Window cleaning machine

Abstract

The utility model provides a window cleaning machine. The window cleaning machine comprises a main machine; the mounting base is arranged on the host; the cleaning disc is arranged on the mounting base and is used for cleaning a surface to be cleaned; and the locking mechanism is arranged on the mounting base and / or the cleaning disc and is used for limiting the displacement of the cleaning disc on the mounting base in any direction. According to the scheme, the cleaning disc and the main machine are locked through the locking mechanism, stable connection between the cleaning disc and the main machine is ensured, the situation that the cleaning disc falls off or is separated due to vibration or improper operation in the cleaning process is prevented, and therefore possible safety accidents are avoided, and the window cleaning machine is more reliable, efficient and convenient to use in the using process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a window cleaning machine. BACKGROUND

[0002] With the development of science and technology and the improvement of living standards, people's requirements for the quality of life are getting higher and higher, and intelligent and efficient window cleaning machines are more and more favored by users. A household window cleaning machine is a cleaning tool specially designed for household users, mainly used for cleaning windows and glass surfaces. The working principle of the household window cleaning machine is to clean the surface of the window by using a cleaning disc to clean the surface of the window.

[0003] The existing window cleaning machine is roughly divided into a main machine and a detachable cleaning disc assembly, which may cause unstable installation of the cleaning disc assembly. Due to the unstable installation of the cleaning disc assembly, the cleaning disc assembly is easily separated from the machine body when subjected to external impact, resulting in the cleaning disc assembly falling off and high-altitude falling objects, which is prone to cause safety accidents. CONTENT OF THE INVENTION

[0004] Therefore, the present application provides a window cleaning machine, and the specific solutions are as follows:

[0005] A window cleaning machine comprises:

[0006] a main machine;

[0007] a mounting base arranged on the main machine;

[0008] a cleaning disc arranged on the mounting base and used for cleaning a surface to be cleaned;

[0009] a locking mechanism arranged on the mounting base and / or the cleaning disc and used for limiting displacement of the cleaning disc in any direction on the mounting base.

[0010] In some embodiments, the locking mechanism comprises a main locking portion and a slave locking portion, the main locking portion is arranged on one of the cleaning disc and the mounting base, the slave locking portion is arranged on the other one of the cleaning disc and the mounting base, and the main locking portion and the slave locking portion are locked with each other to limit the displacement of the cleaning disc in any direction on the mounting base.

[0011] In some embodiments, the main locking portion comprises a flexible locking piece, and the slave locking portion is provided with a locking position.

[0012] The flexible locking piece is used for flexible compression when the cleaning disc is mounted on the mounting base, reset after the cleaning disc is mounted on the mounting base, and locked on the locking position to achieve locking with the locking position.

[0013] In some embodiments, the flexible locking member is provided with a guide slope, which is used to guide the movement of the cleaning disc when the cleaning disc is installed on the mounting base, so that the flexible locking member is flexibly compressed.

[0014] In some embodiments, an unlocking part is further included, which is connected to the flexible locking member and / or the locking position, and is used to separate the flexible locking member from the locking position.

[0015] In some embodiments, the unlocking part includes a plurality of unlocking members, which are arranged in intervals or integrally.

[0016] In some embodiments, part of the structure of the unlocking member is exposed on the outer surface of the main machine and / or the cleaning disc.

[0017] In some embodiments, a locking groove is formed on the locking position, and the flexible locking member is locked with the locking groove, so as to limit the displacement of the cleaning disc in any direction on the mounting base.

[0018] In some embodiments, the guide slope is used to move along the locking groove when the flexible locking member is reset, so that the flexible locking member is locked with the locking groove.

[0019] In some embodiments, a walking disc is further included, which is arranged on the main machine and is used to drive the window cleaning machine to run.

[0020] Advantages:

[0021] The present application provides a window cleaning machine, which locks the cleaning disc and the main machine through a locking mechanism, ensures the stable connection between the cleaning disc and the main machine, prevents the cleaning disc from falling off or separating due to vibration or improper operation during cleaning, thereby avoiding possible safety accidents, and makes the window cleaning machine more reliable, efficient and convenient during use. Locking the cleaning disc and the main machine can also increase the stability of the overall structure of the window cleaning machine, so that the window cleaning machine is more stable during cleaning and is not easy to shake or tilt, thereby improving the cleaning effect and work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is an overall structure explosion view of the window cleaning machine in the present application;

[0023] Figure 2 is an example structure diagram of the mounting base in the present application;

[0024] Figure 3 is a cross-sectional view of the mounting base in the present application along A-A;

[0025] Figure 4is a three-dimensional example of a cleaning disc in the present application;

[0026] Figure 5 is a three-dimensional example of a cleaning disc in the present application Figure 4 is a front view of a cleaning disc in the present application;

[0027] Figure 6 is a cross-sectional view of a cleaning disc in the present application;

[0028] Figure 7 is a three-dimensional example of another cleaning disc in the present application;

[0029] Figure 8 is a schematic view of a locking mechanism in the present application.

[0030] Reference signs: 1 - main machine; 2 - cleaning disc; 3 - cleaning piece; 4 - locking mechanism; 5 - negative pressure channel; 6 - adsorption channel; 11 - mounting base; 41 - telescopic piece; 42 - elastic piece; 43 - fixing piece; 44 - locking groove; 45 - guide inclined surface; 111 - blocking structure; a - first direction. DETAILED DESCRIPTION

[0031] In the following, various embodiments of the present disclosure will be described more fully. The present disclosure can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit various embodiments of the present disclosure to the specific embodiments disclosed herein, but the present disclosure should be understood to cover all adjustments, equivalents and / or alternatives falling within the spirit and scope of various embodiments of the present disclosure.

[0032] The present disclosure discloses a window cleaning machine, which locks a cleaning disc in a machine body by means of a locking assembly, realizes portable assembly of the cleaning disc, and reduces the risk of the cleaning disc separating from the machine body. The structure of the window cleaning machine is specifically as shown in the description Figure 1 The specific structure of the window cleaning machine is as shown in the description Figures 2-7 The specific scheme is as follows:

[0033] A window cleaning machine, comprising a main machine 1 and a plurality of cleaning discs 2 located on one side of the main machine 1, the main machine 1 being used to drive the cleaning discs 2 to rotate, the cleaning discs 2 being used to rotate to clean a surface to be cleaned, and the main machine 1 and the cleaning discs 2 being detachably connected. The cleaning discs 2 are provided with cleaning pieces 3 such as cleaning cloth and cleaning brush, and the cleaning discs 2 rotate under the driving of the main machine 1 to realize cleaning effect.

[0034] The main unit 1 has a mounting base 11 on the side facing the cleaning tray 2. The mounting base 11 is used to detachably connect to the cleaning tray 2 when subjected to external forces from the cleaning tray 2 and / or itself in a preset first direction and its opposite direction. The mounting base 11 is used to connect the cleaning tray 2, and the cleaning tray 2 is provided with a connection structure that can connect to the mounting base 11. The connection relationship between the main unit 1 and the cleaning tray 2 is shown in the attached figure. Figure 1 As shown. The structure of the mounting base 11 is as attached. Figure 2 and 3 As shown, attached Figure 3 For the appendix Figure 2 A cross-sectional diagram of AA. The structure of cleaning disc 2 is as follows. Figure 4 , 5 As shown in Figures 6 and 7, Appendix Figure 4 and attached Figure 7 Two types of cleaning trays were shown, with... Figure 5 For the appendix Figure 4 Front view, attached Figure 6 For the appendix Figure 5 A schematic diagram of the cross-section of AA.

[0035] In this application, the first direction is the direction from which the cleaning disk 2 faces the host 1, and the opposite direction is the direction from which the host 1 faces the cleaning disk 2. (Attached) Figure 1 In the diagram, the first direction 'a' refers to the direction in which the cleaning disc 2 points towards the main unit 1. During installation, pressing the cleaning disc 2 towards the main unit 1 or pressing the main unit 1 towards the cleaning disc 2 completes the connection between the cleaning disc 2 and the mounting base 11. The first direction and its opposite direction essentially represent the direction of force applied during the installation of the main unit 1 and the cleaning disc 2; the force can be applied by the cleaning disc 2 or by the main unit 1.

[0036] In this application, the window cleaning machine is equipped with a locking component that can lock the cleaning disc 2 onto the main unit 1. Even if subjected to external impact, the cleaning disc 2 will not easily separate from the main unit 1 and can be pulled along with the main unit 1 by the safety rope, reducing safety accidents caused by the window cleaning machine falling. The locking component consists of multiple locking mechanisms 4. Specifically, the locking mechanism 4 is disposed on the mounting base 11 and / or the cleaning disc 2, and is used to limit the displacement of the cleaning disc 2 in any direction on the mounting base 11. Through the restriction of the locking mechanism 4, the cleaning disc 2 is stably mounted on the mounting base 11, preventing the cleaning disc 2 from shaking or falling off.

[0037] In some embodiments, the locking mechanism 4 comprises a main locking part and a slave locking part, the main locking part is arranged on one of the cleaning disc 2 and the mounting base 11, and the slave locking part is arranged on the other one of the cleaning disc 2 and the mounting base 11, the main locking part and the slave locking part are locked with each other to limit the displacement of the cleaning disc 2 in any direction on the mounting base 11. The main locking part and the slave locking part constitute a movable locking mechanism 4, which limits the relative displacement between the cleaning disc 2 and the mounting base 11, and realizes the stable locking of the cleaning disc 2 on the mounting base 11. In some specific embodiments, the main locking part is movable in the slave locking part, and after the cleaning disc 2 is mounted on the mounting base 11 in the first direction, the main locking part is embedded in the slave locking part to realize the locking in the plane perpendicular to the first direction.

[0038] Further, the main locking part comprises a flexible locking piece, and the slave locking part is provided with a locking position, when the cleaning disc 2 is mounted on the mounting base 11, the flexible locking piece is flexibly compressed, and after the cleaning disc 2 is mounted on the mounting base 11, the flexible locking piece is reset and locked on the locking position and locked with the locking position. The flexible locking piece is provided with an elastic structure, which can realize the flexible compression and the locking and unlocking between the flexible locking piece and the locking position. The locking position is a region on the slave locking part, and a structure such as a groove or a protrusion can be arranged in the region to cooperate with the flexible locking piece to realize more close locking. The locking position can also not be provided with any structure, and the locking is realized by the flexible locking piece. In actual application, the structure at the locking position needs to be set according to the structure of the flexible locking piece. In some embodiments, the locking position is formed with a locking groove 44, and the flexible locking piece is locked with the locking groove to limit the displacement of the cleaning disc 2 in any direction on the mounting base 11. The flexible locking piece realizes the locking by being embedded in the locking groove 44.

[0039] For example, the flexible locking piece comprises a telescopic piece 41 and an elastic piece 42, as shown in the accompanying drawings. Figure 3 and Figure 4 For example, the slave locking part comprises a locking groove 44, and the locking groove 44 is used to accommodate the telescopic piece 41, as shown in the accompanying drawings. Figure 6 The telescopic piece 41 is connected with the elastic piece 42, and is used to move towards the elastic piece 42 and compress the elastic piece 42 when an external force in a preset first direction from the cleaning disc 2 and / or the mounting base 11 is applied, and to rebound into the locking groove 44 under the elastic force of the elastic piece 42 after the cleaning disc 2 is mounted on the mounting base 11. One end of the elastic piece 42 is connected with the telescopic piece 41, and the other end is fixedly connected with a fixing piece 43, and the fixing piece 43 is fixedly arranged on the cleaning disc 2 or the mounting base 11, so that the telescopic piece 41 can rebound under the action of the elastic piece 42. In the accompanying drawings, the telescopic piece 41, the elastic piece 42 and the fixing piece 43 are all arranged on the mounting base 11, and the telescopic piece 41, the elastic piece 42 and the fixing piece 43 are all arranged on the cleaning disc 2. Figure 3 Figure 6 ​In some embodiments, the locking groove 44 is located in the cleaning disc 2, and the mounting base 11 can be embedded into the hollow area in the middle of the cleaning disc 2 to complete the connection.

[0040] Further, the flexible locking member is provided with a guide slope 45, which is in contact with the cleaning disc 2 and moves along the guide slope 45 during the installation process. The guide slope 45 is used to guide the movement of the cleaning disc 2 during the installation of the cleaning disc 2 on the mounting base 11, so that the flexible locking member is flexibly compressed. The guide slope 45 can assist the movement of the cleaning disc 2, so that the locking process between the cleaning disc 2 and the mounting base 11 is more smooth. In some embodiments, the guide slope is used to move along the locking groove when the flexible locking member is reset, so that the flexible locking member and the locking groove are locked with each other.

[0041] In some embodiments, the telescopic member 41 is provided with a guide slope 45 inclined towards the elastic member 42, which is used to generate a component force towards the elastic member 42 when an external force acts on the guide slope 45, so that the telescopic member 41 moves towards the elastic member 42. For example, the telescopic member 41 is provided with a guide slope 45 towards the mounting base 11 or the cleaning disc 2, which is used to bear the external force in a preset first direction from the cleaning disc 2 and / or the mounting base 11, as shown in the accompanying drawings. Figure 3 The guide slope 45 is inclined towards the elastic member 42, so as to move towards the elastic member 42 when being pressed. For example, one of the mounting base 11 and the cleaning disc 2 is provided with the telescopic member 41, and the telescopic member 41 is provided with the guide slope 45, and the other is provided with a pressing part; during the installation of the cleaning disc 2 on the mounting base 11, the pressing part presses the guide slope 45, the guide slope 45 moves relative to the pressing part, the pressing part moves from one end of the guide slope 45 to the other end, the telescopic member 41 continuously moves towards the elastic member 42, and continuously presses the elastic member 42. When the guide slope 45 is separated from the pressing part, the telescopic member 41 stops moving towards the elastic member 42, but the elastic member 42 will give the telescopic member 41 a rebounding force. The guide slope 45 is set to make the movement of the telescopic member 41 more smooth, so that the cleaning disc 2 can be easily installed on the mounting base 11.

[0042] In some embodiments, the window cleaning machine further comprises an unlocking portion. The unlocking portion is used to separate the flexible locking member from the locking position. The unlocking portion is responsible for contacting the locking state between the flexible locking member and the locking position, so that the cleaning disc 2 can be removed from the mounting base 11. The unlocking key on the main machine 1 or the cleaning disc 2 can be set as the unlocking portion, which is connected to the locking mechanism 4 and can drive the locking mechanism 4 to move to achieve the unlocking between the cleaning disc 2 and the mounting base 11. The unlocking mechanism can quickly complete the separation of the cleaning disc 2 and the main machine 1, and facilitate the replacement and cleaning of the cleaning disc 2. In some specific embodiments, the unlocking portion comprises a plurality of unlocking members, and the plurality of unlocking members are arranged in a spaced manner or integrally arranged. The unlocking portion can comprise a plurality of unlocking members. If the unlocking members are arranged in a spaced manner, each unlocking member is independent and has a certain physical space between each other. For example, since the cleaning disc 2 is a circular structure, the unlocking members can be arranged in a ring shape on the cleaning disc 2, and when the unlocking members are triggered, the corresponding flexible locking members can be released. When all the unlocking members are integrated to form an integral structure, the user only needs to perform one operation to simultaneously affect all the flexible locking members.

[0043] In some specific embodiments, part of the structure of the unlocking member is exposed to the outer surface of the main machine and / or the cleaning disc 2, so that the unlocking member can be directly contacted by the user. When the unlocking member is unlocked by applying an external force, the direction of the applied force can be different from the movement direction of the flexible locking member. Since the unlocking member is provided with a plurality of unlocking members, different unlocking modes can be set as needed, which involves the flexible locking member and the locking position. In this application, there is no limitation on the direction of the external force applied to the unlocking member and the relative displacement direction between the flexible locking member and the locking position. For example, there is a horizontal relative displacement between the flexible locking member and the locking position, and the unlocking between the flexible locking member and the locking position can also be achieved by applying a vertical external force to the unlocking member.

[0044] For example, the main locking portion is located on the cleaning disc 2, and the locking portion is located on the mounting base 11. When the cleaning disc 2 is pressed towards the mounting base 11, the telescopic member 41 will also be extruded and move towards the elastic member 42, compressing the elastic member 42. The elastic member 42 will feed back to the telescopic member 41 a rebound force away from the elastic member 42. Once the cleaning disc 2 is pressed onto the mounting base 11, the installation of the two is completed, the telescopic member 41 is no longer extruded, but is reset under the action of the elastic member 42, and extends into the locking groove 44 located on the mounting base 11, achieving the relative fixation between the locking groove 44 and the telescopic member 41, and further achieving the locking between the mounting base 11 and the cleaning disc 2.

[0045] In some embodiments, a plurality of locking mechanisms 4 are distributed on the mounting base 11 and / or the cleaning disc 2 along one or more planes perpendicular to the first direction. In the accompanying drawings, the locking mechanisms 4 are arranged in a plurality of rows along the first direction, and the rows are arranged in a plurality of columns along the second direction perpendicular to the first direction.Figure 8 In some embodiments, the first direction is indicated by direction a, and b1 and b2 are two planes perpendicular to the first direction, and the locking mechanisms 4 are distributed on both planes.

[0046] The included angle between the two groups of locking mechanisms 4 and the line connecting the geometric center of the cleaning disc 2 is 180°; or, the included angle between any two adjacent groups of locking mechanisms 4 among the three or more locking mechanisms 4 and the line connecting the geometric center of the cleaning disc 2 is no more than 180°. When there are two locking mechanisms 4 in the locking assembly, the two locking mechanisms 4 need to be limited to be arranged on both sides of the geometric center. In the attached Figure 8 In some embodiments, there are only two oppositely arranged locking mechanisms 4 on the plane b2, and the two locking mechanisms 4 are arranged on both sides of the geometric center to form an angle of 180°. When there are three or more locking mechanisms 4 in the locking assembly, the included angle between any two adjacent locking mechanisms 4 and the geometric center is limited to be less than 180°. In the attached Figure 8 In some embodiments, there are three locking mechanisms 4 on the plane b1, and the included angles between the three locking mechanisms 4 and the geometric center are c1, c2, and c3, respectively, all of which are no more than 180°. By limiting the distribution of the locking mechanisms 4, the cleaning disc 2 and the main machine 1 can be fully locked. The cleaning disc 2 usually needs to rotate, and its cross section is generally circular. The geometric center of the cleaning disc 2 can be determined as a straight line where the center of the circle is located. The straight line connecting the center of the circle and the two adjacent locking mechanisms 4 forms an included angle. By limiting the range of the included angle, the locking mechanisms 4 can at least lock both ends of the cleaning disc 2. The schematic diagram of the included angle is shown in the attached Figure 8

[0047] The locking mechanism 4 can be achieved by a movable part or by a fixed part. Therefore, the locking mechanism 4 can be divided into two types. One is a movable locking mechanism 4, which has at least one movable part and achieves locking through the movable connection between multiple parts. The other is a fixed locking mechanism 4, which achieves locking through the engagement between two or more structures. In some specific embodiments, there is at least one group of movable locking mechanisms 4 in the locking assembly. For example, one group of locking mechanisms 4 are two engaging parts that can be engaged, and the two engaging parts are fixedly connected to the cleaning disc 2 and the mounting base 11, respectively. Another locking mechanism 4 is a movable part and a locking groove 44 matched with the movable part. The movable part can move in the locking groove 44, and the movable part and the locking groove 44 are located on the cleaning disc 2 and the mounting base 11, respectively. During installation, the engagement of the two engaging parts can be achieved first to complete the locking of one end, and then the locking mechanism 4 of the other end is installed to avoid misalignment and installation failure. In actual application, each group of locking mechanisms 4 can also be set as movable locking mechanisms 4 to make the installation more flexible.

[0048] ​The basic form of the window cleaning machine includes a plurality of forms. For example, the window cleaning machine further includes a walking disc, the cleaning disc 2 and the walking disc constitute a cleaning unit, and a plurality of cleaning units can be arranged on the main machine 1. The main machine 1 is provided with a negative pressure device communicating with the cleaning unit, and the negative pressure device is used to extract air in the cleaning unit to make the window cleaning machine adsorb to the surface to be cleaned. In some embodiments, the main machine 1 is provided with a negative pressure channel 5, the cleaning disc 2 is provided with an adsorption channel 6 for communicating with the negative pressure channel 5 at a position matched with the negative pressure channel 5, and part of the structure of the locking assembly is located on the side wall of the adsorption channel 6. In use, the cleaning unit is closely attached to the surface to be cleaned, and the negative pressure channel 5, the adsorption channel 6 in the main machine 1 and the surface to be cleaned form an adsorption space. In the drawings Figure 4 and 5 , the middle area of the cleaning disc 2 is hollow and the side wall is bent to form an adsorption channel 6 with a side wall, which can communicate with the negative pressure channel 5 on the main machine 1. The side wall at the adsorption channel 6 is provided with a side wall facing the main machine 1, and the relevant locking mechanism 4 can be arranged on the side wall. The structure of the cleaning disc 2 is fully utilized. At the same time, by arranging the locking mechanism 4 at the adsorption channel 6, the communication between the adsorption channel 6 and the negative pressure channel 5 of the main machine 1 can be further stabilized, and the stability of adsorption can be improved.

[0049] In some embodiments, the window cleaning machine is also provided with a positioning structure, which is responsible for guiding the cleaning disc 2 to be installed on the mounting base 11 in a fixed posture to ensure that it is installed in place. The positioning structure is located on the cleaning disc 2 and / or the mounting base 11, and a suitable positioning scheme can be selected as needed. The positioning structure can adopt any known positioning scheme, including but not limited to, positioning members and positioning grooves capable of accommodating the positioning members. For example, the mounting base 11 and the cleaning disc 2 are both provided with polygonal structures as the positioning structure, and the nesting between the polygonal structures can achieve positioning. Only when the polygonal structures on the cleaning disc 2 and the mounting base 11 can be smoothly nested can the installation of the two be achieved.

[0050] In some embodiments, the middle area of the cleaning disc 2 is provided with a polygonal structure, as shown in the drawings Figure 4 and 7 . The drawings Figure 4 and the drawings Figure 7 show two example diagrams of the cleaning disc. The middle of the polygonal structure is hollow to form an adsorption channel 6, the polygonal structure is detachably connected with the mounting base 11, and part or all of the locking mechanism 4 is located on the side of the polygonal structure. The polygonal structure can be understood as a connecting structure on the cleaning disc 2, and the mounting base 11 is correspondingly provided with a connecting member capable of being clamped and connected with the polygonal structure. When the polygonal structure is installed on the mounting base 11, the locking mechanism 4 is simultaneously locked. Figure 2 and 5In this design, both the mounting base 11 and the cleaning tray 2 are provided with polygonal structures, and the two polygonal structures can be nested to achieve a detachable connection between the cleaning tray 2 and the mounting base 11. The locking mechanism 4 is set on the side of the polygonal structure, that is, the locking mechanism 4 is set on the connecting structure. When the polygonal structure is connected to the mounting base 11, the locking mechanism 4 locks accordingly, so as to reduce the time interval between installation and locking, or to achieve "synchronization" between installation and locking.

[0051] In some embodiments, the mounting base 11 is provided with a blocking structure 111, which divides the negative pressure channel 5 into multiple sub-channels at the mounting base 11. The blocking structure 111 can block airflow, dividing a single airflow into multiple airflows, reducing the impact of airflow on the internal structure of the main unit 1. Furthermore, a filter assembly can be provided at the blocking structure 111 to filter the airflow. (See attached...) Figure 2 In the middle, the central area of ​​the mounting base 11 is hollowed out to allow airflow into the main unit 1. The blocking structure 111 includes a circular structure at the center and a diverging structure radiating outward from the circular structure. The blocking structure 111 divides the negative pressure channel 5 into 8 channels.

[0052] In some specific embodiments, the drive assembly includes a drive unit and a traveling disc. The traveling disc is connected to the drive unit and rotates under the drive of the drive unit. The traveling disc is connected to the cleaning disc 2 and drives the cleaning disc 2 to rotate. In one embodiment, at least two cleaning units are provided. The central axes of at least two traveling discs are inclined relative to the central axis of the main unit 1, and the rotation directions of the two traveling discs are opposite to achieve the rotational movement of the two cleaning units. Each cleaning unit includes a cleaning disc 2 and a traveling disc, and the number of cleaning discs 2 and traveling discs are equal, that is, one cleaning disc 2 corresponds to one traveling disc.

[0053] The window cleaning machine requires controlling the negative pressure of each cleaning unit to adhere to the surface to be cleaned. Furthermore, each cleaning unit is pre-installed with an air passage for negative pressure airflow. The negative pressure device in the main unit 1 draws negative pressure into each air passage, causing the cleaning unit to adhere to the surface under pressure. Under the suction of the negative pressure device, a sealed suction space is formed between the window cleaning machine and the surface to be cleaned. This suction space includes the air passage space inside the window cleaning machine and the space between the window cleaning machine and the surface to be cleaned.

[0054] In the window cleaning machine, the main unit 1 is equipped with multiple negative pressure chambers, each of which is connected to a sealed space in a cleaning unit; the negative pressure device is used to evacuate the negative pressure chamber and the sealed space connected to the negative pressure chamber; the negative pressure detection device is used to detect the negative pressure of the negative pressure chamber to obtain the negative pressure of the sealed space.

[0055] The application provides a window cleaning machine, which locks the cleaning disc and the main machine through a locking mechanism, ensures the stable connection between the cleaning disc and the main machine, prevents the cleaning disc from falling off or separating due to vibration or improper operation during the cleaning process, avoids possible safety accidents, and makes the window cleaning machine more reliable, efficient and convenient during use. Locking the cleaning disc and the main machine can also increase the stability of the overall structure of the window cleaning machine, make the window cleaning machine more stable during the cleaning process, and thus improve the cleaning effect and work efficiency.

[0056] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, device, article or method that includes a list of elements not only includes those elements, but also includes other elements not expressly listed, or inherent to such a process, device, article or method. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, device, article or method that includes the element.

[0057] The above description is only the preferred embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings, is also included in the patent protection scope of the application.

Claims

1. A window cleaning machine, characterized in that, include: Host; The mounting base is installed on the main unit; A cleaning tray, mounted on the mounting base, is used to clean the surface to be cleaned; A locking mechanism is provided on the mounting base and / or the cleaning disc to limit the displacement of the cleaning disc in any direction on the mounting base.

2. The window cleaning machine according to claim 1, characterized in that, The locking mechanism includes a main locking part and a secondary locking part. The main locking part is disposed on one of the cleaning tray and the mounting base, and the secondary locking part is disposed on the other of the cleaning tray and the mounting base. The main locking part and the secondary locking part are locked together to restrict the displacement of the cleaning tray in any direction on the mounting base.

3. The window cleaning machine according to claim 2, characterized in that, The main locking part includes a flexible locking element, and the secondary locking part is provided with a locking position; The flexible locking member is used to flexibly compress the cleaning tray when it is installed on the mounting base; after the cleaning tray is installed on the mounting base, it is reset and locked in the locking position to achieve locking with the locking position.

4. The window cleaning machine according to claim 3, characterized in that, The flexible locking member is provided with a guide slope, which is used to guide the cleaning disc to move when the cleaning disc is installed on the mounting base, so that the flexible locking member can be flexibly compressed.

5. The window cleaning machine according to claim 3, characterized in that, It also includes an unlocking part, which connects the flexible locking member and / or the locking position, for disengaging the flexible locking member from the locking position.

6. The window cleaning machine according to claim 5, characterized in that, The unlocking part includes multiple unlocking components, which are spaced apart or integrated into one unit.

7. The window cleaning machine according to claim 6, characterized in that, Part of the unlocking component is exposed on the outer surface of the host and / or the cleaning disk.

8. The window cleaning machine according to claim 4, characterized in that, A locking groove is formed at the locking position, and the flexible locking member locks into the locking groove to limit the displacement of the cleaning disc in any direction on the mounting base.

9. The window cleaning machine according to claim 8, characterized in that, The guide ramp is used to move along the locking groove when the flexible locking member is reset, so that the flexible locking member and the locking groove lock together.

10. The window cleaning machine according to claim 1, characterized in that, It also includes a traveling plate, which is mounted on the main unit and is used to drive the window cleaning machine.

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