A single-arm jib post-type window cleaning machine

Abstract

The utility model discloses a single arm back arm back column type window cleaning machine, including big arm and rear arm, the left side welding of rear arm has the connecting frame, the right side of big arm is located in the connecting frame, big arm and connecting frame are rotated and are connected through the pivot, the upper end of big arm is equipped with two first rotating seat, the front and rear both sides of connecting frame all rotate and are connected with short hydraulic rod, and the telescopic end of two short hydraulic rods is rotated and is connected with corresponding first rotating seat, the connecting frame includes the connecting seat, and the upper end of connecting seat is equipped with two connecting steel sheet. The utility model can realize the multi -angle cooperation adjustment of arm support and stand, to adapt to the cleaning demand of different modeling building facade, and, have accurate rotation function and integrated auxiliary operation structure to the premise of guaranteeing the safety of high altitude operation, improve cleaning efficiency and cleaning quality, satisfy modern all kinds of high -rise building and complex building facade cleaning maintenance demand.

Description

Technical Field

[0001] This utility model relates to the field of window cleaning machine technology, and in particular to a single-arm, tilting-arm, tilting-column type window cleaning machine. Background Technology

[0002] In the field of modern architecture, with the acceleration of urbanization, the number of high-rise buildings, super high-rise buildings, and large public buildings (such as convention centers, stadiums, and airport terminals) is increasing daily. These buildings often feature large areas of glass curtain walls or glass windows, which are not only an important part of the building's aesthetic design but also key structures ensuring indoor lighting, ventilation, and views. However, over long-term use, glass curtain walls and windows are susceptible to damage from factors such as dust in the air, residual stains from rainwater erosion, and industrial pollutant deposition, leading to a decrease in the cleanliness of the glass surface. This not only detracts from the overall aesthetics of the building but also reduces indoor lighting efficiency due to obstruction of dirt. Long-term accumulation can also cause corrosion to the glass surface, affecting its lifespan. Therefore, regular cleaning and maintenance of building windows and glass curtain walls has become an important part of the daily operation and management of high-rise buildings.

[0003] Existing mobile window cleaning machines still have many shortcomings in their structural design: some machines adopt a multi-arm splicing structure, which can achieve a certain degree of boom extension and rotation, but the overall structure is complex and the weight is large, resulting in poor mobility of the equipment. Moreover, the connection stability between the booms is insufficient, and it is easy to sway due to external forces such as wind when working at height, affecting cleaning accuracy and equipment safety. In addition, some machines use fixed connection between the column and the boom or a single rotation angle design, which cannot be flexibly adjusted according to the tilt angle and height difference of the building facade. When facing buildings with multi-layered eaves, sloping curtain walls or windows of different heights, it is difficult to achieve coordinated angle adjustment of the boom and column, resulting in the cleaning mechanism not being able to fit against the glass surface, leading to incomplete cleaning or collision between the equipment and the building structure.

[0004] Therefore, it is necessary to design a single-arm, tilting-arm, tilting-column type window cleaning machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a single-arm, tilting-arm, tilting-column type window cleaning machine. This invention enables multi-angle coordinated adjustment of the boom and column to adapt to the cleaning needs of building facades with different shapes. At the same time, it has a precise rotation function and an integrated auxiliary operation structure, thereby improving cleaning efficiency and quality while ensuring the safety of high-altitude operations, and meeting the cleaning and maintenance needs of modern high-rise buildings and complex building facades.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A single-arm, tilting-arm, tilting-column type window cleaning machine includes a main arm and a rear arm. A connecting frame is welded to the left side of the rear arm, and the right side of the main arm is located inside the connecting frame. The main arm and the connecting frame are rotatably connected via a rotating shaft. Two first rotating seats are installed at the upper end of the main arm. Short hydraulic rods are rotatably connected to both the front and rear sides of the connecting frame. The telescopic ends of the two short hydraulic rods are rotatably connected to the corresponding first rotating seats. The connecting frame includes a connecting seat. Two connecting steel plates are installed at the upper end of the connecting seat. The two connecting steel plates are fixedly connected to the rear arm. A column support rod is rotatably connected to the connecting seat. A column body is rotatably connected between the two connecting steel plates. A column base is provided below the rear arm. A disc is welded to the lower end of the column base. The column support rod and the column body are rotatably connected to the column base. Two second rotating seats are installed at the upper ends of the two rear arms. Two long hydraulic rods are rotatably connected to the upper ends of the discs. The telescopic ends of the two long hydraulic rods are rotatably connected to the corresponding second rotating seats.

[0008] Preferably, a plurality of counterweights are installed on the right side of the rear arm.

[0009] Preferably, a base frame is rotatably connected to the lower end of the disk, a first gear is fixedly connected to the upper end of the base frame, a servo motor is mounted on the upper end of the disk, and the output shaft of the servo motor passes through the disk and is fixedly connected to a second gear that meshes with the first gear.

[0010] Preferably, the column support rod is provided with a rectangular opening, a hoist is installed in the rectangular opening, and a lifting box is installed on the right side of the column base.

[0011] Preferably, the base frame is made of I-beams.

[0012] Preferably, the position where the support body is rotatably connected to the column base is higher than the position where the column strut is rotatably connected to the column base.

[0013] Compared with existing technologies, the advantages of this device are:

[0014] 1. Compared with existing technologies, this device uses a rotating shaft connection structure of "boom-connecting frame-rear boom" and a combination of short and long hydraulic rods to achieve multi-angle coordinated adjustment of the boom and column, which greatly improves the adaptability to complex building facades. The short hydraulic rod can drive the boom to rotate around the rotating shaft, and the long hydraulic rod can drive the rear boom to move in conjunction with the column body and column support rod, so that the boom can flexibly adjust the pitch angle and ensure that the cleaning mechanism is always in contact with the glass surface, which completely solves the problems of traditional equipment having many blind spots and being prone to collision with building structures.

[0015] 2. Compared with existing technologies, this device has two advantages. First, it has multiple counterweights on the right side of the rear arm, which can be adjusted in real time according to the extension length of the upper arm and the cleaning load to offset the risk of center of gravity shift. Second, it uses a servo motor to drive the "second gear-first gear" meshing transmission to drive the disc and the upper structure to rotate precisely, replacing the traditional manual steering. The rotation angle is controllable and the positioning is accurate, which can quickly align with the cleaning area in different directions, thus avoiding equipment shaking and improving work efficiency.

[0016] 3. Compared with existing technologies, this device directly installs the hoist inside the rectangular opening of the column support, which can conveniently realize the lifting and transportation of cleaning tools and consumables. At the same time, a lifting box is set on the right side of the column base to store cleaning waste or spare parts, without the need for additional external equipment. Moreover, the overall structure adopts a simplified structure with a single arm as the main component. Compared with existing equipment with multiple arms splicing, it is lighter and more flexible in movement. It reduces wind interference during high-altitude operations and facilitates rapid transfer to building rooftops or the ground, taking into account both functional integration and ease of operation. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a single-arm, tilting-arm, tilting-column type window cleaning machine proposed in this utility model;

[0018] Figure 2 for Figure 1 A structural diagram from another perspective.

[0019] In the diagram: 1 boom, 2 first rotating seat, 3 short hydraulic rod, 4 connecting frame, 5 rotating shaft, 6 second rotating seat, 7 long hydraulic rod, 8 rear boom, 9 counterweight, 10 lifting box, 11 disc, 12 column support rod, 13 hoist, 14 base frame, 15 first gear, 16 servo motor, 17 second gear, 18 column base, 19 column body. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-2A single-arm, tilting-arm, tilting-column type window cleaning machine includes a main arm 1 and a rear arm 8. Both the main arm 1 and the rear arm 8 are made of high-strength manganese steel with a rectangular hollow cross-section. This design ensures structural strength to support the cleaning mechanism and workload while reducing the overall weight of the equipment and lowering energy consumption during movement. A connecting frame 4 is welded to the left side of the rear arm 8 using a double-sided full welding process. The weld height is not less than 8mm, and the weld undergoes flaw detection after completion to ensure the connection strength between the connecting frame 4 and the rear arm 8, preventing safety accidents caused by weld breakage during high-altitude operations. The right side of the main arm 1 is located inside the connecting frame 4. The main arm 1 and the connecting frame 4 are rotatably connected by a rotating shaft 5 made of 40Cr alloy steel. Both ends of the shaft are rotatably engaged with the inner wall of the connecting frame 4 via deep groove ball bearings. The side is equipped with a dust cover to prevent dust and rainwater from entering the bearing and affecting its rotational flexibility. Two first rotating seats 2 are installed on the upper end of the boom 1. The first rotating seats 2 are detachably connected to the boom 1 by bolts. The bolts are high-strength internal hexagon bolts, and spring washers are provided at the contact points between the bolts and the boom 1 to prevent the bolts from loosening due to equipment vibration. Short hydraulic rods 3 are rotatably connected to the front and rear sides of the connecting frame 4. The short hydraulic rods 3 are double-acting hydraulic cylinders. The bottom of their cylinders is rotatably connected to the connecting frame 4 by a pin. The pin surface is chrome-plated to improve wear resistance. The telescopic ends of the two short hydraulic rods 3 are rotatably connected to the corresponding first rotating seats 2. The telescopic extension of the short hydraulic rods 3 can drive the boom 1 to achieve a 0-90° pitch angle adjustment around the rotating shaft 5 to meet the cleaning needs of windows at different heights.

[0022] The connecting frame 4 includes a connecting seat, with two connecting steel plates installed on the upper end of the connecting seat. The two connecting steel plates are fixedly connected to the rear arm 8. A column support rod 12 is rotatably connected to the connecting seat. A column body 19 is rotatably connected between the two connecting steel plates. A column seat 18 is provided below the rear arm 8. A disc 11 is welded to the lower end of the column seat 18. The column support rod 12 and the column body 19 are both rotatably connected to the column seat 18. The rotatable connection position between the support body 19 and the column seat 18 is higher than the rotatable connection position between the column support rod 12 and the column seat 18. Two second rotating seats 6 are installed on the upper end of the two rear arms 8. Two long hydraulic rods 7 are rotatably connected to the upper end of the disc 11. The specifications of the long hydraulic rods 7 are larger than those of the short hydraulic rods 3. Their maximum extension length is 2000-3000mm, which can drive the rear arm 8 to achieve a tilt angle adjustment of 0-60° to the column structure, adapting to complex building facades such as tilted curtain walls. The extension ends of the two long hydraulic rods 7 are rotatably connected to the corresponding second rotating seats 6.

[0023] Multiple counterweights 9 are installed on the right side of the rear arm 8. The counterweights 9 are made of cast iron and each counterweight 9 weighs 50-100kg. The counterweights 9 are detachably connected to the rear arm 8 through slots. That is, the right side of the rear arm 8 has a strip-shaped slot, and the counterweights 9 can be slidably installed along the slot. Adjacent counterweights 9 are fixed with positioning pins, which makes it easy to adjust the number of counterweights according to the extension length of the boom 1 and the cleaning load, so as to ensure the overall balance of the equipment. The column support rod 12 has a rectangular opening, and the hoist 13 is installed in the rectangular opening. The lifting box 10 is installed on the right side of the column base 18.

[0024] The lower end of the disc 11 is rotatably connected to a base frame 14, which is made of I-beams. The upper end of the base frame 14 is fixedly connected to a first gear 15. A servo motor 16 is installed on the upper end of the disc 11. The output shaft of the servo motor 16 passes through the disc 11 and is fixedly connected to a second gear 17 that meshes with the first gear 15. The servo motor 16 drives the second gear 17 to mesh with the first gear 15, which can drive the disc 11 and the upper rear arm 8, upper arm 1, and other structures to achieve 360° continuous rotation. The rotation speed can be adjusted by the controller of the servo motor 16, with an adjustment range of 0.5-2 r / min, to meet the rapid positioning requirements of the window surface in different directions.

[0025] The functional principle of this utility model can be explained through the following operation: Move the equipment to the designated work area of ​​the building to be cleaned, and adjust the number of counterweights 9 on the right side of the rear arm 8 according to the height and distance of the target window and the shape of the building facade. By increasing or decreasing the counterweights 9, the center of gravity shift that may occur after the boom 1 is extended can be balanced in advance, laying the foundation for the safety of high-altitude operations. At the same time, cleaning tools, consumables, etc. can be placed in the lifting box 10 on the right side of the column base 18 for easy access later.

[0026] Entering the core operation phase, the cleaning radius and angle are first adjusted through the coordinated action of the short hydraulic rod 3 and the boom 1: the short hydraulic rods 3 on the front and rear sides of the connecting frame 4 are activated, and the telescopic end of the short hydraulic rod 3 drives the first rotating seat 2 rotatably connected to it, thereby driving the boom 1 to rotate around the pivot 5 between it and the connecting frame 4, realizing the adjustment of the boom 1's pitch angle. When it is necessary to clean the window surface at a higher position, the short hydraulic rod 3 extends to push the boom 1 upward; when cleaning the window surface at a lower position or close to the equipment, the short hydraulic rod 3 shortens to pull the boom 1 downward, so that the cleaning mechanism at the end of the boom 1 can accurately align with the area to be cleaned.

[0027] Meanwhile, through the linkage adjustment of the long hydraulic rod 7, the column body 19 and the column support rod 12, it adapts to the inclined or staggered structure of the building facade: the two long hydraulic rods 7 at the upper end of the start disc 11 are activated, and the telescopic end of the long hydraulic rod 7 drives the second rotating seat 6 on the rear arm 8, causing the rear arm 8 to change angle as a whole. The connecting frame 4, which is fixedly connected to the rear arm 8, will synchronously drive the column support rod 12 and the column body 19. The column support rod 12 rotates around its rotation point with the column base 18, and the column body 19 rotates around its rotation point with the column base 18 (this rotation point is higher than the rotation point of the column support rod 12 and the column base 18) to achieve the adjustment of the tilt angle of the column structure. This ensures that even when facing buildings with eaves or inclined curtain walls, the cleaning mechanism can always be in contact with the glass surface, avoiding cleaning blind spots or collisions between the equipment and the building structure.

[0028] If the horizontal direction of the cleaning operation needs to be adjusted, precise rotation can be achieved through the gear transmission structure driven by the servo motor 16: start the servo motor 16 at the top of the disc 11, the output shaft of the servo motor 16 drives the second gear 17 to rotate. Since the second gear 17 meshes with the first gear 15 fixed at the top of the base frame 14, the second gear 17 will drive the disc 11 and the entire structure above it, including the rear arm 8, the upper arm 1, and the column, to rotate around the base frame 14. The servo motor 16 can precisely control the rotation angle to achieve positioning in any direction within a 360° range, quickly aligning the cleaning mechanism with windows in different directions. There is no need for manual pushing of the entire equipment, which greatly improves the flexibility and efficiency of the operation.

[0029] Throughout the cleaning process, the hoist 13 on the support column 12 can operate in accordance with the work requirements: when cleaning tools need to be replaced or consumables need to be replenished, the hoist 13 is started, and the hoist 13's lifting function is used to transport spare tools or consumables in the lifting box 10 to the work position. At the same time, used dirty tools or waste can be recycled back to the lifting box 10. No additional auxiliary lifting equipment is required, realizing the integration of cleaning operations and tool transportation, and further improving the overall work efficiency.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A single-arm, tilting-arm, tilting-column type window cleaning machine, comprising a main arm (1) and a rear arm (8), characterized in that: A connecting frame (4) is welded to the left side of the rear arm (8), and the right side of the upper arm (1) is located inside the connecting frame (4). The upper arm (1) and the connecting frame (4) are rotatably connected by a rotating shaft (5). Two first rotating seats (2) are installed on the upper end of the upper arm (1). Short hydraulic rods (3) are rotatably connected to both the front and rear sides of the connecting frame (4). The telescopic ends of the two short hydraulic rods (3) are rotatably connected to the corresponding first rotating seats (2). The connecting frame (4) includes a connecting seat. Two connecting steel plates are installed on the upper end of the connecting seat. The two connecting steel plates are fixedly connected to the rear arm (8). A column support rod (12) is rotatably connected to the connecting seat. A column body (19) is rotatably connected between the two connecting steel plates. A column seat (18) is provided below the rear arm (8). A disc (11) is welded to the lower end of the column seat (18). The column support rod (12) and the column body (19) are rotatably connected to the column seat (18). Two second rotating seats (6) are installed on the upper ends of the two rear arms (8). Two long hydraulic rods (7) are rotatably connected to the upper end of the disc (11). The telescopic ends of the two long hydraulic rods (7) are rotatably connected to the corresponding second rotating seats (6).

2. The single-arm, tilting-arm, tilting-column type window cleaning machine according to claim 1, characterized in that: Multiple counterweights (9) are installed on the right side of the rear arm (8).

3. A single-arm, tilting-arm, tilting-column type window cleaning machine according to claim 1, characterized in that: The lower end of the disk (11) is rotatably connected to a base frame (14), the upper end of the base frame (14) is fixedly connected to a first gear (15), the upper end of the disk (11) is equipped with a servo motor (16), and the end of the output shaft of the servo motor (16) passes through the disk (11) and is fixedly connected to a second gear (17) that meshes with the first gear (15).

4. A single-arm, tilting-arm, tilting-column type window cleaning machine according to claim 1, characterized in that: The column support rod (12) is provided with a rectangular opening, and a hoist (13) is installed in the rectangular opening. A lifting box (10) is installed on the right side of the column base (18).

5. A single-arm, tilting-arm, tilting-column type window cleaning machine according to claim 3, characterized in that: The base frame (14) is made of I-beams.

6. A single-arm, tilting-arm, tilting-column type window cleaning machine according to claim 1, characterized in that: The rotatable connection position of the column body (19) and the column base (18) is higher than the rotatable connection position of the column support rod (12) and the column base (18).

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