Window cleaning machine
By designing a first negative pressure chamber and airflow channel in the window cleaning machine, increasing the pressure relief area, and using a reset mechanism, the problem of the window cleaning robot's inability to quickly identify obstacles has been solved, achieving rapid obstacle avoidance and safe cleaning.
Patent Information
- Application Number
- CN202423287027.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Window cleaning robots are unable to quickly identify and avoid obstacles when cleaning windows.
By designing a first negative pressure chamber and an airflow channel in the window cleaning machine, the pressure relief area is increased to reduce the pressure relief recognition time. The negative pressure is maintained by a reset mechanism and a second negative pressure chamber, ensuring that the robot can quickly identify and avoid obstacles.
This reduces pressure relief detection time, improves the window cleaning machine's response speed, avoids the risk of falling, and ensures the stability and safety of the cleaning process.
Smart Images
Figure CN223759744U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of window cleaning equipment technology, and more particularly to a window cleaning machine. Background Technology
[0002] A window cleaning robot is a device used to clean windows. It can walk on glass and clean the glass surface, helping to solve the problems of cleaning windows in high-rise buildings and outdoors.
[0003] However, during the window cleaning process, the window cleaning robot cannot quickly identify obstacles when it encounters them. Utility Model Content
[0004] The purpose of this application is to overcome the deficiencies of the prior art and provide a window cleaning machine to solve the problems in the prior art.
[0005] To address the above problems, this application provides a window cleaning machine, comprising:
[0006] Organism;
[0007] The first negative pressure chamber is used to allow the window cleaning machine to adhere to the surface to be cleaned.
[0008] A cleaning device, installed on the machine body, is used to clean the surface to be cleaned;
[0009] When the first negative pressure chamber is depressurized, the window cleaning machine is used to increase the depressurization area of the first negative pressure chamber in order to reduce the depressurization recognition time of the first negative pressure chamber.
[0010] In one possible implementation, an airflow channel is included, which communicates with the first negative pressure chamber. The airflow channel is used to increase the ventilation area to reduce the pressure relief recognition time of the first negative pressure chamber.
[0011] In one possible implementation, the cleaning device includes a first cleaning element and a second cleaning element, the airflow channel being formed between the first cleaning element and the second cleaning element, the first cleaning element being movable relative to the second cleaning element to increase the ventilation area.
[0012] In one possible implementation, the first cleaning component is movably sleeved on the second cleaning component. The first cleaning component has a first sealing surface, and the second cleaning component has a second sealing surface. The airflow channel is formed between the first sealing surface and the second sealing surface. When the first sealing surface and the second sealing surface abut, the airflow channel is in a sealed state. When the first cleaning component causes the first sealing surface and the second sealing surface to at least partially disengage, the ventilation area of the airflow channel increases.
[0013] In one possible implementation, a reset mechanism is also included for moving the first cleaning member relative to the second cleaning member to reset the airflow channel from a non-sealed state to a sealed state.
[0014] In one possible implementation, the window cleaning machine further includes a second negative pressure chamber, which is used to maintain negative pressure on the surface to be cleaned when the first negative pressure chamber is depressurized.
[0015] In one possible implementation, the cleaning device includes: a first cleaning element and a second cleaning element, wherein a first negative pressure chamber is formed between the first cleaning element and the second cleaning element, and the second negative pressure chamber is formed within the second cleaning element.
[0016] In one possible implementation, the second cleaning component is provided with perforations to increase the ventilation area of the second negative pressure chamber.
[0017] In one possible implementation, the window cleaning machine includes a traveling component for driving the window cleaning machine to operate. When the first negative pressure chamber is depressurized, the traveling component remains on the surface to be cleaned to drive the window cleaning machine to operate.
[0018] In one possible implementation, when the window cleaning machine comes into contact with an obstacle, the first negative pressure chamber is depressurized. The window cleaning machine is used to increase the depressurization area of the first negative pressure chamber to reduce the depressurization recognition time of the first negative pressure chamber, thereby reducing the time for the window cleaning machine to recognize the obstacle.
[0019] The beneficial effects of this application include:
[0020] This application proposes a window cleaning machine including a body, a first negative pressure chamber and a cleaning device, wherein, when the first negative pressure chamber is depressurized, the window cleaning machine is used to increase the depressurization area of the first negative pressure chamber in order to reduce the depressurization recognition time of the first negative pressure chamber.
[0021] When pressure leakage occurs in the first negative pressure chamber, increasing the pressure relief area can improve the pressure change rate (i.e., the amount of pressure change per unit time), thereby reducing the pressure relief detection time of the first negative pressure chamber. In addition, increasing the pressure relief area can make the pressure relief process more stable, reduce the pressure fluctuation amplitude (i.e., the derivative of the pressure change rate), and avoid the risk of the window cleaning machine falling due to sudden pressure changes. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A cross-sectional view of a window cleaning machine is shown;
[0024] Figure 2 It shows Figure 1 A magnified view of the area along line A in the middle;
[0025] Figure 3 An exploded schematic diagram of a first cleaning component and a second cleaning component is shown;
[0026] Figure 4 This diagram illustrates a window cleaning machine encountering an obstacle.
[0027] Figure 5 It shows Figure 4 A magnified view of the area along the B direction;
[0028] Figure 6 It shows Figure 4 A magnified view of the area along the C-axis.
[0029] Explanation of key component symbols:
[0030] 100-Body; 210-First negative pressure chamber; 220-Second negative pressure chamber; 310-First cleaning component; 311-First sealing surface; 320-Second cleaning component; 321-Second sealing surface; 330-Sealing component; 400-Airflow channel; 510-Pressure pin; 520-Spring; 530-Insertion post; 531-Insertion hole; 540-Mounting hole; 600-Traveling component; 700-Glass; 710-Obstacle. Detailed Implementation
[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 only used to explain this application, and should not be construed as limiting this application.
[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0033] Example
[0034] like Figures 1-4 As shown, in this embodiment, a window cleaning machine is proposed, comprising:
[0035] Body 100;
[0036] The first negative pressure chamber 210 is used to allow the window cleaning machine to adhere to the surface to be cleaned.
[0037] A cleaning device, mounted on the body 100, is used to clean the surface to be cleaned. The surface to be cleaned can be the surface of glass 700.
[0038] When the first negative pressure chamber 210 is depressurized, the window cleaning machine is used to increase the depressurization area of the first negative pressure chamber 210 in order to reduce the depressurization recognition time of the first negative pressure chamber 210.
[0039] Furthermore, the window cleaning machine includes an airflow channel 400. The airflow channel 400 is connected to the first negative pressure chamber 210, and the airflow channel 400 is used to increase the ventilation area to reduce the pressure relief detection time of the first negative pressure chamber 210.
[0040] The cleaning device includes a first cleaning element 310 and a second cleaning element 320, and an airflow channel 400 is formed between the first cleaning element 310 and the second cleaning element 320. The first cleaning element 310 is used to move relative to the second cleaning element 320 to increase the ventilation area.
[0041] The first cleaning component 310 has a ring-shaped structure, and the second cleaning component 320 can be fixedly connected to the body 100. Of course, the second cleaning component 320 can also be movably connected to the body 100. The first cleaning component 310 and the second cleaning component 320 are movably connected to each other.
[0042] Specifically, the first cleaning component 310 is movably fitted onto the second cleaning component 320.
[0043] like Figure 2As shown, the first cleaning component 310 has a first sealing surface 311, and the second cleaning component 320 has a second sealing surface 321, wherein an airflow channel 400 is formed between the first sealing surface 311 and the second sealing surface 321. Figure 2 In the middle, the first sealing surface 311 and the second sealing surface 321 are in a separated state.
[0044] When the first sealing surface 311 and the second sealing surface 321 come into contact, the airflow channel 400 is in a sealed state.
[0045] When the first cleaning component 310 causes the first sealing surface 311 and the second sealing surface 321 to at least partially disengage from contact, the ventilation area of the airflow channel 400 increases.
[0046] Furthermore, a sealing element 330 may be provided between the first sealing surface 311 and the second sealing surface 321, with the first sealing surface 311 and the second sealing surface 321 respectively located on both sides of the sealing element 330. The sealing element 330 may be sealed and fixedly connected to the second sealing surface 321, or it may be sealed and fixedly connected to the first sealing surface 321.
[0047] When the airflow channel 400 is in a sealed state, the first sealing surface 311 and the second sealing surface 321 are both sealed and engaged with the sealing element 330. At this time, the first cleaning element 310 is in the initial state relative to the second cleaning element 320. When the first cleaning element 310 moves relative to the second cleaning element 320, the first sealing surface 311 is separated from the sealing element 330 under the action of the first cleaning element 310, thereby increasing the ventilation area of the airflow channel 400.
[0048] Reference Figure 4 and Figure 5 On the left side of the window cleaning machine, the first sealing surface 311 and the second sealing surface 321 are both sealed and fitted with the sealing element 330.
[0049] Reference Figure 4 and Figure 6 On the right side of the window cleaning machine, the first cleaning component 310 moves onto the obstacle 710. Under the action of the obstacle 710, the first cleaning component 310 moves away from the glass 700, while the relative distance between the second cleaning component 320 and the glass 700 remains unchanged. This causes the first sealing surface 311 to separate from the sealing component 330. As a result, external air will flow into the first negative pressure chamber 210 through the gap between the first cleaning surface and the glass 700, thereby reducing the negative pressure of the first negative pressure chamber 210. At the same time, the air inside the machine body 100 enters the first negative pressure chamber 210 through the airflow channel 400, thereby further reducing the negative pressure of the first negative pressure chamber 210.
[0050] In this embodiment, the window cleaning machine also includes a reset mechanism. The reset mechanism is used to move the first cleaning component 310 relative to the second cleaning component 320, thereby resetting the airflow channel 400 from a non-sealed state to a sealed state. There are multiple reset mechanisms, which are arranged in a circular array.
[0051] like Figure 2 and Figure 3 As shown, the reset mechanism includes a pressure pin 510 and a spring 520. The first cleaning component 310 is provided with a plug post 530, and the second cleaning component 320 is provided with a mounting hole 540, wherein the plug post 530 is provided with a plug hole 531 inside.
[0052] During assembly, first insert the plug 530 into the corresponding mounting hole 540, ensuring that a portion of the plug 530 passes through the mounting hole 540; then, sleeve the spring 520 onto the portion of the plug 530 that passes through the mounting hole 540; finally, insert the rod of the pressure pin 510 into the plug hole 531, wherein one end of the spring 520 abuts against the second cleaning component 320, and the other end abuts against the head of the pressure pin 510. The rod of the pressure pin 510 and the plug hole 531 can be fixedly connected through interference fit, snap-fit, or other methods.
[0053] When the first cleaning member 310 is in the initial state relative to the second cleaning member 320, the spring 520 is in the naturally extended state.
[0054] When the first cleaning component 310 moves onto an obstacle 710 such as a rubber strip or frame, and the first cleaning component 310 moves relative to the second cleaning component 320, causing the airflow channel 400 to open, the spring 520 is compressed due to the pressure from the first cleaning component 310 and the second cleaning component 320. When the first cleaning component 310 separates from the obstacle 710, the spring 520 extends and returns to its natural extended state. During this process, the spring 520 applies an elastic force to the first cleaning component 310, causing the first cleaning component 310 to return to its initial state. Correspondingly, the airflow channel 400 is reset from a non-sealed state to a sealed state.
[0055] In this embodiment, the window cleaning machine also includes a second negative pressure chamber 220. When the first negative pressure chamber 210 is depressurized, the second negative pressure chamber 220 is used to maintain negative pressure on the surface to be cleaned. Thus, even when the negative pressure in the first negative pressure chamber 210 is insufficient, the window cleaning machine can still adhere to the surface to be cleaned under the negative pressure of the second negative pressure chamber 220, thereby preventing the window cleaning machine from falling.
[0056] like Figure 4 As shown, the first negative pressure chamber 210 is formed between the first cleaning member 310 and the second cleaning member 320, and the second negative pressure chamber 220 is formed inside the second cleaning member 320.
[0057] Furthermore, the second cleaning component 320 may be provided with perforations to increase the ventilation area of the second negative pressure chamber 220. In this way, a negative pressure environment can be quickly formed inside the second negative pressure chamber 220 under the action of a vacuum pump or exhaust fan.
[0058] like Figure 1 As shown, the window cleaning machine includes a traveling component 600. The traveling component 600 includes a cleaning disc, rollers, etc.
[0059] The traveling component 600 is used to drive the window cleaning machine. When the first negative pressure chamber 210 is depressurized, the traveling component 600 remains on the surface to be cleaned to drive the window cleaning machine, thereby enabling the window cleaning machine to leave its current position, thereby avoiding the obstacle 710 and preventing the pressure inside the first negative pressure chamber 210 from continuously decreasing.
[0060] In this embodiment, when the window cleaning machine contacts the obstacle 710, the first negative pressure chamber 210 is depressurized. The window cleaning machine increases the depressurization area of the first negative pressure chamber 210 to reduce the depressurization recognition time of the first negative pressure chamber 210, thereby reducing the time for the window cleaning machine to recognize the obstacle 710. The obstacle 710 includes the window frame or sealing strip, etc.
[0061] The body 100 is equipped with a pressure detection device, which is used to detect the pressure in the first negative pressure chamber 210. The pressure detection device includes a negative pressure sensor.
[0062] When the window cleaning machine is in normal operation, the negative pressure value in the first negative pressure chamber 210 is a preset value.
[0063] When the window cleaning machine touches the obstacle 710 during operation, and the first cleaning component 310 moves onto the obstacle 710, the first cleaning component 310 moves relative to the second cleaning component 320 under the action of the obstacle 710. This creates a gap between the first cleaning component 310 and the surface to be cleaned, and opens the airflow channel 400. At this time, both external air and air inside the machine body 100 enter the first negative pressure chamber 210, thereby rapidly reducing the negative pressure inside the first negative pressure chamber 210.
[0064] Because the negative pressure in the first negative pressure chamber 210 changes significantly in a short period of time, the pressure relief detection time of the first negative pressure chamber 210 is reduced, allowing the air pressure detection device to quickly detect the negative pressure change in the first negative pressure chamber 210. As a result, the window cleaning machine can react and leave the obstacle 710 in a short time.
[0065] In addition, in this embodiment, increasing the pressure relief area can make the pressure relief process more stable, reduce the pressure fluctuation range, and avoid the risk of the window cleaning machine falling due to sudden pressure changes.
[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0067] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A window cleaning machine, characterized in that, The window cleaner comprises: a machine body; a first negative pressure cavity for adsorbing the window cleaner on a surface to be cleaned; a cleaning device arranged on the machine body for cleaning the surface to be cleaned; when the first negative pressure cavity is depressurized, the window cleaner is configured to increase the depressurization area of the first negative pressure cavity to reduce the depressurization identification time of the first negative pressure cavity.
2. The window cleaning machine of claim 1, wherein, The window cleaner further comprises an airflow passage in communication with the first negative pressure cavity, and the airflow passage is configured to increase the ventilation area to reduce the depressurization identification time of the first negative pressure cavity.
3. The window cleaning machine of claim 2, wherein, The cleaning device comprises a first cleaning member and a second cleaning member, and the airflow passage is formed between the first cleaning member and the second cleaning member, and the first cleaning member is configured to move relative to the second cleaning member to increase the ventilation area.
4. The window cleaning machine of claim 3, wherein, The first cleaning member is movably sleeved on the second cleaning member, the first cleaning member has a first sealing surface, the second cleaning member has a second sealing surface, and the airflow passage is formed between the first sealing surface and the second sealing surface. When the first sealing surface and the second sealing surface abut, the airflow passage is in a sealed state, and when the first cleaning member drives the first sealing surface and the second sealing surface to at least partially disengage from abutment, the ventilation area of the airflow passage is increased.
5. The window cleaning machine of claim 4, wherein, The window cleaner further comprises a reset mechanism configured to move the first cleaning member relative to the second cleaning member to reset the airflow passage from an unsealed state to the sealed state.
6. The window cleaning robot according to claim 1, wherein The window cleaner further comprises a second negative pressure cavity, and when the first negative pressure cavity is depressurized, the second negative pressure cavity is configured to maintain negative pressure on the surface to be cleaned.
7. The window cleaning machine of claim 6, wherein, The cleaning device comprises a first cleaning member and a second cleaning member, and the first negative pressure cavity is formed between the first cleaning member and the second cleaning member, and the second negative pressure cavity is formed in the second cleaning member.
8. The window cleaning machine of claim 7, wherein, The second cleaning member is provided with a hollow hole configured to increase the ventilation area of the second negative pressure cavity.
9. The window cleaning robot according to claim 1, wherein The window cleaner comprises a walking member configured to drive the window cleaner to run, and when the first negative pressure cavity is depressurized, the walking member is maintained on the surface to be cleaned to drive the window cleaner to run.
10. The window cleaning robot according to claim 1, wherein When the window cleaner contacts an obstacle, the first negative pressure cavity is depressurized, and the window cleaner is configured to increase the depressurization area of the first negative pressure cavity to reduce the depressurization identification time of the first negative pressure cavity, thereby reducing the time for the window cleaner to identify the obstacle.