Surface cleaning device

Abstract

The present application discloses a surface cleaning device, comprising a base; an upright body, the lower part of which is rotatably connected to the base assembly; a supply box; a dirty liquid recovery box, which is detachably arranged on the upright body and has a liquid inlet and an air outlet connected to the fluid of the suction channel; a portable cleaning host; and an actuating component; the portable cleaning host is detachably arranged on the upright body and includes a vacuum motor, a dust cup with a dust collecting chamber therein, and a door mechanism, the door mechanism having a first door and a second door forming a linkage relationship; the actuating component is located on the upright body and is configured to cause the first door to open a docking port that connects the dirty liquid recovery box and the vacuum motor fluid and close the exhaust port between the dust collecting chamber and the suction motor when the portable cleaning host is installed on the upright body.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, in particular to a surface cleaning device. Background Art

[0002] Wet cleaning devices are widely used in household cleaning because they can perform vacuuming, wet wiping, and liquid recovery in one process. A common type of wet cleaning device is a floor scrubber equipped with a roller brush. These devices typically supply cleaning liquid to the surface being cleaned and to one of the roller brushes. The roller brush removes dirt from the surface through friction, and then negative pressure collects the liquid, mixed with dust and debris, into a liquid recovery tank.

[0003] However, since wet cleaning devices are usually large machines, they can easily perform cleaning operations on wide surfaces; but for narrow places such as corners, their cleaning ability is insufficient; for this reason, combined wet and dry cleaning devices have been proposed in the prior art, such as publication number CN209220118 U, which discloses a wet and dry vacuum cleaner carrying a portable cleaning device that can be detached from the machine. In wet cleaning mode, air flows from the suction port through the dust suction chamber, the sewage tank and the dust cup assembly in sequence; in dry cleaning mode, the portable cleaning device can be taken out from the main unit to perform the function of a dry vacuum cleaner alone.

[0004] In this machine, since the air escaping from the sewage recovery tank often contains a lot of moisture, this moisture-laden air will wet the inner wall of the dust cup when passing through the dust cup of the portable cleaning device. When the portable cleaning device performs the function of a dry vacuum cleaner alone, the inhaled dry garbage, especially debris, will stick to the inner wall of the dust cup. This will make it impossible for users to remove the solid garbage in the dust cup by simply dumping the dust cup. Consumers are often required to manually clean up these solid garbage, affecting the consumer experience. Summary of the Invention

[0005] The present invention solves at least one of the technical problems in the prior art. To this end, one object of the present invention is to provide a surface cleaning device that is flexible and convenient to use and has a dust cup that can be easily cleaned after use.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a surface cleaning device, comprising: a base, comprising at least one roller brush and a suction channel that are in frictional contact with the surface to be cleaned; an upright body, the lower part of which is rotatably connected to the base assembly; a supply box, which is arranged on the upright body and is configured to supply cleaning liquid to the at least one roller brush and / or the surface to be cleaned; a dirty liquid recovery box, which is detachably arranged on the upright body and has a liquid inlet and an air outlet that are fluidically connected to the suction channel; a portable cleaning host, which is detachably arranged on the upright body and comprises a vacuum motor, a dust cup with a dust collection chamber therein, and a door mechanism, the portable cleaning host having an exhaust port and a docking port that are fluidically connected to the dust collection chamber, and the docking port is configured to be installed on the portable cleaning host when the portable cleaning host is installed on the upright body. When the portable cleaning host is mounted on the upright body, it is fluidly connected to the air outlet, and the door mechanism includes a first door capable of opening and closing the docking port and a second door capable of opening and closing the exhaust port, and the first door and the second door are transmission-arranged; the door mechanism has a first working state and a second working state; in the first working state, the first door opens the docking port and the second door closes the exhaust port; in the second working state, the first door closes the docking port and the second door opens the exhaust port; and an actuating component, which is arranged on the upright body; the actuating component is configured to contact the door mechanism when the portable cleaning host is mounted on the upright body, so as to actuate the door mechanism to switch from the second working state to the first working state.

[0007] The surface cleaning device of the above scheme can select either the dust cup or the dirty liquid recovery box of the portable cleaning device to work by arranging a door mechanism on the portable cleaning host and an actuating component on the upright body; when used in combination, the humid air escaping from the dirty liquid recovery box will not pass through the dust cup, but directly enter the vacuum motor, which can effectively prevent the humid air surface from wetting the inner wall of the dust cup; and when the portable cleaning host is used separately, the user can choose to inhale dry garbage only from the dust inlet, thereby avoiding the inner wall of the dust cup from being wetted or contaminated; this scheme can make it more convenient for users to clean the garbage in the dust cup.

[0008] Preferably, the actuating component includes a top block, and the top block abuts against the first door when the portable cleaning host is installed on the upright body.

[0009] IFurther preferably, an output interface is provided at the upright body, the output interface is fluidly connected to the air outlet, the top block is located at the output interface, and the output interface is fluidly connected to the docking interface when the portable cleaning host is installed on the upright body.

[0010] Further preferably, the upright body includes a casing having a rear portion facing the user and a front portion away from the rear portion, the top block and the output interface are arranged at the front portion, and the portable cleaning host is detachably connected to the front portion.

[0011] Further preferably, the waste liquid recovery tank is detachably mounted at the rear portion.

[0012] Further preferably, the supply tank is detachably mounted on the rear portion and is located on the upper side of the waste liquid recovery tank.

[0013] More preferably, the top block extends along the front-to-back direction.

[0014] Preferably, the door mechanism includes at least one return spring, and the at least one return spring is configured to provide a return force for the door mechanism to switch toward the second working state when the portable cleaning host is separated from the upright body.

[0015] Further preferably, the door mechanism includes a shell, the air outlet and the docking port are both arranged on the shell, and the first door and the second door are both rotatably connected to the shell.

[0016] Further preferably, the door mechanism further includes a push rod member arranged between the first door and the second door; the push rod member has a first end and a second end opposite to each other, the first end is connected to the first door, and the second end is in contact with the second door.

[0017] Further preferably, the at least one return spring comprises a first return spring arranged between the first end portion and the second door.

[0018] Further preferably, the first end is provided with a groove, the second door is provided with a stopper on a side wall facing the push rod member, and the first return spring is confined between the groove and the stopper.

[0019] Further preferably, the at least one return spring includes a second return spring arranged between the second door and the housing.

[0020] Further preferably, the shell includes an outer peripheral wall and an inner partition located inside the outer peripheral wall, the air outlet is located on the inner partition, and the docking port is located on the outer peripheral wall.

[0021] Further preferably, the inner partition includes a slope wall that forms an angle greater than 0° and less than 90° with the vertical plane.

[0022] Further preferably, the first door is rotatably connected to the shell around a first axis, and the second door is rotatably connected to the shell around a second axis, and the first axis and the second axis are perpendicular to each other.

[0023] Further preferably, the vacuum motor is located on the upper side of the dust cup, and the door mechanism is located between the vacuum motor and the dust cup.

[0024] Preferably, the portable cleaning host further comprises a battery pack, and the battery pack is configured to power energy-consuming components on the surface cleaning device.

[0025] Preferably, the portable cleaning host also includes a dust inlet pipe, at least part of which protrudes downward from the bottom of the dust cup, and the dust inlet port is defined by the dust inlet pipe. A receiving portion is provided on the upright body, and the receiving portion receives and holds the dust inlet pipe when the portable cleaning host is installed on the upright body.

[0026] Preferably, the surface cleaning device further comprises a locking mechanism for locking the portable cleaning host to the upright body, and the locking mechanism comprises an unlocking operating member provided on the portable cleaning host or the upright body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a perspective view of a surface cleaning device according to one embodiment of the present invention;

[0028] Figure 2 for Figure 1 A disassembled diagram of the surface cleaning device in FIG. 1 ; wherein the portable cleaning main unit is separated from the upright body;

[0029] Figure 3 A side view of the surface cleaning device, wherein the base, the dirty liquid recovery tank, the portable cleaning main unit, and a portion of the upright body are partially cut away to reveal their internal details;

[0030] Figure 4 yes Figure 3 The enlarged view of the boxed part in the middle mainly shows the details of the dirty liquid recovery tank, door mechanism and vacuum motor; Figure 5 yes Figure 3 A magnified view of the base section in the figure shows the details inside the base;

[0031] Figure 6 for Figure 2 A partial cross-sectional view of the portable cleaning host shown;

[0032] Figure 7 yes Figure 6 Enlarged view of the boxed portion in the middle;

[0033] Figure 8 is a perspective view of a door mechanism according to one embodiment of the present invention;

[0034] Figure 9 for Figure 8 Disassembly diagram of the door mechanism;

[0035] Figure 10 for Figure 8 A schematic cross-sectional view of a door mechanism; wherein the door mechanism is in a second working state;

[0036] Figure 11 2 is a schematic top cross-sectional view of the door mechanism; wherein the door mechanism is in the process of switching from the second working state to the first working state;

[0037] Figure 12 : is a side cross-sectional schematic diagram of the door mechanism; wherein the door mechanism is in the process of switching from the second working state to the first working state;

[0038] Figure 13 Schematic side cross-sectional view of the door mechanism; wherein the door mechanism is in a first working state;

[0039] Figure 14 is another side cross-sectional schematic diagram of the door mechanism; wherein the door mechanism is in the first working state;

[0040] Figure 15 A schematic side cross-sectional view of the door mechanism; wherein the door mechanism is in a second working state; showing details of the first door closing the docking port and the second door opening the exhaust port;

[0041] Figure 16 This is another side sectional schematic diagram of the door mechanism; wherein, the door mechanism is in the second working state. Implementation Method

[0042] In order to explain in detail the technical content, structural features, achieved purposes and effects of the invention, the technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0043] In the following description, for purposes of explanation, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, the various exemplary embodiments may also be implemented without these specific details or with one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shapes, configurations, and features of an exemplary embodiment may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0044] For the purpose of description in relation to the accompanying drawings, the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "inner," "outer," and their derivatives are used in a defined positional relationship relative to the direction in which a user standing on the ground pushes the surface cleaning device 100 (i.e., a pushing direction from back to front). As used herein, the term "rear" refers to a position behind at least one other component, but does not necessarily mean behind all other components. However, it should be understood that the present invention may assume various alternative orientations unless an opposite orientation is explicitly indicated.

[0045] Reference below Figures 1-16 The technical solution of the surface cleaning device 100 provided by an embodiment of the present invention is described.

[0046] like Figure 1-Figure 3 As shown, the present invention provides a surface cleaning device 100 comprising a base 1, an upright body 2, a liquid supply assembly, a liquid recovery assembly, and a portable cleaning unit 3. This device 100 can meet both wet cleaning and dry vacuuming requirements. The base 1 guides the device 100 on the surface to be cleaned for wet cleaning. When the portable cleaning unit 3 is detached from the upright body 2, it can be attached directly or by attaching a suction tube assembly to achieve dry vacuuming.

[0047] Reference Figure 5The front portion of the base 1 defines a brush chamber 11, and the brush chamber 11 has a lower opening 111 located at the bottom facing the surface to be cleaned. Dirt and debris on the surface to be cleaned (such as the ground) can be fed into the brush chamber 11 through the lower opening 111. A roller brush 12 is installed inside the brush chamber 11, and the lower portion of the roller brush 12 extends from the lower opening 111 to make frictional contact with the surface to be cleaned. The roller brush 12 is transmission-connected to a driving component (not shown in the figure). Driven by the driving component, the roller brush 12 can rotate around its own axis to rub the surface to be cleaned. Typically, the outer peripheral surface of the roller brush 12 is covered with fiber fluff that can be soaked in liquid. In other embodiments, a double roller brush structure can also be arranged in the brush chamber; a pair of brush chambers can also be provided on the base, with a roller brush arranged in each brush roller. The base 1 also has a suction channel 13 within it, which is in fluid communication with the brush chamber 11. Dirt and debris introduced into the brush chamber 11 are transferred to the liquid recovery tank of the liquid recovery assembly via the suction channel 13. The lower portion of the upright body 2 is rotatably connected to the base 1 at the lower portion of the upright body 2, allowing an operator to control the rotation and movement of the base 1 via the upright body 2.

[0048] See also Figure 1-3 The liquid supply assembly includes a supply box 4 and a fluid distributor 41 (see Figure 5 ), the supply box 4 is detachably mounted on the upright body 2 and is connected to the fluid distributor 41. The supply box 4 is used to store cleaning liquid. The liquid in the supply box 4 can be controllably transferred to the fluid distributor 41 by means of a pump (not shown) and other components. The fluid distributor 41 in this example is located inside the base 1 and is suitable for distributing cleaning liquid to the roller brush 12 to wet the roller brush 12. In other embodiments, the fluid distributor can also be configured to directly supply cleaning liquid to the surface to be cleaned. The cleaning liquid can be clean water or an aqueous solution containing a disinfectant or the like; its temperature can be room temperature water or heated hot water.

[0049] like Figure 3-4As shown, the dirty liquid recovery assembly includes a dirty liquid recovery tank 5 in fluid communication with the suction channel 13. The dirty liquid recovery tank 5 is removably mounted on the upright housing 21 and is used to recover dirty liquid and debris. A fluid distributor 41 supplies cleaning liquid to the roller brush 12. This liquid is absorbed by the roller brush 12 and used to wipe the surface to be cleaned, forming dirty liquid. The dirty liquid, along with air and debris, is drawn into the brush chamber 11 and then fed through the suction channel 13 into the dirty liquid recovery tank 5. The dirty liquid and debris are recovered within the dirty liquid recovery tank 5, while the air eventually escapes. The dirty liquid recovery tank 5 includes a housing 51 with a recovery chamber 50 within it, a lid assembly 52 covering the top of the housing 51, a liquid inlet 53 at the bottom of the housing 51 and connected to the recovery chamber 50, and an air outlet 54 on the lid assembly 52. ​​The lid assembly 52 is also provided with a filter 55. The air outlet 54 is typically downstream of or defined by the filter 55.

[0050] See also Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 The portable cleaning host 3 is detachably arranged on the upright body 2. The portable cleaning host 3 includes a vacuum motor 31, a dust cup 32 with a dust collecting chamber 30 inside, a dust inlet pipe 33 protruding downward from the bottom of the dust cup 32, an air-solid separator 34 located inside the dust cup 32, a door mechanism 36 and a battery pack 37. The dust inlet pipe 33 defines a dust inlet 331 connected to the interior of the dust cup 32. The air-solid separator 34 is used to separate solid waste from the dust-laden air flow; after separation, the solid waste will be stored in the dust cup 32, and the air will escape to the outside. The vacuum motor 31 provides power for the fluid flow. The battery pack 37 is configured to power various energy-consuming components including the vacuum motor 31. In this embodiment, the vacuum motor 31 is located on the upper side of the dust cup 32, and the door mechanism 36 is located between the vacuum motor 31 and the dust cup 32. A male power connection terminal 38 is further provided on the outer wall of the portable cleaning host 3 , and the male power connection terminal 38 is electrically connected to the battery pack 37 so as to supply the power of the battery pack 37 to other components.

[0051] like Figure 4-10As shown, the door mechanism 36 includes a shell 360, a first door 361, a second door 362 and a push rod member 363. The shell 360 includes an outer peripheral wall 3601 and an inner partition 3602. The upper part of the outer peripheral wall 3601 has an upper opening 3603, and the lower part has a lower opening 3604. The shell 360 can be a component integral with the shell at the vacuum motor 31, or a separate component. The upper opening 3603 is fluidically connected to the air inlet of the vacuum motor 31, and the lower opening 3604 is fluidically connected to the dust cup 32. The inner partition 3602 is located inside the outer peripheral wall 3601 and separates the upper and lower spaces inside the outer peripheral wall 3601. The inner partition 3602 is preferably a sloped wall, and the plane where the inner partition 3602 is located forms an angle greater than 0° and less than 90° with the vertical plane; the inner partition 3602 can be a component integral with the outer peripheral wall, or a separate component. The inner partition 3602 is provided with an exhaust port 367, which is in fluid communication with the internal dust collection chamber 30 of the dust cup 32. The outer peripheral wall 3601 is provided with a docking port 368. A first air passage 369 is formed between the docking port 368 and the upper opening 3603, and a second air passage 3610 is formed between the exhaust port 367 and the upper opening 3603.

[0052] like Figure 8 As shown, the first door 361 is rotatably connected to the outer wall 3601 about a first axis X, and the second door 362 is rotatably connected to the outer wall 3601 about a second axis Y. In this embodiment, the first axis X is a vertical axis, and the second axis Y is a horizontal axis, and the two axes are perpendicular to each other. When the first door 361 is rotatable about the first axis X, the docking port 368 can be switched between open and closed; when the second door 362 is rotatable about the second axis Y, the exhaust port 367 can be switched between open and closed.

[0053] like Figure 8 、 9 As shown, push rod member 363 is located between first door 361 and second door 362, forming a linkage relationship between first door 361 and second door 362 through push rod member 363. Push rod member 363 has a first end 3631 and a second end 3632 that oppose each other. First end 3631 abuts the inner wall surface of first door 361, while second end 3632 abuts the inner wall surface of second door 361. When first door 361 is driven to rotate inward, first end 3631 is pushed inward, causing second end 3632 to push second door 362 to rotate.

[0054] The door mechanism 36 also includes a compression spring 364 and a torsion spring 365. The compression spring 364 is disposed between the first end 3631 of the push rod member 363 and the second door 362, while the torsion spring 365 is disposed between the second door 362 and the outer peripheral wall 3601. After the force applied to the first door 361 disappears, the compression spring 364 and torsion spring 365 can force the second door 362 and the first door 361 to return to their original positions.

[0055] In order to better install the compression spring 364 , the first end 3631 is provided with a groove 3633 , and the second door 362 is provided with a stopper 366 on a side wall facing the push rod member 363 , and the compression spring 364 is confined between the groove 3633 and the stopper 366 .

[0056] The door mechanism 36 has a first working state and a second working state; in the first working state, the first door 361 opens the docking port 368, the second door 362 closes the exhaust port 367, and the compression spring 364 and the torsion spring 365 are both in a deformed state; in the second working state, the first door 361 closes the docking port 368, the second door 362 opens the exhaust port 367, and the compression spring 364 and the torsion spring 365 are both in a free state.

[0057] like Figure 1-3 As shown, the upright body 2 includes a housing 22, and a handle bar assembly 21 is installed on the top of the housing 22. When using the surface cleaning device 100, the operator can hold the handle 211 on the handle bar assembly 21 and manipulate the operation buttons 212 on the handle bar assembly 21. The housing 22 has a rear portion 221 facing the user and a front portion 222 facing away from the rear portion 221. An output interface 223 is provided at the front portion 222, and the output interface 223 is fluidically connected to the air outlet 54 on the box cover assembly 52. ​​The front portion 222 is also provided with a top block 224 at the output interface 223, and the top block 224 extends in the front-to-back direction. The front portion 222 is also provided with a female electrical connection terminal 225 above the output interface 223. The front portion 222 is also provided with a receiving portion 226 below the output interface 223. The portable cleaning host 3 is detachably arranged at the front portion 222 ; the dirty liquid recovery tank 4 and the supply tank 3 are both arranged at the rear portion 221 , and the dirty liquid recovery tank 4 is located below the supply tank 3 .

[0058] Furthermore, a locking mechanism 6 is provided between the portable cleaning host 3 and the upright body 2, capable of locking the portable cleaning host 3 to the upright body 2. In this example, the locking mechanism 6 comprises a locking slot 61 provided on the portable cleaning host 3, an unlocking operating member 62 that interacts with the locking hook 61, and a locking block 63 provided on the upright body 2. When the locking slot 61 and the locking block 63 are interlocked, the portable cleaning host 3 and the upright body 2 are locked together. The user can operate the unlocking operating member 62 to drive the locking slot 61 and the locking block 63 apart, thereby detaching the portable cleaning host 3 from the upright body 2.

[0059] like Figure 3-4 As shown, when the portable cleaning host 3 is installed at the front 222, the dust inlet pipe 33 is located in the receiving portion 226, the top block 224 abuts the first door 361 and drives the first door 361 to open the docking port 368, the first door 361 drives the push rod member 363 to push the second door 362 to close the exhaust port 367, and the door mechanism 36 enters the first working state; the female electrical connection terminal 225 is electrically connected to the male electrical connection terminal 38; thus, the lower opening 111, the suction channel 13, the dirty liquid recovery tank 5, the air outlet 54, the first air channel 369 and the vacuum motor 31 are connected in sequence, and the fluid connection between the dust cup 32 and the second air channel 3610 is cut off.

[0060] like Figure 6-7 As shown, when the portable cleaning host 3 is detached from the front 222, under the reset action of the compression spring 364 and the torsion spring 365, the first door 361 moves to close the docking port 368 and drives the second door 362 to move to open the exhaust port 367, and the dust cup 32 is connected to the second air channel 3610 and the vacuum motor 31 in sequence; the door mechanism 36 enters the second working state.

[0061] The following describes the operation of the various components of the door mechanism 36 when the portable cleaning host 3 is assembled to and detached from the upright body 2 with reference to the accompanying drawings.

[0062] like Figure 10 As shown, the door mechanism 36 is in the first working state at this time, that is, the portable cleaning host 3 has not yet been installed on the upright body 2. Figure 6-7 under the action of the compression spring 364 and the torsion spring 365, the first door 361 is maintained in a closed state of the docking port 368, and the second door 362 is maintained in an open state of the exhaust port 367.

[0063] like Figure 11-12As shown, the portable cleaning host 3 is in the process of being installed on the upright body 2. At this time, the door mechanism 36 is pressed by the top block 224 and switches from the second working state to the first working state. Specifically, the first door 361 is driven to rotate outward around the first axis X, and the docking port 368 is gradually opened. During the rotation of the first door 361, the push rod member 363 is driven to move from the outside to the inside, and the push rod member 363 further pushes the second door 361 to rotate around the second axis Y, and the exhaust port 367 is gradually closed. Figure 13-14 As shown, when the first door 361 is selected to make the docking port 368 completely open, the second door 362 is rotated to the position where the exhaust port 367 is closed, and the door mechanism 36 enters the first working state. In this state, the portable cleaning host 3 is successfully fluidly connected to the upright body 2. At this time, the air from the output interface 223 (shown by the solid arrow) can be allowed to enter the interior of the shell 360 from the docking port 368 and flow along the first air channel 369 toward the side where the vacuum motor 31 is located. The second air channel 3610 is closed. Thereafter, under the action of the vacuum motor 31, the dirty liquid, debris and air can be sucked into the dirty liquid recovery tank 5, and the dirty liquid and debris remain in the dirty liquid recovery tank 5. The air flows out of the dirty liquid recovery tank 5 and enters the vacuum motor 31 from the first air channel 369, and is then discharged.

[0064] like Figure 15-16 As shown, the portable cleaning host 3 is in the process of leaving the upright body 2. At this time, the force of the top block 224 disappears, and the door mechanism 36 switches from the first working state to the second working state under the reset action of the compression spring 364 and the torsion spring 365. Specifically, the first door 361 rotates toward the state of closing the docking port 368 until the docking port 365 is closed by the bottom, and the second door 362 rotates toward the state of opening the exhaust port 367 until the exhaust port 367 is opened; thereafter, the user can use the dust inlet 331 of the portable cleaning host 3 to suck dry garbage into the dust cup 32.

[0065] With the surface cleaning device of the present application, users can freely use the device for wet cleaning or dry vacuuming as needed; and during wet cleaning, since the air does not pass through the dust cup, the dust cup can always be kept in a dry state, making it more convenient for users to clean the dust cup.

Claims

1. A surface cleaning device, characterized in that: include: A base comprising: at least one roller brush in frictional contact with the surface to be cleaned; and a suction channel; an upright body, the lower portion of which is rotatably connected to the base assembly; a supply tank disposed on the upright body and configured to supply cleaning liquid to the at least one roller brush and / or the surface to be cleaned; a dirty liquid recovery tank, which is detachably mounted on the upright body and has a liquid inlet and an air outlet in fluid communication with the suction channel; A portable cleaning host, which is detachably arranged on the upright body and includes a vacuum motor, a dust cup with a dust collection chamber therein, and a door mechanism, the portable cleaning host having an exhaust port and a docking port in fluid communication with the dust collection chamber, the docking port being configured to be in fluid communication with the exhaust port when the portable cleaning host is mounted on the upright body, the door mechanism comprising a first door capable of opening and closing the docking port and a second door capable of opening and closing the exhaust port, the first door and the second door being arranged in a transmission manner; the door mechanism having a first working state and a second working state; in the first working state, the first door opens the docking port and the second door closes the exhaust port; in the second working state, the first door closes the docking port and the second door opens the exhaust port; and An actuating component is arranged on the upright body; the actuating component is configured to contact the door mechanism when the portable cleaning host is installed on the upright body, so as to actuate the door mechanism to switch from the second working state to the first working state.

2. The surface cleaning device according to claim 1, wherein The actuating component includes a top block, which abuts against the first door when the portable cleaning host is installed on the upright body.

3. The surface cleaning device according to claim 2, wherein: An output interface is provided at the upright body, and the output interface is fluidically connected to the air outlet. The top block is located at the output interface, and the output interface is fluidically connected to the docking interface when the portable cleaning host is installed on the upright body.

4. The surface cleaning device according to claim 3, wherein: The upright body includes a casing having a rear portion facing the user and a front portion away from the rear portion, the top block and the output interface are arranged at the front portion, and the portable cleaning host is detachably connected to the front portion.

5. The surface cleaning device according to claim 4, wherein: The dirty liquid recovery tank is detachably mounted at the rear portion.

6. The surface cleaning device according to claim 5, characterized in that The supply tank is detachably mounted on the rear portion and is located on the upper side of the dirty liquid recovery tank.

7. The surface cleaning device according to claim 2, wherein: The top block extends along the front-back direction.

8. The surface cleaning device according to claim 1, wherein The door mechanism includes at least one return spring, and the at least one return spring is configured to provide a return force for the door mechanism to switch toward the second working state when the portable cleaning host is separated from the upright body.

9. The surface cleaning device according to claim 8, wherein The door mechanism comprises a shell, the air outlet and the docking port are both arranged on the shell, and the first door and the second door are both rotatably connected to the shell.

10. The surface cleaning device according to claim 9, wherein The door mechanism further comprises a push rod component arranged between the first door and the second door; the push rod component has a first end and a second end opposite to each other, the first end is connected to the first door, and the second end abuts against the second door.

11. The surface cleaning device according to claim 10, wherein: The at least one return spring includes a first return spring disposed between the first end portion and the second door.

12. The surface cleaning device of claim 11, wherein: The first end portion is provided with a groove, the second door is provided with a stopper on a side wall surface facing the push rod component, and the first return spring is confined between the groove and the stopper.

13. The surface cleaning device of claim 10, wherein: The at least one return spring includes a second return spring disposed between the second door and the housing.

14. The surface cleaning device of claim 9, wherein: The shell includes an outer peripheral wall and an inner partition located inside the outer peripheral wall. The air outlet is located on the inner partition, and the docking port is located on the outer peripheral wall.

15. The surface cleaning device of claim 14, wherein: The inner partition includes a slope wall that forms an angle greater than 0° and less than 90° with the vertical plane.

16. The surface cleaning device of claim 9, wherein: The first door is connected to the shell body so as to be rotatable around a first axis, and the second door is connected to the shell body so as to be rotatable around a second axis. The first axis and the second axis are perpendicular to each other.

17. The surface cleaning device of claim 1, wherein: The vacuum motor is located on the upper side of the dust cup, and the door mechanism is located between the vacuum motor and the dust cup.

18. The surface cleaning device of claim 1, wherein: The portable cleaning host further comprises a battery pack, which is configured to power energy-consuming components on the surface cleaning device.

19. The surface cleaning device of claim 1, wherein: The portable cleaning host also includes a dust inlet pipe, at least part of which protrudes downward from the bottom of the dust cup, and the dust inlet pipe defines a dust inlet port. A receiving portion is provided on the upright body, and the receiving portion receives and receives the dust inlet pipe when the portable cleaning host is installed on the upright body.

20. The surface cleaning device of claim 1, wherein The surface cleaning device further comprises a locking mechanism for locking the portable cleaning host on the upright body, wherein the locking mechanism comprises an unlocking operating member provided on the portable cleaning host or the upright body.

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