Cleaning disc for window cleaning machine and window cleaning machine

Abstract

The utility model discloses a cleaning disc for a window cleaning machine and the window cleaning machine, and belongs to the technical field of window cleaning machines, the cleaning disc comprises an inner disc, the middle part of the inner disc is provided with a vertically through negative pressure hole, and the top surface of the inner disc is provided with an air blocking groove at the periphery of the negative pressure hole; the outer disc is of an annular structure, the outer disc is arranged on the periphery of the inner disc, and at least two layers of pressing rings are arranged on the periphery of the bottom face of the outer disc. The cleaning disc has the advantage of being high in air tightness.

Description

TECHNICAL FIELD

[0001] The utility model relates to a window cleaning machine technical field especially relates to a cleaning disc for window cleaning machine and window cleaning machine. BACKGROUND

[0002] The window cleaning machine can be adsorbed on the surface of the glass stably, and the current cleaning disc structure is insufficient in air tightness, so that the power consumption of the window cleaning machine is large. SUMMARY

[0003] The utility model discloses a cleaning disc for window cleaning machine and window cleaning machine to solve the above -mentioned problem.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] A cleaning disc for window cleaning machine, comprising:

[0006] The inner disc has a negative pressure hole passing through the upper and lower parts in the middle part, and the top surface of the inner disc is provided with a wind resistance groove outside the periphery of the negative pressure hole;

[0007] The outer disc is an annular structure, and is arranged on the outer periphery of the inner disc, and the bottom surface of the outer disc is provided with at least two layers of compression rings.

[0008] Preferably, the inner disc comprises an outer ring part, an inner ring part and a connecting rib, the outer ring part is an annular structure, and is arranged around the outer side of the inner ring part, and the negative pressure hole is formed between the outer ring part and the inner ring part; the connecting rib is arranged on the inner ring part and extends outward in a radial manner, and the outer ring part is fixedly connected with the inner ring part through the connecting rib.

[0009] Preferably, the top surface of the outer ring part is provided with a first wind resistance ring and a second wind resistance ring, the first wind resistance ring is arranged around the outer side edge of the negative pressure hole, the second wind resistance ring is arranged outside the first wind resistance ring, and the wind resistance groove is formed between the outer wall of the first wind resistance ring and the inner wall of the second wind resistance ring.

[0010] Preferably, the center of the inner ring part is provided with a mounting seat, and the mounting seat is provided with a connecting groove with an open top.

[0011] Preferably, the inner side wall of the outer disc is provided with a convex ring, the upper surface of the convex ring is provided with a first wind resistance ring, the bottom surface edge of the outer ring part is provided with a second wind resistance ring protruding downward, and the second wind resistance ring is inserted between the outer side wall of the first wind resistance ring and the inner side wall of the outer disc.

[0012] Preferably, the bottom surface of the outer disc is provided with a plurality of pressing ribs which are uniformly arranged in a radial manner.

[0013] Preferably, the outer disc is provided with a plurality of buckles, the two sides of each buckle are respectively provided with limiting grooves; the outer wall of the inner disc is provided with a plurality of buckle grooves corresponding to the buckles, and the two sides of each buckle groove are respectively provided with limiting protrusions corresponding to the limiting grooves.

[0014] A window cleaning machine comprises a main machine and a cleaning disc for the window cleaning machine as described above, the bottom of the main machine is provided with two negative pressure air outlets, the main machine is provided with a negative pressure fan, and negative pressure is formed at the negative pressure air outlets by the negative pressure fan; the cleaning disc is two and is correspondingly installed at the two negative pressure air outlets, the main machine is provided with a third air blocking ring outside the periphery of the negative pressure air outlets, and the third air blocking ring is inserted into the air blocking groove.

[0015] One of the embodiments of the utility model has the following beneficial effects:

[0016] 1. By arranging the air blocking groove on the top surface of the inner disc, the bottom surface of the main machine of the window cleaning machine is provided with the third air blocking ring matched with the air blocking groove, the third air blocking ring is inserted into the air blocking groove, and multiple air passages are formed at the position, so that the resistance of external air entering the cleaning disc is increased, and the air tightness of the cleaning disc is improved;

[0017] 2. At least two layers of pressing rings are arranged on the bottom surface of the outer disc, the cleaning edge can be pressed on the surface of the glass in a larger area by arranging the at least two layers of pressing rings, so that the air tightness of the cleaning disc is improved, and the cleaning effect is also improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings further illustrate the utility model, but the contents in the drawings do not constitute any limitation on the utility model.

[0019] Figure 1 It is a three-dimensional structure schematic view of the cleaning disc of one of the embodiments of the utility model;

[0020] Figure 2 It is an exploded structure schematic view of the cleaning disc of one of the embodiments of the utility model;

[0021] Figure 3 It is a three-dimensional structure schematic view of the cleaning disc of one of the embodiments of the utility model from another perspective;

[0022] Figure 4 It is a structure schematic view of the window cleaning machine of one of the embodiments of the utility model;

[0023] Figure 5 It is a sectional structure schematic view of the window cleaning machine of one of the embodiments of the utility model;

[0024] In the drawings: 1 - host, 12 - negative pressure fan, 1133 - negative pressure air outlet, 1134 - third wind resistance ring, 2 - cleaning disc, 21 - inner disc, 211 - outer ring part, 2111 - first wind resistance ring, 2112 - second wind resistance ring, 2113 - second wind resistance ring, 212 - inner ring part, 2121 - mounting seat, 2122 - connecting groove, 213 - connecting rib, 214 - negative pressure hole, 215 - wind resistance groove, 216 - clamping groove, 217 - limiting protrusion, 22 - outer disc, 221 - pressing ring, 222 - protruding ring, 223 - first wind resistance ring, 224 - buckle, 225 - limiting groove, 226 - pressing rib. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation on the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] In the description of the present application, it should be noted that, unless otherwise specifically specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on the surface of" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0029] The technical scheme of the present application is further illustrated below by specific embodiments in conjunction with the drawings.

[0030] A cleaning disc 2 for a window cleaning machine of the present embodiment, as shown in Figures 1-3 , comprises:

[0031] An inner disc 21, the middle part of the inner disc 21 has a negative pressure hole 214 penetrating up and down, the top surface of the inner disc 21 is provided with a wind resistance groove 215 outside the outer periphery of the negative pressure hole 214;

[0032] An outer disc 22, the outer disc 22 is annular structure, the outer disc 22 is arranged outside the outer periphery of the inner disc 21, the bottom surface of the outer disc 22 is provided with at least two layers of compression rings 221.

[0033] Since the window cleaning machine generates negative pressure at the cleaning disc 2, so that the window cleaning machine can be firmly adsorbed on the surface of the glass, therefore, the air tightness of the cleaning disc 2 has a great influence on the adsorption force of the window cleaning machine, when the air tightness of the cleaning disc 2 is poor, then a greater negative pressure is needed to make the window cleaning machine adsorbed on the surface of the glass, therefore, the present application sets the wind resistance groove 215 on the top surface of the inner disc 21, and correspondingly, Figure 5As shown, the bottom surface of the main machine 1 of the window cleaning machine is provided with a third air resistance ring 1134 matched with the air resistance groove 215. By inserting the third air resistance ring 1134 into the air resistance groove 215, multiple bending air passages are formed here to increase the resistance of external air entering the cleaning disc 2, thereby improving the air tightness of the cleaning disc 2. It should be pointed out that since the window cleaning machine drives the two cleaning discs 2 to rotate alternately to realize walking on the glass, in the walking process, the cleaning disc 2 drives the cleaning unit (such as cleaning cloth) installed thereon to wipe the glass to realize the cleaning of the window glass, so the relative rotation between the cleaning disc 2 and the main machine 1 needs to occur. Therefore, by matching the air resistance groove 215 with the third air resistance ring 1134 on the bottom surface of the main machine 1, the rotation requirement of the cleaning disc 2 relative to the main machine 1 can be met, and the resistance of air flowing from here into the inside of the cleaning disc 2 can be increased, thereby improving the air tightness of the cleaning disc 2. In addition, at least two layers of compression rings 221 are arranged on the bottom surface of the outer disc 22. By arranging at least two layers of compression rings 221, the area of the cleaning edge pressed against the surface of the glass can be larger, thereby improving the air tightness of the cleaning disc 2 and also improving the cleaning effect. In the working process of the window cleaning machine, the cleaning disc 2 presses the cleaning unit against the surface of the glass through the compression ring 221, and the internal space surrounded by the compression ring 221 forms a negative pressure space to stably adsorb on the surface of the glass. At the same time, the cleaning unit can also be tightly attached to the surface of the glass. When the cleaning disc 2 moves, the path on the surface of the glass passed by the cleaning unit is wiped clean to achieve the cleaning effect.

[0034] Further, the inner disc 21 comprises an outer ring part 211, an inner ring part 212 and a connecting rib 213. The outer ring part 211 is annular in structure and is arranged outside the inner ring part 212. The negative pressure hole 214 is formed between the outer ring part 211 and the inner ring part 212. The connecting rib 213 is arranged on the inner ring part 212 and extends outward in a radial manner. The outer ring part 211 is fixedly connected with the inner ring part 212 through the connecting rib 213.

[0035] By forming the negative pressure hole 214 between the inner ring part 212 and the outer ring part 211, the pressure at each position in the cleaning disc 2 can be more uniform, so that the cleaning disc 2 can be stably adsorbed on the surface of the glass. The inner ring part 212 and the outer ring part 211 can be firmly connected through the plurality of connecting ribs 213, and the structure is more stable and less likely to deform.

[0036] Further, the top surface of the outer ring part 211 is provided with a first wind blocking ring 2111 and a second wind blocking ring 2112, the first wind blocking ring 2111 is arranged around the outer side edge of the negative pressure hole 214, the second wind blocking ring 2112 is arranged around the outer side of the first wind blocking ring 2111, and the outer wall of the first wind blocking ring 2111 and the inner wall of the second wind blocking ring 2112 form the wind blocking groove 215.

[0037] The first wind blocking ring 2111 and the second wind blocking ring 2112 protrude from the top surface of the outer ring part 211 to form the wind blocking groove 215, so that the overall thickness of the outer ring part 211 does not need to be increased, which helps to make the cleaning disc 2 lighter.

[0038] Further, the center of the inner ring part 212 is provided with a mounting seat 2121, and the mounting seat 2121 is provided with a top-open connecting groove 2122.

[0039] The connecting groove 2122 at the top of the mounting seat 2121 can connect the cleaning disc 2 with the main machine 1 of the window cleaning machine, so that the main machine 1 drives the cleaning disc 2 to rotate.

[0040] Further, the inner side wall of the outer disc 22 is provided with a convex ring 222, the upper surface of the convex ring 222 is provided with a first wind blocking ring 223, the bottom surface edge of the outer ring part 211 is provided with a downwardly protruding second wind blocking ring 2113, and the second wind blocking ring 2113 is inserted between the outer side wall of the first wind blocking ring 223 and the inner side wall of the outer disc 22.

[0041] In this way, the resistance of air entering between the inner disc 21 and the outer disc 22 can be increased. When external air enters the gap between the outer disc 22 and the inner disc 21, the air needs to pass around the second wind blocking ring 2113 downwardly and then pass around the first wind blocking ring 223 upwardly. The air changes direction multiple times, which can greatly increase the resistance of the air entering the cleaning disc 2 from the gap between the outer disc 22 and the inner disc 21, thereby improving the air tightness of the cleaning disc 2.

[0042] Further, the bottom surface of the outer disc 22 is provided with a plurality of pressing ribs 226, and the pressing ribs 226 are uniformly arranged in a radial manner.

[0043] In this way, the area of the cleaning unit pressed to the glass surface can be further increased, thereby increasing the cleaning force of the cleaning disc 2.

[0044] Further, the outer disc 22 is provided with a plurality of buckles 224, and the two sides of each buckle 224 are respectively provided with a limiting groove 225; the outer wall of the inner disc 21 is provided with a buckle groove 216 corresponding to each buckle 224, and the two sides of the buckle groove 216 are respectively provided with a limiting protrusion 217 corresponding to each limiting groove 225.

[0045] Through the cooperation of the buckle 224 and the card slot 216, the outer disc 22 can be firmly installed on the outside of the inner disc 21. The limiting groove 225 cooperates with the limiting protrusion 217 to limit the rotation of the outer disc 22 relative to the inner disc 21, avoiding slipping between the inner disc 21 and the outer disc 22.

[0046] A window cleaning machine, as shown in Figure 4 and Figure 5 , comprises a main machine 1 and a cleaning disc 2 for the window cleaning machine as described above. The bottom of the main machine 1 is provided with two negative pressure air outlets 1133. The main machine 1 is provided with a negative pressure fan 12, and a negative pressure is formed at the negative pressure air outlets 1133 through the negative pressure fan 12. The cleaning disc 2 is two and is installed on the two negative pressure air outlets 1133 correspondingly. The main machine 1 is provided with a third air resistance ring 1134 outside the periphery of the negative pressure air outlets 1133, which is inserted into the air resistance groove 215.

[0047] The negative pressure fan 12 is installed in the main machine 1. In working, the negative pressure fan 12 keeps working to continuously suck the air in the space between the bottom of the two cleaning discs 2 and the glass surface through the two negative pressure air outlets 1133, so that a negative pressure space is formed between the cleaning disc 2 and the glass surface, and the window cleaning machine is pressed on the surface of the glass by the air pressure difference between the external air and the negative pressure space, so that the window cleaning machine is adsorbed on the surface of the glass. Since the relative rotation between the cleaning disc 2 and the main machine 1 is needed to realize the function of the window cleaning machine walking and wiping on the glass, there will inevitably be a gap between the cleaning disc 2 and the main machine 1. In order to reduce the influence of the external air on the air pressure of the negative pressure space, the air resistance groove 215 is arranged on the top surface of the inner disc 21, and the third air resistance ring 1134 is inserted into the air resistance ring on the bottom surface of the main machine 1. When the external air enters the negative pressure space under the action of the air pressure difference between the inside and the outside, the external air needs to flow along the serpentine channel formed between the third air resistance ring 1134 and the air resistance groove 215. As known, in the process of fluid flow, pressure loss will occur when it passes through a bend. Therefore, when the external air flows along the serpentine channel formed between the third air resistance ring 1134 and the air resistance groove 215, the serpentine channel has multiple bends, so that the air flowing from the outside into the negative pressure space can effectively produce greater pressure loss, thereby effectively hindering the external air from flowing into the negative pressure space. The negative pressure space can have better air tightness to reduce the load of the negative pressure fan 12, thereby making the energy consumption of the window cleaning machine lower and having better endurance.

[0048] In the description of the present specification, the description referring to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the described embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The technical principles of the present application are described above in connection with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without requiring creative labor, and these equivalent variations or substitutions are all included within the scope defined by the claims of the present application.

Claims

1. A cleaning pad for a window cleaning machine, characterized in that, The utility model relates to a cleaning disc for window cleaning machine, which comprises an inner disc and an outer disc. The inner disc comprises an outer ring, an inner ring and a connecting rib. The outer ring is annular and surrounds the outer side of the inner ring.

2. A cleaning pad for a window cleaning machine according to claim 1, wherein, The connecting rib is radially extended outward from the inner ring and fixedly connected with the inner ring through the outer ring.

3. A cleaning pad for a window cleaning machine according to claim 2, wherein, The top surface of the outer ring is provided with a first windproof ring and a second windproof ring.

4. A cleaning pad for a window cleaning machine according to claim 2, wherein, The first windproof ring surrounds the outer edge of the negative pressure hole, and the second windproof ring surrounds the outer side of the first windproof ring.

5. A cleaning pad for a window cleaning machine according to claim 2, wherein, The outer wall of the first windproof ring and the inner wall of the second windproof ring form the windproof groove.

6. A cleaning pad for a window cleaning machine according to claim 1, wherein, The center of the inner ring is provided with a mounting seat.

7. A cleaning pad for a window cleaning machine according to claim 1, wherein The inner side wall of the outer disc is provided with a convex ring.

8. A window cleaning machine, characterized in that The top surface of the convex ring is provided with a first windproof ring. The bottom edge of the outer ring is provided with a downwardly protruding second windproof ring. The second windproof ring is inserted between the outer side wall of the first windproof ring and the inner side wall of the outer disc. The bottom surface of the outer disc is provided with a plurality of pressing ribs. The outer disc is provided with a plurality of buckles. The outer wall of the inner disc is provided with a buckle slot corresponding to the buckle. The utility model relates to a window cleaning machine comprising a main machine and a cleaning disc according to any one of claims 1-7. The bottom of the main machine is provided with two negative pressure air outlets. The main machine is provided with a negative pressure fan. The negative pressure fan forms a negative pressure at the negative pressure air outlet. The cleaning disc is two and corresponds to the installation in two negative pressure air outlets. The main machine is provided with a third windproof ring outside the negative pressure air outlet. The third windproof ring is inserted into the windproof groove.

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