CN220327389U

CN220327389U - Cleaning device, dust box assembly and box cover

Info

Publication number: CN220327389U
Application number: CN202321515307.6U
Authority: CN
Inventors: 方杰; 蒋月红; 赵来虎
Original assignee: Ecovacs Robotics Suzhou Co Ltd
Current assignee: Ecovacs Robotics Suzhou Co Ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-01-12
Anticipated expiration: 2033-06-14

Abstract

The application discloses cleaning equipment, a dust box assembly and a box cover, wherein the cleaning equipment at least comprises a machine body and the dust box assembly connected with the machine body, and the dust box assembly is provided with a dust inlet, a negative pressure port and a containing cavity; the dust inlet and the negative pressure port are respectively positioned on two opposite side walls of the dust box assembly, the dust inlet is communicated with the accommodating cavity, and the negative pressure port is close to the top of the dust box assembly; the accommodating cavity is internally provided with a cover part, the cover part is connected with the side wall of the dust box assembly, the opening end of the cover part surrounds the negative pressure port, the cover part is provided with a first notch, the negative pressure port is communicated with the accommodating cavity through the first notch, and the opening of the first notch faces the bottom of the accommodating cavity. According to the technical scheme, the probability that dirt passes through the negative pressure port can be reduced, so that the replacement frequency of the filter element by a user is reduced.

Description

Cleaning device, dust box assembly and box cover

Technical Field

The application relates to the field of cleaning technology, in particular to cleaning equipment, a dust box assembly and a box cover.

Background

With the improvement of the living standard of people, more and more families start to reduce the labor intensity and improve the living quality by means of various cleaning devices, such as a sweeping robot, a window cleaning robot and the like.

Taking the sweeping robot as an example, the negative pressure device of the sweeping robot sucks air in the accommodating cavity through the negative pressure port on the box cover so as to form negative pressure in the accommodating cavity, and therefore dirt on the ground is sucked into the accommodating cavity through the dust inlet.

However, when the negative pressure device of the existing floor sweeping robot sucks air in the accommodating cavity, most dirt is carried by air flow formed by the air and passes through the negative pressure port together, and the air flow collides with and stays on the filter piece positioned at the downstream of the negative pressure port, so that the damage of the filter piece is accelerated, the service cycle of the filter piece is shortened, the replacement frequency of a user on the filter piece is increased, and the use experience of the user is influenced.

Disclosure of Invention

An object of the present application is to provide a cleaning device, a dust box assembly and a box cover, which can reduce the probability of dirt passing through a negative pressure port.

To achieve the above object, in one aspect, the present application provides a cleaning apparatus, which at least includes a machine body and a dust box assembly connected to the machine body, wherein the dust box assembly has a dust inlet, a negative pressure port and a receiving cavity; the dust inlet and the negative pressure port are respectively positioned on two opposite side walls of the dust box assembly, the dust inlet is communicated with the accommodating cavity, and the negative pressure port is close to the top of the dust box assembly; the accommodating cavity is internally provided with a cover part, the cover part is connected with the side wall of the dust box assembly, the opening end of the cover part surrounds the negative pressure port, a first notch is formed in the cover part, the negative pressure port is communicated with the accommodating cavity through the first notch, and the opening of the first notch faces the bottom of the accommodating cavity.

In order to achieve the above object, another aspect of the present application further provides a dust box assembly, which has a dust inlet, a negative pressure port and a receiving cavity; the dust inlet and the negative pressure port are respectively positioned on two opposite side walls of the dust box assembly, the dust inlet is communicated with the accommodating cavity, and the negative pressure port is close to the top of the dust box assembly; the accommodating cavity is internally provided with a cover part, the cover part is connected with the side wall of the dust box assembly, the opening end of the cover part surrounds the negative pressure port, a first notch is formed in the cover part, the negative pressure port is communicated with the accommodating cavity through the first notch, and the opening of the first notch faces the bottom of the accommodating cavity.

In order to achieve the above object, another aspect of the present application provides a box cover, which is applied to a dust box assembly. The box cover comprises a body part and a cover part; the body part is provided with a first surface and a second surface which are arranged back to back, and a negative pressure port penetrating through the first surface and the second surface; the cover part is connected with the first surface, the opening end of the cover part surrounds the negative pressure port, a first notch is formed in the cover part and communicated with the negative pressure port, and the opening of the first notch faces to the bottom of the body part.

Therefore, the technical scheme that this application provided sets up the cover portion in the holding intracavity of dirt box subassembly, and the opening end of cover portion encircles the negative pressure mouth, has seted up first breach on the cover portion for the negative pressure mouth passes through first breach and holding chamber intercommunication, and the opening of first breach is towards the bottom of holding chamber. When the cleaning equipment is used for dust collection and cleaning, external air can sequentially pass through the dust inlet, the accommodating cavity, the first notch and the negative pressure port to form a dust collection air path. Compare in current mode through the straight negative pressure mouth that flows of air of dirt inlet entering holding intracavity, the air current that flows along the dust absorption gas circuit in this application flows to the negative pressure mouth after upwards bending in first breach department, change the air current route of current dust absorption gas circuit, like this, when carrying dirty air current along the air current route flow of this dust absorption gas circuit, can increase the dirty in this air current and be provided with the collision probability of dirt box subassembly lateral wall of negative pressure mouth, thereby through the dirt box subassembly lateral wall that is provided with the negative pressure mouth forcing in the air current to stay here and subside, thereby further reduce the dirty probability of passing the negative pressure mouth, the life of filter that is located the negative pressure mouth low reaches is prolonged.

Further, compare in current mode that can only be used for blocking the grid net of great dirt and install in the negative pressure mouth, can install the grid net on first breach in this application structure, correspond, then need not to install the grid net on the negative pressure mouth, the air inlet area of negative pressure mouth also increases thereupon. So, under the condition of meeting the air inlet demand of the air inlet of the negative pressure device, the small negative pressure port can be further formed, the negative pressure port is close to the top of the dust box assembly, the area of the side wall of the dust box assembly, which is provided with the negative pressure port, on the airflow path is correspondingly increased, more dirt can stay and settle in the accommodating cavity, and the probability that the dirt passes through the negative pressure port is further reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a prior art half-section structure of a box body and a box cover after being connected;

FIG. 2 is a schematic view of a cleaning apparatus according to one embodiment of the present application;

FIG. 3 is a schematic perspective view of the structure of the case and the case cover after connection according to one embodiment of the present application;

FIG. 4 is a schematic view of a semi-sectional structure of a case body and a case cover after being connected according to an embodiment of the present application;

FIG. 5 is a schematic view of the structure of the lid according to one embodiment of the present application;

FIG. 6 is a schematic view of a semi-sectional structure of a case body and a case cover after connection according to one embodiment of the present application;

FIG. 7 is a schematic view of a semi-sectional structure of another embodiment of the present application after the other case and lid are connected;

fig. 8 is a schematic view of a semi-sectional structure of a further embodiment of the present application after the coupling of the case body and the case cover.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings. Terms such as "upper," "lower," "first end," "second end," "one end," "the other end," and the like as used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted," "disposed," "provided," "connected," "slidingly connected," "secured," and "sleeved" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

With the improvement of the living standard of people, more and more families start to reduce the labor intensity and improve the living quality by means of various cleaning devices, such as a sweeping robot, a window cleaning robot and the like. Taking the sweeping robot as an example, the negative pressure device of the sweeping robot sucks air in the accommodating cavity 23 through the negative pressure port 22 on the box cover 25 to form negative pressure in the accommodating cavity 23, so that dirt on the ground is sucked into the accommodating cavity 23 through the dust inlet 21. And, the negative pressure port 22 is also provided with a grid net 60 to block larger dirt from passing through the negative pressure port 22.

However, as shown in fig. 1, since the existing negative pressure port 22 provided on the cap 25 and the portion for blocking the dirt (the portion of the cap 25 from which the negative pressure port 22 is removed) are located on the same vertical plane, and the grill net 60 located at the negative pressure port 22 also blocks part of the ventilation area, in order to ensure that the negative pressure port 22 has a sufficient air outlet amount, the ventilation area of the negative pressure port 22 should be sufficiently large, but this also directly results in a smaller area for blocking the dirt portion, so that when the negative pressure device sucks the air in the accommodating chamber 23, the air flow formed by the air will carry the dirt together, wherein only a small portion of the dirt will be blocked by the portion for blocking the dirt, and most of the dirt will flow together to the negative pressure port 22 (as indicated by the arrow direction in fig. 1), while the larger dirt will be blocked by the grill net 60, but most of the smaller dirt will pass through the negative pressure port 22 and impinge on the filter 50 located downstream of the negative pressure port 22, thereby accelerating the damage of the filter 50, and reducing the service life of the filter 50. Meanwhile, as the service life of the filter 50 is reduced, the frequency of replacing the filter 50 by a user is increased, and the use experience of the user is affected.

In case of increasing the area for blocking the dirt by sacrificing the ventilation area of the vacuum port 22, although it is possible to achieve the object of reducing the probability of dirt passing through the vacuum port 22, it is apparent that this also additionally results in a reduction in the amount of air discharged through the vacuum port 22, i.e., in a reduction in the amount of air sucked by the vacuum device, thereby affecting the negative pressure generating effect of the vacuum device on the accommodating chamber 23, i.e., reducing the dirt sucking capability of the cleaning apparatus.

Secondly, since the dirt sucked into the accommodating cavity 23 is mostly accumulated between the dust inlet 21 and the negative pressure port 22, and the distance between the existing negative pressure port 22 and the dust inlet 21 is small, the dirt (especially, floccules such as some hair) is accumulated continuously, so that the dust inlet 21 is blocked, and the sucking effect of the dirt on the ground through the dust inlet 21 is affected.

Again, the existing sweeping robot is usually equipped with a base station to be used together, so as to realize the self-cleaning function of the sweeping robot, thereby greatly reducing the period of cleaning the sweeping robot by a user, but being limited by the fan power of the base station, the flow loss of a dust collection air duct, insufficient flow and flow speed in the dust collection process, unreasonable dust distribution in the accommodating cavity 23 and other problems, the automatic dust collection efficiency is low, and the dirt residue exists in the accommodating cavity 23.

Therefore, how to improve the structure of the cleaning device and further reduce the probability of dirt passing through the negative pressure port without reducing the dirt sucking performance of the cleaning device is a problem to be solved in the art.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the embodiments described herein are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which are within the scope of the protection of the present application, will be within the skill of the art without undue effort.

Referring also to fig. 2-4, in one embodiment, a cleaning apparatus may include at least a housing 10 and a dust box assembly 20 coupled to the housing 10. In this embodiment, the body 10 serves as a base carrier for the cleaning apparatus and serves to support and protect other components of the cleaning apparatus. The dust box assembly 20 is used to draw and store dirt on the surface to be cleaned as the machine body 10 moves. It should be noted that the cleaning device may be a cleaning robot or the like having cleaning functions of washing, sweeping, mopping, or the like, and the cleaning device may be automatically moved over the surface to be cleaned to perform cleaning work on the surface to be cleaned. Of course, the cleaning device may be a hand-held floor cleaning machine with cleaning functions such as floor cleaning, sweeping, mopping, etc., and the user may push the cleaning device to move on the surface to be cleaned by holding the cleaning device, so as to perform cleaning on the surface to be cleaned, which is not limited herein.

In this embodiment, the dust box assembly 20 has a dust inlet 21, a negative pressure port 22, and a receiving chamber 23. Wherein, the dust inlet 21 and the negative pressure inlet 22 are respectively positioned on two opposite side walls of the dust box assembly 20, and the dust inlet 21 and the negative pressure inlet 22 are communicated with the accommodating cavity 23. In practical applications, the cleaning apparatus generally further includes a negative pressure device 30, where the negative pressure device 30 is configured to communicate with the negative pressure port 22, and when the cleaning apparatus is in operation, the negative pressure device 30 may draw air in the accommodating cavity 23 through the negative pressure port 22 to form a negative pressure in the accommodating cavity 23, so that dirt enters the accommodating cavity 23 through the dust inlet 21 under the action of the negative pressure.

It should be noted that the negative pressure device 30 may be a mechanical device of a vacuum pump, a negative pressure fan or the like, and the negative pressure device 30 may be mounted on the machine body 10 as a part of the cleaning apparatus, or may be communicated with the negative pressure port 22 only through a pipe, and be formed as an integral part with the cleaning apparatus.

In the present embodiment, a cover portion 40 is provided in the accommodation chamber 23, the cover portion 40 is connected to the side wall of the dust box assembly 20, the cover portion 40 is configured in a cover-shaped structure having an open end, and the open end of the cover portion 40 surrounds the negative pressure port 22, so that the negative pressure port 22 is covered by the cover portion 40, so that the negative pressure port 22 communicates with the accommodation chamber 23 through the cover portion 40. Specifically, the cover portion 40 is provided with a first notch 41, the negative pressure port 22 is communicated with the accommodating cavity 23 through the first notch 41, and the first notch 41 is opened towards the bottom of the accommodating cavity 23. Thus, when the cleaning device is cleaned by dust collection, the external air can sequentially pass through the dust inlet 21, the accommodating cavity 23, the first notch 41 and the negative pressure port 22 to form a dust collection air path a (see the direction of a dotted arrow in fig. 4 in detail). Compared with the prior art that the air entering the accommodating cavity 23 through the dust inlet 21 directly flows to the negative pressure port 22, the air flowing along the dust collection air path in the present application flows into the negative pressure port 22 after being bent upwards at the first notch 41, and the air flow path of the prior dust collection air path is changed, so that when the air flow carrying dirt flows along the air flow path of the dust collection air path, the collision probability of the dirt in the air flow and the side wall of the dust box assembly 20 provided with the negative pressure port 22 can be increased, and the dirt in the air flow is forced to stay at the position through the side wall of the dust box assembly 20 provided with the negative pressure port 22, thereby reducing the probability that the dirt passes through the negative pressure port 22 and prolonging the service life of the filter 50 positioned at the downstream of the negative pressure port 22.

Further, the negative pressure port 22 may be located near the top of the dust box assembly 20, and the first notch 41 may be covered with a grid 60 to block greater dirt from the grid 60. It should be noted that, compared with the existing mode that only the grid net 60 for blocking larger dirt can be installed on the negative pressure port 22, the grid net 60 can be installed on the first notch 41 in the above structure, correspondingly, the grid net 60 is not required to be installed on the negative pressure port 22, and the ventilation area of the negative pressure port 22 is also increased accordingly, so that the small negative pressure port 22 can be made as much as possible under the condition of meeting the air intake requirement of the air inlet of the negative pressure device 30, and the area of the side wall of the dust box assembly 20 provided with the negative pressure port 22 on the air flow path is correspondingly increased due to the arrangement of the negative pressure port 22 close to the top of the dust box assembly 20, so that more dirt can stay and settle in the accommodating cavity 23, and the probability that the dirt passes through the negative pressure port 22 is further reduced.

Meanwhile, the first notch 41 is opened towards the bottom of the accommodating cavity 23, that is, the opening of the first notch 41 is downward, so that when the cleaning device stops working, dirt originally adsorbed at the first notch 41 under the action of negative pressure falls from the first notch 41 under the action of self gravity, and the possibility of blocking at the first notch 41 is reduced.

In practical applications, in order to improve the cleaning effect of the cleaning device, the cleaning device generally further includes a cleaning assembly 70, where the cleaning assembly 70 is connected to the machine body 10, and the cleaning assembly 70 is used for cleaning a surface to be cleaned along with the movement of the machine body 10. Wherein the dust inlet 21 may also be used in conjunction with the cleaning assembly 70. Specifically, the opening of the dust inlet 21 may face the cleaning component 70, so that the dust inlet 21 may suck dirt on the surface to be cleaned and clean the dirt on the cleaning component 70, thereby ensuring the cleanliness of the cleaning component 70. Further, in the moving direction of the cleaning apparatus, the cleaning assembly 70 is located in front of the dust inlet 21, so that when the cleaning assembly 70 cleans a surface to be cleaned, the cleaning assembly 70 can push dirt to the dust inlet 21, thereby facilitating the dust inlet 21 to clean dirt on the surface to be cleaned.

Alternatively, the cleaning assembly 70 may be one of a brush plate assembly, a roller brush assembly, and a circulating wipe assembly.

In one implementation manner, the cover portion 40 may further be provided with a second notch 42, and the second notch 42 may also be covered with a grid mesh 60, where the second notch 42 is respectively communicated with the accommodating cavity 23 and the negative pressure port 22, and the second notch 42 and the first notch 41 are not coplanar. In this way, the air flow entering the accommodating cavity 23 through the dust inlet 21 can enter the negative pressure opening 22 through the first notch 41 and the second notch 42 respectively, so that the ventilation area is increased, and the negative pressure generating effect of the negative pressure device 30 on the accommodating cavity 23 is ensured. Meanwhile, since the second notch 42 is additionally provided, and the second notch 42 and the first notch 41 are located on different planes, compared with the case that only the first notch 41 is provided, the transverse length of the small cover portion 40 can be properly made under the condition of ensuring enough ventilation area in this embodiment, so that the distance between the first notch 41 and the second notch 42 and the dust inlet 21 is increased, the accommodating cavity 23 has enough depth to accommodate longer dirt, and the accumulation of dirt can be avoided as much as possible.

It should be noted that the sum of the actual ventilation areas of the first notch 41 and the second notch 42 should be greater than or equal to the ventilation area of the negative pressure port 22, and the ventilation area of the negative pressure port 22 should be greater than or equal to the ventilation area of the air intake of the negative pressure device 30 to ensure the negative pressure generating effect of the negative pressure device 30. The actual ventilation areas of the first notch 41 and the second notch 42 refer to the areas of the first notch 41 and the second notch 42 excluding the area covered by the grid 60.

In the present embodiment, the opening of the second notch 42 may be provided toward the dust inlet 21, or may be provided on the top or both sides of the cover 40. However, considering the dirt sucking effect of the dust box assembly 20, the second notch 42 is preferably opened towards the dust inlet 21, so that the air entering through the dust inlet 21 can directly flow to the second notch 42, the resistance of the inner wall of the dust box assembly 20 to the air is reduced, the airflow velocity is ensured, and the dirt sucking effect is improved.

The dust box assembly 20 can be integrally designed in the modes of injection molding, forging, 3D printing and the like. The dust box assembly 20 may also be of a split design for facilitating subsequent repair and replacement of the dust box assembly 20, and in particular, in one embodiment, the dust box assembly 20 may include a box body 24 and a box cover 25. The case 24 is connected to the machine body 10, the case 24 has an opening 241, the cover 25 is connected to the case 24 and covers the opening 241, and the case 24 and the cover 25 enclose the accommodating chamber 23. The dust inlet 21 is formed in the case 24, and the dust inlet 21 is disposed opposite to the opening 241. The lid 25 includes a body portion 251, the body portion 251 having oppositely disposed first and second faces 2511, 2512, the first face 2511 being located between the second face 2512 and the receiving chamber 23. The negative pressure port 22 is provided in the main body 251, penetrates the first surface 2511 and the second surface 2512, and connects the cover 40 to the first surface 2511.

In practical applications, the case 24 and the case cover 25 may be detachably connected by means of a clamping connection, a threaded connection, a fastening connection, or the like, and the case 24 and the case cover 25 are generally used together, and when in use, a user generally assembles the case 24 and the case cover 25 to form the dust box assembly 20, and then integrally installs the dust box assembly 20 in an installation position on the machine body 10, or integrally detaches from the installation position of the machine body 10. The body portion 251 and the cover portion 40 may together form the above-mentioned box cover 25, and the body portion 251 and the cover portion 40 may be integrally formed by injection molding, forging, stamping, 3D printing, or the like, or may be formed by separately producing and then connecting them by using a process such as heat induction, welding, and bonding.

With respect to the specific structure of the cover 40 described above, in one possible embodiment, the cover 40 may include a first portion 43 and a second portion 44, where the first portion 43 is spaced from the first face 2511, and the second portion 44 is an annular structure extending from the periphery of the first portion 43 along the axis of the negative pressure port 22 to the periphery of the negative pressure port 22. Specifically, the first notch 41 is formed in the second portion 44, and the second notch 42 is formed in the first portion 43. In practical applications, the first portion 43, the second portion 44, the first notch 41 and the second notch 42 may be integrally formed by injection molding.

In the present embodiment, the shape of the first portion 43 and the shape of the negative pressure port 22 should be identical, so that the inner side surface of the second portion 44 formed to extend from the periphery of the first portion 43 to the periphery of the negative pressure port 22 can be made smoother, and the resistance of the inner side of the second portion 44 to the suction airflow can be reduced. In practical applications, the shapes of the first portion 43 and the negative pressure port 22 may be circular, elliptical, rectangular, etc., which are not particularly limited in this application. Further, the size of the first portion 43 should be no greater than the size of the negative pressure port 22 to avoid an angle between the outer side of the second portion 44 and the body portion 251 to cause dirt to accumulate at the angle.

With respect to the specific structure of the body portion 251 described above, in one achievable embodiment, the body portion 251 may include a third portion 2513 and a fourth portion 2514. Wherein the third portion 2513 is disposed substantially vertically within the receiving chamber 23, the third portion 2513 is configured to block dirt entering the receiving chamber 23, thereby forcing the dirt to stay and settle within the receiving chamber 23. Correspondingly, the negative pressure port 22 is formed in the third portion 2513, and the cover 40 is connected to the third portion 2513. The fourth portion 2514 is a ring-shaped structure extending from the periphery of the third portion 2513 in a direction away from the cover 40, and the fourth portion 2514 is used to connect the third portion 2513 with the case 24 to effect connection of the lid 25 with the case 24. It should be noted that the substantially vertical arrangement of the third portion 2513 as defined herein refers to a condition in which the angle between the third portion 2513 and the cleaning surface is at or near a right angle when the cleaning device is cleaning a substantially horizontal surface to be cleaned.

Meanwhile, with the above-described arrangement of the third portion 2513 and the fourth portion 2514, the third portion 2513 and the fourth portion 2514 are further formed around the mounting chamber 252, and the mounting chamber 252 communicates with the negative pressure port 22 and is located downstream of the negative pressure port 22. The filter 50 can be installed in the installation cavity 252 to filter the air passing through the negative pressure port 22, so as to ensure the cleanliness of the air entering the negative pressure device 30. In practice, the filter element 50 should be removably attached within the mounting cavity 252 to facilitate subsequent removal and replacement. The filter element 50 should also cover the suction opening 22 to avoid that air flowing out of the suction opening 22 flows to the suction device 30 without being filtered by the filter element 50.

Alternatively, the filter 50 is one of a sponge, a HEPA and a smaller mesh filter.

Further, a predetermined angle β is formed between the plane of the first notch 41 and the third portion 2513, and the predetermined angle β is between 80 ° and 120 °. It can be appreciated that if the preset angle β is too small, a small angle area is formed between the plane where the first notch 41 is located and the third portion 2513, which results in an increase in resistance of the third portion 2513 to the air sucked by the first notch 41, affecting the suction effect and being prone to dirt blocking. If the predetermined angle β is too large, the effect of the first notch 41 to increase the probability of collision of dirt in the airflow with the third portion 2513 is also reduced by changing the airflow path.

Preferably, the predetermined angle β is 90 °. Through the arrangement, the problems of dirt blocking and air resistance increase can be reasonably avoided, and meanwhile, the collision probability of dirt and the third part 2513 is increased, so that part of dirt is forced to stay at the third part 2513 and settle.

In one possible embodiment, as shown in fig. 6, the hood 40 should be positioned as close as possible above the body 251 to reduce the likelihood of dirt entering the negative pressure port 22. Specifically, a first distance A is provided between the bottom of the second portion 44 and the top of the third portion 2513. A second distance B is provided between the bottom of the third portion 2513 and the top of the third portion 2513, wherein the ratio of the first distance A to the second distance B is less than or equal to 0.5, i.e. A/B is less than or equal to 0.5. It will be appreciated that the portion of the third portion 2513 located in the second portion 44 is mainly used for blocking dirt so as to force the dirt to stay and settle, so that the above-mentioned value arrangement can make the portion of the third portion 2513 located in the second portion 44 be large enough to ensure the blocking effect on the dirt, and at the same time, can ensure that the first notch 41 and the second notch 42 have sufficient heights with the bottom of the accommodating cavity 23, so as to reduce the possibility of the dirt entering the negative pressure port 22.

Meanwhile, A/B is more than or equal to 0.2 so as to ensure that the first part 43 has enough length in the vertical direction, thereby ensuring that the second notch 42 on the first part 43 has enough ventilation area and avoiding that the too small ventilation area influences the negative pressure generating effect of the negative pressure device 30 on the accommodating cavity 23.

In one possible embodiment, as shown in fig. 7, the first portion 43 and the dust inlet 21 have a third distance C, where the third distance C should be greater than or equal to 40mm, that is, C is greater than or equal to 40mm, so as to ensure that there is a sufficient distance between the hood 40 and the dust inlet 21, and avoid that dirt is concentrated and accumulated due to too short a distance between the hood 40 and the dust inlet 21, so that the dust inlet 21 is blocked to affect the dirt sucking effect.

Meanwhile, a fourth distance D is arranged between the third portion 2513 and the dust inlet 21, and the product of the fourth distance D and 0.9 is larger than or equal to a third distance C, namely 0.9D is larger than or equal to C, so that the second portion 44 is ensured to have enough transverse length, the first notch 41 on the second portion 44 is ensured to have enough ventilation area, and the effect of the negative pressure device 30 on negative pressure generation in the accommodating cavity 23 is prevented from being influenced by too small ventilation area.

The cleaning device can also be provided with a base station for use together, so that at least the self-cleaning function of dirt in the cleaning device is realized, that is, dirt in the accommodating cavity 23 is automatically collected and cleaned, and the hands of a user are thoroughly liberated. Specifically, in one implementation, referring to fig. 3 and 8, the box 24 further has a side air port 242 and a dust collecting port 243, the side air port 242 and the dust collecting port 243 are located on two opposite sidewalls of the box 24, and the side air port 242 is communicated with the dust collecting port 243 through the accommodating cavity 23 to form a dust collecting air path. When the cleaning device is located in the base station and the base station performs dust collection and cleaning on the dirt in the accommodating cavity 23, the air inlet of the fan in the base station is communicated with the dust collection port 243 so as to draw air in the accommodating cavity 23 through the dust collection port 243, meanwhile, the side air port 242 is used for air inlet into the accommodating cavity 23, so that air flow from the side air port 242 to the dust collection port 243 is formed, and the air flow can carry the dirt in the accommodating cavity 23 to flow out from the dust collection port 243, so that dust collection and cleaning on the dirt in the accommodating cavity 23 are realized.

In this embodiment, the side air port 242 and the dust collecting port 243 should be provided with door opening and closing components, which can automatically close the side air port 242 and the dust collecting port 243 when the cleaning apparatus cleans by dust absorption, so as to ensure the suction capability of the dust inlet 21 for dirt on the surface to be cleaned. And, the door opening and closing part can also automatically open the side air port 242 and the dust collecting port 243 when the base station collects dust and cleans the cleaning equipment, so that the base station forms air flow through the side air port 242 and the dust collecting port 243, thereby cleaning dirt in the accommodating cavity 23.

In practical application, the door opening and closing component can be a turnover type or lifting type electric control door structure, and the door opening and closing component is controlled to be opened or closed through the received signal. Of course, the door opening and closing member may also be a purely mechanical control structure, for example, the door opening and closing member includes a door plate and a torsion spring, the door plate is hinged with the box 24, and the torsion spring is connected with the door plate and the box 24, respectively, so as to control the opening and closing of the door opening and closing member through the torsion force of the torsion spring. It should be noted that the torsion of the torsion spring of the door opening and closing member at the side air port 242 should be greater than the difference between the internal and external air pressure of the accommodating chamber 23 at the time of dust collection cleaning and less than the difference between the internal and external air pressure of the accommodating chamber 23 at the time of dust collection cleaning. In this way, it is ensured that the door opening and closing member at the side air port 242 is closed at the time of dust collection cleaning of the cleaning apparatus and opened at the time of dust collection cleaning of the cleaning apparatus.

Further, the side walls of the side air port 242 and the dust collecting port 243 are different from the side walls of the dust inlet 21 and the opening 241, so that the airflow direction during dust collection and cleaning is set at a certain angle with the airflow direction during dust collection and cleaning, thereby effectively taking away the dirt in the accommodating cavity 23, and simultaneously reducing the possibility that the dirt enters the dust inlet 21, the first notch 41 and the second notch 42 during dust collection and cleaning.

In one implementation, as shown in fig. 8, a fifth distance E is provided between the side air port 242 and the bottom of the accommodating cavity 23, where the fifth distance E is less than or equal to 10mm, that is, E is less than or equal to 10mm, so that the side air port 242 is as close to the bottom of the accommodating cavity 23 as possible, and the ratio of the length of the side air port 242 to the width of the side air port 242 is greater than or equal to 2, so that the side air port 242 has a sufficient length to extend to two ends of the accommodating cavity 23 in the length direction, and thus, the air flow flowing along the dust collecting air path can effectively accommodate dirt at the bottom of the accommodating cavity 23, and the dust collecting effect on the dirt in the accommodating cavity 23 is improved. Note that the length of the side air port 242 refers to the distance between both ends of the side air port 242 in the direction parallel to the bottom of the accommodating chamber 23.

Meanwhile, the ventilation area of the side air port 242 should be as large as possible so that sufficient air volume is provided to carry away dirt in the accommodating chamber 23 during dust collection and cleaning, thereby achieving the purpose of improving dust collection efficiency. Preferably, the ventilation area of the side tuyere 242 should be greater than or equal to 180mm ² 。

In practical application, when the base station collects dust and cleans the cleaning device, the outside air will enter the accommodating cavity 23 through the negative pressure port 22, so that the vacuum degree in the accommodating cavity 23 is reduced, and the dust collection efficiency of the base station on the cleaning device is affected.

In order to solve the above-mentioned problem, in one possible embodiment, when the cleaning apparatus is in a dust collecting state, the negative pressure device 30 may be activated, and the air at the negative pressure port 22 is extracted by the negative pressure device 30, so that the negative pressure port 22 has a dynamic pressure of the air flow from the cover portion 40 toward the negative pressure port 22, thereby at least partially blocking the external air from entering the accommodating cavity 23 through the negative pressure port 22 by using the dynamic pressure of the air flow, and further improving the dust collecting efficiency of the cleaning apparatus by the base station. It should be noted that, the dust collection state defined in the present application refers to a state in which the cleaning device is in a dust collection state when the cleaning device is cleaned by the base station, and correspondingly, a state in which the cleaning device is in a dust collection state when the cleaning device is cleaning a surface to be cleaned.

In this embodiment, the output power of the negative pressure device 30 in the dust collection state should be smaller than the output power of the negative pressure device 30 in the dust collection state, so as to avoid the excessive suction force of the negative pressure device 30 from changing the flow direction of the dust collection air path, thereby affecting the dust collection effect of the base station on the cleaning device. For example, a first operation mode and a second operation mode may be set in the cleaning apparatus, where the first operation mode corresponds to a first preset output power of the negative pressure device 30, the second operation mode corresponds to a second preset output power of the negative pressure device 30, and the first preset output power is greater than the second preset output power. When the cleaning device is in the dust collection state, the cleaning device is in the first working mode, a controller in the cleaning device controls the negative pressure device 30 to output first preset output power, and the negative pressure device 30 forms negative pressure in the accommodating cavity 23 through the negative pressure port 22 so as to suck dirt on the surface to be cleaned into the accommodating cavity 23 through the dust inlet 21. When the cleaning equipment is in a dust collection state, the cleaning equipment is in a second working mode, a controller in the cleaning equipment controls the negative pressure device 30 to output second preset output power, air at the negative pressure port 22 is extracted by the negative pressure device 30, and external air is prevented from entering the accommodating cavity 23 through the negative pressure port 22, so that the vacuum degree in the accommodating cavity 23 is improved, and the dust collection efficiency of the base station on the cleaning equipment is improved.

Based on the same inventive concept, the present application also provides a dust box assembly 20, the dust box assembly 20 being capable of being independent of the cleaning apparatus. The dust box assembly 20 can be removably assembled with the cleaning apparatus as an integral system. In particular, the dust box assembly 20 may be integrally assembled in the cleaning apparatus or integrally disassembled from the cleaning apparatus. The dust box assembly 20 is provided with a dust inlet 21, a negative pressure port 22 and a containing cavity 23. Wherein, the dust inlet 21 and the negative pressure port 22 are respectively positioned on two opposite side walls of the dust box assembly 20, the dust inlet 21 and the negative pressure port 22 are communicated with the accommodating cavity 23, and the negative pressure port 22 is close to the top of the dust box assembly 20. The accommodating cavity 23 is internally provided with a cover part 40, the cover part 40 is connected with the side wall of the dust box assembly 20, an opening end of the cover part 40 surrounds the negative pressure port 22, a first notch 41 is formed in the cover part 40, the negative pressure port 22 is communicated with the accommodating cavity 23 through the first notch 41, and the first notch 41 is opened towards the bottom of the accommodating cavity 23.

Further, a second notch 42 is further formed on the cover portion 40. The second notch 42 is communicated with the negative pressure port 22 and the accommodating cavity 23, and the second notch 42 is opened towards the dust inlet 21.

For the specific structure of the dust box assembly 20 and the cover 40, reference may be made to the content related to the above embodiment, and details are not repeated here.

Based on the same inventive concept, the present application also provides a cover 25, which cover 25 is applied in the dust box assembly 20. Wherein the cover 25 includes a body portion 251 and a cap portion 40. The body portion 251 has a first face 2511 and a second face 2512 disposed opposite to each other, and the body portion 251 further has a negative pressure port 22 penetrating the first face 2511 and the second face 2512. The cover 40 is connected to the first surface 2511, the opening end of the cover 40 surrounds the negative pressure port 22, the cover 40 is provided with a first notch 41, the first notch 41 communicates with the negative pressure port 22, and the opening of the first notch 41 faces the bottom of the body 251.

For the specific structure of the cover 25, reference may be made to the content related to the above embodiment, and details are not repeated here.

The following describes the cleaning device as an example of a sweeping robot in detail in connection with a specific application scenario.

Application scenario one

The young office worker is busy with work and households every day, and the most headache is the problem of floor cleaning. Each floor cleaning takes a lot of time and effort, and is very tired. In order to reduce the labor intensity, a small Ming decides to purchase a sweeping robot. The use of the robot for sweeping floor does make the life of the robot become relaxed, but he finds that the service life of the handkerchief in the robot is too short, and the handkerchief needs to be replaced every two or three months, which not only increases the life cost, but also affects the use experience of the robot.

To solve this problem, it is becoming clear to find better solutions. He consults with a professional cleaning company and robot manufacturer, and finally knows that he can replace a new dust box assembly to reduce the probability of dirt entering into the handkerchief when cleaning the cleaning robot, thereby prolonging the service life of the handkerchief.

After purchasing the new dust box component, the Ming's finding that the box cover part of the new dust box component is slightly different from the previous one. In order to experience the using effect of the new dust box component, the dust box component in the original sweeping robot is immediately replaced by the new dust box component, and trial cleaning is performed. Along with the movement of the sweeping robot, the negative pressure device sequentially extracts air in the accommodating cavity through the HEPA, the negative pressure port and the transition port so as to form negative pressure in the accommodating cavity, and therefore dirt on the surface to be cleaned is sucked into the accommodating cavity through the dust inlet by utilizing the negative pressure. And the dirt entering the accommodating cavity increases the collision rate of the dirt and the third part under the guiding action of the air flow formed by the first notch, so that most of the dirt is forced to stay at the position by the third part to settle, and the probability of the dirt entering the HEPA is reduced.

After cleaning is completed, the cleaning area of the sweeping robot is observed clearly as clean and tidy as before. Meanwhile, the Xiaoming also disassembles the sea kerchief, discovers that the sea kerchief only has scattered dirt, and estimates that the dirt on the sea kerchief is less than 50% compared with the dirt on the sea kerchief after the previous cleaning, thereby indirectly improving the service life of the sea kerchief. The utility model has the advantages that the utility model is very satisfactory for replacing the novel dust box assembly, and even if the utility model is calculated for one year, the use cost of at least two handkerchiefs can be saved, and the mind is happy.

Application scene two

A cleaning robot is purchased from a small Ming, and is provided with a set of cleaning base stations, and the cleaning base stations not only have the function of charging the cleaning robot, but also have the function of cleaning the rolling brush of the cleaning robot.

After the floor is cleaned by the sweeping robot, the Xiaoming clicks an automatic dust collection button on the mobile phone APP to start an automatic dust collection function of the sweeping robot.

And after the sweeping robot receives an automatic dust collection instruction sent by a user, the sweeping robot returns to the cleaning base station. The cleaning base station is internally provided with a detection sensor, and when the sweeping robot reaches the correct position, the sweeping robot can trigger the detection sensor so as to determine whether the sweeping robot reaches the correct position. After the robot reaches the correct position, the cleaning base station controls the air inlet of the fan to be communicated with the dust collecting port, and starts the fan to extract air in the accommodating cavity through the dust collecting port, so that the air inlet of the air inlet is opened under the pressure inside and outside the accommodating cavity, the air inlet of the air inlet sequentially passes through the accommodating cavity and the dust collecting port to form a dust collecting air path, and dirt in the accommodating cavity flows out of the dust collecting port under the driving of the air flow flowing along the dust collecting air path and is further collected in the cleaning base station.

The Ming dynasty finds that the mobile phone APP has an efficient dust collection mode, and then clicks the efficient dust collection mode. After responding to the high-efficiency dust collection instruction, the sweeping robot starts the negative pressure device, the negative pressure device extracts air at the negative pressure port, and external air is prevented from entering the accommodating cavity through the negative pressure port, so that the vacuum degree in the accommodating cavity is improved, and the dust collection efficiency of the cleaning base station to the sweeping robot is improved.

After a short period of time after the high-efficiency dust collection mode is started, the cleaning base station quickly completes dust collection and cleaning of the sweeping robot.

Therefore, the technical scheme that this application provided sets up the cover portion in the holding intracavity of dirt box subassembly, and the opening end of cover portion encircles the negative pressure mouth, has seted up first breach on the cover portion for the negative pressure mouth passes through first breach and holding chamber intercommunication, and the opening of first breach is towards the bottom of holding chamber. When the cleaning equipment is used for dust collection and cleaning, external air can sequentially pass through the dust inlet, the accommodating cavity, the first notch and the negative pressure port to form a dust collection air path. Compare in current mode through the straight negative pressure mouth that flows of air of dust inlet entering holding intracavity, the air current that flows along the dust absorption gas circuit in this application flows to the negative pressure mouth after upwards bending in first breach department, change the air current route of current dust absorption gas circuit, like this, when carrying dirty air current along the air current route flow of this dust absorption gas circuit, can increase the dirty in this air current and be provided with the collision probability of the dirt box subassembly lateral wall of negative pressure mouth, thereby through setting up the dirt box subassembly lateral wall of negative pressure mouth and forcing the dirty in the air current to stay here and subside, thereby reduce the dirty probability of passing the negative pressure mouth, the life of filter that is located the negative pressure mouth low reaches is prolonged.

The foregoing description of the preferred embodiments of the present application is not intended to limit the invention to the particular embodiments of the present application, but to limit the scope of the invention to the particular embodiments of the present application.

Claims

1. The cleaning equipment is characterized by at least comprising a machine body and a dust box assembly connected with the machine body, wherein the dust box assembly is provided with a dust inlet, a negative pressure port and a containing cavity;

The dust inlet and the negative pressure port are respectively positioned on two opposite side walls of the dust box assembly, the dust inlet is communicated with the accommodating cavity, and the negative pressure port is close to the top of the dust box assembly;

the accommodating cavity is internally provided with a cover part, the cover part is connected with the side wall of the dust box assembly, the opening end of the cover part surrounds the negative pressure port, a first notch is formed in the cover part, the negative pressure port is communicated with the accommodating cavity through the first notch, and the opening of the first notch faces the bottom of the accommodating cavity.

2. The cleaning apparatus of claim 1, wherein the cover portion is further provided with a second notch;

the second notch is communicated with the negative pressure port and the accommodating cavity, and the second notch is not coplanar with the first notch.

3. The cleaning apparatus of claim 2, wherein the dust box assembly comprises a box body and a box cover;

the box body is provided with an opening, the box cover is connected with the box body and covers the opening, the box body and the box cover are enclosed into the accommodating cavity, the dust inlet is formed in the box body, and the dust inlet and the opening are oppositely arranged;

The box cover comprises a body part, the body part is provided with a first surface and a second surface which are arranged back to back, the first surface is positioned between the second surface and the accommodating cavity, the negative pressure port is formed in the body part and penetrates through the first surface and the second surface, and the cover part is connected with the first surface.

4. A cleaning device according to claim 3 wherein the hood comprises a first portion spaced from the first face and a second portion extending from the periphery of the first portion along the axis of the vacuum port to the periphery of the vacuum port;

the first notch is formed in the second portion, and the second notch is formed in the first portion.

5. The cleaning apparatus defined in claim 4, wherein the body portion comprises a third portion and a fourth portion;

the third part is arranged in the accommodating cavity approximately vertically, the negative pressure port is formed in the third part, and the cover part is connected with the third part;

the fourth part extends from the periphery of the third part to the direction away from the cover part and outwards, and is used for connecting the third part with the box body;

The third portion and the fourth portion form a mounting cavity around them for mounting a filter therein.

6. The cleaning apparatus of claim 5, wherein a predetermined angle exists between the plane in which the first gap is located and the third portion, the predetermined angle being between 80 ° and 120 °.

7. The cleaning apparatus of claim 5, wherein a first distance is provided between a bottom of the second portion and a top of the third portion;

a second distance is provided between the bottom of the third portion and the top of the third portion, wherein a ratio of the first distance to the second distance is less than or equal to 0.5 and greater than or equal to 0.2.

8. The cleaning apparatus of claim 5 or 7, wherein a third distance is provided between the first portion and the dust inlet, the third distance being greater than or equal to 40mm;

and a fourth distance is arranged between the third part and the dust inlet, and the product of the fourth distance and 0.9 is larger than or equal to the third distance.

9. The cleaning apparatus of claim 5, wherein the cartridge further has a side air port and a dust collection port;

The side air port and the dust collecting port are positioned on the other two opposite side walls of the box body, and the side air port is communicated with the dust collecting port through the accommodating cavity to form a dust collecting air path.

10. The cleaning apparatus of claim 9, wherein a fifth distance is provided between the side air port and the bottom of the receiving cavity, the fifth distance being less than or equal to 10mm;

the length direction of the side air port is parallel to the bottom of the accommodating cavity, and the ratio of the length of the side air port to the width of the side air port is greater than or equal to 2.

11. The cleaning apparatus of claim 10, wherein the ventilation area of the side air port is greater than or equal to 180mm ² 。

12. The cleaning apparatus of claim 1, further comprising a negative pressure device;

the negative pressure device is connected with the machine body, and an air inlet of the negative pressure device is communicated with the negative pressure port;

when the cleaning equipment is in a dust collection state, the negative pressure device forms negative pressure in the accommodating cavity through the negative pressure port so as to suck dirt into the accommodating cavity through the dust inlet;

when the cleaning device is in a dust collecting state, the negative pressure device extracts air at the negative pressure port so as to at least partially block external air from entering the accommodating cavity through the negative pressure port.

13. The dust box assembly is characterized by comprising a dust inlet, a negative pressure port and a containing cavity;

14. A dust box assembly according to claim 13, wherein the cover portion is further provided with a second notch;

the second notch is communicated with the negative pressure port and the accommodating cavity, and the opening of the second notch faces the dust inlet.

15. A box cover applied to a dust box component, which is characterized by comprising a body part and a cover part;

the body part is provided with a first surface and a second surface which are arranged back to back, and a negative pressure port penetrating through the first surface and the second surface;

The cover part is connected with the first surface, the opening end of the cover part surrounds the negative pressure port, a first notch is formed in the cover part and communicated with the negative pressure port, and the opening of the first notch faces to the bottom of the body part.