CN114073462B

CN114073462B - Cleaning device

Info

Publication number: CN114073462B
Application number: CN202010834345.2A
Authority: CN
Inventors: 王旭宁; 朱广
Original assignee: Sharkninja China Technology Co Ltd
Current assignee: Sharkninja China Technology Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2023-07-18
Anticipated expiration: 2040-08-19
Also published as: CN114073462A

Abstract

The invention relates to a cleaning device, which comprises a base and a cleaning component, wherein the cleaning component is detachably arranged at the bottom of the base, and further comprises a vacuumizing device, the cleaning component is provided with a dust collection cavity, a dust collection opening and an air outlet, the dust collection opening and the air outlet are respectively communicated with the dust collection cavity, the dust collection opening is arranged at the lower part of the cleaning component to be close to a surface to be cleaned, a filter screen is arranged at the air outlet, an air inlet communicated with the vacuumizing device is arranged on the base, the air outlet is in clearance fit with the air inlet, and the cleaning component moves to enable the air outlet to be in butt joint communication with the air inlet when the vacuumizing device works. By adopting the technical scheme, when the surface to be cleaned is uneven, the cleaning assembly can turn over, move and the like relative to the base, so that the air outlet of the cleaning assembly is separated from at least partial area of the air inlet on the base for a short time to help to cross obstacles, the cleaning assembly can be better adapted to the household ground conditions of different users, and the cleaning assembly is simple and reliable in structure.

Description

Cleaning device

Technical Field

The invention relates to the field of household cleaning appliances, in particular to a cleaning device.

Background

With the progress of science and technology and the improvement of living standard of people, the electric appliance can at least partially replace manual cleaning and starts to walk into more and more ordinary user families. Self-moving cleaning robots, push rod/push rod cleaning devices and the like have become a standard in the user's home.

Taking push rod type cleaning equipment as an example, the existing push rod type cleaning equipment generally comprises a host machine, an operating rod arranged at the upper end of the host machine and a base arranged at the bottom end of the host machine, wherein a dust collecting device is arranged on the host machine or the base, a cleaning mop is fixedly arranged on the lower surface of the base, a dust suction opening is arranged on the base at the front end of the cleaning mop so as to suck and store dirt on the surface to be cleaned in the dust collecting device, and then the cleaning mop is used for cleaning the floor. To this end, there has been proposed in the prior art a disposable cleaning assembly having a dust collecting function for use with a push rod type cleaning apparatus, the cleaning assembly being fixedly mounted on a base. However, the cleaning component structure is fixedly arranged on the base, the cleaning component is in hard connection with the base, when the floor in the family of a user adopts a floor or a ceramic tile with a concave-convex grain structure and encounters some rugged barriers, the cleaning component is easy to be blocked to cause unsmooth movement, the use hand feeling of the user in the push-pull process is influenced, and the rugged area is also caused to be unclean; and when the user increases the push-pull force, it is easy to cause damage to the cleaning assembly or the cleaning device itself.

Disclosure of Invention

The invention aims to at least partially solve the technical problems and provide the cleaning device which is convenient to use and has strong adaptability.

The technical scheme adopted by the invention is as follows:

the utility model provides a cleaning device, includes base and cleaning component, cleaning component demountable installation is in the bottom of base, still includes evacuating device, cleaning component have dust collection chamber and with dust collection mouth and the air outlet that dust collection chamber communicates respectively, the dust collection mouth sets up in cleaning component lower part in order to be close to the clean surface, and air outlet department is equipped with the filter screen, be equipped with the air intake with evacuating device intercommunication on the base, air outlet and air intake clearance fit, evacuating device during operation cleaning component remove so that air outlet and air intake butt intercommunication.

Further, the cleaning assembly includes a support member having an extension at a front end thereof that extends from a bottom of the front end of the base.

Further, the extension portion is provided with a groove, the front end of the base is provided with a limiting portion, and the limiting portion is inserted into the groove.

Further, the area of the air outlet is Sm ² The vertical moving distance between the cleaning component and the air inlet is Hcm, and the ratio of H/S is in the range of 0.1-0.75, wherein H is not more than 0.8.

Further, the base comprises a wind gathering cavity formed by concave, the wind gathering cavity is arranged on the front side of the base, the air inlet is arranged at the bottom of the wind gathering cavity, and a wind gathering port communicated with the dust collection motor is arranged at the side part of the wind gathering cavity.

Further, the inner side of the air inlet is provided with a step part adjacent to the air inlet, or the base comprises a shell, the upper part of the shell is provided with a transparent part, and the transparent part forms at least one part of the air collecting cavity.

Further, the cleaning device comprises a host machine and an operating rod connected with the top end of the host machine, wherein the bottom end of the host machine is hinged with the middle part or the rear part of the base, and a spraying port for spraying liquid to the surface to be cleaned in front of the host machine is formed in the host machine.

Further, the main machine is in a downward depression state in a state of being lifted vertically so that the front end of the base is lower than the rear end of the base.

Further, the base is provided with a clamping device, the clamping device is provided with a switchable locking position and an unlocking position, and when the cleaning assembly is installed, the cleaning assembly moves relative to the base and is abutted against the clamping device, so that the clamping device automatically recovers and remains in the locking position after being switched from the locking position to the unlocking position, and the cleaning assembly is installed on the base.

Further, a sealing ring is arranged at the air inlet, and negative pressure is generated when the vacuumizing device works so that the air outlet abuts against the sealing ring.

The beneficial effects of adopting this technical scheme include: when the surface to be cleaned is uneven, the cleaning component can generate overturning, moving and other floating effects relative to the base, so that the air outlet of the cleaning component is separated from at least part of the area of the air inlet on the base for a short time to help to cross the obstacle, and when the surface to be cleaned is over the uneven surface, the cleaning component is quickly restored to the state that the air outlet is abutted against the air outlet due to the negative pressure effect generated by the vacuumizing device. Compared with the fixed hard connection mode in the prior art, the household floor system can better adapt to the household floor conditions of different users, has stronger adaptation capability and simple and reliable structure on the basis of maintaining the original cleaning level.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.

FIG. 1 is a schematic view of a cleaning device in the present technical solution;

FIG. 2 is an exploded view of a base and a cleaning assembly of the cleaning device according to the present disclosure;

FIG. 3 is a schematic view of a base structure of the cleaning device according to the present embodiment;

FIG. 4 is an exploded view of the main components of the host in the present solution;

FIG. 5 is a schematic cross-sectional view of a cleaning assembly;

FIG. 6 is a partial schematic view of the cross-sectional structure in the direction F-F in FIG. 3;

FIG. 7 is a schematic view of a cross-sectional configuration of the cleaning assembly when flipped;

FIG. 8 is a schematic view of a partial cross-sectional structure of the cleaning device in the present embodiment in an operating state;

FIG. 9 is an exploded view of the cleaning assembly;

FIG. 10a is a schematic view of the structure of the base and cleaning assembly in a separated state;

FIG. 10b is a schematic diagram showing the alignment of the limiting portion on the base and the groove on the cleaning assembly;

FIG. 10c is a schematic view of the base and cleaning assembly in an installed state.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

It should be noted that the described embodiments are only some embodiments of the present application, and not all embodiments, and that the following description of at least one exemplary embodiment is merely illustrative in nature and should not be taken as limiting the application and its application.

It will be appreciated that the cleaning device in this embodiment may be an autonomous mobile cleaning robot that can autonomously move and clean without being pulled out of the human power. The cleaning robot can also have the function of cleaning and dust collection, and can clean the bottom surface better by combining cleaning and mopping. Specifically, cleaning robot still has the basic station that is used for carrying out the butt joint to it and charges, still be equipped with belt cleaning device on the basic station, the belt cleaning device that berths on the basic station on automatically after cleaning robot accomplishes ground cleaning work corresponds the position, carries out mop self-cleaning or only cleans the mop when charging.

In the present embodiment, as shown in fig. 1 to 10, an exemplary provided cleaning apparatus is a push rod type cleaning device 100, which in a preferred embodiment of the present disclosure includes a main body 100, a lever 200, a base 300, and a cleaning assembly 400. Wherein the operation lever 200 is provided at the top end of the main body 100 (upper end of the main body 100 in fig. 1), and the other end of the operation lever 200 is provided with a handle portion 220 for an operator to grasp, so that the operator controls the working posture and the working state of the push rod type cleaning device by grasping the operation lever 200. The base 300 is disposed at a bottom end of the host 100 (a lower end of the host 100 in fig. 1) and is movably connected to the host, and includes a bottom case composed of an upper bottom case 310 and a lower bottom case 320. The cleaning assembly 400 is installed at the bottom of the base 300, and the cleaning assembly 400 contacts the floor during operation of the push-rod type cleaning apparatus for cleaning the floor. Specifically, as shown in fig. 5, the cleaning assembly 400 includes a dust collecting chamber 412, and a dust suction opening 413 and an air outlet 414 respectively communicating with the dust collecting chamber 412, the dust suction opening 413 is disposed at a lower portion of the cleaning assembly 400 so as to be close to a surface to be cleaned, the main machine 100 is provided with a vacuum device 110, the base 300 is provided with an air inlet, and the vacuum device 110 is connected to the base 300 through a pipeline and communicates with the air inlet. Specifically, the vacuum pumping device 110 is a dust collection motor.

In this embodiment, the cleaning assembly 400 is detachably mounted on the base 300, and after the mounting is completed, the air outlet 414 is in clearance fit with the air inlet 330, and when the vacuum apparatus 110 is in operation, the cleaning assembly 400 moves upward to enable the air outlet 414 to abut against the air inlet 330 so as to communicate the dust collecting cavity 412 with the air inlet 330 and the vacuum apparatus 110. Specifically, the movable gap includes a vertical gap in the up-down direction and a horizontal gap in the left-right and/or front-rear directions. As shown in fig. 6, when the cleaning device is lifted and suspended, the cleaning assembly is in a state as shown in the figure under the action of gravity, and the vertical gap between the air outlet and the air inlet is H.

In this way, when the surface to be cleaned with the concave-convex surface is cleaned, the stress position and time are different when the concave-convex area is contacted with the cleaning surface of the cleaning component, the cleaning component can generate overturning, moving and other floating effects relative to the base, so that the air outlet of the cleaning component is separated from at least part of the area of the air inlet on the base for helping to pass, and when the left side of the cleaning component encounters a convex obstacle, the state that the right side area of the air outlet is separated from the right side area of the air inlet due to the overturning of the cleaning component is shown in fig. 7; when the cleaning component passes over the rugged surface, the cleaning component is quickly restored to the state that the air outlet is abutted against the air outlet under the action of negative pressure generated by the vacuumizing device. Compared with the fixed hard connection mode in the prior art, the household floor system can better adapt to the household floor conditions of different users, has stronger adaptation capability and simple and reliable structure on the basis of maintaining the original cleaning level.

Further, the area of the air outlet 414 is S m ² The vertical moving distance between the cleaning component and the air inlet is Hcm, and the ratio of H/S is in the range of 0.1-0.75, wherein H is not more than 0.8.

In this embodiment, the range of the ratio of H/S is limited to 0.1-0.75, where H does not exceed 0.8, so that a certain negative pressure can be maintained during the separation of the air outlet and the air inlet of the cleaning assembly, and the air outlet can be better restored to the state of abutting when the cleaning assembly passes over the uneven surface. If the ratio range is greater than 0.75, the cleaning component is difficult to separate from the air inlet to turn over; if the ratio is less than 0.1, the cleaning assembly may return to the air outlet-to-air outlet abutting state after passing over the uneven surface.

Specifically, as shown in fig. 4, the main unit 100 further includes an internal bracket 111, a front case 112, a rear case 113, a liquid storage case 120, a battery (not shown), a water pump (not shown), and a control board (not shown). The battery is electrically connected with the dust collection motor and the water pump motor respectively, a water spray button 221 and a dust collection button 222 are arranged on the handle part, the working state of the water pump is controlled by the water spray button 221, and the working state of the dust collection fan is controlled by the dust collection button 222; the water pump is communicated with the liquid storage box 120 through a water pipe, and is also communicated with the spraying port 101 through the water pipe. The front shell 112 is provided with a threaded hole column, the inner support 111 is provided with a through hole, the rear shell 113 is provided with a through hole, and a screw is screwed with the threaded hole column on the front shell 112 after passing through the through holes on the rear shell 113 and the inner support 111, so that the inner support 111, the front shell 112 and the rear shell 113 are fixedly connected together.

As shown in fig. 1, a water spray button 221 is provided at the front side of the handle 220, and when the water spray button 221 is pressed, the push rod type cleaning apparatus can perform a spray operation to wet the floor. A dust suction button 222 is provided at the rear side of the handle 220, and when the dust suction button 222 is pressed, the push rod type cleaning apparatus can perform a dust suction operation. Further, the water spray button 221 and the dust suction button 222 may be provided at any other position of the handle portion 220 as necessary by those skilled in the art, for example, the water spray button 221 and the dust suction button 222 may be provided at the front side or the rear side of the handle portion 220. In addition, the skilled person can replace the water spray button 221 and the dust suction button 222 with any other feasible operation keys, such as touch operation keys, as required.

Further, as shown in connection with fig. 2, 5, 8, 9, the cleaning assembly includes a support member 410, the front end of the support member 410 having an extension 411, the extension 411 protruding from the bottom of the front end of the chassis 300.

In this embodiment, by providing the extension portion protruding toward the front of the base on the support member, the extension portion can first contact with the obstacle of the uneven area during the cleaning process of pushing the cleaning device forward, especially increase the turning force arm when the cleaning assembly turns over, reduce the force capable of causing the turning over under the condition of constant turning moment, thereby promoting the movable turning over of the cleaning assembly in the uneven area and improving the moving smoothness of the cleaning assembly in the uneven area.

Specifically, the cleaning assembly 400 includes a support member 410, a floor mopping member 420, a filter screen 430, and a one-way valve 440. Wherein, the floor mopping member 420 is disposed at the bottom end of the supporting member 410, the filter screen 430 is disposed at the top end of the supporting member 410, and the check valve 440 is disposed at the inner side of the supporting member 410. A dust collection chamber 412, a dust collection port 413, and an air outlet 414 are provided on the support member 410. Wherein, the dust collection opening 413 is formed at the front end of the dust collection chamber 412, and the air outlet 414 is formed at the top end of the dust collection chamber 412 and is covered by the filter screen 430. In the installed state, the dust collection chamber 412 communicates with the air inlet 330 through the air outlet 414. The support member 410 is provided inside with a slope 415 aligned with the suction opening 413, and the slope 415 is matched with the movable portion 442 of the check valve 440, thereby closing the suction opening 413. The filter mesh 430 is disposed at the top end of the support member 410 and is fixedly coupled with the support member 410 by means of bonding, ultrasonic welding, screw coupling, etc. Preferably, the filter screen extends to the edge of the cleaning assembly so that the cleaning assembly has a buffering effect when floating, and collision when the air outlet on the supporting member is in butt joint with the air inlet is reduced. It will be appreciated by those skilled in the art that the floor mopping member can be any feasible member, such as a sponge, cotton cloth, cloth strips, etc.

As will be appreciated by those skilled in the art, when the suction fan is in operation, the negative pressure generated by the suction fan drives air from the suction opening 413 into the dust chamber 412 and then through the filter screen 430 to the suction fan. In this process, when air flowing to the filter screen 430 flows to the movable portion 442, a force is applied to the lower surface of the movable portion 442, so as to push the movable portion 442 to rotate to a position where it is in contact with the lower surface of the filter screen 430. In other words, during the operation of the dust suction fan, an air pressure difference is generated between the upper and lower sides of the movable portion 442 due to the air flow, and the air pressure difference drives the movable portion 442 to rotate to a position where it is attached to the lower surface of the filter screen 430.

Preferably, the check valve 440 is bent to form a fixed portion 441 and a movable portion 442. The fixing portion 441 is fixedly coupled to the filter screen 430, and thus, fixedly coupled to the support member 410. The movable portion 442 can move to a first position and a second position. The movable part 442 is attached to the inclined surface 415 in the support member 410 at the first position, and thus closes the dust collection opening 413; the movable portion 442 is separated from the inclined surface 415 in the support member 410 in the second position, and thus opens the suction opening 413.

Preferably, the check valve 440 is a V-shaped sheet structure made of plastic, metal foil, or any other elastic material. So that the movable portion 442 can be rotated from the second position to and maintained at the first position by the resilient force of the check valve 440 itself and thus close the suction opening 413. It is further preferable that the resilient force is smaller than a negative pressure applied to the movable portion 442 when the suction fan is operated, so that a pressure difference between the inside and outside of the movable portion 442 can open the movable portion 442 and thus the suction port 413 when the suction fan is operated.

Further, as the push-rod type dust collector is used, more and more dust is attached to the filter screen 430, so that part of the filter holes on the filter screen 430 are blocked, the filter screen 430 blocks the air flow, the air flow rate is reduced, the pressure difference between the upper side and the lower side of the movable portion 442 is reduced, the movable portion 442 cannot be attached to the filter screen 430 under the action of the pressure difference, and a gap capable of accommodating foreign matters is formed between the movable portion 442 and the filter screen 430. That is, the movable portion 442 of the check valve 440 can be bonded to the filter 430 when the filter 430 is relatively clean, and cannot be bonded to the filter 430 when the filter 430 is relatively dirty.

Specifically, the included angle between the movable portion 442 and the fixed portion 441 in the first position is smaller than 90 °, preferably smaller than 60 °, so that a part of foreign matter (such as dust) can be carried above the movable portion 442 when the movable portion 442 is in any position, and thus when the dust suction motor stops working, gravity of the part of foreign matter can provide vertical downward pressure to the movable portion 442, so that the movable portion 442 is forced to rotate from the second position to the first position, and the dust suction opening 413 is closed.

Further, a clamping device for installing the cleaning component is arranged on the base, and a triggering part for driving the triggering clamping device to release the cleaning component is arranged on the outer surface of the base or the host. Preferably, the triggering part is arranged on the outer surface of the base.

Specifically, in the process that the base moves towards the cleaning component, the cleaning component is abutted against the clamping device, and then the clamping device is automatically restored and kept at the locking position after being switched from the locking position to the unlocking position along with the continued movement of the base, so that the cleaning component is mounted on the base.

By providing the engagement means on the base, the user is able to lift the base by lifting the lever so that the base is moved over the cleaning assembly placed on the floor and then the base is lowered onto the cleaning assembly and the engagement means is thereby caused to lock the cleaning assembly onto the base. Therefore, the cleaning device disclosed by the invention can mount the cleaning assembly on the assembly without the user contacting the cleaning assembly, so that the situation that the dirty cleaning assembly pollutes the hands of the user is avoided. Further, by configuring the base to take a depression posture in a state in which the cleaning device is lifted, the front end of the base is positioned at the lowermost end of the base so that the front end of the base is brought into contact with the cleaning assembly at first. Moreover, based on the eccentric arrangement of the axis of the dust collection motor and the axis of the operating rod, and the operating rod is arranged on the front side of the dust collection fan, so that the front surface of the host computer is as close to the front surface of the operating rod as possible, the situation that a user can obtain a better visual field when looking down from the position of the handle and can be matched with the cleaning assembly through the fact that the base is aligned with the cleaning assembly or not by holding the double hand feeling of the operating rod is avoided, and the situation that the base cannot be installed in place when the base is aligned with the cleaning assembly is avoided.

Specifically, as shown in fig. 2, 6 and 7, the engaging means includes a first jaw 381 disposed on the left side of the base 300 and a second jaw 382 disposed on the right side of the base 300. The first and second claws 381 and 382 are capable of securing the cleaning assembly 400 to the base 300 by a clasping manner. The first jaw 381 is pivotally connected to the lower bottom chassis 320, and a first reset member (not shown) is provided between the first jaw 381 and the lower bottom chassis 320 for rotating and maintaining the first jaw 381 from the unlocking position to the locking position. The second jaw 382 is pivotally connected to the lower bottom case 320, and a second reset member (not shown) is provided between the second jaw 382 and the lower bottom case 320 for rotating and holding the second jaw 382 from the unlocked position to the locked position. In the locked position, the first and second claws 381, 382 respectively catch on the circumferential edge of the cleaning assembly 400, and in particular on the circumferential edge of the support member 410 of the cleaning assembly 400. Wherein the first return member and the second return member are torsion springs. Alternatively, the person skilled in the art may provide the first restoring member and/or the second restoring member as any other feasible elastic member such as a tension spring, a compression spring, etc.

In order to facilitate the user to detach the cleaning assembly 400 from the base 300, the first jaw 381 is provided with a trigger portion 381a, and the trigger portion 381a is exposed at the upper surface of the base 300. When the trigger part 381a is pressed, the first jaw 381 moves from the locked position to the unlocked position, so that the left end of the cleaning assembly 400 falls down by the self-gravity and, accordingly, the right end of the cleaning assembly 400 is separated from the second jaw 382, so that the cleaning assembly 400 is separated from the base 300.

During the process of mounting the cleaning assembly 400 and the base 300 together: the cleaning assembly 400 is first placed on the floor (as shown in fig. 10 a), then the cleaning device is lifted and the base 300 is aligned with the cleaning assembly 400, and then the base 300 is gradually brought closer to the cleaning assembly 400 (as shown by the arrow in fig. 10 a). As the base 300 gradually approaches the cleaning assembly 400, the limiting structure 321 is first contacted with the cleaning assembly 400 (as shown in fig. 10 b), and inserted into the groove 4111 on the support member 410, so as to guide the installation of the base 300 and the cleaning assembly 400. Subsequently, the supporting member 410 of the cleaning assembly 400 is abutted against the first and second pawls 381 and 382, and then the first and second pawls 381 and 382 are rotated from the locked position to the unlocked position, and then the first and second pawls 331 and 332 are automatically restored and maintained in the locked position by the respective reset members, and thus the cleaning assembly 400 is locked to the base 300 (as shown in fig. 10 c).

Further, the extension part 411 of the support member 410 is provided with a groove 411a with an upward opening, a projection of the front end of the bottom case on the support member 410 falls into the groove 411a, the front end of the bottom case is provided with a stop part 321 extending toward the support member, and the stop part 321 is inserted into the groove. Preferably, the number of the guide structures 321 is two, and the guide structures are respectively positioned at the left and right sides of the lower bottom case 320.

In this embodiment, through setting up the recess on the extension, set up spacing portion on the drain pan, just spacing portion stretches into the recess, make the upset axis when the upset is produced to the extension contact unsmooth regional obstacle moves forward to spacing portion and recess cooperation position, this upset axis is more fixed, reliable. Especially, the rotating force arm when the cleaning assembly is turned over is increased, and the force capable of causing the cleaning assembly to turn over is reduced under the condition that the turning moment is constant, so that the cleaning assembly is promoted to movably turn over in the rugged region, and the moving smoothness of the cleaning assembly in the rugged region is improved.

Further, the bottom end of the main machine 100 is hinged to the middle or rear portion of the base 300, and a spraying opening 101 for spraying liquid to the surface to be cleaned in front of the main machine 100 is provided on the main machine 100.

In this embodiment, the bottom of host computer is articulated with the middle part or the rear portion of base, be equipped with on the host computer be used for to the place ahead of host computer wait to clean the surface spray mouth of liquid, because the spout is located the base top and leans on the rear position, will have a small amount of water to drop to the base in the in-process of spraying water, and then flow subaerial along the roof and the lateral wall of base. In addition, although water flowing from the base to the ground can be dragged clean by the mop in the process of mopping, when mopping equipment is placed at a corner and the like, the water on the base still flows to the ground and cannot be dragged dry in time, so that the ground is wet and slippery, secondary pollution can be caused to the ground, and a family member can slip easily. By providing the recess in the extension, liquid from the base and guided down by the guide structure can be received. Preferably, the exposed parts of the upper surface of the front part of the bottom shell are all provided with arc-shaped surfaces. Because set up by stretching into the spacing portion of recess on the base, spacing portion can be better with the liquid water conservancy diversion to the recess. Optionally, the left and right ends of the groove in the left and right direction are provided with inclined surfaces for guiding the stopper portion to be inserted into the groove.

Further, when the cleaning apparatus is lifted up in the vertical direction, the base 300 can take a downward posture (as shown in fig. 10a and 10 b), so that the limiting structure 321 can be located at the lowest end of the base 300.

In this embodiment, by making the base take a depression position when the main unit is lifted up vertically, the residual water on the upper surface of the base can flow into the groove along the surface of the bottom case when lifted up. In addition, because the dust absorption mouth is located the front side of clean subassembly, when dismantling clean subassembly, the unavoidable problem that can produce the dust and raise, because the base is the state of nodding down, can be better shelter from the dust of raising.

Further, the axis of the suction motor is eccentric to the axis of the operating lever 200, and the operating lever 200 is disposed at the front side of the suction fan such that the front surface of the main body 100 is as close to the front surface of the operating lever 200 as possible, thereby enabling a user to obtain a better view when looking forward from the handle 220. At the same time, the gravity center of the whole host 100 is further back, the gravity applied to the user by the handle 220 is increased, and the holding hand feeling of the user is optimized.

Further, as shown in fig. 8, the base includes a concave wind collecting cavity 340, the wind collecting cavity 340 is disposed at the front side of the base, the air inlet 330 is disposed at the bottom of the wind collecting cavity 340, and a wind collecting port 350 communicating with the dust collecting motor is disposed at the side of the wind collecting cavity 340. Preferably, the inner side of the air inlet is provided with a step part adjacent to the air inlet.

The filter screen can be to gather the top direction deformation of wind chamber under the effect of negative pressure, and especially when using for a long time, the filter screen also can take place to warp and further increase its during operation to gather the deformation volume of wind chamber top direction, and its deformation volume can be more showing in its middle region. In addition, the filter screen can also drive clean subassembly whole floating towards gathering wind chamber direction protrusion deformation to expand the area of filter screen in air intake department through taut filter screen, reduce the filter screen and by local jam risk. If the distance between the region and the air gathering opening is very short, the dust filtered in the region can block the air intake, so that the negative pressure is reduced, and the dust collection effect is seriously affected. In this embodiment, through setting up hurricane mouth in the lateral part that gathers the wind chamber for gather the wind gap relatively and keep away from the great region of filter screen deformation and press close to the edge of filter screen, reduce the influence of filter screen deformation to the air current, guarantee dust collection effect. In addition, the inner side of the air inlet is provided with a step part adjacent to the air inlet so as to reduce the deformation of the periphery of the filter screen.

Further, a sealing ring 360 is arranged at the air inlet, and negative pressure is generated when the vacuumizing device works so that the air outlet abuts against the sealing ring 360; the lower case 320 is provided thereon with a transparent portion 322 forming at least a part of the wind collecting chamber 340. Preferably, the transparent portion 322 is integrally formed with the lower chassis 320, and at least a state of the cleaning assembly can be observed through the transparent portion.

Further, as shown in fig. 8, a mounting cavity is provided on the base 300 (specifically, the lower bottom case 320) and enables the mounting cavity to receive a portion of the top of the cleaning assembly 400.

As shown in fig. 1, in a preferred embodiment of the present disclosure, the push-type cleaning device is further provided with a charging means 500, which charging means 500 is used to charge the battery of the push-type cleaning device.

In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or unit in question must have a particular orientation, be constructed and operate in a particular orientation. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims

1. The utility model provides a cleaning device, includes base and cleaning component, cleaning component demountable installation is in the bottom of base, its characterized in that still includes evacuating device, cleaning component have dust collection chamber and with dust collection chamber communicates respectively dust absorption mouth and air outlet, the dust absorption mouth setting is in cleaning component lower part in order to be close to the clean surface, and air outlet department is equipped with the filter screen, be equipped with the air intake with evacuating device intercommunication on the base, air outlet and air intake clearance fit, when clean non-rugged surface, evacuating device during operation cleaning component removes so that air outlet and air intake butt intercommunication.

2. The cleaning apparatus of claim 1, wherein the cleaning assembly comprises a support member having an extension at a front end thereof, the extension extending from a bottom of the front end of the base.

3. The cleaning device according to claim 2, wherein the extension portion is provided with a groove, and a front end of the base is provided with a stopper portion, and the stopper portion is inserted into the groove.

4. The cleaning apparatus of claim 1, wherein the air outlet has an area Sm ² The vertical moving distance between the cleaning component and the air inlet is Hcm, and the ratio of H/S is in the range of 0.1-0.75, wherein H is not more than 0.8.

5. The cleaning apparatus defined in any one of claims 1-4, wherein the base comprises a concave wind-collecting chamber, the wind-collecting chamber is disposed on a front side of the base, the air inlet is disposed at a bottom of the wind-collecting chamber, and a wind-collecting port is disposed at a side of the wind-collecting chamber and is communicated with the dust suction motor.

6. The cleaning device of claim 5, wherein the air inlet is provided with a stepped portion on an inner side thereof, the stepped portion being disposed adjacent to the air inlet, or wherein the base comprises a housing, an upper portion of the housing being provided with a transparent portion, the transparent portion forming at least a portion of the air gathering chamber.

7. The cleaning device according to any one of claims 1 to 4, comprising a main body, an operation lever connected to a top end of the main body, a bottom end of the main body being hinged to a middle or rear portion of the base, and a spray opening for spraying liquid to a surface to be cleaned in front of the main body being provided on the main body.

8. The cleaning apparatus of claim 7, wherein the main unit is in a downward posture in a state where it is lifted vertically so that a front end of the base is lower than a rear end of the base.

9. The cleaning apparatus of claim 7, wherein the base is provided with a snap-fit device having a switchable locked position and an unlocked position, the cleaning assembly moving relative to the base and abutting the snap-fit device when installed such that the snap-fit device automatically reverts to and remains in the locked position after switching from the locked position to the unlocked position to mount the cleaning assembly to the base.

10. The cleaning apparatus defined in any one of claims 1-4, wherein a seal ring is provided at the air inlet, and wherein the vacuum pump is operated at a negative pressure to urge the air outlet against the seal ring.