CN114073462B - a cleaning device - Google Patents

Abstract

The invention relates to a cleaning device, comprising a base and a cleaning assembly, the cleaning assembly is detachably mounted on the bottom of the base, and also includes a vacuuming device, the cleaning assembly has a dust collection chamber and a cleaning assembly respectively communicated with the dust collection chamber The dust suction port and the air outlet, the dust suction port is arranged on the lower part of the cleaning assembly to be close to the surface to be cleaned, the air outlet is provided with a filter, the base is provided with an air inlet connected to the vacuum device, and the air outlet is connected to the air inlet The movement of the air outlet is matched with the gap, and the cleaning component moves when the vacuum device is working so that the air outlet and the air inlet are in contact with each other. With this technical solution, when the cleaning surface has uneven surface to be cleaned, the cleaning component can produce a "floating" effect such as turning over and moving relative to the base, so that at least part of the air outlet of the cleaning component is temporarily separated from the air inlet on the base. It helps to overcome obstacles, can better adapt to the home ground conditions of different users, and has a simple and reliable structure.

Description

a cleaning device

technical field

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

Background technique

With the advancement of science and technology and the improvement of people's living standards, cleaning appliances that can at least partially replace manual cleaning have begun to enter more and more ordinary user households. Self-moving cleaning robots and push rod/push rod cleaning equipment have become standard equipment in users' homes.

Taking the pusher type cleaning equipment as an example, the existing pusher type cleaning equipment usually includes a main machine, an operating rod arranged on the upper end of the main machine, and a base arranged at the bottom of the main machine. The main machine or the base is provided with a dust collecting device. A cleaning mop is fixedly installed on the surface, and a dust suction port is set on the base of the front end of the cleaning mop to suck the dirt on the surface to be cleaned and store it in the dust collection device, and then wipe the floor with the mop. For this reason, the prior art also proposes a disposable cleaning assembly with a dust collection function used in conjunction with a push rod type cleaning device, and the cleaning assembly is fixedly installed on a base. However, the cleaning component structure is fixedly installed on the base, and a "hard" connection is used between the cleaning component and the base. When there is an obstacle, the cleaning component is easily blocked, resulting in unsmooth movement, affecting the user's feel during the push-pull process, and also causing the uneven area to be cleaned uncleanly; and when the user increases the push-pull force, it is easy to cause the cleaning component or The cleaning equipment itself is damaged.

Contents of the invention

The present invention aims at at least partially solving the above technical problems, and provides a cleaning device that is easy to use and has strong adaptability.

The technical scheme that the present invention adopts is as follows:

A cleaning device, comprising a base and a cleaning assembly, the cleaning assembly is detachably installed on the bottom of the base, and also includes a vacuuming device, the cleaning assembly has a dust collection chamber and a dust suction port respectively communicated with the dust collection chamber and the air outlet, the dust suction port is arranged at the bottom of the cleaning assembly to be close to the surface to be cleaned, a filter screen is provided at the air outlet, an air inlet connected to the vacuum device is provided on the base, and the movable gap between the air outlet and the air inlet is Cooperate, when the vacuum device works, the cleaning component moves so that the air outlet and the air inlet are in contact with each other.

Further, the cleaning assembly includes a support member, the front end of the support member has an extension, and the extension protrudes from the bottom of the front end of the base.

Further, the extension part is provided with a groove, and the front end of the base is provided with a limiting part, and the limiting part 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 does not exceed 0.8.

Further, the base includes an air-gathering cavity formed inwardly, the wind-gathering cavity is set on the front side of the base, the air inlet is set at the bottom of the wind-gathering cavity, and the side of the wind-gathering cavity is provided with The air gathering port connected to the vacuum motor.

Further, the inner side of the air inlet is provided with a stepped portion adjacent to the air inlet, or the base includes a housing, and a transparent part is provided on the upper part of the housing, and the transparent part forms the air collecting chamber. at least partly.

Further, it includes a host, an operating rod connected to the top of the host, the bottom of the host is hinged to the middle or rear of the base, and the host is provided with a device for spraying to the surface to be cleaned in front of the host. Spray nozzle for spraying liquid.

Further, when the main machine is lifted vertically, it is in a downward posture so that the front end of the base is lower than the rear end of the base.

Further, the base is provided with an engaging device, and the engaging device has a switchable locking position and an unlocking position. When installed, the cleaning component moves relative to the base and abuts against the engaging device, so that The engaging device switches from the locking position to the unlocking position and then automatically recovers and remains in the locking position to install the cleaning component to the base.

Further, the air inlet is provided with a sealing ring, and the negative pressure of the vacuum device makes the air outlet press against the sealing ring.

The beneficial effects of adopting this technical solution include: when the surface to be cleaned is uneven, the cleaning component can produce a "floating" effect such as turning over and moving relative to the base, so that at least part of the air outlet of the cleaning component is temporarily separated from the air inlet on the base To help overcome obstacles, when the uneven surface has been crossed, the cleaning assembly quickly returns to the state where the air outlet is in contact with the air outlet due to the negative pressure generated by the vacuum device. Compared with the fixed "hard" connection method in the prior art, it can better adapt to the home ground conditions of different users. On the basis of maintaining the original clean level, the adaptability is stronger, and the structure is simple and reliable.

Description of drawings

The accompanying drawings, which are part of the technical solution of the application, are used to further understand the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention.

Fig. 1 is a schematic structural view of the cleaning device in the technical solution;

Fig. 2 is an exploded view of the base and cleaning components of the cleaning device in the technical solution;

Fig. 3 is a schematic view of the base structure of the cleaning device in the technical solution;

Fig. 4 is an exploded view of main components of the host in the technical solution;

Fig. 5 is a schematic cross-sectional structure diagram of a cleaning assembly;

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

Fig. 7 is a schematic diagram of the cross-sectional state of the cleaning assembly when it is turned over;

Fig. 8 is a schematic diagram of a partial cross-sectional structure of the cleaning device in the working state of the technical solution;

Fig. 9 is a schematic diagram of an exploded structure of a cleaning assembly;

Fig. 10a is a schematic structural diagram of a state where the base and the cleaning component are separated;

Fig. 10b is a schematic structural diagram of the alignment state of the position-limiting part on the base and the groove on the cleaning component;

Fig. 10c is a schematic diagram of the structure of the base and the cleaning assembly in a state where the installation is completed.

Detailed ways

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

It should be noted that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the following description of at least one exemplary embodiment is actually only illustrative, and should not be used as a reference for the present application and limitations of its application.

It can be understood that the cleaning device in this embodiment may be an autonomous mobile cleaning robot, and the autonomous mobile floor mopping robot can autonomously move and perform cleaning without manpower. The cleaning robot can also have a sweeping and dust-absorbing function, and realize better cleaning of the bottom surface by combining sweeping and mopping. Specifically, the cleaning robot also has a base station for docking and charging. The base station is also equipped with a cleaning device. When the cleaning robot finishes cleaning the ground, it automatically parks at the corresponding position of the cleaning device on the base station. Auto-clean the mop while charging or just clean the mop.

In this embodiment, as shown in FIGS. 1 to 10 , the exemplary cleaning device provided is a pusher type cleaning device 100. In a preferred embodiment of the present disclosure, the pusher type cleaning device includes a host 100, an operating rod 200, base 300 and cleaning assembly 400. Wherein, the operating lever 200 is arranged on the top of the main engine 100 (the upper end of the main engine 100 in FIG. To control the working posture and working state of the push rod cleaning equipment. The base 300 is arranged at the bottom of the host 100 (the lower end of the host 100 in FIG. 1 ) and is movably connected with the host. The base includes a bottom shell, and the bottom shell is composed of an upper bottom shell 310 and a lower bottom shell 320 . The cleaning assembly 400 is installed on the bottom of the base 300, and the cleaning assembly 400 is in contact with the ground during the working process of the pusher type cleaning device, and is used for cleaning the ground. Specifically, as shown in FIG. 5 , the cleaning assembly 400 includes a dust collection chamber 412 and a dust suction port 413 and an air outlet 414 respectively communicating with the dust collection chamber 412. The dust suction port 413 is arranged at the bottom of the cleaning assembly 400 to Close to the surface to be cleaned, the host 100 is provided with a vacuum device 110 , and the base 300 is provided with an air inlet, and the vacuum device 110 is connected to the base 300 through a pipeline and communicated with the air inlet. Specifically, the vacuum device 110 is a vacuum motor.

In this embodiment, the cleaning assembly 400 is detachably installed on the base 300, and after the installation is completed, the air outlet 414 is in cooperation with the air inlet 330. When the vacuum device 110 is working, the cleaning assembly 400 moves upward to let The tuyere 414 abuts against the air inlet 330 to communicate with the dust collecting chamber 412 , the air inlet 330 and the vacuum device 110 . Specifically, the movable gaps include vertical gaps in the up-down direction and horizontal gaps in the left-right and/or front-rear directions. As shown in FIG. 6 , when the cleaning device is suspended in the air, the cleaning assembly is in the state shown in the figure under the action of gravity, and the vertical gap between the air outlet and the air inlet is H at this time.

In this way, when cleaning the surface to be cleaned with unevenness, the contact position and time between the uneven area and the cleaning surface of the cleaning component are different, and the cleaning component can produce "floating" effects such as flipping and moving relative to the base, so that The air outlet of the cleaning assembly is temporarily separated from the air inlet on the base at least in part to help the overpass. Figure 7 shows that when the left side of the cleaning assembly encounters a raised obstacle, the cleaning assembly turns over and the right side of the air outlet The side area is separated from the right area of the air inlet; when the uneven surface has been crossed, the cleaning assembly quickly returns to the state where the air outlet is in contact with the air outlet due to the negative pressure generated by the vacuum device. Compared with the fixed "hard" connection method in the prior art, it can better adapt to the home ground conditions of different users. On the basis of maintaining the original clean level, the adaptability is stronger, and the structure is simple and reliable.

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 does not exceed 0.8.

In this embodiment, by limiting the ratio of H/S to 0.1-0.75, wherein H does not exceed 0.8, a certain negative pressure can be maintained during the detachment of the air outlet and air inlet of the cleaning component, so as to ensure that the cleaning component can be cleaned when crossing unevenness. The surface of the surface can be better restored to the state where the air outlet is in contact with the air outlet. If the range of the ratio is greater than 0.75, it may cause the cleaning component to be difficult to get out of the air inlet and cause activities such as turning over; if the range of the ratio is less than 0.1, it may cause the cleaning component to return to the air outlet and the air outlet after crossing the uneven surface The speed of the abutment state is too slow.

Specifically, as shown in FIG. 4, the host 100 also includes an internal bracket 111, a front shell 112, a rear shell 113, a liquid storage box 120, a battery (not shown in the figure), a water pump (not shown in the figure), and control panel (not shown). The battery is electrically connected to the dust suction motor and the water pump motor respectively, and the handle is provided with a water spray button 221 and a dust suction button 222. The working state of the water pump is controlled by the water spray button 221, and the working state of the dust suction fan is controlled by the suction The dust button 222 controls; the water pump is communicated with the liquid storage box 120 through the water pipe, and the water pump is also communicated with the spray port 101 through the water pipe. The front shell 112 is provided with threaded holes, the internal bracket 111 is provided with through holes, and the rear shell 113 is provided with through holes. The threaded holes are screwed together, so that the inner bracket 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 on the front side of the handle portion 220 , and when the water spray button 221 is pressed, the push rod type cleaning device can perform spray operation to wet the ground. The rear side of the handle 220 is provided with a dust suction button 222, when the dust suction button 222 is pressed, the push rod type cleaning device can perform dust suction operations. In addition, those skilled in the art can also arrange the water spray button 221 and the dust suction button 222 at other arbitrary positions of the handle portion 220 as required, for example, the water spray button 221 and the dust suction button 222 are all arranged on the handle portion 220. front or back. In addition, those skilled in the art can replace the water spray button 221 and the vacuum button 222 with any other feasible operation keys, such as touch operation keys, as required.

Further, as shown in FIGS. 2 , 5 , 8 , and 9 , the cleaning assembly includes a support member 410 , the front end of the support member 410 has an extension 411 , and the extension 411 protrudes from the bottom of the front end of the base 300 .

In this embodiment, by providing an extension protruding toward the front of the base on the support member, during the cleaning process of pushing the cleaning device forward, the extension can first contact the obstacle in the concave-convex area, especially the enlarged The rotating force arm when the cleaning component is turned over reduces the force that can cause it to turn over under the condition of constant turning moment, thereby promoting the active turning of the cleaning component in the uneven area and improving the smoothness of the movement of the cleaning component in the uneven area.

Specifically, the cleaning assembly 400 includes a supporting member 410 , a mopping member 420 , a filter 430 and a one-way valve 440 . Wherein, the mopping member 420 is arranged at the bottom of the support member 410 , the filter 430 is arranged at the top of the support member 410 , and the one-way valve 440 is arranged inside the support member 410 . The dust collecting cavity 412 , the dust suction port 413 and the air outlet 414 are arranged on the supporting member 410 . Wherein, the dust suction port 413 is formed at the front end of the dust collecting chamber 412 , and the air outlet 414 is formed at the top of the dust collecting chamber 412 and is covered by the filter net 430 . In an installed state, the dust collecting chamber 412 communicates with the air inlet 330 through the air outlet 414 . The inside of the support member 410 is provided with an inclined surface 415 aligned with the suction port 413 , and the inclined surface 415 is matched with the movable part 442 of the one-way valve 440 so as to close the suction port 413 . The filter screen 430 is arranged on the top of the support member 410 and is fixedly connected with the support member 410 by means of bonding, ultrasonic welding, screw connection and the like. Preferably, the filter screen extends to the edge of the cleaning assembly, so that the cleaning assembly has a buffering effect when it "floats", and reduces the collision when the air outlet on the support member is docked with the air inlet. Those skilled in the art can understand that the mopping member may be any feasible member, such as sponge, cotton cloth, cloth strip and the like.

Those skilled in the art can understand that, when the dust suction fan is working, the negative pressure generated by the dust suction fan will drive air from the dust suction port 413 into the dust collection chamber 412 , and then flow to the dust suction fan through the filter screen 430 . During this process, when the air flowing to the filter 430 flows to the movable part 442, it will exert a force on the lower surface of the movable part 442, and then push the movable part 442 to rotate to fit the lower surface of the filter 430. s position. In other words, during the working process of the dust suction fan, the upper and lower sides of the movable part 442 will generate an air pressure difference due to the flow of air, and the air pressure difference will drive the movable part 442 to rotate to a position where it is attached to the lower surface of the filter screen 430. Location.

Preferably, the one-way valve 440 is bent to form a fixed part 441 and a movable part 442 . The fixing part 441 is fixedly connected with the filter screen 430 , and thus is fixedly connected with the supporting member 410 . The movable part 442 is movable to a first position and a second position. When the movable part 442 is in the first position, it fits together with the inclined surface 415 in the supporting member 410, and thus closes the suction port 413; when in the second position, the movable part 442 is separated from the inclined surface 415 in the supporting member 410, and thus opens Dust suction port 413 .

Preferably, the one-way valve 440 is a V-shaped sheet structure made of plastic, metal sheet or any other elastic material. So that the movable part 442 can rotate from the second position to and maintain at the first position under the action of the self-resilience of the one-way valve 440 and thus close the suction port 413 . Further preferably, the rebound force is smaller than the negative pressure applied to the movable part 442 when the dust suction fan is working, so that when the dust suction fan is working, the pressure difference between the inside and outside of the movable part 442 can open the movable part 442, and thus open the dust suction. Mouth 413.

Further, those skilled in the art can also understand that with the use of the push rod vacuum cleaner, more and more dust will be attached to the filter screen 430, causing some of the filter holes on the filter screen 430 to be blocked, thereby causing the filter screen 430 to be blocked. The net 430 will hinder the flow of air, thereby reducing the flow velocity of the air, and then the pressure difference between the upper and lower sides of the movable part 442 becomes smaller, so that the movable part 442 cannot be attached to the filter net 430 under the effect of the pressure difference, making the movable part 442 A gap capable of accommodating foreign matter is formed between the portion 442 and the filter 430 . That is to say, the movable part 442 of the one-way valve 440 can be attached to the filter 430 when the filter 430 is relatively clean, but cannot be attached to the filter 430 when the filter 430 is dirty.

Specifically, the angle between the movable part 442 and the fixed part 441 at the first position is less than 90°, preferably, the angle is less than 60°, so that the top of the movable part 442 can be positioned at any position. Carry part of foreign matter (such as dust), so that when the vacuum motor stops working, the gravity of this part of foreign matter can provide vertical downward pressure to the movable part 442, forcing the movable part 442 to rotate from the second position to the first position, closing Dust suction port 413 .

Further, the base is provided with an engaging device for installing the cleaning component, and the outer surface of the base or the host is provided with a trigger part for driving the trigger engaging device to release the cleaning component. Preferably, the trigger part is arranged on the outer surface of the base.

Specifically, during the movement of the base towards the cleaning component, the cleaning component will first abut against the engaging device, and then as the base continues to move, the engaging device will switch from the locked position to the unlocked position and then automatically recover and Hold in the locked position to install the cleaning assembly to the base.

By arranging the engaging device on the base, the user can lift the base together by lifting the operating rod, and then move the base above the cleaning component placed on the ground, then drop the base onto the cleaning component, and Thus causing the snap means to lock the cleaning assembly to the base. Therefore, the cleaning device of the present disclosure can install the cleaning component on the component without the user touching the cleaning component, avoiding the situation that the user's hands are dirty with the dirty cleaning component. In addition, by configuring the base to be in a downward posture when the cleaning device is lifted, the front end of the base is located at the lowest end of the base, so that the front end of the base comes into contact with the cleaning component first. Moreover, based on the eccentric setting of the axis of the aforementioned dust-absorbing motor and the axis of the operating lever, and the operating lever is arranged on the front side of the dust-absorbing fan, so that the front surface of the main machine is as close as possible to the front surface of the operating lever, further Improve the user to get a better view when looking down from the handle, and feel whether the base and the cleaning component are aligned and whether they can be matched together through the hands holding the operating lever, avoiding that when the base and the cleaning component are not aligned, they cannot be detected. Situation in place.

Specifically, as shown in FIGS. 2 , 6 and 7 , the engaging device 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 claw 381 and the second claw 382 can fix the cleaning assembly 400 on the base 300 by engaging. The first claw 381 is pivotally connected to the lower bottom case 320, and a first reset member (not shown in the figure) is arranged between the first claw 381 and the lower bottom case 320. The first reset member is used to make the first The pawl 381 rotates from the unlocked position to and remains in the locked position. The second claw 382 is pivotally connected to the lower bottom case 320, and a second reset member (not shown in the figure) is arranged between the second claw 382 and the lower bottom case 320, and the second reset member is used to make the second The pawl 382 pivots from the unlocked position to and remains in the locked position. When in the locked position, the first claw 381 and the second claw 382 respectively hook the peripheral edge of the cleaning assembly 400 , specifically the peripheral edge of the supporting member 410 of the cleaning assembly 400 . Wherein, both the first reset member and the second reset member are torsion springs. Alternatively, those skilled in the art may also configure the first reset member and/or the second reset member as any other feasible elastic member such as a tension spring or a compression spring as required.

In order to facilitate the user to disassemble the cleaning assembly 400 from the base 300 , the first claw 381 is provided with a trigger portion 381 a , and the trigger portion 381 a is exposed on the upper surface of the base 300 . When the trigger part 381a is pressed, the first claw 381 moves from the locked position to the unlocked position, so that the left end of the cleaning assembly 400 falls under the action of its own gravity, and then the right end of the cleaning assembly 400 is aligned with the second claw. 382 to disengage, thereby allowing the cleaning assembly 400 to disengage from the base 300 .

In the process of installing the cleaning assembly 400 and the base 300 together: the cleaning assembly 400 is first placed on the ground (as shown in Figure 10a), then the cleaning equipment is lifted and the base 300 is aligned with the cleaning assembly 400, The base 300 gradually approaches the cleaning assembly 400 (as shown by the arrow in FIG. 10 a ). As the base 300 approaches the cleaning assembly 400 gradually, the stop structure 321 first contacts the cleaning assembly 400 (as shown in FIG. to guide the installation. Subsequently, the supporting member 410 of the cleaning assembly 400 will abut against the first claw 381 and the second claw 382, and then firstly make the first claw 381 and the second claw 382 rotate from the locked position to the unlocked position, and then The first claw 331 and the second claw 332 are automatically restored and kept in the locking position under the action of their respective reset members, and thus the cleaning assembly 400 is locked to the base 300 (as shown in FIG. 10c ).

Further, the extension part 411 of the support member 410 is provided with a groove 411a with an opening facing upward, and the projection of the front end of the bottom case on the support member 410 falls into the groove 411a, and the bottom case The front end is provided with a limiting portion 321 extending toward the supporting member, and the limiting portion 321 is inserted into the groove. Preferably, there are two flow guiding structures 321 , and they are respectively located on the left and right sides of the lower bottom case 320 .

In this embodiment, by providing a groove on the extension part, a limit part is provided on the bottom case, and the limit part protrudes into the groove, so that when the extension part touches the obstacle in the concave-convex area, there will be a flipping effect. The turning axis moves forward to the matching position between the limiting part and the groove, and the turning axis is more fixed and reliable. In particular, increase the turning arm of the cleaning component when it is turned over, and reduce the force that can cause it to turn over when the turning moment is constant, so as to promote the active turning of the cleaning component in the uneven area, and improve the smooth movement of the cleaning component in the uneven area sex.

Further, the bottom end of the host 100 is hinged to the middle or rear of the base 300 , and the host 100 is provided with a spray port 101 for spraying liquid to the surface to be cleaned in front of the host 100 .

In this embodiment, the bottom end of the host is hinged to the middle or rear of the base, and the host is provided with a spray port for spraying liquid to the surface to be cleaned in front of the host, since the spout is located above the base and behind In the process of water spraying, a small amount of water will fall to the base, and then flow to the ground along the top wall and side wall of the base. In addition, although the water flowing from the base to the ground during the mopping process can be mopped clean, but when the mopping equipment is placed in a corner, etc., the water on the base will still flow to the ground, but cannot be cleaned. Mopping up in time will cause the ground to be slippery, which will not only cause secondary pollution to the ground, but also easily cause family members to slip and fall. By providing the groove on the extension part, the liquid from the base and guided by the guide structure can be received. Preferably, the exposed parts of the upper surface of the front part of the bottom case are all set as arc-shaped surfaces. Since the base is provided with a limiting portion protruding into the groove, the limiting portion can better guide the liquid to the groove. Optionally, slopes are provided at the left and right ends of the groove in the left and right directions, and the slopes are used to guide the stopper to be inserted into the groove.

Further, when the cleaning device is lifted vertically, the base 300 can assume a downward posture (as shown in FIGS. 10 a 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 assume a downward posture when the main body is lifted vertically, the residual water on the upper surface of the base can drip into the groove along the surface of the bottom case when the base is lifted. In addition, since the dust suction port is located on the front side of the cleaning component, when the cleaning component is disassembled, the problem of rising dust will inevitably occur. Since the base is in a downward position, the raised dust can be better shielded.

Further, the axis of the dust collection motor is set eccentrically with the axis of the operation rod 200, and the operation rod 200 is arranged on the front side of the dust suction fan, so that the front surface of the main machine 100 is as close as possible to the front surface of the operation rod 200, so that The user can get a better view when looking forward from the handle 220 . At the same time, it also makes the center of gravity of the whole host 100 more rearward, increases the gravity exerted by the handle 220 on the user, and optimizes the gripping feeling of the user.

Further, as shown in FIG. 8 , the base includes a concavely formed wind gathering chamber 340 , the wind gathering chamber 340 is arranged on the front side of the base, and the air inlet 330 is arranged at the bottom of the wind gathering chamber 340 , The side of the air collecting chamber 340 is provided with an air collecting port 350 communicating with the dust collection motor. Preferably, the inside of the air inlet is provided with a stepped portion adjacent to the air inlet.

Under the action of negative pressure, the filter screen will deform toward the top of the air gathering chamber, especially after a long period of use, the filter screen will also deform to further increase its deformation towards the top of the air gathering chamber during operation , and its deformation will be more significant in its middle region. In addition, the protruding deformation of the filter screen towards the direction of the air gathering chamber can also drive the overall floating of the cleaning component, and expand the area of the filter screen at the air inlet by tightening the filter screen, reducing the risk of the filter screen being partially blocked. If the distance between this area and the air gathering port is very close, the filtered dust in this area will block the air intake, thereby reducing the negative pressure and seriously affecting the dust collection effect. In this embodiment, by setting the hurricane outlet on the side of the air gathering chamber, the air gathering outlet is relatively far away from the area where the filter screen deforms greatly and is close to the edge of the filter screen, reducing the influence of the filter screen deformation on the air flow and ensuring the dust collection effect . In addition, a stepped portion adjacent to the air inlet is provided inside the air inlet to reduce deformation of the periphery of the filter.

Further, the air inlet is provided with a sealing ring 360, and the negative pressure during the operation of the vacuum device makes the air outlet press against the sealing ring 360; the lower housing 320 is provided with a transparent part 322, and the transparent part At least a part of the air collecting cavity 340 is formed. Preferably, the transparent part 322 is integrally formed with the lower bottom case 320, at least the state of the cleaning assembly can be observed through the transparent part.

Further, as shown in FIG. 8 , an installation cavity is provided on the base 300 (specifically, the lower bottom shell 320 ), and the installation cavity can accommodate a part of the top of the cleaning assembly 400 .

As shown in FIG. 1 , in a preferred embodiment of the present disclosure, the push-rod cleaning device is also equipped with a charging device 500 , which is used to charge the storage battery of the push-rod cleaning device.

In the present invention, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "plurality" means two or more, unless otherwise specified limit. The terms "installation", "connection", "connection", "fixed" and other terms should be interpreted in a broad sense, for example, "connection" can be fixed connection, detachable connection, or integral connection; "connection" can be directly or indirectly through an intermediary. The orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or unit must Has a specific orientation, is constructed and operates in a specific orientation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Claims (10)

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.