Cleaning squeegee and cleaning robot

Abstract

The present invention belongs to the technical field of intelligent cleaning devices, and particularly relates to a cleaning squeegee and a cleaning robot. Among them, the cleaning squeegee is used for the cleaning robot, and the cleaning squeegee includes: a connecting portion having a first end and a second end, the first end of the connecting portion being used for mounting on the bottom of the cleaning robot; and a working portion having a first end and a second end, the first end of the working portion being connected to the second end of the connecting portion, the second end of the working portion being used for contacting the ground; a notch is provided at the connection between the first end of the working portion and the second end of the connecting portion, the notch being located on the side of the connection away from the advancing direction of the cleaning robot, and the working portion can be bent along the notch so that at least a part of the working portion abuts against the connecting portion. Applying this technical solution can solve the problem in the prior art that the squeegee used on the cleaning robot fails to scrape off wastewater or garbage on the ground cleanly.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent cleaning equipment, and in particular relates to a cleaning scraper and a cleaning robot. Background Art

[0002] In existing cleaning robots, the scraper bar is usually set at the bottom of the shell of the cleaning robot, behind the cleaning part of the cleaning robot. Since the ground is not flat, for example, for a tile floor, there are joints between tiles, and similarly, for a wooden floor, there are joints between wooden boards. During the cleaning process, the scraper bar is easily stuck at the joints and cannot pass through the joints. When the scraper bar forcibly passes through the joints, the scraper bar will bounce and no longer stick to the ground, causing liquid and garbage to remain on the ground, affecting the recovery rate of wastewater and garbage. Summary of the invention

[0003] The object of the present invention is to provide a cleaning scraper and a cleaning robot, aiming to solve the problem of using a scraper on the cleaning robot in the prior art to scrape away waste water or garbage on the unclean ground.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a cleaning scraper for a cleaning robot, the cleaning scraper comprising: a connecting part, the connecting part having a first end and a second end, the first end of the connecting part being used to be installed on the bottom of the cleaning robot; and a working part, the working part having a first end and a second end, the first end of the working part being connected to the second end of the connecting part, and the second end of the working part being used to contact the ground; a notch is provided at the connection between the first end of the working part and the second end of the connecting part, the notch is located on the side of the connection away from the forward direction of the cleaning robot, and the working part can be bent along the notch so that at least part of the working part abuts against the connecting part.

[0005] Optionally, the distance from the edge of the notch of the working part to the bottom of the notch in the horizontal direction is the notch depth B, and the distance from the edge of the notch of the working part to the surface of the connecting part in the vertical direction is the notch width D, then 0.45≤B / D≤0.7.

[0006] Optionally, the thickness of the connection along the horizontal direction is C, 0.5 mm ≤ C ≤ 1.5 mm.

[0007] Optionally, a height of the working part from the first end to the second end along the vertical direction is A, and the height A is greater than or equal to 0.5 mm to 1.5 mm above the ground clearance of the cleaning robot.

[0008] Optionally, an acute angle is formed between the length extension direction of the working portion and the ground.

[0009] Optionally, the connecting portion includes a connecting head section and a transition section. The first end of the connecting head section is used for mounting on the bottom of the cleaning robot. The second end of the connecting head section is connected to the first end of the transition section. The second end of the transition section is connected to the first end of the working portion, and the transition section extends obliquely downward in the advancing direction of the cleaning robot.

[0010] Optionally, the connecting head section, the transition section and the working portion are integrally formed structures made of materials with flexibility.

[0011] Optionally, at least one force-bearing step for bearing the force applied by the cleaning robot is formed on the transition section and / or the connecting head section, and the force-bearing step is arranged on the side of the transition section and / or the connecting head section facing away from the advancing direction of the cleaning robot.

[0012] According to another aspect of the present invention, a cleaning robot is provided. Specifically, the cleaning robot includes a housing and the cleaning squeegee as described above. The housing forms an inner cavity, and a mounting position is provided on the cavity wall of the inner cavity. The first end of the connecting portion is fixedly connected to the mounting position, and the working portion extends out of the inner cavity to contact the ground.

[0013] Optionally, the cleaning robot further includes a cleaning member assembled on the housing. The cleaning member is used for cleaning the ground. In the advancing direction of the cleaning robot, the cleaning squeegee is located behind the cleaning member.

[0014] Optionally, the cleaning member is a roller brush. The roller brush is assembled in the inner cavity and extends out of the inner cavity to roll and scrub the ground. The side of the cleaning squeegee facing the roller brush is set as an arc surface adapted to the outer contour of the roller brush, and the cleaning squeegee and the roller brush are arranged at intervals.

[0015] Optionally, the cleaning robot further includes a load-bearing member mounted on the cavity wall of the inner cavity. The side of the cleaning squeegee facing away from the cleaning member abuts against the load-bearing member.

[0016] The present invention has at least the following beneficial effects:

[0017] When the cleaning squeegee provided by the present invention is assembled on the cleaning robot, the first end of the connecting portion of the cleaning squeegee can be fixedly connected to the corresponding mounting position of the cleaning robot. The second end of the working portion of the cleaning squeegee extends out of the bottom of the cleaning robot to contact the ground. During the process of cleaning the ground, after mopping the ground, some waste water will remain on the ground, and some garbage will also be left uncleaned. Since the cleaning squeegee is provided, the remaining waste water and garbage can be scraped away. When the notch on the working portion is squeezed and reduced when encountering an external obstacle, when at least part of the edge of the notch on the working portion abuts against the surface of the connecting portion, at this time, the working portion bends backward by the maximum arc, and the working portion no longer continues to bend. While crossing the external obstacle, the ground is tightly pressed by the reaction force of the connecting portion on the working portion, and the working portion will not bounce from the ground, so as to scrape the ground clean. Brief Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of the cleaning squeegee in the normal state of the first embodiment of the present invention;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of the cleaning squeegee in the obstacle-crossing state of the first embodiment of the present invention;

[0021] Figure 3 It is a schematic labeling structure diagram of the cleaning squeegee in the first embodiment of the present invention;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the cleaning squeegee in the normal state of the second embodiment of the present invention;

[0023] Figure 5 It is a front view of the cleaning robot provided by the embodiment of the present invention;

[0024] Figure 6 It is a schematic ground structure diagram of the cleaning robot provided by the embodiment of the present invention;

[0025] Figure 7 It is a schematic structure diagram of the relative assembly position between the cleaning squeegee and the cleaning member in the cleaning robot provided by the embodiment of the present invention;

[0026] Figure 8 For Figure 7 The enlarged view at position F in

[0027] Among them, the reference numerals in the drawings:

[0028] 100, cleaning squeegee; 10, connecting head section; 20, transition section; 21, force-bearing step; 30, working part; 40, connection part; 41, notch; 200, cleaning robot; 210, housing; 211, installation position; 212, inner cavity; 220, cleaning member; 230, load-bearing member; 240, drive wheel; 250, universal wheel. Detailed Description of the Embodiments

[0029] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0031] In addition, the terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Definition: As Figure 3 shown in the plane rectangular coordinate system XOY, after the cleaning wiper is stably installed on the cleaning robot, the plane rectangular coordinate system XOY is established, and the cross-section of the cleaning wiper along the advancing direction of the cleaning robot is parallel to the plane where the rectangular coordinate system XOY is located. The direction parallel to the X-axis of the plane rectangular coordinate system XOY is defined as the horizontal direction, and the direction parallel to the Y-axis of the plane rectangular coordinate system XOY is defined as the vertical direction.

[0034] As Figures 1 to 3As shown, the first embodiment of the present invention provides a cleaning scraper bar 100, which is used to be assembled at the rear end position of the cleaning member 220 of the cleaning robot 200. When the cleaning robot 200 cleans the ground, the cleaning robot 200 walks on the ground, and the places it passes by are cleaned by the cleaning member 220. However, there will be some waste water or garbage left on the ground after being cleaned by the cleaning member 220. At this time, the residual waste water or garbage can be scraped away by the cleaning scraper bar 100. Specifically, the cleaning scraper bar 100 includes a connecting portion and a working portion 30, the connecting portion has a first end and a second end, the first end of the connecting portion is used to be installed on the bottom of the cleaning robot 200 (that is, the first end of the connecting portion is connected and fixed on the installation position 211 of the cleaning robot 200), and similarly, the working portion 30 also has a first end and a second end, the first end of the working portion 30 is connected to the second end of the connecting portion, and the second end of the working portion 30 is used to contact the ground. Among them, a notch 41 is provided at the connection 40 between the first end of the working part 30 and the second end of the connecting part. The notch 41 is located on the side of the connection 40 away from the forward direction of the cleaning robot 200. In the forward direction of the cleaning robot 200, when the working part 30 encounters an external obstacle, the working part 30 can bend along the notch 41 so that at least part of the working part 30 is pressed against the connecting part.

[0035] Furthermore, the connecting portion of the cleaning scraper strip 100 includes a connecting head section 10 and a transition section 20, the first end of the connecting head section 10 is used to be installed on the bottom of the cleaning robot 200 (that is, the first end of the connecting head section 10 is connected and fixed on the mounting position 211 of the cleaning robot 200), so that the entire cleaning scraper strip 100 can be stably installed on the cleaning robot 200, the first end of the transition section 20 is connected to the second end of the connecting head section 10, the second end of the transition section 20 extends toward the bottom of the cleaning robot 200, the length extension direction of the transition section 20 forms an obtuse angle with the forward direction of the cleaning robot 200 (that is, the transition section 20 extends obtusely downward in the forward direction of the cleaning robot 200), the first end of the working portion 30 is connected to the second end of the transition section 20, and the second end of the working portion 30 is used to rest against the ground.

[0036] After the cleaning strip 100 is assembled to the housing 210, Figure 3As shown, the height of the working part 30 of the cleaning squeegee 100 from the first end to the second end in the vertical direction is A, and this height A is greater than or equal to 0.5 mm to 1.5 mm longer than the ground clearance distance of the bottom of the cleaning robot 200 from the horizontal floor (the height A is longer than the ground clearance distance of the bottom of the cleaning robot 200 from the horizontal floor, but the extended part does not exceed 1.5 mm), for example, 0.5 mm, 0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm. Thus, when the cleaning robot 200 is placed on the ground, the second end of the working part 30 touches the ground. At this time, the working part 30 is pre-tightened by the abutting extrusion of the ground, so that it can tightly abut against the ground.

[0037] When assembling the cleaning squeegee 100 provided by the present invention on the cleaning robot 200, it is only necessary to connect and fix the first end of the connecting head section 10 of the cleaning squeegee 100 to the corresponding installation position 211 of the cleaning robot 200. The second end of the working part 30 of the cleaning squeegee 100 extends out of the bottom of the cleaning robot 200 and contacts the ground. During the process of cleaning the ground, after the cleaning member 220 wipes the ground, some water in the wet cleaning member 220 will remain on the ground, and some garbage will also be left uncleaned completely. Since the cleaning squeegee 100 is assembled at the rear end position of the cleaning member 220, the remaining waste water and garbage are scraped away. When the notch 41 is being compressed and reduced during the process that the working part 30 encounters an external obstacle, when at least part of the edge of the notch 41 of the working part 30 abuts against the surface of the transition section 20, at this time, the working part 30 bends backward by the maximum arc, and the working part 30 no longer continues to bend. While passing over the external obstacle, the reaction force of the transition section 20 against the working part 30 is used to tightly press against the ground, so as to scrape the ground clean.

[0038] In the first embodiment, the length extension direction of the working part 30 forms an acute angle with the ground (the angle opening of the acute angle formed by the working part 30 and the ground faces the forward direction of the cleaning robot 200). Specifically, when the working part 30 encounters an external obstacle, the notch 41 is compressed and reduced, so that the working part 30 can smoothly avoid the external obstacle and continue to scrape the ground forward. As Figure 3 shown, the distance from the edge of the notch 41 of the working part 30 along the horizontal direction to the bottom of the notch 41 is the notch depth B (taking the maximum depth), and the distance from the edge of the notch 41 of the working part 30 along the vertical direction to the surface of the transition section 20 is the notch width D (taking the maximum width), then 0.45 ≤ B / D ≤ 0.7. And the thickness of the connection part 40 between the working part 30 and the transition section 20 along the horizontal direction is 0.5 mm to 1.5 mm, as Figure 3 shown, for example, the thickness is equal to 0.5 mm, 0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm.

[0039] Preferably, the connector section 10, the transition section 20, and the working section 30 of the cleaning squeegee 100 in the first embodiment are integrally formed of a material with flexibility. Preferably, it is integrally injection-molded with a material having an appropriate softness and hardness, such as rubber or silica gel.

[0040] As Figures 1 to 3 shown, in order to ensure that the cleaning squeegee 100 mounted on the housing 210 remains stably assembled during the forward movement of the cleaning robot and avoid deviation, at least one force-bearing step 21 for bearing the force applied by the cleaning robot 200 is formed on the transition section 20 and / or the connector section 10. The force-bearing step 21 is provided on the side of the transition section 20 and / or the connector section 10 facing away from the forward direction of the cleaning robot 200. In fact, the connection between the transition section 20 and the connector section 10 is set in a turning shape to form a force-bearing step 21, and a force-bearing step 21 is provided at the middle position of the transition section 20.

[0041] As Figure 4 shown, it shows a schematic structural view of the cleaning squeegee 100 in the second embodiment of the present invention. Compared with the cleaning squeegee 100 in the first embodiment, the cleaning squeegee 100 in the second embodiment has the following differences. In the second embodiment, the connector section 10, the transition section 20, and the working section 30 of the cleaning squeegee 100 are three independent components, which are pre-formed separately. Then, the first end of the transition section 20 is connected to the connector section 10, and then the working section 30 is connected to the second end of the transition section 20, so as to be assembled into a complete cleaning squeegee. Moreover, the connector section 10 and the transition section 20 can be made of a rigid hard material, such as iron or aluminum, or can be made of a material with flexibility, while the working section 30 must be made of a material with flexibility. Additionally, in other feasible embodiments, the connecting portion formed by the connector section 10 and the transition section 20 is integrally formed of the same material, and the working section 30 is still a separate independent component. Connecting the first end of the working section 30 to the second end of the transition section 20 can assemble the complete cleaning squeegee 100.

[0042] Compared with the cleaning squeegee 100 in the first embodiment, the cleaning squeegee 100 in the second embodiment has the same structure as the above except for the different structures, so it will not be described in detail here.

[0043] According to another aspect of the present invention, a cleaning robot 200 is provided, as Figures 5 to 8As shown, a schematic structural diagram of the cleaning robot 200 is shown. Specifically, the cleaning robot 200 includes a housing 210, a cleaning member 220, and the aforementioned cleaning squeegee 100. The cleaning member 220 is assembled on the housing 210. In fact, the cleaning member 220 can be a mop (for a mopping robot), or the cleaning member 220 can be a broom (for a sweeping robot). The cleaning robot 200 of the present invention preferably has the cleaning member 220 as a broom. The housing 210 forms an inner cavity 212, and an installation position 211 is provided on the cavity wall of the inner cavity 212. The connecting head section 10 is connected and fixed to the installation position 211, and the working part 30 extends out of the inner cavity 212. In the forward direction of the cleaning robot 200, the cleaning squeegee 100 is located behind the cleaning member 220.

[0044] When the cleaning squeegee 100 provided by the present invention is assembled on the cleaning robot 200, the first end of the connecting head section 10 of the cleaning squeegee 100 can be connected and fixed to the corresponding installation position 211 of the cleaning robot 200. The second end of the working part 30 of the cleaning squeegee 100 extends out of the bottom of the cleaning robot 200 and contacts the ground. During the process of cleaning the ground, after the cleaning member 220 mops the ground, some water in the wet cleaning member 220 will remain on the ground, and some garbage will also be left uncleaned. Since the cleaning squeegee 100 is assembled at the rear end position of the cleaning member 220, the remaining wastewater and garbage are scraped away. When the notch 41 is compressed and reduced during the process that the working part 30 encounters an external obstacle, when the edge of the notch 41 of the working part 30 abuts against the surface of the transition section 20, at this time, the working part 30 bends backward by the maximum arc, and the working part 30 no longer continues to bend. While crossing the external obstacle, the reaction force of the transition section 20 on the working part 30 is used to press tightly against the ground, so as to scrape the ground clean.

[0045] As Figure 6 shown, the cleaning member 220 is a rotary brush (the rotary brush can mop the ground with the surface of the mop, or sweep the ground with the surface of the brush). The rotary brush is assembled in the inner cavity 212 and extends out of the inner cavity 212 to roll and wipe the ground. One side of the cleaning squeegee 100 facing the rotary brush is set as an arc surface adapted to the outer contour of the rotary brush, and the cleaning squeegee 100 and the rotary brush are arranged at intervals. Driving wheels 240 are respectively arranged near both ends of the rotary brush to provide forward power. And, a universal wheel 250 is arranged at the front end of the housing 210 in the forward direction. When there is a speed difference between the two driving wheels 240, the universal wheel 250 automatically adjusts the direction to turn according to the speed difference.

[0046] As Figure 7 and Figure 8As shown, the cleaning robot 200 also includes a load-bearing member 230, which is installed on the cavity wall of the inner cavity 212, and the side of the cleaning strip 100 facing away from the cleaning member 220 abuts against the load-bearing member 230. On the cleaning strip, the connection between the transition section 20 and the connecting head section 10 is set in a turning shape to become a load-bearing step 21, and a load-bearing step 21 is set in the middle position of the transition section 20. Correspondingly, two matching steps are set on the load-bearing member 230 corresponding to the two load-bearing steps 21, and the two load-bearing steps 21 respectively engage and abut with the two matching steps. In this way, when the cleaning robot 200 moves forward, the load-bearing member 230 applies force to the cleaning strip 100, so that the cleaning strip 100 is stably stressed and does not deviate.

[0047] According to another aspect of the present invention, a cleaning system (not shown) is provided. Specifically, the cleaning system includes a cleaning base station (not shown) and the aforementioned cleaning robot 200, the cleaning base station is used to clean the cleaning member 220 of the cleaning robot 200, and, after the cleaning robot 200 completes the work of cleaning the floor, the cleaning base station is used to store the cleaning robot 200. In fact, the cleaning base station can also be used to clean the cleaning member 220 of the cleaning robot 200, because the floor area cannot be cleaned by the cleaning robot 200 at one time, the cleaning robot 200 needs to go back and forth to the cleaning base station multiple times, and each time it enters the cleaning base station, the cleaning base station will clean the cleaning member 220, and then the cleaning robot 200 will leave the cleaning base station again and continue to clean the floor, and so on and so forth until the cleaning robot 200 completely cleans the floor.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning scraper for a cleaning robot, It is characterized in that The cleaning strip comprises: A connecting portion, the connecting portion having a first end and a second end, the first end of the connecting portion being used to be mounted on the bottom of the cleaning robot, the connecting portion comprising a transition section, the transition section having a first end and a second end, the second end of the transition section being the second end of the connecting portion; and A working portion, the working portion having a first end and a second end, the first end of the working portion being connected to the second end of the transition section, and the second end of the working portion being used to contact the ground; A notch is provided at the connection between the first end of the working part and the second end of the transition section, the notch is located at a side of the connection away from the forward direction of the cleaning robot, and the working part can be bent along the notch so that at least part of the working part abuts against the transition section; When the notch is squeezed and shrunk when the working part encounters an external obstacle, when the edge of the notch of the working part at least partially rests on the surface of the transition section, the working part bends backward with a maximum arc, and at the same time, the reaction force of the transition section on the working part is used to press against the ground while crossing the obstacle. The length extension direction of the working part forms an acute angle with the ground, wherein the acute angle formed by the working part and the ground opens toward the forward direction of the cleaning robot.

2. The cleaning strip according to claim 1, It is characterized in that The distance from the edge of the notch of the working part to the bottom of the notch in the horizontal direction is the notch depth B, and the distance from the edge of the notch of the working part to the surface of the connecting part in the vertical direction is the notch width D, then 0.45≤B / D≤0.

7.

3. The cleaning strip according to claim 1, It is characterized in that The thickness of the connection along the horizontal direction is C, 0.5mm≤C≤1.5mm.

4. The cleaning strip according to claim 1, It is characterized in that The height of the working part from the first end to the second end along the vertical direction is A, and the height A is greater than or equal to 0.5 mm to 1.5 mm of the ground clearance of the cleaning robot.

5. The cleaning strip according to claim 1, It is characterized in that The connecting part also includes a connecting head section, a first end of the connecting head section is used to be installed on the bottom of the cleaning robot, a second end of the connecting head section is connected to the first end of the transition section, the second end of the transition section is connected to the first end of the working part, and the transition section extends obliquely downward in the forward direction of the cleaning robot.

6. The cleaning strip according to claim 5, It is characterized in that The connecting head section, the transition section and the working portion are integrally formed using a flexible material.

7. The cleaning strip according to claim 5, It is characterized in that At least one force-bearing step for bearing the force applied by the cleaning robot is formed on the transition section and / or the connecting head section, and the force-bearing step is arranged on a side of the transition section and / or the connecting head section that is away from the forward direction of the cleaning robot.

8. A cleaning robot, It is characterized in that The cleaning robot comprises a housing and the cleaning bar according to any one of claims 1 to 7, wherein the cleaning bar is mounted on the bottom of the housing.

9. The cleaning robot according to claim 8, It is characterized in that The cleaning robot further comprises a cleaning member, which is mounted on the housing and is used for cleaning the floor. In the forward direction of the cleaning robot, the cleaning scraper is located behind the cleaning member.

10. The cleaning robot according to claim 9, It is characterized in that The shell forms an inner cavity; the cleaning member is a roller brush, which is assembled in the inner cavity and extends out of the inner cavity to roll and rub the ground. The side of the cleaning scraper facing the roller brush is arranged to be an arc surface adapted to the outer contour of the roller brush, and the cleaning scraper is spaced apart from the roller brush.

11. The cleaning robot according to claim 10, It is characterized in that The cleaning robot further comprises a load-bearing member, wherein the load-bearing member is mounted on the cavity wall of the inner cavity, and a side of the cleaning strip facing away from the cleaning member abuts against the load-bearing member.

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