Foldable anti-tip support device for aerial work platforms

Abstract

The application discloses a foldable anti-tilting supporting device of a high-altitude operation platform, and belongs to the field of high-altitude operation platforms. The foldable anti-tilting supporting device of the high-altitude operation platform comprises a mounting seat used for being fixedly installed on the side of a base of the high-altitude operation platform through bolts, a supporting leg upper shank hinged to the mounting seat, a hydraulic push rod used for driving the supporting leg upper shank to be folded and unfolded and hinged to the mounting seat and the supporting leg upper shank at two ends respectively, a fish-eye shaft fixedly installed on a movable end of the supporting leg upper shank, and a supporting leg lower shank fixedly connected with an inner ring of the fish-eye shaft. The foldable anti-tilting supporting device of the high-altitude operation platform is provided with adjustable foot assemblies, when soft ground or unilateral load is encountered, the position of a movable plate can be adjusted by using an electric bidirectional push rod according to the information fed back by a pressure sensor, the contact area with the ground is increased, the pressure is effectively dispersed, and the foot is prevented from sinking.

Description

Technical Field

[0001] This application relates to the field of aerial work platform technology, specifically a foldable anti-tilt support device for aerial work platforms. Background Technology

[0002] An aerial work platform is a type of mechanical equipment specifically designed for tasks such as work, maintenance, installation, or inspection in high-altitude environments. By providing a stable and safe working platform, it enables operators to safely and efficiently reach and complete high-altitude work tasks.

[0003] Aerial work platforms are typically equipped with anti-tipping outriggers. These outriggers unfold during operation to enhance anti-tipping capabilities and fold down to reduce size when moving or not in operation. However, the small foot area of ​​these folding outriggers usually requires a high degree of ground flatness. On soft ground (such as mud), the foot area of ​​the outriggers may sink, making it difficult to balance multiple outrigger units and maintain dynamic balance when the aerial work platform is under load on one side, thus creating safety hazards.

[0004] Therefore, this application provides a foldable anti-tilt support device for aerial work platforms to solve the above problems. Utility Model Content

[0005] This application provides a foldable anti-tilt support device for aerial work platforms, which aims to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a foldable anti-tilt support device for an aerial work platform, comprising a mounting base for being fixedly installed on the side of the base of the aerial work platform by bolts, a leg thigh hinged to the mounting base, a hydraulic push rod with both ends hinged to the mounting base and the leg thigh for driving the leg thigh to retract and unfold, a fisheye shaft fixedly installed on the movable end of the leg thigh, a leg calf fixedly connected to the inner ring of the fisheye shaft, a connecting column connected to the end of the leg calf away from the fisheye shaft, and a foot assembly fixedly connected to the other end of the connecting column, wherein a pressure sensor connected to an external control system is fixedly installed between the leg calf and the connecting column.

[0007] The foot assembly includes a fixed plate fixedly connected to the connecting column, a pair of movable plates symmetrically sliding at both ends of the fixed plate and moving away from or close to each other, and an electrically operated bidirectional push rod fixedly installed at the center of the inner side of the fixed plate and connected at both ends to the two movable plates respectively. The electrically operated bidirectional push rod is connected to an external control system. Thus, by setting an adjustable foot assembly, when encountering soft ground or unilateral load, the position of the movable plates can be adjusted using the electrically operated bidirectional push rod based on information from pressure sensors, increasing the contact area with the ground, effectively dispersing pressure, and preventing the foot from sinking. Simultaneously, based on information from pressure sensors of various support devices, the hydraulic push rod can also dynamically compensate for load changes during operation of the aerial work platform.

[0008] Preferably, a corrugated rubber pad for covering the opening of the fixed plate is fixedly connected between the two movable plates.

[0009] Preferably, the bottom surface of each movable plate is provided with corrugated grooves.

[0010] Preferably, each of the movable plates has symmetrically formed sliding grooves, and each of the fixed plates has a guide rail corresponding to the sliding groove fixedly connected to its inner side.

[0011] Preferably, a plurality of triangular reinforcing ribs arranged in a ring array are welded between the side of the connecting column and the top surface of the fixing plate.

[0012] Preferably, the outer ring of the fisheye shaft is welded to the movable end of the thigh of the support leg, and the movable end of the thigh of the support leg has a movable groove for accommodating the movement of the lower leg of the support leg.

[0013] The foldable anti-tilt support device of this aerial work platform, through the setting of adjustable foot components, uses electric bidirectional push rods to adjust the position of the movable plate when encountering soft ground or unilateral load, increasing the contact area with the ground, effectively dispersing pressure, preventing the feet from sinking, and greatly enhancing the anti-tilt capability of the aerial work platform under complex ground conditions.

[0014] The foldable anti-tilt support device of this aerial work platform can dynamically compensate for load changes by using hydraulic push rods based on the information fed back by pressure sensors of each support device. This solves the problem that existing folding support legs are difficult to maintain dynamic balance on soft ground and under unilateral load, reduces safety hazards caused by unstable support, and provides operators with a safer working environment at height. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a foldable anti-tilt support device for an aerial work platform; Figure 2A schematic diagram of the internal structure of the fixing plate of a foldable anti-tilt support device for an aerial work platform; Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle.

[0016] In the picture: 1. Mounting base; 2. Support leg thigh; 21. Movable groove; 3. Hydraulic push rod; 4. Fisheye shaft; 5. Outrigger lower leg; 6. Connecting column; 61. Triangular reinforcing rib; 7. Pressure sensor; 8. Foot assembly; 81. Fixing plate; 811. Guide rail; 82. Movable plate; 821. Corrugated groove; 822. Slide groove; 83. Electric bidirectional push rod; 84. Corrugated rubber pad. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] This embodiment provides a foldable anti-tilt support device for an aerial work platform, such as... Figures 1-3 As shown, the foldable anti-tilt support device of the aerial work platform includes a mounting base 1 for fixing to the side of the base of the aerial work platform by bolts, a leg thigh 2 hinged to the mounting base 1, a hydraulic push rod 3 with both ends hinged to the mounting base 1 and the leg thigh 2 respectively for driving the leg thigh 2 to retract and unfold, a fisheye shaft 4 fixedly installed at the movable end of the leg thigh 2, a leg calf 5 fixedly connected to the inner ring of the fisheye shaft 4, a connecting column 6 connected to the end of the leg calf 5 away from the fisheye shaft 4, and a foot assembly 8 fixedly connected to the other end of the connecting column 6. A pressure sensor 7 connected to an external control system is fixedly installed between the leg calf 5 and the connecting column 6.

[0019] The foot assembly 8 includes a fixed plate 81 fixedly connected to the connecting column 6, a pair of movable plates 82 symmetrically sliding at both ends of the fixed plate 81 and moving away from or close to each other, and an electric bidirectional push rod 83 fixedly installed at the center of the inner side of the fixed plate 81 and connected to the two movable plates 82 at both ends respectively. The electric bidirectional push rod 83 is connected to an external control system.

[0020] When the aerial work platform is in use, the ground conditions are observed before operation. If the ground is loose, the electric bidirectional push rod 83 is controlled by the external control system to move the two movable plates 82 away from each other, increasing the contact area with the ground. At the same time, the external control system controls the hydraulic push rod 3 to extend, pushing the outrigger thigh 2 to rotate around the hinge point with the mounting base 1, gradually unfolding it to the working position to contact the ground. At this time, according to the pressure information transmitted back by different foot components 8, different stroke commands are assigned to the hydraulic push rod 3 to balance the support force. During operation, the pressure sensor 7 continuously monitors the pressure changes, and the external control system adjusts the action of the hydraulic push rod 3 in real time according to the pressure changes to ensure that the foot components 8 always maintain a stable support state and maintain the dynamic balance of the aerial work platform.

[0021] Furthermore, a corrugated rubber pad 84 is fixedly connected between the two movable plates 82 to cover the opening of the fixed plate 81. When the electric bidirectional push rod 83 drives the two movable plates 82 to move away from or closer to each other, the corrugated rubber pad 84 extends or retracts accordingly. As the movable plates 82 expand to increase their contact area with the ground, the corrugated rubber pad 84 simultaneously expands to cover the opening of the fixed plate 81, forming a complete support surface in contact with the ground. The corrugated rubber pad 84 covering the opening of the fixed plate 81 can effectively prevent dust, sand and other debris from entering the foot assembly 8, avoiding damage or jamming of internal parts such as the electric bidirectional push rod 83, and extending the service life of the device.

[0022] Specifically, the bottom surface of the movable plate 82 is provided with corrugated grooves 821; the corrugated grooves 821 increase the coefficient of friction between the bottom surface of the movable plate 82 and the ground, and can effectively prevent the movable plate 82 from sliding on soft ground or slopes. Especially on soft ground, it can effectively improve the bearing capacity of the footing, improve the stability of the aerial work platform, and reduce the risk of tipping over due to sliding.

[0023] Specifically, each movable plate 82 is symmetrically provided with a sliding groove 822, and each fixed plate 81 is fixedly connected with a guide rail 811 corresponding to the sliding groove 822; this makes the movement of the movable plate 82 more stable, avoids damage to the device caused by the impact force generated by the unstable movement, and also helps to improve the overall stability of the aerial work platform.

[0024] Furthermore, several triangular reinforcing ribs 61 arranged in a circular array are welded between the side of the connecting column 6 and the top surface of the fixing plate 81. When the connecting column 6 is subjected to force from the outrigger 5, the triangular reinforcing ribs 61 can distribute these forces to the fixing plate 81. At the same time, the force on the fixing plate 81 can also be transmitted to the connecting column 6 through the triangular reinforcing ribs 61, which increases the reliability of the device. When the aerial work platform is subjected to a large load or encounters complex working conditions, it can ensure that the foot assembly 8 works normally and provides stable support for the aerial work platform.

[0025] Specifically, the outer ring of the fisheye shaft 4 is welded to the movable end of the leg thigh 2, and the movable end of the leg thigh 2 is provided with a movable groove 21 to accommodate the movement of the leg calf 5. When the leg calf 5 rotates around the fisheye shaft 4, the movable groove 21 provides space for the rotation of the leg calf 5, allowing the leg calf 5 to swing freely within a certain angle range and avoid interference.

[0026] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A foldable anti-tilt support device for an aerial work platform, characterized in that: The system includes a mounting base (1) for bolting to the side of the base of the aerial work platform, a leg thigh (2) hinged to the mounting base (1), a hydraulic push rod (3) hinged at both ends to the mounting base (1) and the leg thigh (2) for driving the leg thigh (2) to retract and extend, a fisheye shaft (4) fixedly installed at the movable end of the leg thigh (2), a leg calf (5) fixedly connected to the inner ring of the fisheye shaft (4), a connecting column (6) connected to the end of the leg calf (5) away from the fisheye shaft (4), and a foot assembly (8) fixedly connected to the other end of the connecting column (6). A pressure sensor (7) connected to an external control system is fixedly installed between the leg calf (5) and the connecting column (6). The foot assembly (8) includes a fixed plate (81) fixedly connected to the connecting column (6), a pair of movable plates (82) symmetrically sliding at both ends of the fixed plate (81) and moving away from or close to each other, and an electric bidirectional push rod (83) fixedly installed at the center of the inner side of the fixed plate (81) and connected at both ends to the two movable plates (82), wherein the electric bidirectional push rod (83) is connected to an external control system.

2. The foldable anti-tilt support device for an aerial work platform according to claim 1, characterized in that: A corrugated rubber pad (84) for covering the opening of the fixed plate (81) is fixedly connected between the two movable plates (82).

3. The foldable anti-tilt support device for an aerial work platform according to claim 2, characterized in that: The bottom surface of each movable plate (82) is provided with corrugated grooves (821).

4. The foldable anti-tilt support device for an aerial work platform according to claim 3, characterized in that: Each of the movable plates (82) is symmetrically provided with sliding grooves (822), and each of the fixed plates (81) is fixedly connected with a guide rail (811) corresponding to the sliding groove (822).

5. The foldable anti-tilt support device for an aerial work platform according to claim 4, characterized in that: A number of triangular reinforcing ribs (61) arranged in a ring array are welded between the side of the connecting column (6) and the top surface of the fixing plate (81).

6. The foldable anti-tilt support device for an aerial work platform according to claim 5, characterized in that: The outer ring of the fisheye shaft (4) is welded to the movable end of the thigh (2) of the support leg, and the movable end of the thigh (2) of the support leg is provided with a movable groove (21) for accommodating the movement of the lower leg (5).

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