Corner auxiliary cleaning mechanism and cleaning robot capable of reducing cleaning dead angles

Abstract

The utility model discloses a corner auxiliary cleaning mechanism and a cleaning robot capable of reducing cleaning dead corners, and relates to the technical field of intelligent cleaning equipment. The corner auxiliary cleaning mechanism is used for the cleaning robot, the cleaning robot wipes dust on a to-be-cleaned face through a cleaning rotary disc arranged at the bottom of the cleaning robot, and the corner auxiliary cleaning mechanism comprises a rotatable cylindrical body and a wiping part installed on the cylindrical body. The cylindrical body is configured to be arranged at the bottom corner of the cleaning robot and drive the wiping component to rotate when rotating so as to wipe the corner area which cannot be touched by the cleaning rotary disc due to blocking of the peripheral frame of the to-be-cleaned face. The corner auxiliary cleaning mechanism is mounted on the cleaning robot, and can clean corner areas of window glass, so that cleaning dead corners are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent cleaning equipment, and particularly relates to a corner auxiliary cleaning mechanism and a cleaning robot for reducing cleaning dead angles. Background Art

[0002] Chinese patent document CN219895552U discloses a window cleaning robot, which includes a cleaning turntable arranged at the bottom of the fuselage. These cleaning turntables are rotated by connecting a driving motor to wipe the surface of the window glass. However, since the rotation coverage area of the cleaning turntable is circular, when the robot moves to the corner of the window glass, the circular movement track of the cleaning turntable cannot fully adapt to the right-angle edge of the window, resulting in cleaning dead angles in the corner area. Summary of the Utility Model

[0003] One of the purposes of the utility model is to provide a corner auxiliary cleaning mechanism capable of cleaning the corner area of the window glass.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: a corner auxiliary cleaning mechanism for a cleaning robot, and the cleaning robot wipes the dust on the surface to be cleaned through a cleaning turntable arranged at its bottom. The corner auxiliary cleaning mechanism includes a rotatable cylindrical body and a wiping component installed on the cylindrical body. The cylindrical body is configured to be arranged at the bottom corner of the cleaning robot and drive the wiping component to rotate when it rotates, so as to wipe the corner area that cannot be reached by the cleaning turntable due to the obstruction of the peripheral border of the surface to be cleaned.

[0005] Further, the above corner auxiliary cleaning mechanism further includes a downwardly protruding support installed at the bottom of the cleaning robot. The cylindrical body at least includes a needle roller bearing installed on the support, and the wiping component is detachably installed on the cylindrical body.

[0006] Wherein, the bottom end position of the wiping component is lower than the bottom end position of the cylindrical body.

[0007] Further, the wiping component is annularly sleeved on the cylindrical body. For example, the wiping component is a ring sleeve component made of PVC foam material.

[0008] Further, a contact part that can abut against the bottom of the cylindrical body and contact the surface to be cleaned is arranged at the bottom of the wiping component.

[0009] Further, the wiping component is annularly plugged into the cylindrical body.

[0010] Further, the wiping component is fixed on the cylindrical body by a thread.

[0011] Further, the bottom of the wiping component is provided with bristles or scraping blades.

[0012] Another object of the present utility model is to provide a cleaning robot capable of cleaning the corner areas of window glass to reduce cleaning dead angles. The cleaning robot has a body with a rectangular or square outer contour. A cleaning turntable is provided at the bottom of the body, and corner auxiliary cleaning mechanisms are provided at the four corners of the bottom of the body. The corner auxiliary cleaning mechanisms are at least configured to wipe the corner areas that cannot be reached by the cleaning turntable due to the obstruction of the outer frame of the surface to be cleaned when the cleaning robot reaches the corners of the surface to be cleaned.

[0013] Furthermore, the cylindrical body or the wiping member is in contact with the cleaning turntable and rotates driven by it when the cleaning turntable rotates.

[0014] The corner auxiliary cleaning mechanism of the present utility model is installed at the bottom corners of the cleaning robot. Driven by the cylindrical body to rotate the wiping member, when the cleaning robot reaches the corners of the surface to be cleaned, the wiping member can wipe the corner areas that cannot be reached by the cleaning turntable due to the obstruction of the outer frame of the surface to be cleaned. This can not only expand the cleaning coverage range of the cleaning robot and improve the cleaning efficiency, but also wipe the corner areas that cannot be reached by the cleaning turntable, thereby reducing cleaning dead angles such as window corners and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the cleaning robot;

[0016] Figure 2 is a front view of the cleaning robot;

[0017] Figure 3 is a perspective view of the corner auxiliary cleaning mechanism and the support;

[0018] Figure 4 is an exploded view of the corner auxiliary cleaning mechanism and the support.

[0019] In the figures:

[0020] 1 - body 2 - cleaning turntable

[0021] 3 - corner auxiliary cleaning mechanism 3a - cylindrical body

[0022] 3b - wiping member 4 - protrusion

[0023] 5 - support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to enable those skilled in the art to more clearly understand the concept of the present utility model, the following further description is made in conjunction with the embodiments and the drawings.

[0025] The cleaning robot of this embodiment mainly includes a cleaning turntable 2, a suction module, a driving module, a controller, and a body 1. According to needs, the number of cleaning turntables 2 can be two or more. In this embodiment, the number of them is four for specific illustration. Generally speaking, a negative pressure adsorption cavity is formed at the bottom of the body 1 for adsorbing the whole cleaning robot on the surface to be cleaned. In this embodiment, a cavity is arranged inside the cleaning turntable 2. Through connection with the suction module, the air in the cavity can be extracted, thereby forming a negative pressure adsorption cavity, generating a negative pressure adsorption force, and adsorbing the cleaning robot on the surface to be cleaned. The aforementioned surface to be cleaned includes but is not limited to the surface of a plate member (such as a floor, a glass window, a glass curtain wall, etc.). This embodiment mainly takes the surface to be cleaned as a glass window for illustration. The above suction module includes but is not limited to a negative pressure fan or a vacuum pump. In addition, since the air duct and control circuit of the cleaning robot involved in this embodiment are similar to those of existing cleaning robots, for the purpose of simplifying the description, the above content will not be elaborated further.

[0026] The cleaning robot of this embodiment can achieve a twisting movement by alternately rotating the cleaning turntable 2, or can achieve a straight-line movement by adding a walking part. The walking part can be a crawler structure driven by a driving wheel, or a walking wheel driven by a motor. It can be specifically selected according to needs and will not be elaborated here.

[0027] From Figure 1 It can be seen that the overall shape of the cleaning robot of this embodiment adopts a square (rectangular or square) outer contour. Of course, this design can be adjusted to other shapes according to needs. In this embodiment, four cleaning turntables 2 are arranged at the bottom of the body 1. When the cleaning turntables 2 are adsorbed on the glass surface, the cleaning turntables 2 can be driven to rotate by the driving module to wipe and clean the glass surface.

[0028] The following takes a relatively common square glass window with a frame as an example for specific illustration.

[0029] Since the shape of the cleaning robot is square, and the rotation coverage area of the cleaning turntable 2 is circular, when the robot moves to the corner of the square glass, this corner area will not be touched by the cleaning turntable 2 (equivalent to this corner area not being covered by the rotation coverage area of the cleaning turntable 2), making the corner area of the glass a cleaning dead angle. Different from traditional cleaning robots, in this embodiment, corner auxiliary cleaning mechanisms 3 are arranged at the four corners of the bottom of the body 1. Usually, one corner auxiliary cleaning mechanism 3 is arranged at each of the four corners of the bottom of the body 1. See Figure 1 、 2When the cleaning robot performs cleaning work on the glass surface, the corner auxiliary cleaning mechanism 3 can wipe the area outside the rotation trajectory of the cleaning turntable 2 (i.e., outside the rotation coverage area of the cleaning turntable 2), which can expand the cleaning coverage area of the cleaning robot and improve the cleaning efficiency. Moreover, when the cleaning robot reaches the corner of the glass surface, the corner auxiliary cleaning mechanism 3 can also wipe the corner area that cannot be reached by the cleaning turntable 2 due to the obstruction of the outer frame of the surface to be cleaned (i.e., the glass frame), thereby reducing cleaning dead corners such as window corners and improving the cleaning effect.

[0030] Generally speaking, the corner auxiliary cleaning mechanism 3 can rely on the movement of the machine to wipe the glass surface. However, in order to further improve the cleaning efficiency and cleaning effect, the corner auxiliary cleaning mechanism 3 can be set to be rotatable relative to the body 1. Specifically, the corner auxiliary cleaning mechanism 3 includes a rotatable cylindrical body 3a and a wiping member 3b mounted on the cylindrical body 3a. The wiping member 3b is driven to rotate by the cylindrical body 3a to wipe the glass surface. Among them, the cylindrical body 3a can be driven to rotate by a driving motor, thereby driving the wiping member 3b to rotate; alternatively, the cylindrical body 3a or the wiping member 3b can rotate by moving along the glass frame; or the rotating cleaning turntable 2 is used to drive the cylindrical body 3a or the wiping member 3b to rotate.

[0031] In this embodiment, the last method is selected, that is, the rotating cleaning turntable 2 is used to drive the cylindrical body 3a or the wiping member 3b to rotate. Specifically, the cylindrical body 3a or the wiping member 3b is in contact with the cleaning turntable 2 and is driven to rotate when the cleaning turntable 2 rotates. Compared with other methods, the method adopted in this embodiment does not require additional driving elements, saves costs, and helps to simplify the structure. At the same time, since there is no need to move the machine along the glass frame, the external factor of the glass frame is reduced, and the movement stability of the machine can be better.

[0032] In this embodiment, the corner auxiliary cleaning mechanism 3 further includes a support 5, which is installed at the four peripheral corners of the bottom of the machine body 1 and protrudes downward to form a protruding portion 4. The protruding portion 4 can be cylindrical or tubular. Among them, the wiping member 3b can be annular, for example, it can be a ring sleeve member made of PVC foam material. The wiping member 3b is usually sleeved on the cylindrical body 3a and extends beyond the bottom of the cylindrical body 3a, that is, the bottom position of the wiping member 3b is lower than the bottom position of the cylindrical body 3a. The bottom of the wiping member 3b is used to contact the glass surface for wiping it. The wiping member 3b can be tightly sleeved on the cylindrical body 3a or rotatably sleeved on the cylindrical body 3a. The cylindrical body 3a can be installed on the protruding portion 4 with a gap to achieve relative rotation between the two. The cylindrical body 3a can also be fixedly installed on the protruding portion 4, and then the wiping member 3b is rotatably sleeved on the cylindrical body 3a, which can also achieve the rotation of the wiping member 3b. The connection methods between these components include but are not limited to the above methods, and appropriate methods can be selected according to specific requirements in actual applications.

[0033] In this embodiment, the cylindrical body 3a at least includes a needle roller bearing installed on the protruding portion 4 of the support 5, and the wiping member 3b is installed on the cylindrical body 3a in a detachable manner. Taking the cylindrical body 3a as a needle roller bearing as an example, as Figure 3 、 4 shown, the annular wiping member 3b is hoop-sleeved on the needle roller bearing, and the needle roller bearing is then installed on the protruding portion 4, so that the wiping member 3b can rotate on the protruding portion 4 through the needle roller bearing. Among them, the contact methods between the cylindrical body 3a or the wiping member 3b and the cleaning turntable 2 include but are not limited to extrusion contact (i.e., tight fitting), gear meshing, etc., and appropriate methods can be reasonably selected according to specific requirements in actual applications. Taking the contact between the wiping member 3b and the cleaning turntable 2 as an example, refer to Figure 1 、 2 , the cleaning turntable 2 is driven to rotate by the driving module, and then drives the wiping member 3b in contact with it to rotate, so as to realize the wiping and cleaning of the glass surface. During use, the side of the wiping member 3b is usually in tight fit with the side of the cleaning turntable 2, and sufficient friction is generated between the two through appropriate contact pressure, which can ensure that the wiping member 3b can be driven to rotate together when the cleaning turntable 2 rotates. It is worth mentioning that in this embodiment, the rotating cleaning turntable 2 is used to drive the wiping member 3b (equivalent to a follower) to rotate together, so that the cleaning turntable 2 and the wiping member 3b can work simultaneously to clean the glass together, thereby improving the cleaning efficiency and cleaning effect.

[0034] For the convenience of disassembly, installation and replacement, the support 5 can be installed on the machine body 1 by means of snap connection, as can be seen in Figures 1-4。The needle roller bearing can also be fixed on the convex part 4 by a snap. In order to increase the contact area between the annular wiping member 3b and the glass surface, a contact part that abuts against the bottom of the cylindrical body 3a and contacts the glass surface can be provided at the bottom of the wiping member 3b, and this contact part can be a cleaning retaining ring or a cleaning retaining piece. In addition, the annular wiping member 3b can not only be sleeved on the cylindrical body 3a, but also be installed on the cylindrical body 3a by threads (including internal threads and external threads) to facilitate disassembly, assembly and replacement. Moreover, the wiping member 3b can not only be an annular member, but also be an annular plug-shaped member, and the annular plug-shaped wiping member 3b can be fixed by being squeezed and inserted into the cylindrical body 3a. Also, bristles or rubber wiper blades can be provided at the bottom of the wiping member 3b to improve the cleaning ability.

[0035] In order to realize the boundary detection of the cleaning robot, an infrared sensor for detecting the glass surface to judge whether the machine reaches the glass boundary can also be provided at the support 5. The infrared sensor can be installed in the convex part 4 of the cylindrical structure, so that the infrared sensor can pass through the convex part 4 to detect the glass surface. Of course, the wiping member 3b is also annular (a ring-shaped cleaning retaining ring can also be provided at its bottom end), which can avoid interfering with the detection of the infrared sensor. In addition, a vertical notch can be provided at the end of the convex part 4 of the cylindrical structure to facilitate the easier installation of the cylindrical body 3a on the convex part 4.

[0036] The above embodiments are the preferred implementation schemes of the present utility model, and any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. An auxiliary cleaning mechanism for corners, used for a cleaning robot, wherein the cleaning robot wipes dust on the surface to be cleaned by means of a cleaning turntable (2) arranged at the bottom thereof, characterized in that: The corner auxiliary cleaning mechanism comprises a rotatable cylindrical body (3a) and a wiping component (3b) mounted on the cylindrical body (3a); the cylindrical body (3a) is configured to be arranged at the bottom corner of the cleaning robot and to drive the wiping component (3b) to rotate when the cylindrical body (3a) rotates, so as to wipe the corner area that cannot be reached by the cleaning turntable (2) due to the obstruction of the peripheral frame of the surface to be cleaned.

2. The corner auxiliary cleaning mechanism according to claim 1, characterized in that: It also comprises a downwardly protruding support (5) mounted on the bottom of the cleaning robot, the cylindrical body (3a) comprises at least one needle bearing mounted on the support (5), and the wiping component (3b) is detachably mounted on the cylindrical body (3a).

3. The corner auxiliary cleaning mechanism according to claim 1 or 2, characterized in that: The wiping component (3b) is annularly sleeved on the cylindrical body (3a).

4. The corner auxiliary cleaning mechanism according to claim 3, characterized in that: The bottom of the wiping component (3b) is provided with a contact portion which can abut against the bottom of the cylindrical body (3a) and contact the surface to be cleaned.

5. The corner auxiliary cleaning mechanism according to claim 1 or 2, characterized in that: The wiping component (3b) is in the shape of an annular plug and is inserted into the cylindrical body (3a).

6. The corner auxiliary cleaning mechanism according to claim 1 or 2, characterized in that: The wiping component (3b) is fixed to the cylindrical body (3a) via threads.

7. The corner auxiliary cleaning mechanism according to claim 1 or 2, characterized in that: The bottom of the wiping component (3b) is provided with bristles or a scraper.

8. A cleaning robot for reducing cleaning dead angles, comprising a body (1) with a rectangular or square outer contour, a cleaning turntable (2) being arranged at the bottom of the body (1), and characterized in that: The four corners of the bottom of the body (1) are provided with corner auxiliary cleaning mechanisms as described in any one of claims 1 to 7, and the corner auxiliary cleaning mechanisms (3) are at least configured to wipe the corner areas that cannot be reached by the cleaning turntable (2) due to the obstruction of the outer frame of the surface to be cleaned when the cleaning robot reaches the corners of the surface to be cleaned.

9. The cleaning robot for reducing cleaning blind spots according to claim 8, characterized in that: The cylindrical body (3a) or the wiping component (3b) is in contact with the cleaning turntable (2) and is driven by the cleaning turntable (2) to rotate when the cleaning turntable (2) rotates.

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