outer wall of the first section protrudes radially outwards to form a spiral air guide structure 32111 extending spirally downward. In the embodiment of the present invention, the spiral air guide structure 32111 is preferably a spiral air guide groove as shown in FIG. 2. The top end of the first section has an opening for the HEPA assembly 322 to be fixed. The second section is provided with a filter screen 3212, and the third section is in the shape of an inverted cone. Preferably, on the third section, the end facing the movable cover plate 34 in the installed state has a blowing dust blocking structure 3214 that is closed in the dust suction mode and opened in the positive pressure self-dust collection mode. The outside of the 3212 is butted. In the installed state, the filter holder 3211 is facing the air outlet of the air inlet channel 11. It is also provided with an air inlet and dust shielding structure 3213 that is opened in the dust suction mode to conduct the air inlet channel 11 and the dust cup body 31 and is closed in the positive pressure self-dust collection mode to cut off the air inlet air channel and the dust cup body 31. The entrance of the groove, that is to say, in the dust collection mode, the airflow from the air inlet channel 11 into the dust cup body 31 will not enter the inside of the spiral air guide groove, but only spiral downward along the outer wall of the spiral air guide groove to form a spiral air flow. For the HEPA assembly 322, as shown in Figure 8, the HEPA assembly 322 includes a HEPA frame 3221, a HEPA body 3222, and a HEPA bottom cover 3223. The HEPA frame 3221 is provided with a number of second air outlet holes 32211. During installation, the HEPA frame 3221 is covered at the top opening of the first section of the filter holder 3211, and the first air outlet hole 32112 corresponds to the second air outlet hole 32211. The correspondence here refers to both Projections on the same horizontal plane, that is, along the axis of the filter assembly 32 , are at least partially overlapped, and can be completely overlapped or partially overlapped. In a preferred embodiment of the present invention, as shown in (8b) and (8c) in Figure 8, there are two groups of second air outlet holes 32211 on the HEPA frame 3221, and the two groups of second air outlet holes 32211 are concentric and have different radii. 11 corresponds to the gap between the outer wall of the HEPA body 3222 and the inner wall of the filter bracket 3211 , and the second air outlet hole 32211 on the outer ring corresponds to the first air outlet hole 32112 . The HEPA body 3222 is installed on the HEPA frame 3221 and has several folds 32221. An air flow passage 32222 along the axis direction of the cyclone filter 321 is formed between any two adjacent folds 32221. The HEPA bottom cover 3223 is arranged on the end of the HEPA body 3222 away from the HEPA frame 3221 and the HEPA bottom cover 3223 has an escape gap 3223 at any air flow passage 32222. 1. That is to say, in the dust collection mode and the positive pressure self-dust collection mode, the airflow through the airflow channel 32222 will not be blocked and the flow direction of the airflow through the filter holder 3211 in the two modes is opposite. In the dust collection mode, the airflow inside the filter holder 3211 is positive, then the airflow inside the filter holder 3211 is reversed in the self-dust collection mode, that is, in the self-dust collection mode, the airflow reversely blows the inner wall of the filter holder 3211 and the outer wall of the HEPA body 3222 and the filter holder 3211 The outer wall and the inner wall of the dust cup body. In the cleaning equipment of the embodiment of the present invention, the airflow can directly enter the airflow channel 32222 through the avoidance gap 32231 in the dust suction mode for secondary filtration. Improve the self-cleaning efficiency of the filter. Specifically, as shown in (8b) of FIG. 8 , the HEPA body 3222 is in the shape of an inverted cone with a thick upper end and a thinner end, and the HEPA bottom cover 3223 is a polygon with multiple corners. In an alternative embodiment, the HEPA bottom cover 3223 of the HEPA assembly 322 is not provided with the escape notch 32231 . In another alternative embodiment, the HEPA body 3222 can also be arranged in an existing conventional sheet-like manner, that is, one or more separate sheet-shaped HEPAs can be arranged side by side or in an array at the bottom of the HEPA rack 3221, and each sheet-shaped HEPA body 3222 also has a plurality of folds 32221. In the embodiment of the present invention, in the dust collection mode, the air intake dust shielding structure 3213 is opened, the blowing dust shielding structure 3214 is closed, and the airflow with dust and debris inhaled in the air intake channel 11 enters the dust cup body 31 and is filtered through the filter screen 3212 along the spiral air guide structure 32111. Dust suction exhaust port 12 is discharged; under the positive pressure self-dust collection mode, the air intake dust shielding structure 3213 is closed, the blowing dust shielding structure 3214 is opened, and the airflow entering the dust blowing air inlet 13 passes through the fan assembly 20 and passes through the second air outlet hole 32211, and all blows to the space between the outer wall of the filter holder 3211 and the inner wall of the dust cup body 31, or partially blows to the space between the inner wall of the filter holder 3211 and the outer wall of the HEPA body 3222, and partially blows to the filter holder 32 The space between the outer wall of 11 and the inner wall of the dust cup body 31 finally enters into the base station 40 through the opening at the bottom of the dust cup body 31 to realize self-cleaning of dust collection and filter assembly 32 and the inner wall of the dust cup body 31. It should be noted that, in the self-dust collection mode, part of the air flow goes out through the first air outlet hole 32112 and forms a spiral air flow around the outer wall of the spiral air guide structure 32111. This part of the air flow is in the same direction as the air flow entering the dust cup body 31 from the air inlet channel 11 in the dust collection mode, which can realize self-cleaning of the outer wall of the cyclone filter 321 and the inner wall of the dust cup body 31. In addition, part of the airflow passing through the first air outlet hole 32112 will spiral downward along the guide wall 321111 to self-clean the inner wall of the filter screen 3212, and a part of the airflow will enter between the inner wall of the filter holder 3211 and the outer wall of the HEPA body 3222 through the second air outlet hole 32211, and the flow direction of this part of the airflow is consistent with the fold line between two adjacent folds 32221 of the HEPA body 3222, so as to realize the cleaning of the HEPA body 3222 Cleaning of the outer wall. The cleaning device of the embodiment of the present invention, through the improvement of the structure of the above-mentioned filter assembly 32, although the cleaning device of the embodiment of the present invention in the self-dust collection mode is the same as the existing suction self-cleaning cleaning device, the air flow reversely blows the filter assembly 32, but in the embodiment of the present invention, through the setting of the structure and the adoption of positive pressure self-cleaning mode, not only the outer wall of the cyclone filter 321 and the outer wall of the HEPA body 3222 can be self-cleaned, but also the inner wall of the dust cup can be self-cleaned, and the blower is blown by the fan above the dust cup assembly 30 during self-cleaning. Compared with the suction device or other negative pressure devices provided in the base station 40 in the prior art, the assembly 20 has a shorter distance from the dust cup assembly 30, less wind loss, stronger wind power for self-cleaning, and naturally better self-cleaning effect. For the blowing dust-proof structure 3214, it is a dust-proof sheet made of conventional soft material, such as a rubber sheet with a cross cut in the middle. As an alternative embodiment, the air blowing dust blocking structure 3214 can also be an existing conventional one-way valve, the wind can only flow in one direction, that is, the wind cannot enter the inside of the filter holder 3211 from bottom to top in the dust collection mode, but in the positive pressure self-dust collection mode, the airflow can be discharged from the inside of the filter holder 3211 into the dust cup and then introduced into the base station 40. As another alternative embodiment, it is also possible not to set the blowing and dust-proof structure 3214, but to open an opening at the bottom end of the third section of the filter bracket 3211 and extend the opening directly to contact with the inner surface of the movable cover plate 34 instead of being fixed. In the dust collection mode, due to the negative pressure in the dust cup body 31, the bottom end of the filter bracket 3211 can be tightly attached to the movable cover plate 34, and the sealing structure such as a sealing ring between the bottom of the filter bracket 3211 and the movable cover plate 34 plays a sealing role, while in the positive pressure self-dust collection mode, because the bottom end of the filter bracket 3211 is not fixedly connected with the movable cover plate 34, the movable cover plate 34 will be blown open under the positive pressure to make the bottom end of the filter bracket 3211 The opening is opened, so that during the self-cleaning operation, dust and other sundries on the outer wall of the HEPA body 3222 can be blown off and introduced into the base station 40 . For the spiral air guiding structure 32111, as shown in (6c) in Figure 6, the projection of the spiral air guiding structure 32111 on the horizontal plane is a circular ring, and the arrangement of the first air outlet holes 32112 on the spiral air guiding structure 32111 can be partially or completely spiral. Specifically, any first air outlet hole 32112 is but not limited to a waist-shaped hole or an oval hole as shown in Figure 6 (6b) and (6c). Diameter direction, but an angle with the radius or diameter direction of the ring and the included angle is not zero. With such a design, the wind will form a spiral airflow during self-cleaning, which can achieve better self-cleaning and dust removal effects. Preferably, the extension direction of all the first air outlet holes 32112 is equal to the included angle formed by the line connecting the midpoint of the ring and any end of the first air outlet holes 32112 . It is convenient for design and processing, and is more conducive to the formation of spiral airflow, further improving the self-cleaning effect. It should be noted that the air flow channel is different in the dust suction mode and the positive pressure dust collection mode. Specifically, in the dust suction state, the air flow channel is the side of the HEPA body facing away from the inner wall of the filter holder, that is, the space defined between any adjacent pleats on the inner wall of the HEPA body, while in the dust blowing state, the air flow channel is the space defined between any two adjacent pleats on the outer wall of the HEPA body.

According to some preferred embodiments of the embodiments of the present invention, as shown in FIGS. 15 to 16 , the base station 40 is provided with a storage chamber 41 inside, and a dust bag 42 is also provided in the storage chamber 41 . Preferably, the air inlet of the storage cavity 41, that is, the area of the upper opening of the storage cavity 41 as shown in FIG. The self-cleaning of the components is too small, which is not conducive to the dust collection in the base station. The volume of the storage chamber 41 is not less than the effective volume of the dust cup body 31 that can accommodate garbage, that is, the volume of the space after the space occupied by the filter component 32 is subtracted. Optionally, as shown in FIG. 16 , the base station 40 further includes a support body 47 , and a plurality of support legs 48 that can be folded and stored or unfolded are provided on a base at the bottom of the support body 47 at intervals in the circumferential direction. On the outer surface of the base station 40 corresponding to the outer side of the air outlet filter 43 , a side cover (not shown) that can be opened to take out the inner air outlet filter 43 for cleaning or replacement can also be optionally provided.

It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principle of the present invention, and not to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention shall fall within the protection scope of the present invention. Furthermore, it is intended that the appended claims of the present invention embrace all changes and modifications that come within the scope and metesques of the appended claims, or equivalents of such scope and metes and bounds.

Claims (10)

1. The cleaning equipment with the functions of dust collection, self-cleaning and dust collection comprises a dust collector main body and a base station, and is characterized by comprising a dust collection mode and a positive pressure self-dust collection mode, wherein the positive pressure self-dust collection mode comprises a self-cleaning mode and a dust collection mode, and power sources of the dust collection mode and the positive pressure self-dust collection mode are all from the same fan assembly;

the dust collector main body can automatically realize the switching from a dust collection mode to a positive pressure self-dust collection mode when being placed on the base station, and the switching between the dust collection mode and the positive pressure self-dust collection mode is realized by the switching of at least one air channel in an air inlet channel and an air outlet channel.

2. A cleaning apparatus having the functions of dust collection, self-cleaning and dust collection as claimed in claim 1, wherein the duct is automatically switched back to the duct in the dust collection mode after the cleaner body is removed from the base station.

3. A cleaning apparatus having a function of cleaning, self-cleaning and dust collection according to claim 1 or 2, wherein the cleaner body comprises a body assembly, a blower assembly and a dirt cup assembly provided on the body assembly;

the machine body component is internally provided with a fan support for installing the fan component, and the fan component and one of the fan supports are connected in a mode that the position or the angle of the fan component and the fan support relative to the machine body component or the dust cup component is changed in a dust collection mode and a positive pressure self-dust collection mode so that the fan component and the fan support form a switchable air duct.

4. A cleaning apparatus having a function of dust collection, self-cleaning and dust collection as claimed in claim 3, wherein the main body assembly is connected with an air inlet channel and provided with a dust collection air outlet and a dust blowing air inlet;

the fan assembly is provided with a first air inlet, a first air blowing port and a first air outlet;

the fan bracket is provided with a second air inlet, a second air blowing port and a third air inlet;

In the dust collection mode, the air inlet channel, the dust cup assembly, the second air inlet, the first air outlet and the dust collection exhaust port are sequentially communicated; in the positive pressure self-dust collection mode, the dust blowing air inlet, the third air inlet, the first air blowing opening, the second air blowing opening and the dust cup component are sequentially communicated; or (b)

The fan assembly is provided with a first air inlet and a first air blowing opening;

the fan bracket is provided with a second air inlet, a second air blowing port and a third air inlet;

in the dust collection mode, the air inlet channel, the dust cup assembly, the second air inlet, the first air blowing port and the dust collection exhaust port are sequentially communicated; and in the positive pressure self-dust collection mode, the dust blowing air inlet, the third air inlet, the first air blowing opening, the second air blowing opening and the dust cup component are sequentially communicated.

5. The cleaning device with dust collection, self-cleaning and dust collection according to claim 4, wherein the dust cup assembly comprises a dust cup body, a filter assembly arranged in the dust cup body, a bottom cover plate arranged at the bottom of the dust cup body and a movable cover plate movably connected with an opening on the bottom cover plate, wherein the movable cover plate is locked and closed by a locking piece arranged on the bottom cover plate in a dust collection mode;

The base station is provided with a first trigger piece for triggering the movable cover plate to unlock and a second trigger piece for triggering the air duct to switch;

the movable cover plate is triggered by the first trigger piece to unlock under the positive pressure self-dust collection mode and blown open by positive pressure airflow to conduct the dust cup body and the base station;

the main body of the dust collector is provided with a pushing component which can be triggered by the second trigger piece and drive one of the fan component or the fan bracket to change the position or the angle relative to the machine body component or the dust cup component so as to realize the switching of the air duct.

6. A cleaning apparatus having the functions of dust collection, self cleaning and dust collection as claimed in claim 5, wherein the blower assembly is rotatably mounted in the main body assembly, and the second trigger member is configured to switch the air duct by triggering a change in position or angle of the blower assembly relative to the main body assembly or the dust cup assembly;

the pushing assembly comprises a first pushing assembly which is arranged in the dust cup body and can be displaced by triggering and reset after triggering release, and a second pushing assembly which is arranged on the fan bracket and can be displaced by the displacement triggering of the first pushing assembly and reset after triggering release, wherein the second pushing assembly is positioned on a path of displacement of the first pushing assembly after triggering, and one end of the second pushing assembly, which is far away from the first pushing assembly, is connected with the fan assembly;

Under the positive pressure self-dust collection mode, the first pushing component is triggered by the second triggering piece to move towards the direction of the second pushing component, the second pushing component is triggered by the displacement of the first pushing component to move towards the direction away from the first pushing component, and the fan component changes in angle relative to the machine body component to realize the switching of the air duct.

7. The cleaning device with dust collection, self-cleaning and dust collection according to claim 6, wherein a micro switch is further arranged on the fan assembly or the pushing assembly, and the micro switch is in circuit connection with the fan body;

when the fan assembly is switched into place, a circuit between the micro switch and the fan body is conducted, the fan body is started to work so as to perform self-cleaning and dust collection operation, and after a preset time, the fan body is closed and is switched into charging the dust collector body.

8. A cleaning apparatus having the functions of dust extraction, self-cleaning and dust collection as set forth in claim 5, wherein said filter assembly includes a cyclone separator and a HEPA assembly disposed intermediate said cyclone separator;

the cyclone separator comprises a filtering support and a filter screen arranged on the filtering support, wherein the outer wall surface of the filtering support is provided with a spiral air guide structure, one end of the filtering support, which faces the movable cover plate in the installation state, is provided with a dust blowing and shielding structure which is closed in the dust collection mode or opened in the positive pressure self-dust collection mode, one end of the filtering support, which faces the fan assembly in the installation state, is provided with an opening for fixing the HEPA assembly, the spiral air guide structure is provided with a plurality of first air outlet holes which penetrate through, and the filtering support, which faces the air outlet position of the air inlet channel in the installation state, is also provided with a dust inlet and shielding structure which is opened in the dust collection mode to conduct the air inlet channel and the dust cup body and is closed in the positive pressure self-dust collection mode to cut off the air inlet channel and the dust cup body;

The HEPA component comprises a HEPA frame, a HEPA body and a HEPA bottom cover, wherein a plurality of second air outlet holes are formed in the HEPA frame, the HEPA body is installed on the HEPA frame and provided with a plurality of folds, an airflow circulation channel along the axial direction of the cyclone filter is formed between any two adjacent folds, the HEPA bottom cover is arranged at one end, far away from the HEPA frame, of the HEPA body, and a gap is formed in the HEPA bottom cover at any airflow circulation channel;

in the dust collection mode, the air inlet dust blocking structure is opened, the air blowing dust blocking structure is closed, air flow with dust and sundries sucked in the air inlet channel enters the dust cup body, is filtered by the filter screen along the spiral air guide structure, enters the filter support, enters the fan assembly along the air flow channel through the top opening of the HEPA body, and is finally discharged through the dust collection exhaust port; under the positive pressure is from the dust collection mode, the air inlet dust blocking structure is closed, the dust blocking structure of blowing is opened, the air current that blows the dirt air inlet and get into after the fan subassembly through the second blow port rear portion blow to space between filtration support inner wall and the HEPA body outer wall, part blow to space between filtration support outer wall and the dirt cup body inner wall, enter into the basic station through the opening of dirt cup body bottom at last and realize from album dirt and filtration subassembly and dirt cup body inner wall's self-cleaning.

9. The cleaning device with dust collection, self-cleaning and dust collection according to claim 8, wherein the blowing dust blocking structure is a dust blocking sheet or a one-way valve made of soft materials; or (b)

The filter support is not provided with a dust blowing structure at one end facing the movable cover plate in an installation state, but is provided with an opening and directly extends to the inner surface of the movable cover plate, and in a dust collection mode, the filter support is tightly contacted with the movable cover plate by means of negative pressure suction and a sealing structure arranged between the bottom of the filter support and the movable cover plate to realize sealing.

10. A cleaning device having the functions of dust collection, self-cleaning and dust collection according to claim 3, wherein a battery pack or a power source is integrated in the body assembly, and the power source for the power source in the dust collection mode and the positive pressure self-dust collection mode is the same and is the battery pack or the power source.