Additional anti-rotation aerial work platform

Abstract

The utility model discloses an additional anti-rotation aerial work platform, which relates to the technical field of engineering machinery and comprises a work platform, the work platform is mounted on a cantilever support through a swing oil cylinder, and a left positioning bottom plate and a right positioning bottom plate are respectively arranged on two sides of the swing oil cylinder. The left positioning bottom plate and the right positioning bottom plate are fixed to the two sides of the swing oil cylinder through studs arranged in the through holes, fixing nuts are arranged at the ends of the studs, the left positioning bottom plate and the right positioning bottom plate are each provided with a limiting support, and each limiting support is connected with an operation platform through a corresponding locking device. The left positioning bottom plate and the right positioning bottom plate are fixed to the two sides of the swing oil cylinder through the studs arranged in the through holes, the limiting support is connected with the work platform through the corresponding locking devices, so that the work platform, the limiting support and the swing oil cylinder form a stable triangular structure, the structure is simple, disassembly is convenient, and the work platform can be effectively prevented from rotating and shaking.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a retrofit type anti-rotation aerial work platform. Background Art

[0002] An aerial work platform is a product for mobile aerial work such as aerial work, equipment installation, and maintenance in various industries. A work bar is usually installed at the end of the boom of a boom type aerial work platform or an aerial work vehicle, and an operator is located inside the work bar to perform corresponding aerial work. The work bar and the boom support are usually connected by a swing oil cylinder and can rotate within a range of 90° to the left and 90° to the right. In order to facilitate accurate positioning during construction by the operator on the work platform of the existing aerial work platform, a swing oil cylinder for rotating the work platform is usually configured. The swing oil cylinder can rotate according to the actual application requirements of the operator and stop at a specified position. After stopping, since the swing oil cylinder is provided with a balance valve for self-locking, it can prevent the work platform from generating abnormal rotation faults.

[0003] When the work platform of the aerial work is working, it is necessary to always keep the work platform in a stable state to facilitate the operation and construction of engineering technicians. The existing aerial work platform is not provided with a platform anti-rotation device. When a certain position of the work platform is strongly impacted or the operator on the work platform is performing construction under harsh working conditions, such as surface sandblasting construction, due to the large pressure of the spray gun, the large reaction force generated drives the work platform to rotate abnormally, thereby damaging the above-mentioned swing oil cylinder and affecting the construction safety of the operator on the work platform. Summary of the Utility Model

[0004] In order to overcome the defect that the swing oil cylinder of the aerial work platform is damaged when the aerial work platform is strongly impacted or the operator is performing construction under harsh working conditions in the prior art, the utility model provides a retrofit type anti-rotation aerial work platform.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a retrofit type anti-rotation aerial work platform, which includes a work platform. The work platform is installed on a cantilever through a swing oil cylinder. Left and right positioning bottom plates are respectively arranged on both sides of the swing oil cylinder. Through holes are provided in the upper and lower parts of the left and right positioning bottom plates. The left and right positioning bottom plates are fixed on both sides of the swing oil cylinder through double-headed bolts arranged in the through holes. Fixed nuts are arranged at the ends of the double-headed bolts. Limiting brackets are arranged on both the left and right positioning bottom plates. Each limiting bracket is connected to the work platform through a corresponding locking device.

[0006] As a further improvement of the utility model, round holes are provided on the limiting brackets.

[0007] As a further improvement of the utility model, the cross-section of the limit bracket is of a symmetrical groove shape.

[0008] As a further improvement of the utility model, a locking nut is arranged at the end of the locking device.

[0009] Compared with the prior art, the utility model has the following beneficial effects: In this solution, the left positioning base plate and the right positioning base plate are fixed on both sides of the swing cylinder through the double-headed bolts arranged in the through holes, and the other end of the limit bracket is connected to the working platform through the corresponding locking device, so that the working platform, the limit bracket and the swing cylinder form a stable triangular structure, which is simple in structure and convenient for disassembly, can effectively prevent the working platform from rotating and shaking, and reduce the damage to the swing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following further describes the utility model in conjunction with the drawings and specific embodiments.

[0011] Figure 1 FIG. is a structural schematic diagram of an additional anti-rotation aerial work platform of the utility model.

[0012] Figure 2 FIG. is a structural schematic diagram of the limit bracket in the initial state.

[0013] Figure 3 FIG. is a structural schematic diagram of the limit bracket.

[0014] In the figure: 1, working platform; 2, swing cylinder; 3, cantilever frame; 4, left positioning base plate; 5, right positioning base plate; 6, double-headed bolt; 7, fixing nut; 8, round hole; 9, limit bracket; 10, through hole; 11, locking device; 12, locking nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the technical solution and beneficial effects of the utility model clearer, the following further details the utility model with reference to specific embodiments.

[0016] Referring to Figures 1 to 3 , an embodiment of the utility model discloses an additional anti-rotation aerial work platform, including a working platform 1, the working platform 1 is installed on a cantilever frame 3 through a swing cylinder 2, left and right positioning base plates 4 and 5 are respectively arranged on both sides of the swing cylinder 2, through holes 10 are arranged on the upper and lower parts of the left positioning base plate 4 and the right positioning base plate 5, the left positioning base plate 4 and the right positioning base plate 5 are fixed on both sides of the swing cylinder 2 through double-headed bolts 6 arranged in the through holes 10, fixing nuts 7 are arranged at the ends of the double-headed bolts 6, limit brackets 9 are arranged on both the left positioning base plate 4 and the right positioning base plate 5, and each limit bracket 9 is connected to the working platform 1 through a corresponding locking device 11.

[0017] When in use, the working platform 1 is installed on the cantilever frame 3 through the swing oil cylinder 2. Through holes 10 are provided in both the upper and lower parts of the left positioning base plate 4 and the right positioning base plate 5. The left positioning base plate 4 and the right positioning base plate 5 are fixed on both sides of the swing oil cylinder 2 through the double-headed bolts 6 arranged in the through holes 10. Fixing nuts 7 are arranged at the ends of the double-headed bolts 6. The limit bracket 9 is connected to the working platform 1 through the corresponding locking device 11, so that the working platform 1, the limit bracket 9 and the swing oil cylinder 2 form a stable triangular structure, which is simple in structure and convenient for disassembly, can effectively prevent the working platform 1 from rotating and shaking, and reduce the damage to the swing oil cylinder 2.

[0018] When not in use, disassemble the locking device 11, rotate the left positioning base plate 4 and the right positioning base plate 5 by 180 degrees for installation, and rotate the limit bracket 9 to the side of the cantilever frame 3.

[0019] In order to increase the structural strength of the limit bracket 9, round holes are opened for welding use. The locking device 11 is a U-shaped bolt, and a locking nut 12 is arranged at the end of the U-shaped bolt. According to the swing amplitude of the swing oil cylinder 2, the U-shaped bolt can be applicable within a certain angle. When the swing angle is large, a steel wire rope can be used instead of the U-shaped bolt to achieve locking and fixation.

[0020] It should be understood that the specific embodiments described herein are only for understanding the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

Claims

1. An add-on type anti-rotation aerial work platform, characterized in that: It includes an operation platform (1). The operation platform (1) is installed on a cantilever frame (3) through a swing oil cylinder (2). On both sides of the swing oil cylinder (2), there are a left positioning base plate (4) and a right positioning base plate (5) respectively. Through holes (10) are provided in both the upper and lower parts of the left positioning base plate (4) and the right positioning base plate (5). The left positioning base plate (4) and the right positioning base plate (5) are fixed on both sides of the swing oil cylinder (2) through stud bolts (6) arranged in the through holes (10). Limit brackets (9) are provided on both the left positioning base plate (4) and the right positioning base plate (5). Each limit bracket (9) is connected to the operation platform (1) through a corresponding locking device (11).

2. The add-on type anti-rotation aerial work platform according to claim 1, characterized in that: A round hole (8) is provided on the limit bracket (9).

3. The add-on type anti-rotation aerial work platform according to claim 2, characterized in that: The cross-section of the limit bracket (9) is of a symmetric groove shape.

4. The add-on type anti-rotation aerial work platform according to claim 3, characterized in that: A locking nut (12) is provided at the end of the locking device (11).

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