WO2021208598A1

WO2021208598A1 - Self-cleaning filtering apparatus, maintenance station, self-moving cleaning device and cleaning system

Info

Publication number: WO2021208598A1
Application number: PCT/CN2021/077455
Authority: WO
Inventors: 刘海瑞
Original assignee: 追觅创新科技(苏州)有限公司
Priority date: 2020-04-13
Filing date: 2021-02-23
Publication date: 2021-10-21

Abstract

Disclosed in the present application are a self-cleaning filtering apparatus, a maintenance station and a cleaning system having same. The self-cleaning filtering apparatus separates dust attached to an air filter from the air filter by enabling clean air to enter a dust collection box from the direction of the air filter. The maintenance station is used for being in butt joint with a self-moving cleaning device and comprises a housing and a dust box arranged in the housing; a cavity used for containing the dust box is provided in the housing; the housing comprises a top wall and a side wall which define the cavity; and a removal opening from which the dust box can be moved out of the cavity is provided in the side wall. Therefore, the dust box can be directly taken out from the side face of the maintenance station, and the operation is convenient and fast.

Description

Self-cleaning filter device, maintenance station, self-moving cleaning equipment and cleaning system

Technical field

This application relates to a self-cleaning filter device, a maintenance station, a self-moving cleaning equipment and a cleaning system.

Background technique

In order to reduce the number of times that users often clean the dust collection box, a dust collection system is currently installed on the maintenance station. Collect the dust in the dust box into the dust bag of the maintenance station. After collecting the dust many times, clean the dust box.

In the field of sweepers, it is well-known to adopt self-cleaning filter devices with different structures to achieve self-cleaning of the filter device. In the process of researching and realizing the self-cleaning of the filter device, the applicant found that the self-cleaning filter device in the related technology has at least the following problems:

First of all, because the dust-containing air flow needs to be filtered by the air filter and then discharged from the dust collection box, a lot of dust is collected on the air filter, which reduces the suction power of the sweeper and the work efficiency drops; secondly, because a large amount of dust adheres to On the air filter, if you want to continuously ensure the working efficiency of the sweeper, you need to clean the air filter regularly, which increases the workload of the user and reduces the user experience.

The maintenance station is used to charge the self-mobile cleaning equipment or to empty the dust stored in the self-mobile cleaning equipment. At present, there are two ways to remove the dust box of the maintenance station on the market. One is to remove the dust box perpendicular to the direction of the housing of the maintenance station; One is that the dust box is taken out by pivoting around the pivot point relative to the central dust collecting seat of the maintenance station. In both methods, the dust box is taken out from the top wall of the maintenance station. When the maintenance station is placed in a specific position in the room and embedded in the shelf to save space, the top wall of the maintenance station interferes with the shelf at this time, and the top wall cannot be opened directly. The user needs to take the maintenance station out of the frame before removing the dust box from the top wall and cleaning the garbage in it, which increases the user's burden.

Summary of the invention

The purpose of this application is to provide a maintenance station that can easily and quickly take out the dust box; another purpose of this application is to provide a self-cleaning filter device and a sweeper with the same, which automatically cleans the air filter to reduce The number of times the user cleans the air filter reduces the user's workload and improves the user experience.

In order to achieve the foregoing objective, the embodiments of the present application provide the following technical solutions: a maintenance station for docking with a self-mobile cleaning device, the maintenance station includes a housing and a dust box arranged in the housing, and a dust box is formed in the housing. There is a cavity for accommodating the dust box. The housing includes a top wall and a side wall surrounding the cavity. Export.

Further, the maintenance station is embedded in a frame with an insertion opening, and after the maintenance station is embedded in the frame, the orthographic projection of the removal outlet completely falls into the insertion opening.

Further, the dust box can be drawn out of the cavity from the removal port.

Further, the dust box is pivotally connected to the side wall, and the dust box rotates toward the inside and outside of the housing relative to the side wall.

Further, a closing door for closing or opening the removal port is provided on the casing.

Further, the dust box is arranged on the closed door.

Further, the closed door and the dust box are integrally formed.

Further, the dust box is one of a rectangular parallelepiped, a cylinder, and a cube.

An embodiment of the present application also provides a maintenance station for docking with a self-mobile cleaning device. The maintenance station includes a housing and a dust box arranged in the housing, and a dust box is formed in the housing to accommodate the dust box. In the cavity of the housing, the dust box is exposed to the outside from one side of the housing, and the part of the dust box exposed to the outside forms at least a part of the housing.

An embodiment of the present application also provides a cleaning system, including a self-moving cleaning device and the maintenance station, and a storage space for storing dust is provided in the self-moving cleaning device. The maintenance station and the self-moving cleaning A transfer channel is formed between the devices to communicate the storage space and the dust box, and the transfer channel is formed after the maintenance station is docked with the self-mobile cleaning device to allow the dust in the storage space to enter the dust box Inside.

The beneficial effect of the above technical solution is that the side wall of the housing where the dust box is contained in the maintenance station is provided with a removal port that can remove the dust box from the cavity, so that the dust box can be directly taken out of the side of the maintenance station. The operation is convenient and quick.

In order to achieve the above-mentioned objects and other advantages according to the present application, a self-cleaning filter device and a sweeper having the same are provided, including:

A dust box with a hollow inside, the dust box is provided with a fluid inlet and a fluid outlet that are arranged oppositely; and

A negative pressure generator, the suction port of which is opposite to the fluid outlet, so that under the drive of the negative pressure generator, suction negative pressure is generated inside the dust collection box;

Wherein, the suction path of the negative pressure generator is provided with a filter covering the fluid outlet; There is a dust bucket.

Further, the dust exhaust port is provided at the bottom of the dust collection box.

Further, a support frame is also provided between the dust collection box and the negative pressure generator, and the cross-sectional area of the support frame gradually decreases along the air outlet direction of the dust-containing airflow.

Further, a filter frame is provided on the surface of the support frame in contact with the dust collection box;

Wherein, the filter frame has at least three straight lateral and longitudinal sides, and the lateral and longitudinal sides are perpendicular to each other to form a filter grid.

Further, the support part of the support frame is provided with an annular installation groove;

Wherein, the power part of the negative pressure generator is arranged on the annular installation groove.

Further, a filter element is provided on the side air duct of the negative pressure generator.

Further, a flip cover rotatably connected to the dust collection box is provided, and when the flip cover makes the dust collection box closed, the included angle with the inner bottom surface of the dust collection box is α;

The flip cover includes a curved section and a straight section, wherein the fluid inlet is arranged on the curved section so that the opening direction of the fluid inlet is biased toward the ground;

The ends of the flip cover are also provided with anti-skid grooves at intervals.

Further, a dust-proof cabin door is rotatably connected to the fluid inlet, and the dust-proof cabin door can rotate relative to the fluid inlet so that the fluid inlet can be switched between a closed state and an open state;

The dust-blocking compartment door and the fluid inlet are provided with a dust-blocking resetting component, and the dust-blocking resetting component can generate an elastic restoring force acting on the dust-blocking compartment door. When the fluid inlet and the fluid outlet When there is no negative pressure of fluid convection, the dust barrier door keeps the fluid inlet in the closed state. When a negative pressure of fluid convection is generated between the fluid inlet and the fluid outlet, the dust block The cabin door rotates in an opening direction to keep the fluid inlet in the opened state.

Further, a dust exhaust cabin door is rotatably connected to the dust exhaust port, and the dust exhaust cabin door can rotate relative to the dust exhaust port so that the dust exhaust port can be switched between a closed state and an open state;

The dust exhaust compartment door and the dust exhaust port are provided with resetting components, and the dust blocking reset component can generate an elastic restoring force acting on the dust exhaust compartment door. When the dust exhaust port and the fluid outlet When there is no fluid convective negative pressure between, the dust exhaust compartment door keeps the dust exhaust port in the closed state. When a fluid convective negative pressure is generated between the dust exhaust compartment door and the fluid outlet, The dust-exhaust compartment door rotates in an opening direction to keep the dust-exhaust opening in the open state.

Further, an embodiment of the present application also provides a sweeper, which includes the self-cleaning filter device according to any one of the foregoing.

One of the above technical solutions has the following advantages or beneficial effects: it uses clean air to enter the dust box from the fluid outlet to separate the dust attached to the air filter from the air filter, thereby achieving self-cleaning of the air filter .

Another technical solution of the above technical solutions has the following advantages or beneficial effects: it automatically cleans the air filter, reducing the number of times the user cleans the air filter, reducing the workload of the user, and improving the user experience.

The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly and implement it in accordance with the content of the description, the following detailed descriptions are given below with the preferred embodiments of the present application in conjunction with the accompanying drawings.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of the cleaning system shown in the first embodiment of the application;

Figure 2 is a schematic diagram of the structure of the self-moving cleaning device in Figure 1;

Figure 3 is a schematic diagram of a partially exploded structure of the maintenance station in Figure 1;

4 is a schematic structural diagram of the cleaning system shown in the second embodiment of the application;

Fig. 5 is a schematic diagram of a partially exploded structure of the cleaning system in Fig. 4;

Figure 6 is a schematic diagram of the structure of the dust box in Figure 4;

FIG. 7 is a schematic structural diagram of the cleaning system shown in the third embodiment of the application;

FIG. 8 is a schematic diagram of a partially exploded structure of the cleaning system in FIG. 7;

Figure 9 is a perspective view of the three-dimensional structure of the dust box according to an embodiment of the present application;

Figure 10 is a top view of a dust box according to an embodiment of the present application;

Figure 11 is a side view of a separation device for a dust box according to an embodiment of the present application

Figure 12 is a top view of a dust box and a negative pressure generator according to an embodiment of the present application;

Fig. 13 is a schematic diagram of a three-dimensional structure of a negative pressure generator and a support frame proposed according to an embodiment of the present application;

14 is a side cross-sectional view along A-A of the dust box and negative pressure generator of the partial sweeper proposed according to an embodiment of the present application;

15 is a schematic diagram of a three-dimensional structure of a support frame proposed according to an embodiment of the present application;

FIG. 16 is a perspective view of a three-dimensional structure diagram of a partial sweeper according to an embodiment of the present application;

FIG. 17 is a schematic diagram of another perspective three-dimensional structure of the sweeping machine proposed according to an embodiment of the present application;

Figure 18 is a side cross-sectional view of a dust box according to an embodiment of the present application;

FIG. 19 is a perspective view of a three-dimensional structure diagram of a dust exhaust valve according to an embodiment of the present application;

FIG. 20 is a three-dimensional schematic diagram of the dust exhaust valve proposed according to an embodiment of the present application from another perspective;

Figure 21 is a top view of a maintenance station and a sweeper according to an embodiment of the present application;

Figure 22 is a plan view of a maintenance station according to an embodiment of the present application;

Fig. 23 is a sectional side view along B-B of the maintenance station and the sweeper proposed according to an embodiment of the present application.

Detailed ways

The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the mechanism or element referred to must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of this application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood under specific circumstances.

In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

1, the cleaning system shown in the first embodiment of the present application includes a self-mobile cleaning device 12 and a maintenance station 11 connected to the self-mobile cleaning device 12, and a storage device for storing dust is provided in the self-mobile cleaning device 12 Space (not shown), a transfer channel (not shown) is formed between the maintenance station 11 and the self-moving cleaning device 12 to connect the storage space and the dust box 112, and the transfer channel is docked with the self-moving cleaning device 12 at the maintenance station 11 It is formed later to allow dust in the storage space to enter the dust box 112. The self-mobile cleaning device 12 can be docked with the maintenance station 11 in various situations, for example, when the battery of the self-mobile cleaning device 12 needs to be charged, the self-mobile cleaning device 12 completes cleaning, and the self-mobile cleaning device 12 is full. In the case of dust, or in the case where the user directly places the self-moving cleaning device 12 on the maintenance station 11, and so on.

Referring to FIG. 2, the self-moving cleaning device 12 is provided with a main body 121 having a first opening 122, a driving device, a cleaning device, various sensors (not shown), and a control device (not shown). The main body 121 can be formed in various shapes. In this embodiment, the main body 121 is formed in a circular shape. The circular main body 121 is configured to have a fixed radius of rotation, so even when rotating, it can avoid obstacles to the surroundings. The first opening 122 is provided at the bottom of the main body 121, and it is easy to change the direction. It is true that the main body 121 can also have a square structure, which is not limited here, and can be selected according to actual needs. The driving device includes left and right driving

wheels

123 and 124 and casters 125 configured to drive the main body 121 on the clean area. The left side driving wheel 123 and the right side driving wheel 124 are installed in the center of the bottom of the main body 121, and the caster 125 is installed as the front side of the bottom of the main body 121 near the edge, so that the self-moving cleaning device 12 has a stable posture. The cleaning device is provided at the bottom and around the main body 121, and includes a brush unit (not shown), a storage space (not shown) for storing dust, and a dust outlet 126 connected to the storage space. The dust outlet 126 is used for It is docked with the maintenance station 11 to move the dust into the dust box 112. The brush unit is rotatably installed at the first opening 122 of the main body 121, and can collect dust on the ground into the storage space by cleaning. The storage space is provided inside the main body 121 for storing dust introduced through the first opening 122.

3, the maintenance station 11 includes a housing 111 and a dust box 112 arranged in the housing 111. A cavity (not shown) for accommodating the dust box 112 is formed in the housing 111, and the housing 111 includes an enclosure. A top wall 1111 and a side wall 1112 forming a cavity are provided, and the side wall 1112 is provided with a removal port 1113 that can remove the dust box 112 from the cavity. Of course, in other embodiments, the dust box may be exposed to the outside from one side of the housing, and the part of the dust box exposed to the outside forms at least a part of the housing. In this case, the removal outlet is the part of the dust box exposed to the outside. location.

The dust box 112 is used to store dust, and its structure is one of a rectangular parallelepiped, a cylinder, and a cube, but it is not limited to this, and can also be of other structures, which will not be listed here. It is true that the structure for storing dust is limited to the dust box 112, and may also be a structure such as a dust bag, which is not specifically limited here.

In this embodiment, the dust box 112 has a rectangular parallelepiped structure, and the dust box 112 has a third opening 1121 and four first side walls 1122 surrounding the third opening 1121. The dust entering the maintenance station 11 enters through the third opening 1121 To the dust box 112. When the dust box 112 enters the cavity from the removal port 1113, one of the first side walls 1122 of the dust box 112 can just close the removal port 1113, so as to achieve the tightness of the housing 111 of the maintenance station 11 and avoid entering the maintenance station 11 The dust is blown out of the maintenance station 11. Of course, in other embodiments, the dust box may be embedded in the removal port. The dust box 112 can enter the cavity from the moving outlet 1113 or be pulled out of the cavity, so that the dust in the dust box 112 can be emptied. The first side wall 1122 is provided with a drawing member 1123 for facilitating the drawing of the dust box 112. The drawing member 1123 forms a groove from the first side wall 1122 to the inside of the dust box 112, and the first side wall 1122 A shielding baffle extends downwards from the top of the groove. The shielding baffle covers part of the groove. When the user puts his hand into the groove, the finger can be held against the shielding baffle, so that the dust box 112 can be drawn out of the cavity. Pull out. In other embodiments, the drawing member may also be a protrusion protruding outward from the first side wall 1122, and the specific structure of the drawing member is not specifically limited here, and can be set according to actual needs.

In order to save space, the maintenance station 11 can be embedded in a frame (not shown) with an insertion port. The frame can be arranged in accordance with the shape and structure of the maintenance station 11, so that the maintenance station 11 is installed in the frame. To make full use of space, a platform can be set on the top surface of the frame to place other objects. After the maintenance station 11 is embedded in the frame, the orthographic projection of the removal outlet 1113 completely falls into the insertion opening, and the removal outlet 1113 is not blocked by any material, so that the dust box 112 can be directly removed from the removal outlet 1113 from the insertion opening. , The operation is simple and quick, without extra steps. Of the four side walls of the frame, each side wall may be provided with an embedding port. In this embodiment, the number of embedding ports of the rack is two, and one embedding port is used for docking with the self-moving cleaning device 12, The other insertion opening is used for drawing the dust box 112, and the two insertion openings are arranged adjacently. In other embodiments, the number of insertion openings may be one, that is, the moving outlet 1113 is provided and the self-moving cleaning device 12 is docked at the same side wall position. The number of embedding ports can be multiple, and the specific embedding port settings can be set according to actual needs. Of course, the shape of the frame body can also be other, and there is no specific limitation here.

The maintenance station 11 has a platform 113 arranged on the housing 111 to support the self-moving cleaning equipment 12 when the self-moving cleaning equipment 12 is docked with the maintenance station 11. The platform 113 is arranged in an inclined manner, so that the self-mobile cleaning device 12 can easily climb up and down from the platform 113. A guide 1131 for guiding the left driving wheel 123 and the right driving wheel 124 is formed on the platform 113. The guide 1131 has a threaded structure to prevent the self-moving cleaning device 12 on the platform 113 from being removed from the platform 113. Slide down.

The maintenance station 11 also has a second opening 1132 formed on the platform 113, and the second opening 1132 is provided at a position corresponding to the dust outlet 126 and capable of leading to the dust outlet 126, thereby forming a transmission channel. The dust discharged through the dust outlet 126 of the mobile cleaning device 12 is introduced into the second opening 1132 of the platform 113 and stored in the dust box 112 of the maintenance station 11. The dust box 112 is used to store dust discharged from the storage space of the mobile cleaning device 12. Therefore, the dust box 112 has a larger storage space than the self-moving cleaning device 12. The maintenance station 11 further includes a charging device 114 provided on the platform 113, and the charging device 114 is provided with a plurality of connection terminals for docking with the self-moving cleaning equipment 12 and charging the self-moving cleaning equipment 12.

The maintenance station 11 is also provided with a ventilating device (not shown), and an inlet pipe (not shown) and an outlet pipe (not shown) connected to the ventilating device. The ventilating device is a device for inhaling or discharging air, and is provided with ventilation. Fan and fan motor. The inlet of the inlet pipe is connected to the second opening 1132, and the scattered dust flows from the second opening 1132 toward the direction of the inlet pipe, and then is stored in the dust box 112 of the maintenance station 11 through the inlet pipe. The air discharged from the outlet of the outlet duct moves toward the inside of the storage space of the self-mobile cleaning device 12, so that the dust in the storage space of the self-mobile cleaning device 12 is scattered toward the outside, so that the scattered dust can be moved toward the first The direction of the two openings 1132 is sucked in. In this way, the dust from the storage space of the mobile cleaning device 12 can enter the dust box 112.

The maintenance station 13 and cleaning system shown in the second embodiment of the present application are basically the same as the maintenance station 11 and cleaning system shown in the first embodiment. The difference is: please refer to Figures 4 to 6, the dust box 132 is pivotally connected On the side wall 1312, the dust box 132 can rotate relative to the side wall 1312 toward the inside and outside of the housing 131. Specifically, the junction of the two first side walls 1322 of the dust box 132 is provided with a first pivoting member 1324, and a second pivoting member ( (Not shown), so as to realize that the dust box 132 rotates around the axis where the first pivoting member 1324 is located, so that the third opening 1321 of the dust box 132 is moved and exposed, which facilitates the cleaning of the dust in the dust box 132. Of course, the dust box 132 Rotating around the axis where the first pivotal member 1324 is located can also close the moving outlet 1313.

The maintenance station 14 and cleaning system shown in the third embodiment of the present application are basically the same as the maintenance station 11 and cleaning system shown in the first embodiment. The difference is: please refer to Figures 7 and 8, which are provided on the housing 141 There is a closing door 1414 for closing or opening the removal port 1413. A third pivotal member 1415 is provided on one side of the closed door 1414, and a fourth pivotal member 1416 is provided at the corresponding position of the side wall 1412 to connect with the third pivotal member 1415. The closed door 1414 can surround the fourth pivotal member 1416. The shaft rotates to close or open the moving outlet 1413. In this embodiment, the dust box 142 is set in the cavity. When the removal port 1413 is opened, the dust box 42 can be taken out from the maintenance station 14. After cleaning the dust in the dust box 142, the dust box 142 is placed in the cavity and turned and closed. The door 1414 can close the moving exit 1413. In other embodiments, the dust box 142 can be arranged on the closed door 1414. As the closed door 1414 rotates out of the cavity, the dust box 142 also rotates out, so that the dust in the dust box 142 can be easily cleaned. 142 As the closing door 1414 rotates relative to the cavity, the closing door 1414 can close the moving outlet 1313. The closed door 1414 and the dust box 112 can also be integrally formed. Of course, the closed door 1414 and the dust box 112 can also be detachably connected or fixed in other ways. There is no specific limitation here, and selections can be made according to needs.

To sum up, the side wall of the housing of the maintenance station containing the dust box is provided with a removal port that can remove the dust box from the cavity, so that the dust box can be directly taken out of the side of the maintenance station, and the operation is convenient and quick.

According to an embodiment of the present application in conjunction with the illustrations in Fig. 9, Fig. 10 and Fig. 11, it can be seen that the self-cleaning filter device includes:

The dust box 21 with a hollow inside is provided with a fluid inlet 2121 and a fluid outlet 2131 which are arranged oppositely. The fluid inlet 2121 and the fluid outlet 2131 are arranged opposite to each other, so that the airflow path is the shortest. The energy loss in the dust collection box 21 is the lowest, so that the wind at this time is the strongest, a higher suction force is generated, and the electric energy consumption at this time can be minimized, and the endurance of the sweeper is increased. The cross-sectional area of the dust box 21 gradually decreases from the top to the bottom of the dust box 21 in the longitudinal direction, so that the dust is affected by gravity and slides down the side wall of the dust box 21 to the bottom of the dust box 21 , To maximize the effect of dust collection.

Referring now to FIG. 12, it can be understood that the suction port of the negative pressure generator 24 is opposite to the fluid outlet 2131, so that under the driving of the negative pressure generator 24, the dust box 21 Suction negative pressure is generated internally.

Wherein, the suction path of the negative pressure generator 24 is provided with a filter 213 covering the fluid outlet 2131, the dust box 21 is provided with a dust outlet 211, and the dust box 21 passes through The dust exhaust port 211 is connected with a dust collecting bucket, and the dust exhaust port 211 is arranged at the bottom of the dust box 21.

Referring again to FIG. 13, it can be clearly understood that the filter 213 with the number of fluid outlets 2131 of the dust box 21 includes a first filter grid 2132 and a second filter grid 2134, the first filter grid 2132 and A filter cotton 2133 is arranged between the second filter grids 2134, and the filter cotton 2133 keeps fine dust particles in the dust collecting box 21.

Further, referring to FIG. 14, when the dust box 21 is performing cleaning work, the dust-containing airflow enters from the fluid inlet 2121 and is discharged from the filter 213, which blocks the dust of the dust-containing airflow in the dust box 21 Within; when the dust collection box 21 performs dust removal work, the airflow enters from the filter 213, and the dust attached to the filter 213 is separated from the filter 213.

The negative pressure generator 24 is arranged behind the dust box 21 along the moving direction of the dust-containing airflow; further, the dust box 21 is provided with a filter 213 on the opposite side of the fluid inlet 2121, the filter 213 communicates with the negative pressure generator 24; when the dust collecting box 21 performs cleaning work, the dust-containing airflow is discharged from the filter 213, and the filter 213 blocks the dust of the dust-containing airflow in the dust collecting box 21.

Now referring to FIG. 13 again, it can be clearly seen that there is a support frame 242 between the dust collection box 21 and the negative pressure generator 24, and the cross-sectional area of the support frame 242 gradually decreases along the direction of the airflow containing the dust.

A filter frame 2422 is provided on the surface of the support frame 242 in contact with the dust box 21; wherein, the filter frame 2422 has at least three straight lateral sides 24222 and a longitudinal side 24221. 24222 and the longitudinal side 24221 are perpendicular to each other to form a filter grid. The filter grid can not only fix the filter 213 on the dust box 21, but also allow the air flow to pass smoothly.

Further, as shown in FIG. 15, the support portion 2421 of the support frame 242 is provided with an annular installation groove; wherein the power part of the negative pressure generator 24 is provided on the annular installation groove, and the support portion 2421 is connected to the sweeper The inner bottom surface of the fan forms a tunnel, so that the airflow can circulate smoothly between the fan and the dust box 21.

Now referring to FIG. 16 and FIG. 17 again, it can be understood that the side air duct of the negative pressure generator 24 is provided with a filter 241, and when the dust box 21 is performing dust removal work, the outside airflow After the filter element 241 is filtered and cleaned, the dust on the filter 213 can be separated from the filter 213 when it passes through the filter 213. Because the side wall of the dust box 21 has a certain slope, the dust can gradually slide down to the dust outlet by gravity. , Play the role of cleaning the air filter, improve the suction power of the sweeper, reduce the number of times the user cleans the filter 213, and improve the user experience. The filter element 241 is adapted to the shape of the housing 25 of the sweeping machine. The housing 25 of the sweeping machine is provided with grids arranged in an array. The grids are effective for the heat generated by the negative pressure generator 24. diffusion.

Now referring to FIGS. 9 and 10 again, it can be clearly seen that the fluid inlet 2121 is rotatably connected with a dust-proof cabin door 214, and the dust-proof cabin door 214 is attached to the fluid inlet 2121. The dust barrier door 214 can rotate relative to the fluid inlet 2121 so that the fluid inlet 2121 can be switched between a closed state and an open state;

The dust-blocking compartment door 214 and the fluid inlet 2121 are provided with a dust-blocking resetting component, and the dust-blocking resetting component can generate an elastic restoring force acting on the dust-blocking compartment door 214. When the fluid inlet 2121 and the fluid inlet 2121 When there is no negative pressure of fluid convection between the fluid outlet 2131, the dust compartment door 214 keeps the fluid inlet 2121 in the closed state. When the fluid is under negative pressure, the dust compartment door 214 rotates in an opening direction to keep the fluid inlet 2121 in the open state.

Now in conjunction with Figure 18, referring to Figure 14 again, it can be clearly understood that when the sweeper is performing cleaning work, the negative pressure generator 24 runs, and the air in the dust box 21 is discharged from the sweeper along the fan, so that the dust box 21 Negative pressure is generated inside. At this time, the dust outlet 211 is closed and the fluid inlet 2121 is opened. The dust compartment door 214 is pushed away from the flip cover 212 by the airflow from the outside, so that the dust-containing airflow follows the surface of the dust compartment door 214 When moving into the dust box as shown below, a part of the dust is affected by gravity and will fall along the dust compartment door 214 or the inner wall of the dust box and fall on the bottom of the dust box. The dust-laden airflow continues to pass through the filter 213 to remove the finer particles in the airflow. Blocked inside the dust box, the airflow continues to exit the sweeper along the fan. When there is no dust-containing airflow into the dust box, the dust-proof cabin door 214 naturally covers the fluid inlet 2121, so that the dust-proof cabin door 214 is closed, and the dust-proof cabin door 214 ensures the dust-containing airflow Only enter the dust box. Therefore, when the sweeper 2 performs dust removal work, the dust removal device 214 is still naturally covered above the fluid inlet 2121, so that the fluid inlet 2121 is closed, and the clean airflow enters from the fluid outlet 2131, making the filter 213 The dust detaches from the filter 213, so that the filter 213 has a self-cleaning effect.

Further, referring again to FIG. 16, when the sweeper performs cleaning work, the filter 241 can play a role in noise reduction, which can reduce the noise generated by the negative pressure generator 24 and improve the comfort of the user during use. .

Further, in conjunction with Figure 19 and Figure 20, referring to Figure 9 again, the dust exhaust port 211 is rotatably connected with a dust exhaust compartment door 2112, and the dust exhaust compartment door can rotate relative to the dust exhaust port 211 so that the The dust outlet 211 is switched between the closed state and the open state;

The dust exhaust compartment door 2112 and the dust exhaust port 211 are provided with resetting components, and the dust blocking reset component can generate an elastic restoring force acting on the dust exhaust compartment door 2112. Reinforcing ribs 21121 are provided on the lower surface to make the structure of the dust exhaust compartment door 2112 stable. The material of the dust-exhaust cabin door 2112 is rubber, for example. When there is no negative pressure of fluid convection between the dust outlet 211 and the fluid outlet 2131, the dust outlet door 2112 keeps the dust outlet 211 in the closed state. When a fluid convective negative pressure is generated between the door 2112 and the fluid outlet 2131, the dust exhaust cabin door 2112 rotates in an opening direction to keep the dust exhaust 211 in the open state.

Further, when the space in the dust collection box 21 is insufficient, the automatic dust collection system on the maintenance station 1 will generate a relatively large suction force, so that the dust exhaust compartment door 2112 can be sucked open, and the dust is sucked into the maintenance station 1 where the dust is concentrated. Inside, the space of the dust collection box 21 is emptied, which is convenient for reuse and reduces the number of cleanings for the user. After the dust exhausting work is completed, the dust exhaust compartment door 2112 is made of rubber material and has recovery performance. Sealing the dust exhaust port 211 effectively ensures that the dust does not leak out of the dust collection box 21.

18 again, it can be clearly understood that the dust box 21 is provided with a flip cover 212 rotatably connected to the dust box 21, and the flip cover 212 can rotate relative to the dust box 21 so that the dust box 21 is opened and closed. Switch, when the flip cover 212 is in the closed state of the dust collection box 21, the included angle with the inner bottom surface of the dust collection box 1 is α, and α can be 120°～135°; the flip cover 212 includes a curved section and a straight section, wherein The fluid inlet 2121 is arranged on the curved section, so that the opening direction of the fluid inlet 2121 is biased toward the ground. The flip cover 212 is at 120°～135° so that the fluid inlet 2121 and the fluid outlet 2131 are not arranged in parallel, so that when the sweeper performs dust exhausting work, when the dust exhaust compartment door 2112 is opened, negative pressure is generated, and the airflow opportunities are all from the fluid outlet 2131 Entering will not cause the dust compartment door 214 to rotate under the influence of negative pressure, causing the fluid inlet 2121 to open.

The end of the flip cover 212 is also provided with non-slip grooves 215 at intervals. When the dust collection box 21 is removed from the sweeper, press the flip cover 212 to push the flip cover 212 away from the dust collection box 21, the flip cover 212 will open, blocking The dust piece 214 will also remove the dust box 21 along with the flip cover 212. The inside of the dust collecting box 21 can be easily cleaned, and the dust blocking sheet 214 will not occupy the internal space to form a dead corner, so as to avoid the accumulation of internal dust and mildew.

In a specific embodiment, with further reference to FIGS. 21, 22 and 23, it can be clearly understood that when the dust box 21 is charged at the maintenance station 1, the dust outlet 211 of the dust box 21 is connected to the maintenance The dust suction port 3113 of the station 1 is opposite to each other, the drive inside the maintenance station 1 generates suction, and the dust inside the dust box 21 is collected into the dust collecting device 3121 of the maintenance station 1 through the dust collecting channel 31311. When the sweeper is performing dust removal work, the negative pressure generator 24 does not work at all times, and the dust is discharged by the wind generated by the driver in the maintenance station 1, but the clean air flow from the outside is from the negative pressure generator 24 It can also pass through the filter 213, so that the dust on the filter 213 is separated from the filter 213, thereby playing a role of cleaning the filter 213.

The number of equipment and processing scale described here are used to simplify the description of this application. The applications, modifications and changes to this application are obvious to those skilled in the art.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered as the range described in this specification.

The above examples only express several implementations of the application, and the descriptions are more specific and detailed, but they should not be interpreted as limiting the scope of the patent application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

A maintenance station, characterized in that it is used for docking with a mobile cleaning device. The maintenance station includes a housing and a dust box arranged in the housing, and a cavity for accommodating the dust box is formed in the housing The housing includes a top wall and a side wall surrounding the cavity, and the side wall is provided with a removal outlet that can move the dust box out of the cavity.
The maintenance station according to claim 1, wherein the maintenance station is embedded in a frame with an insertion opening, and after the maintenance station is embedded in the frame, the orthographic projection of the removal outlet completely falls on the Embedded in the opening.
The maintenance station according to claim 1 or 2, wherein the dust box can be drawn out of the cavity from the removal port.
The maintenance station according to claim 1 or 2, wherein the dust box is pivotally connected to the side wall, and the dust box rotates toward the inside and outside of the housing relative to the side wall.
The maintenance station according to claim 1 or 2, wherein the housing is provided with a closed door for closing or opening the removal port.
The maintenance station according to claim 5, wherein the dust box is arranged on the closed door.
The maintenance station according to claim 6, wherein the closed door and the dust box are integrally formed.
The maintenance station according to claim 1 or 2, wherein the dust box is one of a rectangular parallelepiped, a cylinder, and a cube.
A maintenance station, characterized in that it is used for docking with a mobile cleaning device, the maintenance station includes a housing and a dust box arranged in the housing, and a cavity for accommodating the dust box is formed in the housing The dust box is exposed to the outside from one side of the housing, and the part of the dust box exposed to the outside forms at least a part of the housing.
A cleaning system, characterized by comprising a self-moving cleaning device and the maintenance station according to any one of claims 1 to 9, wherein a storage space for storing dust is provided in the self-moving cleaning device, so Between the maintenance station and the self-moving cleaning equipment is formed a transfer channel useful for communicating the storage space and the dust box, and the transmission channel is formed after the maintenance station and the self-moving cleaning equipment are docked to enable the storage space The dust inside enters the dust box.
A self-cleaning filter device, characterized in that it comprises:

A dust box with a hollow inside, the dust box is provided with a fluid inlet and a fluid outlet that are arranged oppositely; and a negative pressure generator whose suction port is opposite to the fluid outlet so that the negative pressure generator Driven by, suction negative pressure is generated inside the dust box;

Wherein, the suction path of the negative pressure generator is provided with a filter covering the fluid outlet, the dust box is provided with at least one dust exhaust port, and the dust box passes through the dust exhaust A dust collecting bucket is connected outside the mouth.
The self-cleaning filter device according to claim 11, wherein the dust exhaust port is provided at the bottom of the dust collecting box.
The self-cleaning filter device according to claim 11, wherein a support frame is further provided between the dust collection box and the negative pressure generator, the cross-sectional area of which gradually decreases along the air outlet direction of the dust-containing airflow. Potential.
The self-cleaning filter device according to claim 12, wherein a filter frame is provided on the surface of the support frame in contact with the dust collection box;

Wherein, the filter frame has at least three straight lateral and longitudinal sides, and the lateral and longitudinal sides are perpendicular to each other to form a filter grid.
The self-cleaning filter device according to claim 12, wherein the supporting part of the support frame is provided with an annular installation groove; wherein the power part of the negative pressure generator is arranged on the annular installation groove.
The self-cleaning filter device according to claim 11, wherein a filter element is provided on the side air duct of the negative pressure generator.
The self-cleaning filter device of claim 11, wherein the dust box is provided with a flip cover that is rotatably connected to the dust box, and the flip cover is close to the inner bottom surface of the dust box when the dust box is closed. The included angle is α;

The flip cover includes a curved section and a straight section, wherein the fluid inlet is arranged on the curved section so that the opening direction of the fluid inlet is biased toward the ground; the ends of the flip cover are also provided with anti-slip grooves at intervals.
The self-cleaning filter device of claim 11, wherein the fluid inlet is rotatably connected with a dust-proof cabin door, and the dust-proof cabin door can rotate relative to the fluid inlet so that the fluid inlet is closed. Switch between state and open state;

The dust-blocking compartment door and the fluid inlet are provided with a dust-blocking resetting component, and the dust-blocking resetting component can generate an elastic restoring force acting on the dust-blocking compartment door. When the fluid inlet and the fluid outlet When there is no negative pressure of fluid convection, the dust barrier door keeps the fluid inlet in the closed state. When a negative pressure of fluid convection is generated between the fluid inlet and the fluid outlet, the dust block The cabin door rotates in an opening direction to keep the fluid inlet in the opened state.
The self-cleaning filter device according to claim 11, wherein a dust exhaust cabin door is rotatably connected to the dust exhaust opening, and the dust exhaust cabin door can rotate relative to the dust exhaust opening to make the dust exhaust Switch between closed state and open state;

The dust exhaust compartment door and the dust exhaust port are provided with resetting components, and the dust blocking reset component can generate an elastic restoring force acting on the dust exhaust compartment door. When the dust exhaust port and the fluid outlet When there is no fluid convective negative pressure between, the dust exhaust compartment door keeps the dust exhaust port in the closed state. When a fluid convective negative pressure is generated between the dust exhaust compartment door and the fluid outlet, The dust-exhaust compartment door rotates in an opening direction to keep the dust-exhaust opening in the open state.
A self-moving cleaning equipment, characterized in that it comprises the self-cleaning filter device according to any one of claims 11 to 19.