Cleaning device

Abstract

The utility model provides a cleaning device which comprises a dirt collecting barrel and a suction head capable of being assembled to the dirt collecting barrel, the suction head comprises a shell, a motor and a filter assembly, the shell is provided with a motor containing cavity and a filter containing cavity, and the motor containing cavity and the filter containing cavity are in fluid communication through a motor suction opening; the motor and the filter assembly are contained in the motor containing cavity and the filter containing cavity respectively, and the filter containing cavity is provided with an opening; the shell comprises a cover body capable of opening or closing the opening, and the filter assembly can enter and exit from the filter containing cavity through the opening in the direction of the first axis; the filter assembly includes a main filter and a pre-filter, where the main filter is closer to the motor suction port and the opening than the pre-filter, and a projection of the main filter in the direction of the first axis covers a projection of the pre-filter in the direction of the first axis. According to the cleaning device, when the pre-filter needs to be disassembled, the suction head does not need to be disassembled from the dirt collecting barrel, and operation is simpler and more convenient.

Description

Technical Field

[0001] The present application relates to the field of cleaning equipment, and specifically to a cleaning device. Background Art

[0002] As people's living standards improve, cleaning equipment is used more and more widely in life or work.

[0003] In order to improve the filtration effect of the filter inside the cleaning equipment, some cleaning equipment is equipped with a pre-filter for preliminary coarse filtration. Generally, the pre-filter is installed on the suction head of the cleaning equipment. When the pre-filter needs to be removed, the suction head needs to be removed from the dirt collection bucket first, which is inconvenient. Summary of the Invention

[0004] Multiple embodiments in this specification provide a cleaning device that allows for easy removal of a pre-filter.

[0005] An embodiment of the present specification provides a cleaning device, comprising a dirt collection bucket and a suction head capable of being assembled to the dirt collection bucket, the suction head comprising a housing, a motor, and a filter assembly, the housing comprising a motor accommodating chamber and a filter accommodating chamber, the motor accommodating chamber and the filter accommodating chamber being fluidically connected via a motor suction port; the motor and the filter assembly are respectively accommodated in the motor accommodating chamber and the filter accommodating chamber, the filter accommodating chamber having an opening; the housing comprising a cover capable of opening or closing the opening, the filter assembly being capable of entering and exiting the filter accommodating chamber through the opening along a first axis;

[0006] The filter assembly includes a main filter and a pre-filter, wherein the main filter is closer to the motor suction port and the opening than the pre-filter, and a projection of the main filter in the direction of the first axis covers a projection of the pre-filter in the direction of the first axis.

[0007] In some embodiments, the motor accommodating chamber and the filter accommodating chamber are arranged along a first direction, the first direction is perpendicular to the direction of the first axis, and the first axis is parallel to the central axis of the motor.

[0008] In some embodiments, the pre-filter includes a first connecting structure, and the inner wall of the filter accommodating chamber has a second connecting structure that matches the first connecting structure; the first connecting structure can be switched between a first state and a second state under the action of an external force; when the first connecting structure is in the first state, the first connecting structure and the second connecting structure are fixedly connected, so that the pre-filter and the inner wall of the filter accommodating chamber are fixedly connected; when the first connecting structure is in the second state, the first connecting structure and the second connecting structure can be disengaged so that the pre-filter can be removed from the filter accommodating chamber.

[0009] In some embodiments, the first connecting structure includes a snap-fit plug-in and an elastic member arranged on one side of the pre-filter, and the snap-fit plug-in is arranged on the outside of the elastic member; the elastic member can undergo elastic deformation so that the first connecting structure switches from the first state to the second state, or from the second state to the first state.

[0010] In some embodiments, the elastic member has an operating portion disposed at one end close to the opening of the filter accommodating cavity; an operating space is provided between a side wall of the filter accommodating cavity and the operating portion.

[0011] In some embodiments, a limiting groove is further provided on the inner wall of the filter accommodating cavity, and the limiting groove is provided on the opposite side of the card slot; and a limiting plug-in matching the limiting groove is provided on the pre-filter.

[0012] In some embodiments, a connecting piece is further provided on the outer side surface of the pre-filter; and a limiting piece matching the connecting piece is provided on the inner wall of the filter accommodating cavity.

[0013] In some embodiments, the cover is rotatably connected to a side wall on one side of the opening of the filter accommodating cavity.

[0014] In some embodiments, the pre-filter comprises a filter wall comprising a grid frame and a filter screen covering grids of the grid frame.

[0015] In some embodiments, a handle is provided on one side of the main filter close to the opening of the filter accommodating cavity.

[0016] In the multiple embodiments provided in this specification, the filter accommodating chamber has an opening, and the filter assembly (including the main filter and the pre-filter) can enter and exit the filter accommodating chamber through the opening. Therefore, when the pre-filter needs to be removed, there is no need to remove the suction head from the dirt collection bucket, and the operation is simpler. Furthermore, the main filter is closer to the motor suction port and the opening than the pre-filter, and the projection of the main filter in the direction of the first axis covers the projection of the pre-filter in the direction of the first axis, that is, the filter accommodating chamber presents a tapered structure with a larger upper portion and a smaller lower portion. In this way, after the cover body opens the opening, the main filter can be removed first and then the pre-filter below. The pre-filter will not interfere with the inner wall of the filter accommodating chamber during the disassembly process, thereby ensuring the smoothness of the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a cleaning device provided in accordance with one embodiment of the present disclosure.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the suction head.

[0019] Figure 3 for Figure 1 A partial enlarged view of middle A.

[0020] Figure 4 for Figure 1 A partial enlarged view of B.

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the pre-filter.

[0022] Figure 6 for Figure 5 A schematic structural diagram of the pre-filter from another perspective is shown.

[0023] Figure 7 for Figure 1 Schematic diagram of the structure of the main filter.

[0024] Description of Reference Numerals

[0025] 100. Cleaning device; 110. Dirt collection bucket; 120. Suction head; 121. Shell; 1211. Motor accommodating chamber; 1212. Filter accommodating chamber; 1213. Opening; 1214. Cover; 122. Motor; 123. Filter assembly; 1231. Main filter; 1231a. Handle; 1232. Pre-filter; 1232a. Filter wall; 1232b. Grille frame; 1232c. Filter screen; 124. First connecting structure; 1241. Snap-fit plug-in; 1242. Elastic member; 1243. Operating portion; 125. Second connecting structure; 1251. Snap-fit slot; 1261. Limiting groove; 1262. Limiting plug-in; 1271. Joint; 1272. Limiting member; 01. First axis; aa. First direction. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0027] In the embodiments of the present application, the drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features.

[0028] Unless otherwise indicated, all technical and scientific terms used in the embodiments of this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of this specification. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the scope of this specification. The term "and / or" used in this specification includes any and all combinations of one or more related listed items. The singular forms "a", "above", and "the" used in the embodiments of this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0029] In the description of the embodiments of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of a simplified description of this application, and do not indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation to this application.

[0031] In this application, unless otherwise expressly defined, the terms "installed," "connected," "connect," "fixed," and "disposed" should be interpreted broadly. For example, "connection" can mean fixed, removable, or integrated; it can mean mechanical or electrical; it can mean direct or indirect connection through an intermediary; it can also mean internal communication between two components or an interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] In the present application, unless otherwise explicitly defined, when a first feature is “on,” “above,” “above,” “above,” “below,” “below,” or “below” a second feature, the first feature and the second feature may be in direct contact, or the first feature and the second feature may be in indirect contact via an intermediate medium. Moreover, when a first feature is “on,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0033] See also Figures 1 to 7, the cleaning device 100 provided in one embodiment of the present specification includes a dirt collection bucket 110 and a suction head 120 that can be assembled to the dirt collection bucket 110, and the suction head 120 includes a shell 121, a motor 122 and a filter assembly 123. The shell 121 has a motor accommodating chamber 1211 and a filter accommodating chamber 1212, and the motor accommodating chamber 1211 and the filter accommodating chamber 1212 are fluidically connected through a motor suction port (not shown). The motor 122 and the filter assembly 123 are respectively accommodated in the motor accommodating chamber 1211 and the filter accommodating chamber 1212, and the filter accommodating chamber 1212 has an opening 1213; the shell 121 includes a cover body 1214 that can open or close the opening 1213, and the filter assembly 123 can enter and exit the filter accommodating chamber 1212 through the opening 1213 along the direction of the first axis 01. Wherein, the direction of the first axis 01 refers to Figure 2 The filter assembly 123 includes a main filter 1231 and a pre-filter 1232 , wherein the main filter 1231 is closer to the motor suction port and the opening 1213 than the pre-filter 1232 , and the projection of the main filter 1231 in the direction of the first axis 01 covers the projection of the pre-filter 1232 in the direction of the first axis 01 .

[0034] In the cleaning device 100, the filter housing 1212 has an opening 1213, and the filter assembly 123 can enter and exit the filter housing 1212 through the opening 1213. Therefore, when the pre-filter 1232 needs to be removed, the suction head 120 does not need to be removed from the dirt collection barrel 110, which makes the operation easier.

[0035] The main filter 1231 is closer to the opening 1213 than the pre-filter 1232. Therefore, when removing the filter assembly 123 from the filter accommodating chamber 1212, the main filter 1231 is first removed from the opening 1213, and then the pre-filter 1232 is removed from the opening 1213. When placing the filter assembly 123 into the filter accommodating chamber 1212, the pre-filter 1232 is first placed into the filter accommodating chamber 1212 through the opening 1213, and then the main filter 1231 is placed into the filter accommodating chamber 1212 through the opening 1213. It is understood that the main filter 1231 and the pre-filter 1232 can be integrated, that is, the main filter 1231 and the pre-filter 1232 are mechanically connected; the main filter 1231 and the pre-filter 1232 can also be split, that is, the main filter 1231 and the pre-filter 1232 are respectively provided independently and have no mechanical connection relationship. However, it is understandable that after the main filter 1231 and the pre-filter 1232 are installed in the filter accommodating chamber 1212 , the positions of the main filter 1231 and the pre-filter 1232 are relatively fixed.

[0036] It is understood that the function of the pre-filter 1232 is to initially filter the fluid drawn into the cleaning device 100, intercepting larger particles and providing cleaner fluid to the main filter 1231, allowing the main filter 1231 to focus on filtering smaller particles. In other words, the fluid drawn into the cleaning device 100 first passes through the pre-filter 1232 and then passes through the main filter 1231.

[0037] It is understood that the motor suction port refers to the inlet for fluid inflow in the motor accommodating chamber 1211. Along the direction of fluid flow in the cleaning device 100, the filter accommodating chamber 1212 is located upstream of the motor accommodating chamber 1211, that is, after flowing through the filter accommodating chamber 1212, the fluid flows into the motor accommodating chamber 1211 through the motor suction port.

[0038] In addition, the setting of the opening 1213 allows the main filter 1231 and the pre-filter 1232 to be removed and installed through the opening 1213 without disassembling the suction head 120, thereby reducing the number of times the suction head 120 is disassembled, avoiding the stability of the connection between the suction head 120 and the dirt collection barrel 110 due to multiple disassemblies, and improving the service life of the cleaning device 100.

[0039] Furthermore, a cover 1214 is provided at the opening 1213 . When the filter assembly 123 does not need to enter or exit through the opening 1213 , the cover 1214 can be used to block the opening 1213 , thereby preventing the fluid from flowing out through the opening 1213 .

[0040] Furthermore, the projection of the main filter 1231 in the direction of the first axis 01 covers the projection of the pre-filter 1232 in the direction of the first axis 01, and the filter accommodating chamber presents a tapered structure with a larger top and a smaller bottom. Therefore, in the process of removing the pre-filter 1232 from the filter accommodating chamber 1212, or in the process of placing the pre-filter 1232 in the filter accommodating chamber 1212, there is a gap between the pre-filter 1232 and the inner wall of the filter accommodating chamber 1212. The pre-filter will not interfere with the inner wall of the filter accommodating chamber during the disassembly process, which facilitates the removal and installation of the pre-filter 1232 and ensures the smoothness of the disassembly process.

[0041] In some embodiments, the motor accommodating chamber 1211 and the filter accommodating chamber 1212 are arranged along a first direction aa, which is perpendicular to the direction of the first axis O1, and the first axis O1 is parallel to the central axis of the motor 122. Thus, on the one hand, the length of the motor accommodating chamber 1211 and the filter accommodating chamber 1212 along the first direction aa can be reduced, and the overall height of the motor accommodating chamber 1211 and the filter accommodating chamber 1212 along the direction of the first axis O1 can also be reduced, facilitating the miniaturization of the cleaning device 100. On the other hand, interference between the motor accommodating chamber 1211 and the filter accommodating chamber 1212 can be avoided, thereby facilitating the removal and replacement of the filter assembly 123.

[0042] In this embodiment, the pre-filter 1232 includes a first connecting structure 124, and the inner wall of the filter accommodating chamber 1212 has a second connecting structure 125 that matches the first connecting structure 124; the first connecting structure 124 can switch between the first state and the second state under the action of external force; when the first connecting structure 124 is in the first state, the first connecting structure 124 and the second connecting structure 125 are fixedly connected, so that the pre-filter 1232 and the inner wall of the filter accommodating chamber 1212 are fixedly connected; when the first connecting structure 124 is in the second state, the first connecting structure 124 and the second connecting structure 125 can be detached, so that the pre-filter 1232 can be removed from the filter accommodating chamber 1212.

[0043] Specifically, in this embodiment, the first connecting structure 124 includes a snap-fit plug 1241 and an elastic member 1242 disposed on one side of the pre-filter 1232. The snap-fit plug 1241 is disposed on the outside of the elastic member 1242. The elastic member 1242 can be elastically deformed to switch the first connecting structure 124 from the first state to the second state, or from the second state to the first state.

[0044] Specifically in this embodiment, the elastic member 1242 undergoes elastic deformation under the action of external force, so that the first connection structure 124 switches from the first state to the second state; after the external force is removed, the elastic member 1242 relies on its own elastic recovery until the first connection structure 124 returns to the first state.

[0045] It can be understood that the locking plug-in 1241 is arranged on the outside of the elastic member 1242, so the elastic member 1242 undergoes elastic deformation, which can drive the locking plug-in 1241 to move, thereby changing the state of the locking plug-in 1241, that is, changing the state of the first connecting structure 124.

[0046] It will be appreciated that the first connecting structure 124 and the second connecting structure 125 match, and therefore, the second connecting structure 125 includes a snap-in slot 1251 that matches the snap-in plug 1241. When the first connecting structure 124 is in the first state, the snap-in plug 1241 is inserted into the snap-in slot 1251. When the first connecting structure 124 is in the second state, the snap-in plug 1241 is withdrawn from the snap-in slot 1251, thereby removing the position restriction of the snap-in plug 1241 by the snap-in slot 1251. This allows the first connecting structure 124 and the second connecting structure 125 to disengage, thereby allowing the pre-filter 1232 to be removed from the filter accommodating chamber 1212.

[0047] In this embodiment, the elastic member 1242 has an operating portion 1243 disposed at one end of the opening 1213 of the filter accommodating chamber 1212 ; an operating space is provided between the side wall of the filter accommodating chamber 1212 and the operating portion 1243 , thereby facilitating operation of the operating portion 1243 .

[0048] In this embodiment, a limiting groove 1261 is further provided on the inner wall of the filter accommodating chamber 1212, and the limiting groove 1261 is located on the opposite side of the second connecting structure 125. A limiting plug 1262 is provided on the pre-filter 1232 to match the limiting groove 1261. The provision of the limiting plug 1262 and the limiting groove 1261 can also limit the position of the pre-filter 1232 and the side wall of the filter accommodating chamber 1212, so that when the pre-filter 1232 is fixedly connected to the side wall of the filter accommodating chamber 1212, both sides of the pre-filter 1232 are subjected to balanced force, avoiding the phenomenon of concentrated force on one side of the pre-filter 1232, and also making the pre-filter 1232 more stably installed in the filter accommodating chamber 1212.

[0049] Furthermore, when installing the pre-filter 1232, since the retaining groove 1261 is located on the opposite side of the second connecting structure 125, the retaining plug 1262 can be first inserted into the retaining groove 1261 before connecting the first connecting structure 124 and the second connecting structure 125. It is understood that the elastic deformation of the elastic member 1242 allows the retaining plug 1262 to be more smoothly inserted into the retaining groove 1261.

[0050] In this embodiment, a bridging member 1271 is further provided on the outer side of the pre-filter 1232; a retaining member 1272 that matches the bridging member 1271 is provided on the inner wall of the filter accommodating chamber 1212. It is understood that the bridging member 1271 is located on the side of the retaining member 1272 that is adjacent to the opening 1213 of the filter accommodating chamber 1212. During use or placement, if the opening 1213 of the filter accommodating chamber 1212 is facing upward or diagonally upward, the bridging member 1271 and the retaining member 1272 overlap to overcome the weight of the pre-filter 1232, allowing the pre-filter 1232 to be stably installed within the filter accommodating chamber 1212.

[0051] In addition, the arrangement of the limiting member 1272 and the connecting member 1271 can also position the pre-filter 1232 when the pre-filter 1232 is installed, so as to achieve rapid installation of the pre-filter 1232.

[0052] Specifically, in this embodiment, each outer side surface of the pre-filter 1232 is provided with a connecting piece 1271 .

[0053] In this embodiment, the cover 1214 is rotatably connected to the sidewall of the opening 1213 of the filter accommodating chamber 1212. Therefore, when the cover 1214 is closed over the opening 1213 of the filter accommodating chamber 1212, the cover 1214 and the filter accommodating chamber 1212 can be positioned more quickly and accurately, thereby improving operating efficiency.

[0054] In addition, the cover body 1214 is rotatably connected to the side wall of the opening 1213 of the filter accommodating chamber 1212. Therefore, after the opening 1213 of the filter accommodating chamber 1212 is opened, the cover body 1214 is still connected to the side wall of the filter accommodating chamber 1212, preventing the cover body 1214 from being arbitrarily placed in other positions. Therefore, when the opening 1213 is closed again, the position of the cover body 1214 can be quickly determined, thereby improving operational efficiency.

[0055] In this embodiment, the pre-filter 1232 includes a filter wall 1232a, which includes a grid frame 1232b and a filter screen 1232c covering the grid of the grid frame 1232b. That is, the filter screen 1232c intercepts larger particles.

[0056] In this embodiment, a handle 1231a is provided on one side of the main filter 1231 near the opening 1213 of the filter accommodating chamber 1212. The provision of the handle 1231a facilitates removal of the main filter 1231 from the filter accommodating chamber 1212 and also prevents the operator's hands from excessively coming into contact with dust on the main filter 1231 when removing the main filter 1231, thereby keeping the operator's hands clean during operation.

[0057] It can be understood that in the various implementations of this specification, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the implementation methods of this specification.

[0058] It can be understood that the various embodiments described in this specification can be implemented individually or in combination, and the embodiments in this specification are not limited to this.

[0059] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, devices and units can refer to the corresponding processes in the aforementioned method implementation methods and will not be repeated here.

[0060] The above description is merely a specific embodiment of this specification, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this specification should be included within the scope of protection of this specification. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A cleaning device, comprising a dirt collection bucket and a suction head capable of being assembled to the dirt collection bucket, the suction head comprising a housing, a motor, and a filter assembly, the housing comprising a motor accommodating chamber and a filter accommodating chamber, the motor accommodating chamber and the filter accommodating chamber being fluidically connected via a motor suction port; the motor and the filter assembly being respectively accommodated in the motor accommodating chamber and the filter accommodating chamber, the filter accommodating chamber having an opening; the housing comprising a cover capable of opening or closing the opening, the filter assembly being capable of entering and exiting the filter accommodating chamber through the opening along a first axis; and characterized in that: The filter assembly includes a main filter and a pre-filter, wherein the main filter is closer to the motor suction port and the opening than the pre-filter, and a projection of the main filter in the direction of the first axis covers a projection of the pre-filter in the direction of the first axis.

2. The cleaning device according to claim 1, characterized in that The motor accommodating chamber and the filter accommodating chamber are arranged along a first direction, the first direction is perpendicular to the direction of the first axis, and the first axis is parallel to the central axis of the motor.

3. The cleaning device according to claim 1 or 2, characterized in that The pre-filter includes a first connecting structure, and the inner wall of the filter accommodating chamber has a second connecting structure that matches the first connecting structure; the first connecting structure can be switched between a first state and a second state under the action of an external force; when the first connecting structure is in the first state, the first connecting structure and the second connecting structure are fixedly connected, so that the pre-filter and the inner wall of the filter accommodating chamber are fixedly connected; when the first connecting structure is in the second state, the first connecting structure and the second connecting structure can be disengaged, so that the pre-filter can be removed from the filter accommodating chamber.

4. The cleaning device according to claim 3, characterized in that The first connecting structure includes a snap-fit plug-in and an elastic member arranged on one side of the pre-filter, and the snap-fit plug-in is arranged on the outside of the elastic member; the elastic member can undergo elastic deformation so that the first connecting structure switches from the first state to the second state, or from the second state to the first state.

5. The cleaning device according to claim 4, characterized in that The elastic member has an operating portion arranged at one end close to the opening of the filter accommodating cavity; an operating space is provided between the side wall of the filter accommodating cavity and the operating portion.

6. The cleaning device according to claim 3, characterized in that A limiting groove is further provided on the inner wall of the filter accommodating cavity, and the limiting groove is provided on the opposite side of the second connecting structure; and a limiting plug-in matching the limiting groove is provided on the pre-filter.

7. The cleaning device according to claim 3, characterized in that The outer side surface of the pre-filter is further provided with a bridging piece; the inner wall of the filter accommodating cavity is provided with a limiting piece that matches the bridging piece.

8. The cleaning device according to claim 1 or 2, characterized in that: The cover body is rotatably connected to a side wall on one side of the opening of the filter accommodating cavity.

9. The cleaning device according to claim 1 or 2, characterized in that: The pre-filter includes a filter wall including a grid frame and a filter mesh covering grids of the grid frame.

10. The cleaning device according to claim 1 or 2, characterized in that: A handle is provided on one side of the main filter close to the opening of the filter accommodating cavity.

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