WO2020093386A1

WO2020093386A1 - Robotic vacuum cleaner

Info

Publication number: WO2020093386A1
Application number: PCT/CN2018/114883
Authority: WO
Inventors: 程杰锋; 李清; 胡斯特; 李忠华; 金成镇; 付涛
Original assignee: 广东美的白色家电技术创新中心有限公司; 美的集团股份有限公司
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2020-05-14
Also published as: CN111432705B; CN111432705A

Abstract

Disclosed is a robotic vacuum cleaner. The robotic vacuum cleaner comprises: a chassis having a floor brush nozzle; and driving wheels installed at the chassis and positioned at widthwise sides of the floor brush nozzle. The floor brush nozzle extends toward two sides from a middle portion of the chassis. The technical solution of the present invention facilitates extending the length of a floor brush nozzle, thereby enhancing cleaning efficiency.

Description

Sweeping robot The

Technical field

The invention relates to the technical field of sweeping robots, in particular to a sweeping robot.

Background technique

With the improvement of people's living standards, sweeping robots are more and more widely used, and people's requirements for sweeping robots are becoming higher and higher. In the existing sweeping robots, the rollers are provided at both ends of the suction port of the floor brush, so that the length of the suction port of the floor brush is restricted, which is not conducive to the efficient dust suction of the floor brush suction port.

Summary of the invention

The main object of the present invention is to provide a cleaning robot, which aims to improve the cleaning efficiency of the cleaning robot.

In order to achieve the above object, the floor cleaning robot proposed by the present invention includes:

A chassis with a ground brush suction opening formed on the chassis;

A driving wheel, the driving wheel is mounted on the chassis, and is located on one side of the width direction of the floor brush suction port, and both ends of the floor brush suction port extend from the middle of the chassis to both sides of the chassis.

Optionally, the driving wheel is located on the rear side of the floor brush suction port.

Optionally, the ground brush suction port is elongated, and both ends thereof extend to the edge of the chassis.

Optionally, a roller brush motor for driving the roller brush of the cleaning robot is installed directly above the chassis facing away from the roller brush.

Optionally, the dust cup of the cleaning robot is disposed on the edge of the front side of the chassis.

Optionally, the dust cup of the cleaning robot is made of transparent material.

Optionally, the distance between the chassis on the front side of the ground brush suction port and the bottom of the driving wheel gradually increases from the ground brush suction port to the edge of the front side of the chassis.

Optionally, a side of the dust cup facing the ground brush suction port extends along a length direction of the ground brush suction port, and a side of the dust cup facing the front side of the chassis extends along an edge of the front side of the chassis.

Optionally, an installation cavity for installing a roller brush of the cleaning robot is formed on the chassis, the installation cavity protrudes upward from the chassis, and one side of the dust cup of the cleaning robot faces the installation cavity A side wall is provided, a dust outlet is opened on the side wall of the installation cavity, a dust suction outlet is opened on the side wall of the dust cup, and the dust outlet is provided corresponding to the dust suction outlet.

Optionally, the dust cup includes an ash deposit cup and a separator provided in the ash deposit cup, and the separator is detachably connected to the ash deposit cup.

Optionally, the electric control board of the cleaning robot is provided with a side of the bottom of the installation cavity facing away from the roller brush, and the electric control board extends along the length direction of the installation cavity.

Optionally, on the front side of the floor brush suction port, a plurality of protrusions arranged at intervals are provided, and a pressurizing groove is formed between two adjacent protrusions, and the width of the pressurizing groove is 6-15 mm.

Optionally, the protrusion has a wind guide slope, and the distance between the wind guide slope and the chassis gradually increases from the front side of the chassis to the suction opening.

Optionally, the width of the floor brush suction opening is 26-50 mm.

Optionally, the roller brush of the cleaning robot is installed in the installation cavity, the installation cavity is formed on the chassis, the floor brush suction port is formed at the opening of the installation cavity, and the roller brush extends along the floor brush suction port To both ends of the chassis.

Optionally, the sweeping robot further includes a jet dusting structure, the jet dusting structure is installed on the chassis, the jet dusting structure has an air inlet, an air outlet, and the air inlet and The jet channel of the air outlet, the air inlet for airflow to enter the jet channel, the air outlet is located on the front side of the floor brush suction port of the cleaning robot.

Optionally, the jet channel extends obliquely from the top of the front side of the chassis to the direction of the ground brush suction port.

Optionally, the angle α between the jet channel and the vertical direction is 20 to 70 °.

Optionally, the cross-sectional area of the jet channel gradually decreases from the air inlet to the air outlet.

Optionally, the cleaning robot further includes a dust suction motor, an exhaust port of the dust suction motor communicates with the air inlet, and an air inlet of the dust suction motor communicates with the suction port of the floor brush.

Optionally, the exhaust port and the air inlet are connected by a hose;

The cleaning robot includes an installation cylinder for installing a rolling brush, a mounting column is provided on a side of the installation cylinder facing away from the rolling brush, and a circuit board of the cleaning robot is installed on the installation column;

The hose passes through the limit gap enclosed by the circuit board, the mounting post and the mounting tube.

In the technical solution of the present invention, by setting the driving wheel of the sweeping robot to the side of the floor brush suction port, the floor brush suction port can continue to extend along the original length direction, thereby increasing the length of the floor brush suction port; In this case, dust enters the interior of the sweeping robot from the suction port of the floor brush. Compared with the scheme in which the driving wheels are located at both ends of the suction port of the floor brush, this application increases the length of the suction port of the floor brush, which is beneficial to the area where the suction port of the floor brush passes the sweeping robot more comprehensively. Cleaning is used to improve the working efficiency of the sweeping robot.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained according to the structures shown in these drawings.

1 is a schematic structural diagram of an embodiment of a sweeping robot of the present invention;

Figure 2 is a schematic diagram of the structure at the bottom of Figure 1;

3 is a schematic view of the axis structure of the embodiment of FIG. 2;

FIG. 4 is a partially enlarged view at A in FIG. 3;

FIG. 5 is a partially enlarged view at B in FIG. 3;

6 is a schematic structural view of the support member in FIG. 5;

7 is a schematic diagram of the structure of the cleaning robot placed on the ground;

FIG. 8 is a partially enlarged schematic view at C in FIG. 7;

9 is a schematic structural view of another embodiment at the bottom of FIG. 1;

FIG. 10 is a partially enlarged schematic view at D in FIG. 9;

11 is a schematic structural view of another embodiment at the bottom of FIG. 1;

FIG. 12 is a partially enlarged schematic view at E in FIG. 11;

13 is a schematic structural view of another embodiment at the bottom of FIG. 1;

14 is a partially enlarged schematic view at F in FIG. 13;

15 is a schematic diagram of the structure of the scraping strip in FIG. 2;

Figure 16 is a schematic diagram of the structure of the top of the chassis;

17 is a schematic view of the structure of another angle of the top of the chassis;

18 is a schematic structural view of the dust cup in FIG. 17;

19 is a schematic diagram of the internal structure of the dust cup;

20 is a schematic structural view of another embodiment of the top of the chassis;

21 is a schematic structural diagram at the bottom of FIG. 1;

FIG. 22 is a partial enlarged view at A in FIG. 21;

23 is a schematic structural view of an embodiment of the top of the chassis;

24 is a schematic structural view of another embodiment of the top of the chassis;

25 is a schematic diagram of the internal structure of an embodiment of the sweeping robot of the present invention;

FIG. 26 is a partial enlarged view at B in FIG. 25;

27 is a schematic cross-sectional structural diagram of an embodiment of a sweeping robot of the present invention;

FIG. 28 is a partially enlarged view at C in FIG. 27. FIG.

Description of Drawing Symbols:

标号Label	名称name	标号Label	名称name
100100	底盘Chassis	110110	地刷吸口Floor brush suction
120120	容置腔Accommodating cavity	130130	驱动轮安装结构Drive wheel installation structure
140140	接触式检测电极Contact detection electrode	150150	万向轮Universal wheel
160160	凸起Raised	170170	安装侧Mounting side
180180	支撑侧Support side	190190	安装槽Mounting slot
290290	壳罩Shell	300300	滚刷Roller brush
400400	刮条Scraper	410410	固定部Fixed part
420420	清洁部Cleaning Department	500500	支撑结构supporting structure
600600	支撑件supporting item	610610	转轴Hinge
700700	尘杯Dust cup	710710	吸尘口Vacuum port
720720	分离器Splitter	721721	滤网Strainer
722722	外壳shell	730730	积灰杯Ash Cup
750750	电路板Circuit board	760760	安装柱Mounting post
800800	安装筒Mounting tube	810810	安装腔Installation cavity
850850	滚刷电机Roller brush motor	900900	吸尘电机Vacuum motor
950950	电池组件Battery pack

The implementation, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the drawings) With respect to the relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication changes accordingly.

In addition, descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may include at least one of the features either explicitly or implicitly. At the same time, the meaning of "and / or" appearing throughout the text includes three schemes, taking "A and / or B" as an example, including scheme A, or scheme B, or schemes satisfying both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of those skilled in the art to realize. When the combination of technical solutions contradicts or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the protection scope claimed by the present invention.

The invention mainly proposes a sweeping robot. In order to make the sweeping robot move flexibly in a room or with a cleaning place, the sweeping robot has a small volume. In order to improve the working efficiency of the cleaning robot and make the cleaning robot work more stably and reliably, this application proposes a series of solutions to improve the chassis 100. Mainly include the following aspects, by adding a support structure 500 on the rear side of the scraper 400 to increase the strength of the scraper 400 during work; by providing a support 600 on the chassis 100 to prevent the chassis 100 and the chassis 100 Contact to achieve the purpose of controlling the gap between the chassis 100 and the ground; adjust the position of the drive wheel and drive motor relative to the ground brush suction port 110; readjust the position and structure between the dust cup 700 and the roller brush 300 installation cavity, and so on.

In order to facilitate the description of the structural layout of the chassis 100, the working process of the cleaning robot will be briefly introduced first. The cleaning robot includes a chassis 100, which is provided with a driving wheel in contact with the ground, and the driving wheel carries the chassis 100 and other components to move; the middle part of the chassis 100 is provided with a floor brush suction port 110, and a rolling brush 300 is provided in the floor brush suction port 110. A wiper strip 400 is provided on the rear side of the ground brush suction port 110, and the ground brush suction port 110 and the roller brush 300 collect the dust and other dirt corresponding to the ground brush suction port 110 into the dust cup 700, and the wiper strip 400 blocks from the rear side And suck the dirt, and scrape the dirt that sticks to the ground for the cleaning of the roller brush 300 and the floor brush suction port 110. Among them, the roller brush 300 can not only pick up the dirt and dirt adhering to the ground, but also bring the dirt and dirt into the mouth of the ground brush. Under the effect of negative pressure, dirt is sucked into the dust cup 700 above the chassis 100, wherein the dust cup 700 is disposed on the front side of the chassis 100. Above the chassis 100, a dust suction motor 900, a battery assembly 950, a mounting structure 130 for driving wheels, a mounting barrel 800 for mounting the roller brush 300, and a driving motor for the roller brush 300 are provided. Wherein, the mounting cylinder 800 extends in the radial direction of the chassis 100, the dust cup 700 is disposed on the front side of the mounting cylinder 800, the dust suction motor 900 is disposed on the rear side of the mounting cylinder 800, and the air outlet of the dust suction motor 900 and the dust cup 700 It is connected through a hose; the front side of the installation cylinder 800 is provided with an air outlet, and the rear side of the dust cup 700 is provided with an air inlet. The air outlet of the installation cylinder 800 corresponds to the air inlet of the dust cup 700 and is connected; the installation cylinder 800 On the rear chassis 100, two mounting structures for mounting driving wheels are respectively provided near the two ends of the chassis. The vacuum motor 900 and the battery are located between the two mounting structures; the driving motor of the roller brush 300 is mounted on the mounting cylinder On 800, it is thought that the installation structure of the drive wheel makes room to further improve the space utilization rate. Through the above arrangement of the components of the chassis 100, the space is fully and reasonably utilized, so that the chassis 100 has a compact structure, and the air duct path is short and smooth, which is not only beneficial to improve the structural stability of the chassis 100, but also improve the efficiency of vacuuming of the cleaning robot. The driving wheel, battery, vacuum motor 900, etc. are placed on the rear side of the chassis 100, so that the center of gravity of the chassis 100 is rearward, which avoids the front side of the chassis 100 from contacting the ground during traveling, and beneficially brushes the suction port 110 Work, have the benefit of improving the stability of the sweeping robot. In order to protect the structure at the top of the bottom, a cover is provided on the chassis 100, and the cover 290 is provided on the chassis 100 to protect the above components therein.

The following will mainly describe the specific structure of the bottom and top of the cleaning robot chassis 100. For ease of reading, the following first introduces the improved structure of the bottom of the chassis 100, sequentially introduces the scraper 400 and its supporting structure 500, and the structure used to maintain the distance between the chassis 100 and the ground Support 600; The improved structure on the top of the chassis 100 will be introduced again.

First, the scraping bar 400 and its supporting structure 500 will be introduced. Referring to FIGS. 1 to 20, in the embodiment of the present invention, the cleaning robot includes:

The chassis 100, which has a mounting side 170 facing the surface to be cleaned;

A scraping strip 400, the scraping strip 400 is mounted on the mounting side 170 of the chassis 100, and the scraping strip 400 has a dirt facing side and a stained side that are oppositely arranged;

The supporting structure 500 is installed on the chassis 100 and is located on the dirty side of the scraping strip 400.

Specifically, in this embodiment, there may be many shapes of the chassis 100, such as a circle, an ellipse, a rectangle, a triangle, or other polygons. Taking a circular arrangement as an example, in this way, it is advantageous for the cleaning robot to flexibly clean every corner. Dirty dirt. The scraping strip 400 is provided in a long shape, and the scraping strip 400 extends along the length direction of the ground brush suction port 110. The scraper strip 400 has elasticity and is made of rubber or plastic. The scraper strip 400 is located on the rear side of the ground brush suction port 110. When dirt is not sucked into the ground brush suction port 110, it is blocked by the scraper strip 400, and the ground brush suction port 110 and the roller brush 300 are continuously loaded into the dust cup 700 in. During the process of abutting and squeezing the scraper strip 400, the scraper strip 400 can scrape dirt with a certain degree of adhesion to the ground. When the volume of the dirty object is large, the hardness is high, or the degree of adhesion to the ground is high, the scraper 400 is easily deformed due to its elasticity. When the deformation of the wiper strip 400 occurs to a certain extent, it abuts the supporting structure 500 on the rear side thereof, and the support structure 500 hinders or prevents the scraper strip 400 from continuing to deform, so that the scraper strip 400 has greater resistance to deformation, thereby making it possible Dirty dirt leaking from the bottom of the scraper continues to be squeezed, and finally the dirt is scraped off the ground or retained on the side of the scraper strip 400 facing the ground suction port 110. It is worth noting that the dirt-facing side of the scraper strip 400 is the side of the scraper strip 400 facing the dirt, that is, the front side of the scraper strip 400; the dirty side of the scraper strip 400 is that the scraper strip 400 faces away from the dirt One side of the object is the back side of the scraping strip 400.

Among them, the support structure 500 may have many forms. In general, as long as it can hinder or prevent the deformation of the wiper strip 400, for example, bumps, bumps, convex plates, etc., taking the bump as an example, both A plurality of protrusions may be arranged along the length direction of the wiper strip 400, or a whole block may extend along the length direction of the wiper strip 400. The material of the support structure 500 may be many, such as hard metal, tempered glass, hard plastic, etc. Taking the same material as the chassis 100 as an example. By setting the material of the support structure 500 to be the same as the material of the chassis 100, after the two are connected, during the process of the support structure 500 being stressed, there will be no damage due to too much difference in stiffness, which is beneficial to improve the use of the support structure 500 Life and working stability.

Of course, in some embodiments, in order to simplify the production, manufacturing, and assembly processes of the support structure 500, the support structure 500 and the chassis 100 are integrally formed. By integrally forming and supporting the support structure 500 and the chassis 100, it is also beneficial to increase the bearing strength of the support structure 500.

In some embodiments, in order to improve the supporting effect of the supporting structure 500, the scraper bar 400 has elasticity and / or flexibility, and the rigidity of the supporting structure 500 is greater than the rigidity of the scraper bar 400. By setting the stiffness of the support structure 500 to be greater than the stiffness of the scraper strip 400, when the scraper strip 400 deforms to abut the support structure 500, the support structure 500 can give greater resistance to deformation, thereby more effectively hindering or preventing the scraper strip 400 Continue to deform. Therefore, it is beneficial to improve the working efficiency of the scraper bar 400 and to improve the working efficiency of the cleaning robot.

In some embodiments, in order to ensure the working effect of the scraper strip 400, the length of the scraper strip 400 is greater than the length of the floor brush suction port 110 of the cleaning robot, and the two ends of the scraper strip 400 respectively extend out of the ground The two ends of the brush suction port 110 are provided. In this way, dust and other contaminants will not be missed and collected by the floor brush suction port 110, but will leak from both ends of the wiper strip 400, and cannot be collected by the floor brush suction port 110, thereby improving the cleaning efficiency of the cleaning robot.

In the technical solution of the present invention, during the operation of the cleaning robot, when the dirt-facing side of the scraper bar 400 encounters large particles of garbage or garbage adhered to the ground, the scraper bar 400 will bend and deform toward the dirty side. When the deformation amount of the wiper strip 400 reaches a preset level (it is worth noting that the deformation amount is defined by the distance between the wiper strip 400 and the support structure 500, and the distance can be greater than or equal to zero), the dirty side of the wiper strip 400 Contact with the support structure 500, the scraper bar 400 stops deforming, and it works under the support of the support structure 500. Due to the support of the support structure 500, the support structure 500 transmits the force to the trash through the scraper bar 400 to sweep the trash to The ground brush suction port 110 can smoothly clean large particles of garbage while maintaining the distance between the scraper bar 400 and the ground to ensure the cleaning effect of small particles of garbage, thereby greatly improving the cleaning effect of the scraper bar 400.

It is worth noting that, in order to improve the supporting effect of the supporting structure 500, the distance between the supporting surface of the supporting structure 500 and the dirty side of the wiper strip 400 is less than or equal to 2 to 4 mm. The supporting surface of the supporting structure 500 faces the scraper strip 400, and the distance between the support surface and the dirty side determines the deformable distance of the scraper strip 400, and also affects the distance of the cleaning portion 420 of the scraper strip 400 from the ground due to monetization . When the distance between the two is too large, the distance between the bottom of the scraper 400 and the ground is too large, and it is easy to leak dirt; when the distance between the two is too small, the deformable space of the scraper 400 And the deformable amount is too small, and the scraping strip 400 is easily damaged.

In order to improve the function of the supporting structure 500, the distance between the bottom of the supporting structure 500 and the chassis 100 is less than 1 to 3 mm than the distance between the bottom of the scraping bar 400 and the chassis 100. When the ground is flat, the distance between the bottom of the scraper 400 and the ground is 1 to 3 mm smaller than the distance between the support structure 500 and the ground. When the scraper bar 400 is deformed, it needs to move upward by 1 ~ 3 mm to contact the support structure 500. Therefore, while controlling the deformation amount of the scraping strip 400, the distance between the deformed scraping strip 400 and the ground is verified. When the distance is too large, the distance between the scraper bar 400 and the ground will become larger, easily causing leakage of dirt; when the distance is too small, the amount of deformation of the scraper bar 400 is too small, easily damaged, not conducive to scraping Use of Article 400.

In some embodiments, in order to improve the installation convenience and stability of the wiper strip 400, the wiper strip 400 includes a fixing portion 410 and a cleaning portion 420 connected to the fixing portion 410; the chassis 100 is provided with an installation In the slot 190, the fixing portion 410 is inserted into the mounting slot 190.

The cross-sectional shape of the scraping bar 400 may have many shapes such as V-shaped, trapezoidal, triangular, rectangular, etc. In this embodiment, the cross-sectional configuration of the “T” shape is taken as an example, and the cross-section of the mounting groove 190 is rectangular. And an opening is opened on the side facing away from the chassis 100. The lateral portion (fixing portion 410) of the scraper bar 400 is inserted into the mounting groove 190, and the vertical portion (cleaning portion 420) of the scraper bar 400 protrudes from the mounting groove 190 from the opening. When installing and removing the scraper strip 400, it only needs to be inserted or pulled out from the end of the mounting groove 190, which is very convenient. It is beneficial to improve the efficiency of the installation, disassembly and maintenance of the scraper strip 400, and to the replacement of the scraper strip 400. By setting the cross-section of the wiper strip 400 to be T-shaped, when the wiper strip 400 is stressed, the cleaning part 420 transmits the force to the fixing part 410, which is fixed by the installation groove 190, and the cleaning part 420 is elastically deformed . In this way, the scraper strip 400 can not only effectively use the whole to divide the force, but also can be stably installed.

The following specifically introduces several forms of support structure 500:

The supporting structure 500 includes a plurality of supporting protrusions 160, and the plurality of supporting protrusions 160 are arranged along the length direction of the scraper bar 400. Wherein, the cross section of the supporting protrusion 160 is one of rectangular, triangular, circular and elliptical. One end of the supporting protrusion 160 is connected to the chassis 100 and the other end extends away from the chassis 100. There is a gap between adjacent support protrusions 160. Since the volume of the support protrusion 160 is relatively small, the direct distance between the force portion and the fixing portion 410 is short, so that the force moment of the support protrusion 160 is small, which is beneficial to improve the load-bearing capacity of the support protrusion 160.

In some embodiments, the support structure 500 includes support ribs arranged along the length of the squeegee. The support bar is a complete continuous bar. When the scraper bar 400 squeezes the support ribs, the contact area between the support ribs and the scraper bar 400 is larger, which can better prevent the scraper bar 400 from further deformation, which is beneficial to improve work efficiency.

13 and 14, it is worth noting that in some embodiments, in order to adjust the distance between the scraper bar 400 and the support ribs and the ground, while increasing the service life of the scraper bar 400, the support ribs are away from the chassis 100 One side has an escape surface, and the distance between the escape surface and the scraper 400 gradually decreases downward from the chassis 100, and the escape surface is provided in an arc shape. By setting the avoidance surface, the deformation of the scraper strip 400 extends along the avoidance surface after contacting the support rib, so that the distance between the scraper strip 400 and the ground is gradually reduced, thereby adapting to different sizes of dirt and dirt to improve the adaptability; At the same time, because the avoiding surface is arc-shaped, when the scraping strip 400 contacts the avoiding surface, the scraping strip 400 and the avoiding surface are bonded, and the contact area between the two is greatly increased to avoid forming a large stress on the scraping strip 400. , Thereby benefiting the long-term use of the scraping strip 400.

In some embodiments, in order to apply characteristic working conditions, the number of the supporting structure 500 is two, which are respectively disposed on the dirty side and the dirty side of the scraper bar 400. For example, when the degree of adhesion of dirt to the ground is high, and the scraping strip 400 cannot scrape the dirt once, the scraping strip 400 needs to scrape the dirt more than once. In order to improve the working efficiency of the scraper bar 400, when the sweeping robot is in the backward process, when the scraper bar 400 completely scrapes off dirt from the rear, the scraper bar 400 can also be supported by the support structure 500, thereby greatly improving the scraper bar 400 Work efficiency. In addition, it can also prevent damage to the wiper strip 400 due to excessive deformation of the wiper strip 400 during the backward movement of the cleaning robot. Therefore, by providing support structures 500 on both sides of the scraper strip 400, it is beneficial to improve the scraper strip 400 lifespan.

The support member 600 that maintains the distance between the chassis 100 and the ground is described below.

A sweeping robot, including:

A driving wheel, the driving wheel is mounted on the chassis 100;

A supporting member 600, the supporting member 600 is installed on the mounting side 170 of the chassis 100, and the distance between the bottom of the supporting member 600 and the chassis 100 is less than or equal to the distance between the bottom of the driving wheel and the chassis 100 The distance between.

Specifically, in this embodiment, the chassis 100 has an installation side 170 and a support side 180. The installation side 170 is the side facing the ground during operation, that is, the bottom of the chassis 100 mentioned in the above embodiment, and the support side 180 is the chassis 100 top. The driving wheels are installed on both sides of the rear of the chassis 100 (the rear side of the mounting cylinder 800). When the cleaning robot works, the driving wheels are in contact with the ground.

During normal operation, the distance between the bottom of the support 600 and the chassis 100 is less than or equal to the distance between the bottom of the driving wheel and the chassis 100, that is, between the bottom of the support 600 and the ground gap. When the chassis 100 is deformed or encounters a collision, etc., which causes the chassis 100 to lower, the end of the support 600 away from the chassis 100 abuts the ground to ensure that the preset distance is maintained between the chassis 100 and the ground.

There may be many forms of the support member 600, which may be fixedly connected to the chassis 100 and sliding friction with the ground when it is in contact with the ground; or may be movably connected with the chassis 100 and rolling friction when it is in contact with the ground. The number of the support members 600 is plural, and the plurality of support members 600 are distributed on the chassis 100. When the supporting member 600 is the supporting protrusion 160, the cross section of the supporting protrusion 160 is one of rectangular, triangular, circular and elliptical. One end of the supporting protrusion 160 is connected to the chassis 100 and the other end extends away from the chassis 100. Alternatively, the support 600 includes a support column, one end of the support column is connected to the chassis 100, and the other end extends away from the chassis 100. The support 600 may also be a ball, a roller, etc. When the support 600 contacts the ground, the support 600 rolls.

In the technical solution of the present invention, during the working process of the cleaning robot, in a normal state, the support 600 is suspended at a position away from the chassis 100 and has a gap with the ground; when the chassis 100 is due to manufacturing, processing errors, its own strength and movement conditions When the chassis 100 is deformed due to one or more reasons, the position of the support 600 away from the chassis 100 will be in contact with the ground. The support 600 supports the chassis 100 to prevent the chassis 100 from contacting the ground, thereby effectively ensuring the chassis 100 and the ground The distance between them is to ensure that the floor brush of the sweeping robot has a reasonable pressure and that dust has enough space to enter the floor brush suction port 110, thereby ensuring the working efficiency and working effect of the sweeping robot.

In order to ensure the supporting effect of the supporting member 600, the distance between the bottom of the supporting member 600 and the bottom of the driving wheel is 0.6-5 mm. When the cleaning robot is placed on the ground, the distance between the bottom of the support 600 and the ground is 0.6-5 mm. That is, when the cleaning robot is working normally, the distance between the support 600 and the ground is maintained at 0.6 ~ 5mm. When the amount of deformation of the chassis 100 of the cleaning robot during the work reaches 0.6 ~ 5mm, the bottom of the support 600 is Support by ground contact. The distance between the bottom of the support 600 and the ground should not be too large. If it is too large, it may happen that part of the chassis 100 has been in contact with the ground, but the support 600 has not yet come into contact with the ground (the chassis 100 deforms greatly and deforms (When the support member 600 is not provided in the position), that is, the work of the support member 600 is unreliable; it should not be too small, too small, so that the support member 600 can easily contact the ground, easily causing loss of the support member 600, and increasing The resistance of the sweeping robot to travel.

The following specifically describes the situation where the supporting member 600 is movably connected to the chassis 100.

In some embodiments, the support 600 is rotatably connected to the chassis 100. There are many ways to rotate the connection, such as rollers, balls (balls), etc., any way that can support the chassis 100 while rolling friction with the ground.

Taking a rolling ball as an example, the support 600 includes a supporting rolling ball, an installation cavity is provided on the chassis 100, the supporting rolling ball is installed in the installation cavity, and a part of the protrusion protrudes from the chassis 100 . The mounting cavity is provided on the chassis 100, and the cavity wall of the mounting cavity facing the mounting side 170 of the chassis 100 is provided with a through hole for part of the support ball to extend. The shape of the installation cavity takes a spherical surface as an example. The support ball rolls in the installation cavity under the action of the chassis 100, and at the same time functions to support the chassis 100 and reduce friction between the support 600 and the ground. Of course, in some embodiments, the installation cavity may have a top cover. After the support roller is put into the installation cavity, the top cover is sealed to the installation cavity to prevent the support roller from falling off. The setting of the support ball makes it possible for the sweeping robot to flexibly change the rotation direction no matter which direction it moves.

The supporting member 600 includes a roller, and two ends of the roller have rotating shafts 610 that are rotatably connected to the chassis 100. Generally, the rotating shaft 610 of the roller is parallel to the rotating shaft 610 of the driving wheel, that is, the rolling direction of the roller is consistent with the rolling direction of the driving wheel. There are many ways to connect the roller to the chassis 100. For example, two opposite support beams and support lugs may extend from the bottom of the chassis 100 to the ground. The support beams are provided with shaft holes, and the rotating shaft 610 of the roller is inserted into the shaft. In the hole.

Of course, in some embodiments, an accommodating cavity 120 may also be provided on the mounting side 170 of the chassis 100, a shaft hole may be provided on a side wall of the accommodating cavity 120, and the roller may be installed in the accommodating cavity 120 Inside, the rotating shaft 610 is installed in the shaft hole; a portion of the roller protrudes out of the chassis 100. Hide the shaft hole and part of the roller. On the one hand, it can minimize the influence of external environmental factors, such as dust, water, debris, etc., on the work of the roller shaft 610; on the other hand, it can control the bottom of the roller and the ground very conveniently The distance between the shaft hole and the bottom of the chassis 100 can be set according to the diameter of the roller and the distance from the ground to be set. In this way, it is advantageous to control the distance between the chassis 100 and the ground.

In some embodiments, in order to ensure the distance between the ground brush suction port 110 and the ground, and to ensure the normal and efficient operation of the ground brush suction port 110, the chassis 100 is also provided with a ground brush suction port 110, and the support 600 is provided At both ends of the front side of the ground brush suction port 110. By providing supports 600 at both ends of the front side of the floor brush suction port 110, the phenomenon that the chassis 100 at both ends of the front side of the floor brush suction port 110 directly contacts the ground is avoided, thereby ensuring the air intake of the floor brush suction port 110 and ensuring the ground The working efficiency of the brush suction port 110. It is worth noting that the sweeping robot also includes a universal wheel 150 disposed at the foremost side of the chassis 100. The universal wheel 150 and the two support members 600 on the front side are arranged in a triangle. When the chassis 100 is deformed, the universal wheel 150 and Two supports 600 ensure the distance between the front front side and the ground.

Similarly, in order to effectively avoid direct contact between the chassis 100 and the ground, the chassis 100 is also provided with a ground brush suction port 110, and the number of the support members 600 is multiple, and a plurality of the support members 600 are disposed on the ground The rear side of the suction port 110 is brushed and arranged in a triangle. That is, a support member 600 arranged in a triangular shape is provided on the chassis 100 on the rear side of the floor brush suction port 110, and the spacing between the chassis 100 and the ground is ensured by using as few support members 600 as possible.

In order to ensure the working efficiency and stability of the ground brush suction port 110, on the front side of the ground brush suction port 110, the chassis 100 is provided with a plurality of protrusions 160 arranged at intervals, one of the two adjacent protrusions 160 A pressurizing groove is formed between them, and the width of the pressurizing groove is 6-15 mm. Through the arrangement of the protrusions 160, even when the chassis 100 at other positions directly contacts the ground, the protrusions 160 can ensure that the distance between the chassis 100 on the front side of the suction port 110 and the ground is maintained. At the same time, through the arrangement of the pressurizing tank, the wind pressure entering the floor brush suction port 110 is increased, which is beneficial to improve the working efficiency and working intensity of the floor brush suction port 110. The width of the booster tank should not be too small or too large. When the size of the booster tank is too small, the blocking area is large, which will affect the total air intake of the brush suction port 110; when the size of the booster tank is too large , The supercharging effect is not good, which is not conducive to a large increase in wind pressure.

In some embodiments, in order to further improve the supercharging effect, the protrusion 160 has a wind guide slope, and the distance between the wind guide slope and the chassis 100 gradually increases from the front side of the chassis 100 to the suction port 110 . In this embodiment, the inclined surface of the wind guide is inclined, so that the distance between the inclined surface of the wind guide and the ground is gradually reduced, so that the wind pressure is gradually increased, which is beneficial to improve the cleaning ability of the cleaning robot.

It is worth noting that, in some embodiments, in order to improve the working efficiency of the ground brush suction port 110, the width of the ground brush suction port 110 is 26-50 mm. The size of the floor brush suction port 110 should not be too wide. If the width is too large, it will lead to a larger air intake area. At this time, the wind pressure of the air intake will be reduced, which is not conducive to the suction of dirt; It should not be too small. If it is too small, the extendable portion of the roller brush 300 is reduced, which is not conducive to the improvement of the working efficiency of the cleaning robot, and at the same time, it is also not conducive to the entry of dirt.

The layout of the chassis 100 such as the direct positional relationship between the driving wheel and the ground brush suction port 110 will be described below.

A sweeping robot, including:

Chassis 100, and a ground brush suction port 110 is opened on the chassis 100;

A driving wheel, the driving wheel is mounted on the chassis 100 and is located on one side in the width direction of the floor brush suction port 110, and both ends of the floor brush suction port 110 extend from the middle of the chassis 100 to both sides of the chassis 100.

Specifically, in this embodiment, there may be many forms of the ground brush suction port 110, such as a single elongated shape, or multiple segments. When multiple segments are arranged, they may be arranged in a straight line or in a V shape. In some embodiments, in order to improve the working efficiency of the ground brush suction port 110, the height of the front side of the ground brush suction port 110 from the ground is set to be greater than the height of the rear side of the ground brush suction port 110 from the ground. In this way, it is easier for dirt to enter the floor brush suction port 110, which is beneficial to improve the working efficiency of the floor brush suction port 110. In some embodiments, the ground brush suction port 110 has an elongated shape, and both ends thereof extend to the edge of the chassis 100. In this way, the length of the ground brush suction port 110 will be the longest.

Since the driving wheel is located on the side of the ground brush suction port 110, the drive wheel does not limit the extension of the ground brush suction port 110, so that the ground brush suction port 110 can extend arbitrarily on the chassis 100 in the direction of its extension. The length can be greatly extended, which is helpful to increase the cleaning range covered by the brush suction port 110, and is conducive to improving the cleaning efficiency of the cleaning robot.

It is worth noting that in order to improve the working efficiency of the cleaning robot, the rolling brush 300 of the cleaning robot is installed in the installation cavity, the installation cavity is formed on the chassis 100, and the floor brush suction port 110 is formed at the opening of the installation cavity The roller brush 300 extends along the ground brush suction port 110 to both ends of the chassis 100. That is, the length of the roller brush 300 is equivalent to the length of the floor brush suction port 110, and the space of the floor brush suction port 110 is used as much as possible, so as to achieve the purpose of improving work efficiency.

Specifically, in this embodiment, by setting the driving wheel of the cleaning robot to the side of the floor brush suction port 110, the floor brush suction port 110 can continue to extend in the original length direction, thereby increasing the length of the floor brush suction port 110; During the work of the sweeping robot, dust enters the interior of the sweeping robot from the floor brush suction port 110. Compared with the scheme in which the driving wheels are located at both ends of the floor brush suction port 110, the present application increases the length of the floor brush suction port 110, which is beneficial to the floor brush suction port 110 More comprehensively clean the area where the cleaning robot passes, and use it to improve the efficiency of the cleaning robot.

In some embodiments, in order to further increase the working efficiency of the ground brush suction port 110, the driving wheel is located on the rear side of the ground brush suction port 110. By setting the driving wheel on the rear side of the floor brush suction port 110, the driving wheel is prevented from blocking the airflow from entering the floor brush suction port 110. Compared with setting the drive wheel on the front side of the floor brush suction port 110, the The air intake range is beneficial to better work of the suction port 110.

In some embodiments, in order to further improve the compactness of the structure, a roller brush motor 850 for driving the roller brush 300 of the cleaning robot is installed directly above the chassis 100 facing away from the roller brush 300.

In this embodiment, by installing the roller brush motor 850 directly above the roller brush 300, the space on the rear side of the chassis 100 is increased, which is beneficial to the installation of the driving wheel. When the space occupied by the driving wheel is fixed, By adjusting the position of the roller brush motor 850, it is advantageous to improve the compactness of the structure.

Specifically, the mounting cylinder 800 forming the mounting cavity of the roller brush 300 is protruding from the top of the chassis 100, and the roller brush motor 850 is disposed on the mounting cylinder 800. There are many ways to install the roller brush motor 850 and the mounting tube 800, such as screw, snap, glue, etc. By setting the roller brush motor 850 to the top of the mounting cylinder 800, the area occupied by the chassis 100 is freed, which is advantageous for the installation of the driving wheel. The driving motor of the roller brush 300 is connected to the roller brush 300 through a transmission mechanism, and the transmission structure may be a gear, a connecting rod, or the like.

Compared with the existing scheme in which the driving wheels are provided at both ends of the floor brush suction port 110, the driving wheels are arranged on the rear side of the chassis 100, and a position for installing the driving wheels needs to be increased on the chassis 100 by setting the roller brush motor 850 to the installation The top of the barrel 800 increases the area of the rear side of the chassis 100, which is just for installing the driving wheel. In this way, the space of the chassis 100 is cleverly and reasonably used, which is conducive to improving the compactness of the structure and greatly increasing the length of the floor brush suction port 110.

In this embodiment, the dust cup 700 of the cleaning robot is disposed at the front edge of the chassis 100. By disposing the dust cup 700 on the edge of the front side of the chassis 100, it is convenient for the user to disassemble and install the dust cup 700 conveniently and quickly, and is convenient for the user to clean the dust in the dust cup 700 conveniently.

In some embodiments, the dust cup 700 of the cleaning robot is made of a transparent material. By using a transparent material to manufacture the dust cup 700, the user can clearly know the accumulation of dust inside the case without disassembling the dust cup 700, which is beneficial to the user to observe the storage situation of the dust cup 700 and to facilitate the user to clean the dust in time Cup 700.

In order to improve the working efficiency of the ground brush suction port 110, the distance between the chassis 100 on the front side of the ground brush suction port 110 and the bottom of the driving wheel gradually increases from the ground brush suction port 110 to the edge of the front side of the chassis 100 .

Specifically, in this embodiment, by the distance between the chassis 100 on the front side of the floor brush suction port 110 and the bottom of the driving wheel, the edge from the floor brush suction port 110 toward the front side of the chassis 100 gradually increases, so that when the cleaning robot is placed on the ground At this time, the distance between the chassis 100 on the front side of the ground brush suction port 110 and the ground gradually increases from the ground brush suction port 110 to the edge of the chassis 100 front side. In this way, the space on the front side of the ground brush suction port 110 is gradually increased. When the gas flows from the large space to the small space, it is beneficial to increase the wind pressure, thereby beneficially brushing the suction port 110 to better absorb the dirt on the ground Thing.

In some embodiments, in order to increase the volume of the dust cup 700, the side of the dust cup 700 facing the ground brush suction port 110 extends along the length of the ground brush suction port 110, and the dust cup 700 faces the front of the chassis 100 The side of the side extends along the edge of the front side of the chassis 100. In this way, the dust cup 700 is shaped (a combination of rectangular and fan-shaped), which greatly increases the volume of the dust cup 700, so that the volume of the dust cup 700 can be maximized, which is beneficial to increase the capacity of the dust cup 700 and reduce users. The number of times to clean the dust cup 700.

In order to improve the smoothness of dirt entering the dust cup 700 from the installation cavity, an installation cavity 810 for installing the roller brush 300 of the cleaning robot is formed on the chassis 100, and the installation cavity 810 protrudes upward from the chassis 100 The side of the dust cup 700 of the cleaning robot is disposed facing the side wall of the installation cavity, a dust outlet is opened on the side wall of the installation cavity, and a dust suction is opened on the side wall of the dust cup 700 Port 710, the dust outlet is corresponding to the dust suction port 710.

Specifically, in this embodiment, the mounting cylinder 800 and the dust cup 700 are arranged adjacently, and the distance between the two is less than or equal to 0.1-6 mm. The side wall of the mounting cylinder 800 facing the dust cup 700 is provided with a dust outlet, and the dust cup 700 is provided with a dust suction port 710 corresponding to the dust outlet of the mounting cylinder 800, between the dust outlet and the dust suction port 710 The distance is 0.1 ~ 6mm. The distance cannot be too large, too large affects the efficiency of the wind; nor too small, too small is not conducive to the connection between the dust outlet and the dust suction port 710. Of course, in some embodiments, a connection structure may be provided at the dust outlet or dust suction port 710 and extend to the other side, so that the two communicate with each other. By arranging the installation cylinder 800 and the dust cup 700 in parallel, and the dust suction port 710 and the dust outlet being arranged adjacently, it is beneficial to improve the efficiency of the airflow entering the dust cup 700 from the installation cavity.

In order to improve the convenience of cleaning the dust cup 700, the dust cup 700 includes a dust accumulation cup 730 and a separator 720 provided in the dust accumulation cup 730, and the separator 720 is detachably connected to the dust accumulation cup 730 . By separating and separating the separator 720 and the soot cup 730, the disassembly, installation and maintenance of the separator 720 and the soot cup 730 are very convenient. The separator 720 is a cyclone separator 720, and the airflow enters into the separator 720 from the dust suction port 710. The separator 720 includes a cylindrically-shaped housing 722 and a filter 721 disposed in the housing 722, and the filter 721 is cylindrical Settings. An air inlet cavity is formed between the filter screen 721 and the housing 722, and the dust suction port 710 communicates with the air inlet cavity. The air inlet cavity communicates with the dust accumulation cup 730 through the mesh of the filter 721. The dust suction motor 900 communicates with the dust accumulation cup 730, and the air in the dust accumulation cup 730 is pumped away by the dust suction motor 900 to form a negative pressure in the dust accumulation cup 730, which causes a negative pressure to form in the air inlet cavity, thereby making A negative pressure is formed in the installation cavity of the roller brush 300. Such setting not only facilitates maintenance, but also prevents dust from being raised again in the dust cup 700, that is, effectively avoids occurrence of secondary dusting.

In order to further improve the compactness of the structure of the cleaning robot, the electric control board of the cleaning robot is provided with a side of the bottom of the installation cavity facing away from the roller brush 300, and the electric control board extends along the length direction of the installation cavity. In this embodiment, the shape of the top of the mounting barrel 800 is irregular, which is advantageous for placing the circuit board 750. Of course, in some embodiments, a mounting post 760 can be provided on the top of the mounting barrel 800, and the circuit board 750 is mounted on the mounting post 760. In this way, the space can be fully and reasonably utilized, and the circuit board 750 is left sufficient for installation Space for components and heat dissipation. With reference to some of the above embodiments, the roller brush motor 850 and the circuit board 750 both extend along the length of the mounting barrel 800, the roller brush motor 850 is disposed at one end of the mounting barrel 800, and the circuit board 750 extends from the middle of the mounting barrel 800 to the other end Extension, there is a gap between the two, so that the brush motor 850 and the circuit board 750 can dissipate heat.

In some embodiments, in order to improve the accuracy of detection, a number of contact detection electrodes 140 are provided on the front side of the chassis. When the contact detection electrodes 140 touch the easily spread dirt (dirt, such as pet waste) , Liquid, such as water, fluid medium, such as ketchup, soup), the electronic control board will judge whether the cleaning robot continues to work according to the detected situation, and an alarm message will occur when it is confirmed that the dirt is easy to spread.

A jet dusting structure 200 installed on the chassis 100, the jet dusting structure 200 has an air inlet 220, an air outlet 230, and a connection between the air inlet 220 and the air outlet 230 In the jet channel 210, the air inlet 220 supplies airflow into the jet channel 210, and the air outlet 230 is located on the front side of the floor brush suction port 110 of the cleaning robot. The floor brush suction port 110 is opened at the bottom of the chassis 100, and the rolling brush is provided in the floor brush suction port 110.

Specifically, in this embodiment, there are many forms of the jet dusting structure 200, such as a plate-like arrangement, a block-like arrangement, a strip-like arrangement, etc., which is not particularly limited here, as long as it has a jet channel 210 capable of jetting To achieve the effect of raising dust. There are many ways to install the jet dust-raising structure 200 on the chassis 100, such as by snap connection, screw connection, adhesive connection, and plug-in connection. Of course, in some embodiments, a slot may also be provided on the chassis 100 to catch the jet dust structure 200 into the slot. In this embodiment, it is taken as an example that the jet dust structure 200 and the chassis 100 are integrally formed. There may be many shapes of the chassis 100, such as polygons, ellipses, circles, etc. In the case of the same volume, in order to allow the cleaning robot to enter a narrower space, the chassis 100 is set to a circle.

The relationship between the jet dust structure 200 and the chassis 100 can be of many types, such as opening an installation port on the chassis 100 to install the water jet dust structure into the installation port, or it can be directly installed on the chassis 100, the chassis 100 A via hole communicating with the jet channel 210 is formed on the top for the air flow to pass through. It suffices to ensure that the air outlet 230 of the jet channel 210 can deliver the airflow to the ground in front of the floor brush suction port 110.

A specific example of the jet dusting structure 200 is described below. The jet dusting structure 200 includes a jet sheet, and the jet sheet is provided with a plurality of the jet channels 210, and the plurality of jet channels 210 are brushed along the ground. 110 is arranged in the longitudinal direction. In this embodiment, the jet dust raising structure 200 is a jet sheet, and the jet channel 210 penetrates the two opposite plates of the jet sheet. A mounting port is opened on the chassis 100, and the jet sheet is installed in the mounting port, so that the air inlet 220 of the jet channel 210 communicates with the top of the chassis 100, and the air outlet 230 communicates with the bottom of the chassis 100. The arrangement of the multiple jet channels 210 enables the dust on the front side of the floor brush suction port 110 to be lifted up reliably, which is beneficial to improve the cleaning effect of the cleaning robot. The air inlet 220 can be supplied individually or collectively. When collectively supplied, an air intake chamber is required. At this time, the jet structure further includes a surrounding plate 240, the jet sheet and the surrounding plate 240 are enclosed to form an air inlet cavity, and the air inlet 220 is located in the air inlet cavity. The surrounding plate 240 is arranged in a long shape, and its cross section may be L-shaped or notched. When it is arranged in an L shape, a baffle plate needs to be provided on the chassis 100 to cooperate with it. The structural cover formed by the surrounding plate 240 and the baffle plate is arranged on the jet sheet; when it is arranged in a notch shape, the surrounding plate 240 is arranged on the jet The air intake cavity is formed on the chip. Of course, in some embodiments, the surrounding panel 240 may be formed integrally with the chassis 100 or may be formed integrally with the jet sheet. In some embodiments, in order to simplify the manufacturing and installation process of the jet sheet, the jet sheet and the chassis 100 are integrally formed.

In this embodiment, by providing the jet dusting structure 200 on the chassis 100, the jet channel 210 of the jet dusting structure 200 penetrates the top and bottom of the chassis 100, and the airflow enters the jet channel 210 from the air inlet 220, passes through the jet channel 210 After spraying out the air outlet 230, the dust on the front side of the ground brush suction port 110 is raised, and the raised dust is sucked into the ground brush suction port 110; when the airflow is sprayed, not only can the flat dust be raised, but also the same Raise the dust in the gap, so that the dust that the floor brush suction port 110 cannot directly absorb is raised, so that the floor brush suction port 110 can absorb the dust in the narrow space such as the gap, and the use of the floor brush suction port 110 to improve the efficiency of vacuuming, It is beneficial to improve the cleaning ability of the cleaning robot.

In some embodiments, the jet channel 210 can better achieve the dusting effect.

The air outlet 230 is disposed toward the ground brush suction port 110. By directing the air outlet 230 toward the ground brush suction port 110, the air flow emitted from the jet channel 210 will vertically dust the ground brush suction port 110. Thus, the suction port 110 is easily brushed to absorb dust. The jet channel 210 extends obliquely from the top of the front side of the chassis 100 toward the ground brush suction port 110. That is, the jet channel 210 extends backward, and the jet channel 210 jets the airflow backward. By arranging the air inlet 220 at the top of the chassis 100, the air intake of the jet channel 210 does not affect the jet of the air outlet 230, and at the same time, the trend of the jet channel 210 can be ensured from top to bottom, which is conducive to airflow transmission.

In order to further ensure the jet effect, the angle α between the jet channel 210 and the vertical direction is 20 ° ~ 70 °. The angle between the jet channel 210 and the vertical direction is the deflection angle of the jet channel 210 toward the ground brush suction port 110. When the angle α is too small, the emitted airflow is reflected to the front side of the floor brush suction port 110, which is not conducive to directly entering the floor brush suction port 110. When the angle α is too large, the reflection distance is far, and may fall to the floor brush suction port The rear side of 110 is also not conducive to brushing the suction port 110 directly.

The inner wall surface of the jet channel 210 may be a flat surface or a curved surface. In some embodiments, it may also have both a flat surface and a curved surface. The following takes the flat surface as an example, and then takes both the flat surface and the curved surface as an example. .

The jet channel 210 extends along a straight line, and the inner wall surface of the jet channel 210 includes a flat surface. In this embodiment, the jet channel 210 is a direct current channel, and the air flow suffers less resistance in the jet channel 210, and can be ejected from the air outlet 230 simply and quickly; at the same time, the linear jet channel 210 is easy to process, which simplifies the processing process. Of course, under some special operating conditions, the jet channel 210 needs to have a large angle change. At this time, a curved surface is required to guide the air flow, so that the air flow transitions smoothly during the deflection angle.

In some implementations, in order to allow the jet channel 210 to have a larger rotation angle in the effective space, a curved section is provided near the air outlet 230. The jet channel 210 includes a drainage section and a suction section disposed near the air inlet 220. A jet section provided near the air outlet 230; the drainage section extends along a straight line, and the jet section extends along a curve. In this embodiment, the airflow first passes through the straight-line drainage section. Before the airflow exits the air outlet 230, the jetting direction of the airflow needs to be adjusted. Through the setting of the jetting section, the jet angle of the airflow jet can reach the optimal jetting angle. effect.

In order to further increase the dusting effect, the cross-sectional area of the jet channel 210 gradually decreases from the air inlet 220 to the air outlet 230. By gradually reducing the cross-sectional area of the jet channel 210, the air pressure of the air flow in the jet channel 210 is gradually increased, so that the flow rate of the air flow at the air outlet 230 is higher, which is beneficial to greatly improve the dusting effect. In order to further improve the accuracy of the pressure and flow velocity adjustment in the jet channel 210, the ratio S1 / S2 of the area S1 of the air outlet 230 to the area S2 of the air inlet 220 is greater than or equal to 0.2 and less than 1. Within a certain range, the ratio of the area of the air outlet 230 to the area of the air inlet 220 is inversely related to the increase in pressure and flow rate, but the ratio of the area of the air outlet 230 to the area of the air inlet 220 cannot be too large when equal to 1. It will not have the effect of supercharging and speed increasing. When it is less than 0.2, the area difference between the air outlet 230 and the air inlet 220 is large, which will affect the normal flow of the airflow, but it is not conducive to the injection of the airflow.

In order to achieve a better jet effect, the length L of the air outlet 230 is 3-20 mm, and / or, the width D of the air outlet 230 is 0.5-3 mm. The length of the air outlet 230 cannot be too long or too short. When it is too long, the airflow flowing out along the length of the air outlet 230 is uneven, and turbulence is likely to occur along its length, which is not conducive to accurate airflow. The length of the air outlet 230 is too long In a short time, the spray length is not enough and the effect is not good. Similarly, the width of the air outlet 230 cannot be too large or too small. When it is too large, the airflow flowing out of the width direction of the air outlet 230 is uneven, and turbulence is likely to occur along the width direction, which is not conducive to accurate airflow injection. When the 230 width is too short, the spray width is not enough and the effect is not good.

The above are only the preferred embodiments of the present invention, and therefore do not limit the patent scope of the present invention. Any equivalent structural transformation or direct / indirect use of the description and drawings of the present invention under the inventive concept of the present invention All other related technical fields are included in the patent protection scope of the present invention.

Claims

A sweeping robot is characterized by comprising:

A chassis with a ground brush suction opening formed on the chassis;

A driving wheel, the driving wheel is mounted on the chassis, and is located on one side of the width direction of the floor brush suction port, and both ends of the floor brush suction port extend from the middle of the chassis to both sides of the chassis.
The sweeping robot according to claim 1, wherein the driving wheel is located on the rear side of the floor brush suction port.
The sweeping robot according to claim 1, wherein the floor brush suction port is elongated, and both ends thereof extend to the edge of the chassis.
The cleaning robot of claim 1, wherein a roller brush motor for driving the roller brush of the cleaning robot is installed directly above the chassis facing away from the roller brush.
The cleaning robot according to claim 1, wherein the dust cup of the cleaning robot is disposed at an edge of the front side of the chassis.
The sweeping robot according to claim 1, wherein the dust cup of the sweeping robot is made of a transparent material.
The cleaning robot according to claim 1, wherein the distance between the chassis on the front side of the floor brush suction port and the bottom of the driving wheel gradually increases from the floor brush suction port to the edge of the front side of the chassis .
The sweeping robot according to claim 1, wherein a side of the dust cup facing the floor brush suction port extends along a length of the floor brush suction port, and a side edge of the dust cup facing the front side of the chassis The edge of the front side of the chassis extends.
The cleaning robot according to claim 1, wherein an installation cavity for installing a roller brush of the cleaning robot is formed on the chassis, the installation cavity protrudes above the chassis, and the dust of the cleaning robot One side of the cup faces the side wall of the installation cavity, the side wall of the installation cavity is provided with a dust outlet, the side wall of the dust cup is provided with a dust suction port, and the dust outlet corresponds to the Vacuum port setting.
The sweeping robot according to claim 1, wherein the dust cup includes an ash accumulation cup and a separator provided in the ash accumulation cup, and the separator is detachably connected to the ash accumulation cup.
The cleaning robot according to claim 9, wherein the electric control board of the cleaning robot is provided with a side of the bottom of the installation cavity facing away from the roller brush, and the electric control board is along the length of the installation cavity Direction extends.
The sweeping robot according to claim 1, wherein a plurality of protrusions arranged at intervals are provided on the front side of the floor brush suction port, and a pressurizing groove is formed between two adjacent protrusions. The width of the booster tank is 6 ~ 15mm; and / or,

The width of the floor brush suction opening is 26-50 mm.
The sweeping robot according to claim 12, wherein the protrusion has a wind guide slope, and the distance between the wind guide slope and the chassis gradually increases from the front side of the chassis toward the ground suction port.
The cleaning robot according to claim 1, wherein the roller brush of the cleaning robot is installed in an installation cavity, the installation cavity is formed on the chassis, and the suction port of the cleaning brush is formed at an opening of the installation cavity The roller brush extends to both ends of the chassis along the ground brush suction port.
The sweeping robot according to claim 1, wherein the sweeping robot further includes a jet dusting structure, the jet dusting structure is installed on the chassis, the jet dusting structure has an air inlet The air inlet and the jet channel connecting the air inlet and the air outlet. The air inlet allows airflow to enter the jet channel. The air outlet is located in front of the floor brush suction port of the cleaning robot.
The sweeping robot according to claim 15, wherein the jet channel extends obliquely from the top of the front side of the chassis toward the direction of the floor brush suction port.
The sweeping robot according to claim 16, wherein the angle α between the jet channel and the vertical direction is 20 ~ 70 °.
The sweeping robot according to claim 15, wherein the cross-sectional area of the jet channel gradually decreases from the air inlet to the air outlet.
The sweeping robot according to claim 15, wherein the sweeping robot further includes a dust suction motor, an exhaust port of the dust suction motor communicates with the air inlet, and an air inlet of the dust suction motor and the floor brush The suction port is connected.
The sweeping robot according to claim 19, wherein the exhaust port and the air inlet are communicated by a hose;

The cleaning robot includes an installation cylinder for installing a rolling brush, a mounting column is provided on a side of the installation cylinder facing away from the rolling brush, and a circuit board of the cleaning robot is installed on the installation column;

The hose passes through the limit gap enclosed by the circuit board, the mounting post and the mounting tube.