A fixed overhanging platform for window cleaning machines

Abstract

The utility model discloses a fixed cantilever platform for window cleaning machine, including installation platform main part, the lower extreme fixed connection of installation platform main part has the I -beam, the I -beam is hollow structure, two support counterweight bars are slidably connected in the I -beam, the opposite side of two support counterweight bars is fixedly connected with counterweight platform and cantilever platform main body respectively, the upper end fixed connection of I -beam has two vertical rods, two vertical rods pass through installation platform main part, two support counterweight bars's front and back both sides all are rotatably connected with the diagonal pull rod, every diagonal pull rod is rotatably connected with corresponding vertical rod. The utility model can monitor the weighing machine mechanism of two end loads in real time respectively. Through accurate data feedback, fundamentally prevent the platform inclination caused by the uneven weight of two ends, carry out early warning and intervention before the security risk occurs, thereby essentially improve the safety level of equipment.

Description

Technical Field

[0001] This utility model relates to the field of window cleaning machine technology, and in particular to a fixed cantilever platform for window cleaning machines. Background Technology

[0002] The increasing number of high-rise and super high-rise buildings has greatly promoted the development of high-altitude work equipment such as window cleaning machines. As a key load-bearing and working component of window cleaning machines, the stability and safety of the fixed cantilever platform are directly related to the normal operation of the entire equipment and the safety of the workers.

[0003] Currently, common fixed cantilever platforms typically employ a basic structure of "installation platform main body + cantilever beam," and balance the overturning moment generated by cantilever operations by setting a fixed counterweight on one side of the building main body. However, this traditional structure has many inherent defects: First, the counterweights are mostly fixed or require cumbersome manual adjustment, making them unable to adapt to dynamic load changes at the cantilever end caused by the movement of the suspended platform and changes in personnel and materials, posing a risk of balance failure. More critically, existing equipment completely lacks real-time, accurate monitoring of the stress state at both ends of the platform (i.e., the counterweight end and the cantilever end). Operators cannot quantify the significant weight difference between the two ends, relying only on visual observation or taking remedial measures after a noticeable tilt occurs, resulting in extremely inadequate safety warning capabilities. This potential overturning risk caused by "uneven weight distribution" is the biggest safety hazard of traditional platforms.

[0004] Therefore, it is necessary to design a fixed cantilever platform for window cleaning machines 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 fixed cantilever platform for window cleaning machines. This invention features a weighing mechanism that monitors the load at both ends in real time. Through precise data feedback, it fundamentally prevents platform tilting caused by uneven weight distribution at both ends, providing early warning and intervention before safety hazards occur, thereby fundamentally improving the safety level of the equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fixed cantilever platform for a window cleaning machine includes a main body for mounting the platform. An I-beam is fixedly connected to the lower end of the main body. The I-beam is a hollow structure, and two supporting counterweight rods are slidably connected inside the I-beam. A counterweight platform and the cantilever platform main body are fixedly connected to opposite sides of the two supporting counterweight rods, respectively. Two vertical rods are fixedly connected to the upper end of the I-beam, penetrating the main body of the platform. Diagonal tie rods are rotatably connected to the front and rear sides of the two supporting counterweight rods. Each diagonal tie rod is rotatably connected to a corresponding vertical rod. The two vertical rods are U-shaped steel, and each vertical rod contains a weighing component.

[0007] Preferably, the weighing assembly includes a stop block fixedly connected to a vertical rod, a vertical pull rod slidably connected through the stop block, a ring fixedly connected to the lower end of the vertical pull rod, the ring and the stop block being elastically connected by a weighing spring, a connecting plate installed at the upper end of the vertical pull rod, and wedge sleeves rotatably connected to both the front and rear sides of the connecting plate, with pull ropes fixedly connected to both wedge sleeves.

[0008] Preferably, the vertical tie rod is threaded with two nuts, and a fixing block is provided between the two nuts. A pin is fixedly connected to the upper end of the fixing block.

[0009] Preferably, a sleeve is installed at the upper end of each of the two vertical rods, and the upper ends of the two pull ropes pass through the sleeve.

[0010] Preferably, each of the two supporting counterweight rods is provided with two first fixing holes, and the I-beam is provided with two second fixing holes, and the two first fixing holes and the two fixing holes are threaded together with fixing bolts.

[0011] Preferably, limit switches are installed on both of the vertical rods.

[0012] Compared with existing technologies, the advantages of this device are: Compared with existing technologies, this device uses a sliding connection structure between the I-beam and the supporting counterweight rod, along with a detachable locking design for the first and second fixing holes and fixing bolts, which allows for rapid on-site assembly of the cantilever platform. Compared with existing technologies, this device is equipped with a weighing component consisting of a vertical tie rod, a weighing spring, a pin, and a limit switch inside the vertical rod. It can sense changes in platform load in real time. When the load exceeds the safe range, the weighing spring is compressed, which drives the pin to trigger the limit switch, issuing an early warning or cutting off the operating power in time. At the same time, the cooperation between the wedge sleeve and the pull rope can further enhance the stability of load transmission, upgrading from "passive remediation" to "active prevention", and significantly reducing the risk of overturning accidents. Compared with existing technologies, this device not only achieves reliable fixation of the support counterweight rod and the I-beam through fixing bolts, but also adds diagonal tie rods on the front and rear sides of the support counterweight rod and rotates them with the vertical rods to form a triangular stable support structure, which effectively disperses the lateral forces and vibration loads during operation and avoids structural displacement caused by loose bolts. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a fixed cantilever platform for a window cleaning machine proposed in this utility model; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 for Figure 1 A schematic diagram of the bottom structure.

[0014] In the diagram: 1. Main body of the installation platform; 2. Supporting counterweight rod; 3. Diagonal tie rod; 4. Counterweight platform; 5. Vertical rod; 6. Wedge sleeve; 7. Vertical tie rod; 8. Limit switch; 9. Nut; 10. Weighing spring; 11. Stop block; 12. I-beam; 13. Main body of the cantilever platform. Detailed Implementation

[0015] 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.

[0016] Reference Figures 1-4 A fixed cantilever platform for a window cleaning machine includes a mounting platform body 1. An I-beam 12 is fixedly connected to the lower end of the mounting platform body 1. The I-beam 12 is a hollow structure. Two supporting counterweight rods 2 are slidably connected inside the I-beam 12. A counterweight platform 4 and the cantilever platform body 13 are fixedly connected to the opposite sides of the two supporting counterweight rods 2, respectively. Two vertical rods 5 are fixedly connected to the upper end of the I-beam 12. The two vertical rods 5 penetrate the mounting platform body 1. Diagonal tie rods 3 are rotatably connected to the front and rear sides of the two supporting counterweight rods 2. Each diagonal tie rod 3 is rotatably connected to the corresponding vertical rod 5. The two vertical rods 5 are U-shaped steels, and each vertical rod 5 is equipped with a weighing component.

[0017] The weighing assembly includes a stop block 11 fixedly connected to the vertical rod 5. A vertical pull rod 7 is slidably connected through the stop block 11. A ring is fixedly connected to the lower end of the vertical pull rod 7. The ring and the stop block 11 are elastically connected by a weighing spring 10. A connecting plate is installed at the upper end of the vertical pull rod 7. Wedge sleeves 6 are rotatably connected to both the front and rear sides of the connecting plate. Pull ropes are fixedly connected to both wedge sleeves 6. Sleeves are installed at the upper ends of both vertical rods 5. The upper ends of the two pull ropes pass through the sleeves and are connected to the window cleaning machine or the hanging basket.

[0018] The vertical tie rod 7 has two nuts 9 threadedly connected to it. A fixing block is provided between the two nuts 9. A pin is fixedly connected to the upper end of the fixing block, so that the nuts 9 can be rotated to adjust the distance between the pin and the limit switch 8. Limit switches 8 are installed on both vertical rods 5. When the pin contacts the limit switch 8, the limit switch 8 immediately issues an audible and visual warning signal and can also cut off the lifting power supply of the window cleaning machine or the hanging basket, forcibly stopping the lifting action.

[0019] Each of the two supporting counterweight rods 2 has two first fixing holes, and the I-beam 12 has two second fixing holes. The two first fixing holes and the two second fixing holes are connected by a fixing bolt through a thread.

[0020] The functional principle of this utility model can be explained through the following operation: Before operation, first complete the connection between the weighing component and the window cleaning machine or the suspended platform—connect the pull ropes on the wedge sleeves 6 on both sides of the upper end connecting plate of the vertical pull rod 7 to the preset connection points of the window cleaning machine body or the suspended platform, ensuring that the pull rope connection is firm and without looseness; then check the status of the weighing component inside the vertical rod 5: ensure that the vertical pull rod 7 passes through the stop block 11 and slides smoothly, and that the weighing spring 10 is free from rust or deformation; by adjusting the two nuts 9 on the vertical pull rod 7, drive the fixed block and the pin to move, set the safety distance between the pin and the limit switch 8 (calculated according to the rated load of the equipment, usually set to trigger the limit switch 8 when the load reaches 90% of the rated value), and complete the load warning threshold adjustment; When the main body 13 of the cantilever platform is lifted by the window cleaning machine or the suspended platform, the window cleaning machine or the suspended platform applies an upward pulling force to the wedge sleeve 6 through the pull rope, which drives the vertical pull rod 7 to slide upward along the stop block 11. At this time, the ring at the lower end of the vertical pull rod 7 moves upward synchronously, so that the weighing spring 10 between the ring and the stop block 11 is compressed. The reaction force generated by the spring deformation is balanced with the pull rope tension (i.e., the weight of the cantilever platform and the load). The fixed block moves upward synchronously with the vertical pull rod 7. If the load of the cantilever platform exceeds the safety threshold, the upward movement of the vertical pull rod 7 increases, and the pin touches the limit switch 8. The limit switch 8 immediately issues an audible and visual warning signal and can also cut off the lifting power supply of the window cleaning machine or the suspended platform, forcibly stopping the lifting action and avoiding structural damage or the risk of falling due to overload.

[0021] After the operation is completed, first control the window cleaning machine or the basket to lower the cantilever platform body 13 so that the tension of the pull rope gradually decreases until it disappears; at this time, the weighing spring 10 returns to its natural state, pulls the vertical pull rod 7 to slide down and reset, the pin disengages from the limit switch 8, and the limit switch 8 releases the warning state; then remove the personnel and tools on the cantilever platform body 13, clear the counterweight on the counterweight platform 4, and complete the device reset.

[0022] 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.

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