A cleaning device

Abstract

This invention discloses a cleaning device, comprising: a main body having a suction port and at least one outlet communicating with the suction port; a main unit having a first state mounted on the main body and a second state separated from the main body; the main unit includes at least a dust-air separation unit, a dust inlet structure for dust-air to flow into the dust-air separation unit, and a main motor for generating negative pressure for dust-air to flow into the dust-air separation unit through the dust inlet structure; the dust inlet structure includes at least one dust-air inlet; in the first state, the dust-air inlet and outlet are connected for dust-air to enter the dust-air separation unit through the suction port; in the second state, the dust-air inlet and outlet are separated for dust-air to enter the dust-air separation unit through the dust inlet.

Description

Technical Field

[0001] This invention belongs to the field of cleaning equipment technology, and specifically relates to a cleaning device. Background Technology

[0002] Vacuum cleaners can be categorized by structure into upright, canister, and portable types. The working principle of a vacuum cleaner is that an electric motor drives blades to rotate at high speed, creating negative air pressure within a sealed casing to suck up dust and debris. To ensure good stability and ease of operation for upright vacuum cleaners, the motor and dust separation unit are typically positioned close to the floor brush assembly, thus lowering the center of gravity of the upright vacuum cleaner.

[0003] In existing upright vacuum cleaners, the main unit is directly mounted on the body of the vacuum cleaner. This means that the main unit can only perform vacuuming operations by attaching itself to the main body, which greatly limits its application. Therefore, it is necessary to improve the existing technology to overcome the aforementioned shortcomings. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a cleaning device whose main unit is detachably mounted on the main body of the device, which has the advantage of being easy to use.

[0005] To solve the above-mentioned technical problems, the present invention provides a cleaning device, comprising: a main body having a suction port and at least one outlet communicating with the suction port; a main unit having a first state mounted on the main body and a second state separated from the main body; the main unit includes at least a dust-air separation unit, a dust inlet structure for dust-air to flow into the dust-air separation unit, and a main motor for generating negative pressure for dust-air to flow into the dust-air separation unit through the dust inlet structure; the dust inlet structure includes at least one dust-air inlet; in the first state, the dust-air inlet is communicating with the outlet for dust-air to enter the dust-air separation unit through the suction port; in the second state, the dust-air inlet is separated from the outlet for dust-air to enter the dust-air separation unit through the dust inlet.

[0006] Preferably, in the aforementioned cleaning equipment, the main body further includes a dust suction channel, which is connected to the dust suction port and the outlet; the main unit also includes a dust and gas separation channel connected to the dust and gas separation unit, and the main motor is used to generate negative pressure in the dust and gas separation channel; the dust inlet structure includes two dust and gas inlets, namely a first dust and gas inlet and a second dust and gas inlet provided on the dust and gas separation channel; in a first state, one of the first dust and gas inlet and the second dust and gas inlet is in an open state to connect with the outlet, and the other dust and gas inlet is in a closed state; in a second state, at least one of the first dust and gas inlet and the second dust and gas inlet is in an open state to allow dust and gas to enter the dust and gas separation unit.

[0007] Preferably, in the first state, the dust-gas separation channel and the suction channel of the above-mentioned cleaning equipment are arranged side by side; the outlet is located on the side wall of the suction channel; the first dust-gas inlet is located at the far end of the dust-gas separation channel; the second dust-gas inlet is located on the side wall of the dust-gas separation channel; in the first state, the second dust-gas inlet is sealed and connected to the outlet, and the first dust-gas inlet is in a closed state.

[0008] Preferably, in the aforementioned cleaning equipment, the main body of the machine is provided with a first sealing member extending toward its proximal end; in a first state, the first sealing member is sealed and inserted into the first dust and gas inlet; in a second state, the first sealing member is removed from the first dust and gas inlet.

[0009] Preferably, in the above-mentioned cleaning equipment, the main unit component further includes an air inlet pipe for conveying dust gas, and the dust gas separation channel is formed on the air inlet pipe; the first dust gas inlet and the second dust gas inlet are provided on the air inlet pipe; in a first state, the air inlet pipe is installed on the outer wall of the main body of the machine body, so that the main unit component is installed on the main body of the machine body.

[0010] Preferably, in the aforementioned cleaning equipment, a second sealing element is provided at the second dust inlet. The second sealing element is slidably disposed on the outer wall of the main unit where the second dust inlet is located along the length direction of the main body. The main unit is also provided with a first switching mechanism, which includes a first elastic element disposed on the main unit. The second sealing element tends to remain closed by the biasing force exerted by the first elastic element. A first actuating element is provided on the outer wall of the main body. In the first state, the first actuating element and the first elastic element are distributed on both sides of the second sealing element, and the first actuating element applies a actuating force opposite to the biasing force to the second sealing element, forcing the second sealing element to slide to open the second dust inlet.

[0011] Preferably, in the above-mentioned cleaning equipment, the first switching mechanism further includes a valve housing disposed on the outer wall of the main unit; the valve housing has a mounting cavity extending along the sliding direction of the second sealing member, and the valve housing is provided with an opening for the second sealing member to pass through, the opening of the valve housing being disposed near the second dust inlet side; the first elastic member is disposed in the mounting cavity, and its two ends are respectively disposed on the mounting cavity and the second sealing member; in a first state, the second sealing member retracts into the mounting cavity; in a second state, the second sealing member extends out of the mounting cavity to close the second dust inlet.

[0012] Preferably, in the above-mentioned cleaning equipment, the main body is provided with a traveling frame; the main unit is mounted on the main body via the traveling frame; the traveling frame is provided with a dust and air inlet; the first actuating member is mounted on the traveling frame; in the first state, the outlet is sealed and connected to the second dust and air inlet via the dust and air inlet.

[0013] Preferably, the aforementioned cleaning equipment also includes a traveling frame mounted on the main body of the machine; the main unit is mounted on the main body of the machine via the traveling frame; the traveling frame is provided with a dust and gas inlet; in the first state, the outlet is sealed and connected to the second dust and gas inlet via the dust and gas inlet.

[0014] Preferably, in the aforementioned cleaning equipment, a bottom plate is formed on the gantry frame, the bottom plate being used for upper limit positioning in the longitudinal direction of the main body; when the main unit is held on the gantry frame, the bottom plate closes the first dust inlet, so that the first dust inlet is in a closed state.

[0015] Preferably, in the above-mentioned cleaning equipment, the main unit is further provided with an air inlet pipe, which cooperates with the gantry frame to keep the main unit on the gantry frame in the first state; the first dust inlet is located at the free end of the air inlet pipe, and the second dust inlet is located on the side wall of the air inlet pipe.

[0016] Preferably, the aforementioned cleaning equipment further includes a trolley frame, which is liftably mounted on the main body of the machine. The trolley frame has a dust and air inlet structure communicating with the suction port, and the dust and air inlet structure includes at least a dust and air outlet. The main unit is detachably connected to the main body of the machine by being detachably mounted on the trolley frame. The main unit also includes a second sealing member slidably disposed on the dust and air inlet. In a first state, the trolley frame pushes open the second sealing member so that dust and air flow through the suction port, the dust and air inlet structure, and the dust and air outlet structure into the dust and air separation unit. In a second state, when the main unit is separated from the trolley frame, the dust and air flow directly into the dust and air separation unit through the dust and air outlet structure.

[0017] Preferably, in the aforementioned cleaning equipment, the gantry frame includes a loading section for cooperating with the main unit to hold the main unit on the gantry frame, and a connecting section provided on the loading section for connecting with the main body of the machine; wherein the dust inlet is provided on the loading section.

[0018] Preferably, in the aforementioned cleaning equipment, the sidewall of the main unit is slidably disposed on the loading section along the longitudinal direction of the main body.

[0019] Preferably, in the aforementioned cleaning equipment, the loading section is provided with a bottom plate perpendicular to its extending direction; in a first state, the distal end of the main unit abuts against the bottom plate, and the bottom plate at least partially bears the weight of the main unit.

[0020] Preferably, in the aforementioned cleaning equipment, the main body is provided with a first sealing member extending toward its proximal end, the first sealing member being disposed on the bottom end plate; a dust inlet is distributed at the distal end of the dust separation channel; in a first state, the first sealing member is sealed and inserted into the first dust inlet at the distal end, so that the distal end of the main unit abuts against the bottom end plate.

[0021] Preferably, in the aforementioned cleaning equipment, the trolley frame has at least a first working position and a second working position in the longitudinal direction of the main body. The main body has an outlet corresponding to the first and second working positions of the trolley frame, respectively, located near the far and near ends of the main body. The trolley frame is vertically and vertically positioned between the first and second working positions of the main body. In the first working position (first state), the first outlet is open and connected to the dust inlet, while the second outlet is closed. In the second working position (first state), the second outlet is open and connected to the dust inlet, while the first outlet is closed.

[0022] Preferably, the cleaning equipment described above also includes a first valve and a second valve, which are slidably disposed on the first outlet and the second outlet, respectively; in the first working position, the first valve opens the first outlet and the second valve closes the second outlet; in the second working position, the first valve closes the first outlet and the second valve opens the second outlet.

[0023] Preferably, in the aforementioned cleaning equipment, when the main unit is in the first state and the main unit is running to the first working position, the trolley frame abuts against the first valve and applies a pulling force to the first valve in the direction of the distal end of the main body, so as to switch the first valve from the closed state to the open state; when the main unit is in the first state and the main unit is running to the second working position, the trolley frame abuts against the second valve and applies a pulling force to the second valve in the direction of the proximal end of the main body, so as to switch the second valve from the closed state to the open state.

[0024] Preferably, in the above-described cleaning equipment, the main unit further includes a battery pack for supplying electrical energy to the main motor; in a first state, the main unit has the battery pack, the main motor, and the dust-air separation unit sequentially distributed along the proximal to distal end of the main body; or, the main unit has the dust-air separation unit, the main motor, and the battery pack sequentially distributed along the proximal to distal end of the main body.

[0025] Preferably, the cleaning equipment described above further includes a drive unit for driving the trolley frame to move up and down on the main body; the drive unit is powered by the battery pack of the main unit; and / or a braking structure is provided at the end of the lifting path of the trolley frame, the braking structure including a brake elastic element, and the end of the trolley frame brakes by squeezing the brake elastic element.

[0026] Preferably, in the aforementioned cleaning equipment, the main motor and the dust-gas separation unit are coaxial, with the first dust-gas inlet opening in a direction parallel to the axis and the second dust-gas inlet opening in a direction perpendicular to the axis.

[0027] Preferably, the cleaning device described above also includes a floor brush unit located at the far end of the main body and a handle located at the near end of the main body; the suction port is located on the floor brush unit.

[0028] The present invention also provides a cleaning device, comprising: a main body; a trolley frame, the trolley frame being liftably mounted on the main body, the trolley frame having a first working position and a second working position on the main body, and a first outlet and a second outlet respectively formed on the main body corresponding to the first working position and the second working position of the trolley frame; and a main unit assembly detachably connected to the trolley frame; wherein, when the trolley frame moves to the first working position, dust gas sucked in through the main body enters the main unit assembly through the first outlet, and when the trolley frame moves to the second working position, dust gas sucked in through the main body enters the main unit assembly through the second outlet.

[0029] The technical solution provided by this invention has the following advantages:

[0030] 1. The main unit is detachably mounted on the main body of the machine, and the dust inlet on the main unit and the outlet on the main body of the machine can switch the air path depending on whether the main unit is installed on the main body of the machine or separated from the main body of the machine, which has the advantage of being easy to use.

[0031] 2. The main unit can be raised and lowered on the main body of the machine via a trolley frame, thereby making it easy to adjust the position of the main unit relative to the main body of the machine to achieve cleaning of open and closed spaces; and the main body of the machine has a first outlet and a second outlet respectively at the first working position and the second working position of the trolley frame, and the switching of different air paths can be realized through the first outlet and the second outlet, which has the advantages of simple structure and convenient use. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 A three-dimensional structural diagram of the cleaning equipment provided by the present invention;

[0034] Figure 2 for Figure 1 A three-dimensional structural diagram of the host component;

[0035] Figure 3 for Figure 1 A schematic diagram of the structure of the host component in the front view direction;

[0036] Figure 4 for Figure 1 A schematic diagram showing the positional relationship between the main fuselage and the overhead crane frame;

[0037] Figure 5 for Figure 4 A schematic diagram of the central frame;

[0038] Figure 6 for Figure 5 Enlarged structural diagram of region A in the middle;

[0039] Figure 7 This is a schematic diagram of the overhead crane frame in the first working position according to the present invention;

[0040] Figure 8This is a schematic diagram of the overhead crane frame in the second working position according to the present invention;

[0041] Figure 9 This is a schematic diagram showing the positional relationship between the overhead crane and the drive unit in this invention;

[0042] Figure 10 This is a schematic diagram showing the positional relationship between the first valve adjusting mechanism, the second valve adjusting mechanism, and the main body of the machine in this invention.

[0043] Figure 11 This is a schematic diagram showing the first outlet in the open state and the second outlet in the closed state in this invention.

[0044] Figure 12 This is a schematic diagram showing the first outlet in the closed state and the second outlet in the open state in this invention.

[0045] Figure 13 This is a schematic diagram showing the positional relationship between the first valve regulating mechanism and the first valve in this invention;

[0046] Figure 14 This is a schematic diagram showing the positional relationship between the second valve regulating mechanism and the second valve in this invention.

[0047] Explanation of reference numerals in the attached figures:

[0048] 110-Main body; 111-First outlet; 1111-First valve; 1112-Limiting flange; 112-Second outlet; 1121-Second valve; 113-First valve adjusting mechanism; 114-Second valve adjusting mechanism; 120-Floor brush unit; 130-Handle; 131-Control switch; 200-Tractor frame; 210-Loading section; 211-Bottom plate; 212-First sealing element; 213-First actuating element; 214 - Slot; 2141 - Bending section; 230 - Dust and gas inlet; 300 - Main unit assembly; 310 - Air inlet pipe; 311 - First dust and gas inlet; 312 - Second dust and gas inlet; 313 - Second sealing component; 315 - Positioning rib; 316 - First switching mechanism; 3161 - First elastic component; 3162 - Valve housing; 320 - Dust and gas separation unit; 330 - Main unit switch; 400 - Drive unit; 410 - Braking structure; 420 - Drive motor. Detailed Implementation

[0049] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0050] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0051] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0052] Please see Figure 1 As shown, this embodiment provides a cleaning device, including: a main body 110, a main unit assembly 300 disposed on the main body 110, a floor brush unit 120 disposed at the far end of the main body 110, and a handle 130 disposed at the near end of the main body 110.

[0053] The terms "proximal" and "remote" mentioned above are relative to the user. The term "proximal" refers to the part that is relatively close to the user, while the term "remote" refers to the part that is relatively far from the user.

[0054] In an illustrative scenario, the cleaning device is an upright vacuum cleaner for cleaning floors. The floor brush unit 120 has a suction port (not shown in the figure), which, under the action of the main unit 300, sucks up dirt (dust, debris, and hair, etc.) from the floor to be cleaned. The following description will primarily focus on the cleaning device as an upright vacuum cleaner.

[0055] In this embodiment, the main body 110 is elongated and rod-shaped. The main body 110 has at least one outlet communicating with the suction port. The main body 110 is internally hollow to form a suction channel (not shown in the figure). This suction channel connects the outlet on the main body 110 to the suction port on the floor brush unit 120. The outlet is located on the side wall of the suction channel, or in other words, the outlet is located on the side wall of the main body 110.

[0056] Please see Figure 2 and Figure 3 As shown, the main unit 300 includes at least a dust-gas separation unit 320, a dust inlet structure for supplying dust gas into the dust-gas separation unit 320, and a main motor (not shown in the figure) for generating negative pressure to supply dust gas into the dust-gas separation unit 320 through the aforementioned dust inlet structure. The dust inlet structure includes at least one dust gas inlet.

[0057] Furthermore, the main unit 300 also includes an air inlet pipe 310 for conveying dust gas to the dust gas separation unit 320. The air inlet pipe 310 is provided with a dust gas separation channel (not shown in the figure) communicating with the dust gas separation unit 320. The main motor is used to generate negative pressure in the dust gas separation channel so that the dust gas enters the dust gas separation unit 320 through the aforementioned dust gas separation channel. The aforementioned dust gas inlet is located on the dust gas separation channel (air inlet pipe 310) of the main unit 300.

[0058] In this embodiment, the host component 300 is detachably mounted on the main body 110. The host component 300 has a first state of being mounted on the main body 110 and a second state of being detached from the main body 110. The first state of the host component 300 being mounted on the main body 110 refers to the state when the host component 300 and the main body 110 are installed together as a whole. The second state of the host component 300 being detached from the main body 110 refers to the state when the host component 300 is removed from the main body 110.

[0059] When the main unit 300 is in its first state, the air intake pipe 310 is installed on the outer wall of the main body 110, thereby allowing the main unit 300 to be mounted on the main body 110. At this time, the dust-air separation channel on the main unit 300 and the dust suction channel on the main body 110 are arranged side by side. The dust-air inlet of the main unit 300 is connected to the outlet of the main body 110, so that dust and air can enter the dust-air separation unit 320 through the suction port of the floor brush unit 120.

[0060] When the main unit 300 is in the second state, it is separated from the main body 110, and the dust inlet is separated from the outlet of the main body 110. At this time, the dust flows directly into the dust separation unit 320 through the dust inlet structure. When the main unit 300 is separated from the main body 110, it can be used as a handheld vacuum cleaner.

[0061] In this embodiment, please refer to Figure 2 As shown, the dust inlet structure on the main unit 300 includes two dust inlets: a first dust inlet 311 and a second dust inlet 312, which are located on the dust separation channel. In other words, the air inlet pipe 310 is equipped with the first dust inlet 311 and the second dust inlet 312. The air path can be switched depending on whether the main unit 300 is installed on or separated from the main body 110, offering the advantage of ease of use.

[0062] In the first state, when the main unit 300 is in the first state, one of the first dust inlet 311 and the second dust inlet 312 is open to communicate with the outlet on the main body 110, while the other dust inlet is closed. In the second state, at least one of the first dust inlet 311 and the second dust inlet 312 is open to allow external dust to enter the dust separation unit 320.

[0063] In this embodiment, the first dust inlet 311 is located at the far end of the dust separation channel; the second dust inlet 312 is located on the side wall of the dust separation channel. That is, the first dust inlet 311 is located at the free end of the air inlet pipe 310, and the second dust inlet 312 is located on the side wall of the air inlet pipe 310.

[0064] Preferably, the main motor and the dust-gas separation unit 320 are coaxial, with the first dust-gas inlet 311 opening in a direction parallel to the axis and the second dust-gas inlet 312 opening in a direction perpendicular to the axis. When the main unit 300 is in the first state, the second dust-gas inlet 312 is sealed and connected to the outlet of the main body 110, and the first dust-gas inlet 311 is closed.

[0065] In this embodiment, please refer to Figure 4 and Figure 5 As shown, the main body 110 is provided with a first sealing member 212 extending towards its proximal end. When the main unit 300 is in the first state, the first sealing member 212 is sealed and inserted into the first dust inlet 311, thereby keeping the first dust inlet 311 in the closed state. When the main unit 300 is in the second state, the first sealing member 212 is disengaged from the first dust inlet 311, thereby keeping the first dust inlet 311 in the open state.

[0066] Specifically, the shape of the first sealing element 212 is the same as or substantially the same as the shape of the first dust gas inlet 311. Preferably, the first dust gas inlet 311 is a circular hole, and the first sealing element 212 is a cylinder that mates with the first dust gas inlet 311. Of course, the first dust gas inlet 311 and the first sealing element 212 can also be other shapes, which will not be elaborated here.

[0067] In this embodiment, please continue to refer to Figure 2 and Figure 3 As shown, a second sealing element 313 is provided at the second dust inlet 312. The second sealing element 313 is slidably provided on the outer wall of the main unit 300 where the second dust inlet 312 is located along the length direction of the main body 110.

[0068] Preferably, the second sealing member 313 is plate-shaped and adapted to the outer wall of the main unit 300. For example, when the outer wall of the main unit 300 is cylindrical, the second sealing member 313 is an arc plate; when the outer wall of the main unit 300 is planar, the second sealing member 313 is a straight plate. The aforementioned length direction refers to the direction from the far end to the near end of the fuselage body 110, or the direction from the near end to the far end of the fuselage body 110.

[0069] The positional relationship between the second sealing element 313 and the second dust inlet 312 can be one of two types: First, the second sealing element 313 covers the second dust inlet 312, meaning they completely overlap, and the second dust inlet 312 is closed. Second, the second sealing element 313 is located on one side of the second dust inlet 312, and the second dust inlet 312 is completely open, meaning it is in the open state. When the main unit 300 is installed on the main body 110,

[0070] Furthermore, the main unit 300 is also provided with a first switching mechanism 316, which is used to realize the sliding action of the second sealing member 313 on the outer wall of the main unit 300. The first switching mechanism 316 is located on the air inlet pipe 310 of the main unit 300, and includes a first elastic member 3161 and a valve housing 3162 located on the outer wall of the main unit 300 (on the outer wall of the air inlet pipe 310). The valve housing 3162 is internally hollow to form an installation cavity extending along the sliding direction of the second sealing member 313. The valve housing 3162 has an opening (not shown in the figure) for the second sealing member 313 to pass through, and the opening of the valve housing 3162 is located near the second dust inlet 312. The first elastic member 3161 is located in the installation cavity, and its two ends abut against the installation cavity and the second sealing member 313, respectively. The second sealing element 313 tends to remain closed by the bias pressure exerted by the first elastic element 3161 on the second dust gas inlet 312.

[0071] In this embodiment, please refer to Figure 5 As shown, a first actuating member 213 is provided on the outer wall of the main body 110. The first actuating member 213 is used to push the second sealing member 313 in the direction toward the near end of the main body 110 when the main unit 300 is installed on the main body 110 (in the first state).

[0072] The first actuating member 213 and the first elastic member 3161 are distributed on both sides of the second sealing member 313. The first actuating member 213 applies a actuating force to the second sealing member 313 in the opposite direction to the bias pressure, forcing the second sealing member 313 to slide back into the installation cavity to open the second dust gas inlet 312.

[0073] In this embodiment, after the main unit 300 is removed from the main body 110 (second state), the second sealing member 313 extends out of the mounting cavity under the action of the first elastic member 3161 and blocks the second dust inlet 312 to close the second dust inlet 312. At this time, the first sealing member 212 retracts from the first dust inlet 311, and the first dust inlet 311 is in the open state. Thus, the main unit 300 can draw in dust through the first dust inlet 311.

[0074] Understandably, when the main unit 300 is in the second state, both the first dust inlet 311 and the second dust inlet 312 can be in the open state. In the above situation, the first dust inlet 311 is used to draw in dust; the second dust inlet 312 is connected to the outside atmosphere, which can reduce the suction force at the first dust inlet 311.

[0075] In this embodiment, please continue to refer to Figure 1 As shown, the cleaning equipment also includes a traveling frame 200 mounted on the main body 110, and the main unit 300 is mounted on the main body 110 via the traveling frame 200. Specifically, the air intake pipe 310 of the main unit 300 cooperates with the traveling frame 200 so that the main unit 300 is held on the traveling frame 200 in the first state. As can be seen from the above, the main unit 300 is detachably connected to the main body 110 by being detachably mounted on the traveling frame 200.

[0076] Please refer to Figure 4 As shown, the overhead crane 200 is provided with a dust and air inlet structure that communicates with the dust suction port, and the dust and air inlet structure includes at least a dust and air port 230. In the first state, the outlet of the main body 110 of the main unit 300 is sealed and connected to the second dust and air inlet 312 through the aforementioned dust and air port 230.

[0077] Please continue reading. Figure 4 As shown, the overhead frame 200 includes a loading section 210 for engaging with the air intake pipe 310 of the main unit 300 to hold the main unit 300 on the overhead frame 200, and a connecting section 220 provided on the loading section 210 for connecting with the main body 110.

[0078] In this embodiment, the sidewall of the air intake pipe 310 of the main unit 300 is slidably disposed on the loading part 210 along the longitudinal direction of the main body 110. The aforementioned longitudinal direction refers to the direction from the proximal end to the distal end, or the direction from the distal end to the proximal end.

[0079] Please see Figure 5As shown, the loading section 210 includes a side panel 215 extending along the longitudinal direction of the main body 110 and a bottom end plate 211 disposed on the end of the side panel 215 near the side brush unit 120. Specifically, the cross-section of the side panel 215 is one of an arc, a circular arc, or a zigzag line, so as to form an accommodating space for accommodating the air intake pipe 310 together with the bottom end plate 211. The bottom end plate 211 is disposed along a direction perpendicular to the extension of the loading section 210 and is used to limit the main unit assembly 300 in the longitudinal direction of the main body 110. In the first state, the distal end of the main unit assembly 300 abuts against the bottom end plate 211, and the bottom end plate 211 at least partially bears the weight of the main unit assembly 300.

[0080] Furthermore, the aforementioned first actuating member 213 and dust inlet 230 are both disposed on the side panel 215 of the loading section 210. The first actuating member 213 is located above the dust inlet 230, and the first actuating member 213 is distributed along the installation direction (vertical direction) perpendicular to the main unit assembly 300. The first actuating member 213 has a long, raised edge. In this embodiment, during the installation of the main unit assembly 300 onto the gantry frame 200, the gantry frame 200 pushes open the aforementioned second sealing member 313, allowing dust to flow through the suction port, the dust inlet structure (dust inlet 230), and the dust inlet structure into the dust separation unit 320.

[0081] Furthermore, the bottom end plate 211 is provided with the aforementioned first sealing member 212. When the main unit 300 is held on the gantry frame 200, the first sealing member 212 is sealed and inserted into the first dust and gas inlet 311, and the bottom end plate 211 closes the first dust and gas inlet 311 so that the first dust and gas inlet 311 is in a closed state, and the distal end of the main unit 300 abuts against the bottom end plate 211.

[0082] In this embodiment, in order to facilitate the installation of the main unit 300 onto the crane frame 200 and ensure its proper retention on the crane frame 200, please refer to the following... Figure 5 and combined Figure 6 As shown, one of the loading section 210 and the air intake pipe 310 is provided with a slot 214 extending along the longitudinal direction of the fuselage body 110, and the other is provided with a retaining rib 315 that cooperates with the slot 214. The slot 214 and the retaining rib 315 are used for installation limiting between the main unit assembly 300 and the overhead crane frame 200.

[0083] For details, please continue reading Figure 5 and Figure 6As shown, the side panels 215 of the loading section 210 are provided with bent portions 2141 on both sides along the longitudinal direction of the fuselage body 110. The bent portions 2141 form the aforementioned slots 214 at both sides of the side panels 215. The outer wall of the air intake pipe 310 is provided with locking ribs 315 that cooperate with the slots 214.

[0084] Preferably, the side panel 215 has an arc-shaped cross-section, which is perpendicular to the longitudinal direction of the fuselage body 110. The slot 214 has a generally "V"-shaped cross-section. The rib 315 has a cross-sectional shape that matches the slot 214.

[0085] During the installation of the main unit 300, firstly, the locking ribs 315 on the outer wall of the air intake pipe 310 are aligned with the slots 214 on the side panel 215 to achieve installation positioning. Then, the air intake pipe 310 of the main unit 300 is inserted into the accommodating space of the loading part 210 from top to bottom. In the above process, the main unit 300 can be smoothly installed onto the gantry frame 200 through the interlocking action between the slots 214 and the locking ribs 315. After the main unit 300 is installed in place, the first sealing member 212 is sealed and inserted into the first dust inlet 311, and the distal end (free end) of the air intake pipe 310 abuts against the bottom plate 211.

[0086] In this embodiment, the main unit 300 also includes a battery pack (not shown in the figure) for providing power to the main motor. After the main unit 300 is mounted on the gantry frame 200, the battery pack, the main motor, and the dust-gas separation unit 320 are sequentially distributed on the main unit 300 in the direction from the proximal end to the distal end (from top to bottom) along the main body 110. Alternatively, the dust-gas separation unit 320, the main motor, and the battery pack are sequentially distributed on the main unit 300.

[0087] In the top-to-bottom direction, when the main unit 300 has the battery pack, main motor, and dust-gas separation unit 320 sequentially distributed on it, the main unit 300 has the advantage of simple and compact structure. In the top-to-bottom direction, when the main unit 300 has the dust-gas separation unit 320, main motor, and battery pack sequentially distributed on it, the main unit 300 can be well held on the overhead crane 200, resulting in stable and reliable operation.

[0088] In this embodiment, please refer to Figure 9As shown, the cleaning equipment also includes a drive unit 400, which drives the trolley frame 200 to move up and down on the main body 110. The drive unit 400 includes at least a drive motor 420, and the battery pack of the main unit 300 supplies power to the drive motor 420 to drive the trolley frame 200 to slide on the main body 110. In this embodiment, the drive unit 400 is a mechanism with linear reciprocating motion, such as a rack and pinion mechanism, a lead screw mechanism, or a linear module mechanism.

[0089] Please see Figure 1 , Figure 7 and Figure 8 As shown, the gantry frame 200 can be raised and lowered on the main body 110 under the action of the drive unit 400. The gantry frame 200 has at least a first working position and a second working position in the longitudinal direction of the main body 110. In this embodiment, the gantry frame 200 is raised and lowered between the first and second working positions of the main body 110 along its longitudinal direction. Therefore, the cleaning equipment can change the positions of the gantry frame 200 and the main unit 300 according to the external environment, thereby achieving cleaning in both open and closed environments. The open environment refers to the floor of the living room and bedroom, and the closed environment refers to areas such as under sofas and under tables.

[0090] Further, please refer to Figure 7 As shown, the first working positions are located near the far end of the fuselage body 110; please refer to... Figure 8 As shown, the second working position is located near the proximal end of the fuselage body 110. Of course, a third working position, a fourth working position, etc., can also be provided between the first and second working positions; the number of these working positions can be determined according to actual usage. In this embodiment, only the first and second working positions are provided on the fuselage body 110.

[0091] In this embodiment, the main body 110 has an outlet as described above at the first and second working positions corresponding to the overhead crane 200. Please refer to [link / reference]. Figures 10 to 12 As shown, the two outlets are defined as the first outlet 111 and the second outlet 112, respectively, wherein the first working position corresponds to the first outlet 111 and the second working position corresponds to the second outlet 112.

[0092] Furthermore, the first outlet 111 is located near the far end of the main body 110, and the second outlet 112 is located near the near end of the main body 110. That is, the first outlet 111 is located at a lower position, and the second outlet 112 is located at a higher position, situated above the first outlet 111. When cleaning an open environment, the gantry 200 is held in the first working position; when cleaning a non-open environment, the gantry 200 is held in the second working position. In this position, the floor brush unit 120 can easily enter the non-open environment for cleaning operations.

[0093] Preferably, the first outlet 111 and the second outlet 112 are located on the extension of the same straight line. For example, when the outer wall of the fuselage body 110 is cylindrical, the first outlet 111 and the second outlet 112 are located on the same generatrix.

[0094] In this embodiment, please continue to refer to Figures 10 to 12 As shown, a first valve 1111 is slidably disposed at the first outlet 111, and a second valve 1121 is slidably disposed at the second outlet 112. Both the first valve 1111 and the second valve 1121 are disposed on the outer wall of the main body 110. The outer wall of the main body 110 also provides a first valve adjusting mechanism 113 acting on the first valve 1111 and a second valve adjusting mechanism 114 acting on the second valve 1121.

[0095] Please see Figure 13 As shown, the first valve regulating mechanism 113 includes a first housing 1131 and a first valve compression spring 1132 housed within the first housing 1131. The first valve 1111 tends to remain closed at the first outlet 111 due to the biasing force of the first valve compression spring 1132.

[0096] Specifically, the first outer shell 1131 is internally hollow, and its shell has a first through-hole (not shown in the figure) for the first valve 1111 to pass through. The first through-hole is located near the first outlet 111. The two ends of the first valve spring 1132 abut against the first outer shell 1131 and the first valve 1111, respectively, with the first valve spring 1132 located closer to the far end of the fuselage body 110 than the first valve 1111. When the first outlet 111 is closed, the first valve 1111 extends out of the first outer shell 1131. The first valve 1111 has a limiting flange 1112 for limiting its extension. When the first outlet 111 is open, the first valve 1111 retracts into the first outer shell 1131.

[0097] In this embodiment, please refer to Figure 14As shown, the second valve adjusting mechanism 114 includes a second housing 1141 and a second valve spring 1142 housed within the second housing 1141. The second valve spring 1142 is located closer to the proximal end of the fuselage body 110 than the second valve 1121. The second valve 1121 is tended to remain closed by the biasing force of the second valve spring 1142. The second valve adjusting mechanism 114 has the same structure as the first valve adjusting mechanism 113, and will not be described in detail here.

[0098] The structure of the first valve regulating mechanism 113 and the second valve regulating mechanism 114 has been fully described above. Those skilled in the art will understand the following movement process:

[0099] When the main unit 300 moves to the first working position along with the gantry 200, the distal end of the gantry 200 abuts against the first valve 1111 and applies a pulling force toward the distal end of the main body 110, forcing the first valve 1111 to retract into the first housing 1131, thereby switching the first valve 1111 from a closed state to an open state. That is, in the first working position, the first valve 1111 opens the first outlet 111, and the second valve 1121 closes the second outlet 112. By setting the first outlet 111 and the second outlet 112, the gas path for dust can be switched, which has the advantage of ease of use.

[0100] When the main unit 300 moves from the first working position to the second working position along with the traveling frame 200, the traveling frame 200 and the first valve 1111 no longer abut against each other. At this time, the first valve 1111 slides upward under the biasing force of the first valve spring 1132, thus closing the first outlet 111. When the traveling frame 200 carrying the main unit 300 moves to the second working position, the proximal end of the traveling frame 200 abuts against the second valve 1121 and applies a pulling force towards the proximal end of the main body 110 to the second valve 1121, so that the second valve 1121 switches from the closed state to the open state. That is, in the second working position, the first valve 1111 closes the first outlet 111, and the second valve 1121 opens the second outlet 112.

[0101] In summary, when the crane frame 200 and the main unit 300 move to the first working position, the first outlet 111 is open and connected to the dust and air inlet 230, while the second outlet 112 is closed. When the crane frame 200 and the main unit 300 move to the second working position, the second outlet 112 is open and connected to the dust and air inlet 230, while the first outlet 111 is closed.

[0102] In other words, when the crane frame 200 moves to the first working position, the dust gas sucked in through the main body 110 enters the main unit 300 through the first outlet 111, and when the crane frame 200 moves to the second working position, the dust gas sucked in through the main body 100 enters the main unit 300 through the second outlet 112.

[0103] In this embodiment, please refer to Figure 9 As shown, a brake structure 410 is provided at the end of the lifting path of the traveling frame 200, and the brake structure 410 is located on the outer wall of the main body 110. The brake structure 410 is used to limit the stopping of the traveling frame 200, so that the traveling frame 200 stops at the first working position or the second working position. The brake structure 410 is provided in a one-to-one correspondence with the outlets on the main body 110. In this embodiment, the main body 110 has a first outlet 111 and a second outlet 112, and the number of brake structures 410 is also two. When the traveling frame 200 runs to the first outlet 111 and the second outlet 112, the brake structure 410 performs braking and limiting.

[0104] The aforementioned brake structure 410 includes a brake elastic element, and braking is achieved by compressing the brake elastic element at the end of the chassis 200. The aforementioned brake elastic element can be a rubber limiting block, a hydraulic damper, or other elastic elements with a buffering function.

[0105] In this embodiment, please refer to Figure 1 As shown, the main body 110 has a control switch 131 on the handle 130, and the main unit 300 has a main switch 330. The main unit 300 also has a main control board (not shown in the figure), and the main switch 330 and the main motor are electrically connected to the main control board.

[0106] Specifically, the main control board controls the main motor to turn on or off. When the main motor is on, a negative pressure is generated in the dust-air separation channel; when the main motor is off, the negative pressure in the dust-air separation channel disappears. The main control board controls the rotation direction of the drive motor 420, thereby realizing the upward or downward movement of the traveling frame 200. The floor brush unit 120 has a built-in floor brush motor (not shown in the figure), and the main control board controls the floor brush motor to turn on or off.

[0107] When the main unit 300 is installed on the gantry frame 200, the control switch 131 and the main unit switch 330 are electrically connected to the main control board. After the user triggers the control switch 131 or the main unit switch 330, the main control board can control the working status of the main motor, the drive motor 420 and the floor brush unit 120.

[0108] When the main unit 300 is separated from the gantry 200, the control switch 131 is no longer electrically connected to the main control board. The user can control the working status of the main motor by triggering the control switch 131. At this time, the main unit 300 can be used as a handheld vacuum cleaner.

[0109] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. Based on the embodiments of the present invention, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the scope of protection of the present invention.

Claims

1. A cleaning device, characterized in that, include: The main body (110) has a suction port and at least one outlet connected to the suction port; The host component (300) has a first state mounted on the main body (110) and a second state separated from the main body (110); The main unit (300) includes at least a dust-gas separation unit (320), a dust inlet structure for dust-gas to flow into the dust-gas separation unit, and a main motor for generating negative pressure so that dust-gas can flow into the dust-gas separation unit through the dust inlet structure; the dust inlet structure includes a first dust inlet (311) and a second dust inlet (312). In the first state, one of the first dust inlet (311) and the second dust inlet (312) is open to communicate with the outlet, and the other dust inlet is closed; in the second state, at least one of the first dust inlet (311) and the second dust inlet (312) is open to allow dust to enter the dust separation unit; the air path can be switched according to whether the main unit (300) is installed on the main body (110) or separated from the main body (110) through the first dust inlet (311) and the second dust inlet (312).

2. The cleaning equipment according to claim 1, characterized in that, The main body (110) also includes a dust suction channel, which is connected to the dust suction port and the outlet; The main unit (300) also includes a dust-gas separation channel connected to the dust-gas separation unit (320), and the main motor is used to generate negative pressure in the dust-gas separation channel; the first dust-gas inlet (311) and the second dust-gas inlet (312) are provided on the dust-gas separation channel.

3. The cleaning equipment as described in claim 2, characterized in that, In the first state, the dust-gas separation channel and the dust suction channel are arranged side by side; The outlet is located on the side wall of the dust extraction channel; the first dust inlet (311) is located at the far end of the dust separation channel; the second dust inlet (312) is located on the side wall of the dust separation channel. In the first state, the second dust gas inlet is sealed and connected to the outlet, and the first dust gas inlet is in the closed state.

4. The cleaning equipment according to claim 3, characterized in that, The fuselage body (110) is provided with a first sealing member (212) extending toward its proximal end. In the first state, the first sealing element (212) is sealed and inserted into the first dust inlet (311); in the second state, the first sealing element (212) is removed from the first dust inlet (311).

5. The cleaning equipment according to any one of claims 2-4, characterized in that, The main unit (300) also includes an air inlet pipe (310) for conveying dust gas, and the dust gas separation channel is formed on the air inlet pipe (310); The first dust inlet (311) and the second dust inlet (312) are located on the air inlet pipe (310); In the first state, the air intake pipe (310) is mounted on the outer wall of the fuselage body (110), and the main unit assembly (300) is mounted on the fuselage body (110).

6. The cleaning equipment according to any one of claims 2-4, characterized in that, A second sealing element (313) is provided at the second dust inlet (312). The second sealing element (313) is slidably provided on the outer wall of the main unit (300) where the second dust inlet (312) is located along the length direction of the main body (110). The host component (300) is also provided with a first switching mechanism (316), the first switching mechanism (316) includes a first elastic element (3161) provided on the host component (300), and the second sealing element (313) tends to keep the second dust gas inlet (312) closed by the bias pressure of the first elastic element (3161). The outer wall of the fuselage body (110) is provided with a first actuating element (213); In the first state, the first actuating member (213) and the first elastic member (3161) are distributed on both sides of the second sealing member (313), and the first actuating member (213) applies a actuating force to the second sealing member (313) in the opposite direction to the bias pressure, forcing the second sealing member (313) to slide to open the second dust gas inlet (312).

7. The cleaning equipment according to claim 6, characterized in that, The first switching mechanism (316) also includes a valve housing (3162) disposed on the outer wall of the host assembly (300). The valve housing (3162) has a mounting cavity extending along the sliding direction of the second sealing member (313). The valve housing (3162) is provided with an opening for the second sealing member (313) to pass through. The opening of the valve housing (3162) is located near the second dust inlet (312). The first elastic member (3161) is located in the mounting cavity, and its two ends are respectively located in the mounting cavity and on the second sealing member (313). In the first state, the second sealing member (313) retracts into the mounting cavity; in the second state, the second sealing member (313) extends out of the mounting cavity to close the second dust inlet (312).

8. The cleaning equipment according to claim 6, characterized in that, The main body (110) is provided with a traveling frame (200); the main unit (300) is provided on the main body (110) via the traveling frame (200); the traveling frame (200) is provided with a dust inlet (230); the first actuating member (213) is provided on the traveling frame (200); in the first state, the outlet is sealed and connected to the second dust inlet (312) via the dust inlet (230).

9. The cleaning equipment according to claim 2, characterized in that, It also includes a traveling frame (200) mounted on the fuselage body (110). The main unit (300) is mounted on the main body (110) via the gantry frame (200); the gantry frame (200) is provided with a dust and air vent (230). In the first state, the outlet is sealed and connected to the second dust inlet (312) through the dust port (230).

10. The cleaning equipment according to claim 9, characterized in that, A bottom end plate (211) is formed on the overhead frame (200), and the bottom end plate (211) is used to limit the upper position of the fuselage body (110) in the longitudinal direction; When the main unit (300) is held on the overhead frame (200), the bottom plate (211) closes the first dust inlet (311) so that the first dust inlet (311) is in a closed state.

11. The cleaning equipment as described in claim 9, characterized in that, The main unit (300) is also provided with an air intake pipe (310), which cooperates with the overhead frame (200) so that the main unit (300) is held on the overhead frame (200) in the first state; The first dust inlet (311) is located at the free end of the air inlet pipe (310), and the second dust inlet (312) is located on the side wall of the air inlet pipe (310).

12. The cleaning equipment according to claim 1, characterized in that, It also includes a crane frame (200), which can be lifted and lowered on the main body (100). The crane frame (200) is provided with a dust and air inlet structure that communicates with the dust suction port. The dust and air inlet structure includes at least a dust and air inlet (230). The main unit (300) is detachably connected to the main body (110) by being detachably mounted on the overhead frame (200); The main unit (300) also includes a second sealing element (313) slidably disposed on the dust inlet. In the first state, the second sealing member (313) is pushed open by the gantry frame (200) so that the dust flow passes through the dust suction port, dust gas inlet structure and dust inlet structure and enters the dust gas separation unit (320). In the second state, when the main unit (300) is separated from the overhead crane (200), the dust and gas flow directly into the dust and gas separation unit (320) through the dust inlet structure.

13. The cleaning equipment according to claim 9 or 12, characterized in that, The overhead crane (200) includes a loading section (210) for cooperating with the main unit (300) to hold the main unit (300) on the overhead crane (200), and a connecting section (220) provided on the loading section (210) for connecting with the fuselage body (110). The dust outlet (230) is located on the loading part (210).

14. The cleaning equipment as described in claim 13, characterized in that, The sidewall of the main unit (300) is slidably disposed on the loading part (210) along the longitudinal direction of the fuselage body (110).

15. The cleaning equipment according to claim 13, characterized in that, The loading part (210) is provided with a bottom plate (211) perpendicular to its extension direction. In the first state, the distal end of the host assembly (300) abuts against the bottom plate (211), which at least partially bears the weight of the host assembly (300).

16. The cleaning equipment according to claim 15, characterized in that, The main body (110) is provided with a first sealing member (212) extending toward its proximal end, and the first sealing member (212) is provided on the bottom end plate (211); one of the dust gas inlets is distributed at the far end of the dust gas separation channel; In the first state, the first sealing member (212) is sealed into the first dust inlet (311) at the distal end, so that the distal end of the main unit (300) abuts against the bottom plate (211).

17. The cleaning equipment according to claim 9 or 12, characterized in that, The overhead crane (200) has at least a first working position and a second working position in the longitudinal direction of the fuselage body (100). The fuselage body (110) is provided with an outlet corresponding to the first working position and the second working position of the overhead crane (200). The two outlets are a first outlet (111) and a second outlet (112), which are respectively close to the far end and the near end of the fuselage body (110). The overhead crane (200) is vertically and flexibly positioned between the first working position and the second working position of the main body (110) along the longitudinal direction of the main body (110); In the first working position of the first state, the first outlet (111) is open and connected to the dust port (230), and the second outlet is closed; In the second working position of the first state, the second outlet is open and connected to the dust port (230), while the first outlet is closed.

18. The cleaning equipment according to claim 17, characterized in that, It also includes a first valve (1111) and a second valve, which are slidably disposed on the first outlet (111) and the second outlet (112), respectively; In the first working position, the first valve (1111) opens the first outlet (111), and the second valve closes the second outlet (112); in the second working position, the first valve (1111) closes the first outlet (111), and the second valve opens the second outlet (112).

19. The cleaning equipment according to claim 18, characterized in that, When the main unit (300) is in the first state and the main unit (300) is running to the first working position, the gantry frame (200) abuts against the first valve (1111) and applies a turning force to the first valve (1111) in the direction of the far end of the main body (110) so that the first valve (1111) switches from the closed state to the open state; When the main unit (300) is in the first state and the main unit (300) is running to the second working position, the gantry frame (200) abuts against the second valve (1121) and applies a turning force to the second valve (1121) in the direction of the proximal end of the main body (110) so that the second valve (1121) switches from the closed state to the open state.

20. The cleaning equipment according to any one of claims 1-4, characterized in that, The main unit (300) also includes a battery pack for supplying electrical power to the main motor; In the first state, the main unit (300) has the battery pack, the main motor, and the dust-gas separation unit (320) sequentially distributed along the proximal to distal end of the main body (110); or, The main unit (300) has the dust-gas separation unit (320), the main motor and the battery pack arranged sequentially along the direction from the proximal end to the distal end of the main body (110).

21. The cleaning equipment according to claim 9 or 12, characterized in that, The cleaning equipment also includes a drive unit (400) for driving the trolley frame (200) to move up and down on the main body (110); the drive unit is powered by the battery pack of the main unit (300); and / or A brake structure (410) is provided at the end of the lifting path of the overhead crane (200). The brake structure (410) includes a brake elastic element. The end of the overhead crane (200) achieves braking by squeezing the brake elastic element.

22. The cleaning equipment according to any one of claims 2-4, characterized in that, The main motor and the dust-gas separation unit (320) are coaxial devices, with the first dust-gas inlet (311) opening in a direction parallel to the axis and the second dust-gas inlet (312) opening in a direction perpendicular to the axis.

23. The cleaning equipment according to any one of claims 1-4, characterized in that, It also includes a floor brush unit (120) located at the far end of the main body (110) and a handle (130) located at the near end of the main body (110); the suction port is located on the floor brush unit (120).

24. A cleaning device, characterized in that, include: Main fuselage (110); The gantry frame (200) is vertically mounted on the main body (110). The gantry frame (200) has a first working position and a second working position on the main body (110). The main body (110) has a first outlet (111) and a second outlet (112) respectively corresponding to the first working position and the second working position of the gantry frame (200). The main unit (300) is detachably connected to the overhead crane (200). The main unit (300) includes at least a dust-gas separation unit (320), a dust inlet structure for dust-gas to flow into the dust-gas separation unit, and a main motor for generating negative pressure to allow dust-gas to flow into the dust-gas separation unit through the dust inlet structure. The dust inlet structure includes a first dust inlet (311) and a second dust inlet (312). When the gantry (200) is in the first working position, one of the first dust inlet (311) and the second dust inlet (312) is open to communicate with the first outlet (111), and the other dust inlet is closed. The dust gas drawn in through the main body (110) enters the main unit (300) through the first outlet (111). When the gantry (200) is in the second working position, at least one of the first dust inlet (311) and the second dust inlet (312) is open. The dust gas drawn in through the main body (110) enters the main unit (300) through the second outlet (112). The air path can be switched according to whether the main unit (300) is installed on the main body (110) or separated from the main body (110) through the first dust inlet (311) and the second dust inlet (312).

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