Telescopic variable-amplitude window cleaning machine with folding arm and double-chassis structure
Through the design of the double-layer mobile chassis and rotatable folding arm, the problem of insufficient extension of the existing window wiper in the curtain wall window is solved, and efficient cleaning of the arc curtain wall and inclined slope surface is achieved, which enhances the adaptability and safety of the window wiper.
Patent Information
- Application Number
- CN202422297792.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The single-layer mobile chassis design of the existing window wiper cannot effectively extend from the curtain wall window, especially on arc curtain walls and slope surfaces, which cannot meet the needs of efficient and safe cleaning.
The double-layer mobile chassis design combines the rotatable folding arm and telescopic boom to achieve ±90-degree rotation and three-section telescopic adjustment. It is combined with the track walking limit device to ensure that the boom can accurately extend and cover all window areas.
It has achieved efficient cleaning of arc curtain walls and slope surfaces, strong adaptability, meets the cleaning needs of various building facades, and provides safe and reliable cleaning services.
Smart Images

Figure CN223208309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of window cleaning machines, in particular to a telescopic belt folding arm variable amplitude type window cleaning machine with a double chassis structure. Background Art
[0002] Window cleaning machine is a mechanical equipment used to maintain the entire exterior wall of a building. It can not only clean the glass curtain walls of high-rise buildings, but also repair and replace damaged exterior walls.
[0003] Among all types of window cleaning machines, except for fully automatic ones, which do not require human operator intervention, all other types require an operator to operate from a work platform to clean or repair a building's glass curtain wall. Furthermore, the work platform can be moved up and down, or left and right, allowing the operator to perform thorough repairs anywhere on the building's glass curtain wall.
[0004] Window cleaning machines evolved from lifting machinery. Some are actually miniaturized portal cranes. They are widely used plug-in climbing equipment. Their plug-in rods originated from the rotating curved rods used to suspend lifeboats on large ships. These rods serve the same purpose, suspending lifeboats from the inside of the ship to the outside.
[0005] A window cleaning machine is a permanent suspended access device specially used for cleaning and repairing windows and exterior walls of buildings or structures. Its installation methods include wheel-mounted, roof track, suspended track, plug-in rod, slide and other forms to adapt to different usage scenarios and needs.
[0006] However, despite innovations in design and technology, window cleaning machines (BMUs) are now available in a variety of working arm configurations, including straight arms, double arms, luffing arms, and telescopic arms. While this diversity increases the functionality and adaptability of BMUs, it also introduces design and manufacturing complexity, requiring specialized design and optimization for each arm type.
[0007] Secondly, product series development is a key development trend for window cleaning machines. This can significantly shorten product update cycles, improve product competitiveness, and enhance manufacturers' competitive advantage and ability to mitigate market risks in both domestic and international markets. However, this also requires companies to invest more resources and effort in the research and development and promotion of products with different specifications and models to meet diverse market demands.
[0008] Existing window cleaning machines usually adopt a single-layer mobile chassis design and are not equipped with a rotatable folding arm, making it impossible to turn and extend from the curtain wall window, and the extension amount is insufficient, resulting in poor performance on arc curtain walls, and poor performance on inclined slopes in the vertical direction of the curtain wall. Especially in the case of limited roof space or super-high parapets, they cannot meet the use requirements, resulting in the inability to provide efficient and safe cleaning services, showing that their structural flexibility and adaptability are poor. Therefore, there is an urgent need for a telescopic folding arm variable amplitude window cleaning machine with a double chassis structure to solve the above technical problems. Utility Model Content
[0009] The purpose of the utility model is to provide a telescopic folding-arm variable amplitude window cleaning machine with a double chassis structure, so as to solve the problems raised in the above background technology.
[0010] To achieve the above objectives, the present invention provides the following technical solutions:
[0011] The top of described telescopic boom is connected with the turning arm, and the turning arm is connected with the turning arm end face of the telescopic boom, and the turning arm rotation is stopped at the turning arm end.
[0012] As a preferred technical solution of the present invention, an auxiliary hook upper limit is installed on the auxiliary hook.
[0013] As a preferred technical solution of the present invention, both sides of the hanging boat are provided with a restraining soft rope winding structure.
[0014] As an optimal technical solution of the present invention, the double chassis adopts a double-layer mobile chassis design. The lower transfer chassis can move along the main track, that is, the X-axis direction, and the upper main chassis can move along the branch track perpendicular to the main track, that is, the Y-axis direction, and a travel limit device is set on each track.
[0015] As a preferred technical solution of the present invention, the rotation angle of the pivot arm is ±90 degrees.
[0016] As a preferred technical solution of the present invention, the telescopic boom can be extended into three sections.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The window cleaning machine adopts a double-layer mobile chassis design. The lower transfer chassis can move along the main track, that is, the X-axis direction, and the upper main chassis can move along the branch track perpendicular to the main track, that is, the Y-axis direction. Travel limit devices are set on each track, which can enable the window cleaning machine to move precisely along the track. The boom is extended from the set window to carry out cleaning and maintenance operations. The length of the branch track is set according to the distance between the main track and the curtain wall, ensuring that the boom can extend from the curtain wall window directly opposite the branch track with sufficient extension. This structure is more effective for arc curtain walls.
[0019] 2. The window cleaning machine adopts a retractable boom with a rotatable folding arm at the top, and its rotation angle is ±90 degrees, which expands the coverage of the construction area in the left and right sides of the window after it is extended from the window, that is, in the horizontal direction. The lifting mechanism can lift and move the suspended working platform, that is, the hanging basket, in the vertical direction, and the boom can be extended by three sections through telescopic adjustment, so as to complete the construction of full coverage of the curtain wall surface in the window area. The effect is more obvious when the vertical direction of the curtain wall is an inclined slope.
[0020] 3. A rotating disk is provided on the bottom side of the column of the window cleaning machine. Driven by the motor, the column and the telescopic boom can be rotated and adjusted to facilitate the extension of the telescopic boom from the window.
[0021] 4. The structural design of the window cleaning machine takes safety, reliability and ease of use into consideration. It is suitable for cleaning various building facades. Especially when the roof space is limited or the parapet is super high, it can still meet the use requirements and provide efficient and safe cleaning services, demonstrating its structural flexibility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 This is a schematic top view of the overall structure of the utility model;
[0025] Figure 3 It is a schematic diagram of the state of the utility model when it is contracted.
[0026] In the figure: 1. Double chassis; 2. Column; 3. Rotating plate; 4. Telescopic boom; 5. Boom rotation limit device; 6. Auxiliary winch; 7. Auxiliary lifting wire rope; 8. Turning arm; 9. Auxiliary hook upper limit; 10. Auxiliary hook; 11. Gondola slewing arm head; 12. Windproof restraint rope; 13. Gondola; 14. Restraint rope reeling structure; 15. Control cable; 16. Cable reel. DETAILED DESCRIPTION
[0027] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to explain the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the utility model. The different types of cross-section lines in the accompanying drawings of the embodiments of the present utility model are not marked in accordance with national standards, nor do they impose requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.
[0028] See also Figure 1-3 A telescopic window cleaning machine with a double chassis structure and a folding arm and variable amplitude type includes a double chassis 1 and a column 2. The column 2 is installed on the top of the double chassis 1, and a rotating disk 3 is provided on the bottom side of the column 2. Under the drive of the motor, the column 2 and the telescopic boom 4 can be rotated and adjusted to facilitate the extension of the telescopic boom 4 from the window. The telescopic boom 4 is installed on the top of the column 2. The right end of the telescopic boom 4 is connected to a turning arm 8. The side of the telescopic boom 4 is provided with a boom rotation limiter 5. The bottom side of the telescopic boom 4 is provided with an auxiliary winch. 6. One end of the turning arm 8 is connected to the crane 13 through the crane slewing arm head 11. Wind-proof restraint soft ropes 12 are set on both sides of the top of the crane 13. The left end of the turning arm 8 is connected to the right side of the crane slewing arm head 11 and is connected to the auxiliary hook 10. An auxiliary lifting wire rope 7 is set at the bottom of the telescopic boom 4. One end of the auxiliary lifting wire rope 7 is wound on the auxiliary winch 6. Control cables 15 are set on the front and rear sides of the telescopic boom 4. Cable reels 16 are set on the front and rear sides of the telescopic boom 4 near the double chassis 1.
[0029] Among them, the auxiliary hook 10 is installed with an auxiliary hook upper limit 9.
[0030] Among them, restraining soft rope winding structures 14 are provided on both sides of the hanging boat 13.
[0031] Among them, the double chassis 1 adopts a double-layer mobile chassis design. The lower transfer chassis can move along the main track, that is, the X-axis direction, and the upper main chassis can move along the branch track perpendicular to the main track, that is, the Y-axis direction. Travel limit devices are set on their respective tracks, which can enable the window cleaning machine body to move precisely along the track, and the telescopic boom 4 is extended from the set window to carry out cleaning and maintenance operations of the window cleaning machine. The length of the branch track is set according to the distance between the main track and the curtain wall, ensuring that the telescopic boom 4 can be extended from the curtain wall window opposite the branch track, and with sufficient extension. This structure has a more obvious effect on arc curtain walls.
[0032] The rotation angle of the pivot arm 8 is ±90 degrees.
[0033] Among them, the telescopic adjustment of the telescopic boom 4 can be extended into three sections. The top of the telescopic boom is provided with a rotatable folding arm with a rotation angle of ±90 degrees, which expands the coverage of the construction area in the left and right sides of the window after it is extended from the window, that is, in the horizontal direction. The lifting mechanism can lift and move the suspended working platform, that is, the hanging basket, in the vertical direction, and the telescopic adjustment of the boom can be extended into three sections, thereby completing the full coverage of the curtain wall surface in the window area. The effect is more obvious when the vertical direction of the curtain wall is an inclined slope.
[0034] The telescopic belt folding arm variable amplitude type window cleaning machine with a double chassis structure mainly includes: a track running mechanism, a lifting mechanism, a slewing mechanism, a variable amplitude mechanism, a suspended working platform and an electric control system.
[0035] Track travel mechanism: Standard I-beams or H-shaped steel are laid on a prefabricated roof base. Two standard motor reducers with brakes are used for direct drive to ensure the stable movement of the window cleaning machine on the guide rails. The main column is equipped with a slewing bearing directly driven by the motor reducer, which facilitates the retraction of the suspended working platform to the facade side, adapting to the facade cleaning needs of different buildings.
[0036] Lifting mechanism: A winch device with a rope arrangement mechanism is installed in the main frame box, which is used to raise and lower the suspended working platform and is the core component of the window cleaning machine.
[0037] Slewing mechanism: The main engine column is equipped with a slewing bearing directly driven by a motor reducer, which facilitates the retraction of the suspended working platform to the facade side. The main engine arm head is also equipped with a small slewing bearing directly driven by a motor reducer, which facilitates the suspension working platform to approach different corner facades of the building.
[0038] Luffing mechanism: The telescopic boom 4 is driven by the telescopic device to achieve horizontal and vertical telescopic movement to meet the needs of different working angles.
[0039] Suspended work platform: Provides a safe working environment, allowing operators to clean safely at height.
[0040] Electronic control system: responsible for the electrical control and safety protection of the entire window cleaning machine, ensuring safe and efficient operation.
[0041] The working principle and use process of the utility model are as follows: first, the telescopic boom 4 is telescopically adjusted. When moving, it is moved through the double chassis 1, and the double chassis 1 adopts a double-layer mobile chassis design. The lower transfer chassis can move along the main track, that is, the X-axis direction, and the upper main chassis can move along the branch track perpendicular to the main track, that is, the Y-axis direction. Travel limit devices are set on their respective tracks, which can make the window cleaning machine body move precisely along the track, and the telescopic boom 4 is extended from the set window to perform cleaning and maintenance operations on the window cleaning machine. The length of the branch track is set according to the distance between the main track and the curtain wall, ensuring that the telescopic boom 4 can be extended from the curtain wall window facing the branch track with sufficient extension. The use effect of this structure on arc curtain walls is more obvious;
[0042] When rotation is required, a rotating disk 3 is provided on the bottom side of the column 2. Driven by the motor, the column 2 and the telescopic boom 4 can be rotated and adjusted to facilitate the extension of the telescopic boom 4 from the window;
[0043] The top of the retractable boom is equipped with a rotatable folding arm with a rotation angle of ±90 degrees, which expands the coverage of the construction area in the left and right directions of the window after it is extended from the window, that is, in the horizontal direction. The lifting mechanism can lift and lower the suspended working platform, that is, the hanging basket, in the vertical direction, and the boom can be extended to three sections through telescopic adjustment, so as to complete the construction of the curtain wall surface in the window area. The effect is more obvious when the vertical direction of the curtain wall is an inclined slope.
[0044] The structural design of this window cleaning machine takes into account safety, reliability and ease of use. It is suitable for cleaning work on various building facades, especially when the roof space is limited or the parapet is extremely high. It can still meet the use requirements and provide efficient and safe cleaning services, demonstrating its structural flexibility and adaptability. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.
[0045] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A telescopic window cleaning machine with folding arms and variable amplitude with a double chassis structure, comprising a double chassis (1) and a column (2), characterized in that: A column (2) is installed on the top of the double chassis (1), a rotating disk (3) is provided on the bottom side of the column (2), a telescopic boom (4) is installed on the top of the column (2), the right end of the telescopic boom (4) is connected to a turning arm (8), a boom rotation limiting device (5) is provided on the side of the telescopic boom (4), an auxiliary winch (6) is provided on the bottom side of the telescopic boom (4), one end of the turning arm (8) is connected to a gondola (13) through a gondola slewing arm head (11), and the gondola (13) Windproof restraint soft ropes (12) are provided on both sides of the top, an auxiliary hook (10) is connected to the left end of the turning arm (8) and located on the right side of the slewing arm head (11) of the crane, an auxiliary lifting wire rope (7) is provided at the bottom of the telescopic boom (4), one end of the auxiliary lifting wire rope (7) is wound on the auxiliary winch (6), control cables (15) are provided on the front and rear sides of the telescopic boom (4), and cable reels (16) are provided on the front and rear sides of the telescopic boom (4) near the double chassis (1).
2. The telescopic folding arm variable amplitude window cleaning machine with a double chassis structure according to claim 1, characterized in that: An auxiliary hook upper limit (9) is installed on the auxiliary hook (10).
3. The telescopic folding arm variable amplitude window cleaning machine with a double chassis structure according to claim 1, characterized in that: Both sides of the hanging boat (13) are provided with a restraining soft rope winding structure (14).
4. The telescopic folding arm variable amplitude window cleaning machine with a double chassis structure according to claim 1, characterized in that: The double chassis (1) adopts a double-layer movable chassis design, the lower transfer chassis can move along the main track, i.e., the X-axis direction, and the upper main chassis can move along the branch track perpendicular to the main track, i.e., the Y-axis direction, and travel limit devices are set on the respective tracks.
5. The telescopic folding arm variable amplitude window cleaning machine with a double chassis structure according to claim 1, characterized in that: The rotation angle of the turning arm (8) is ±90 degrees.
6. The telescopic folding arm variable amplitude window cleaning machine with a double chassis structure according to claim 1, characterized in that: The telescopic boom (4) is adjustable to extend into three sections.