Anti-rotation aerial work platform

Abstract

The utility model discloses an 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 work arm support through a swing oil cylinder, the work arm support is connected with the work platform through an anti-rotation device, and the anti-rotation device comprises a fixed shaft arranged on the work arm support. The left support and the right support are arranged at the two ends of the fixing shaft correspondingly, so that the working platform and the swing oil cylinder form a left triangular supporting mechanism and a right triangular supporting mechanism, when the working platform is subjected to counter-acting force, the working platform can be supported, damage to the swing oil cylinder is reduced, and the swing oil cylinder needs to be used for driving the working platform to rotate; the high positioning column and the low positioning column are arranged on the left side and the right side of the working platform correspondingly, the gasket and the positioning pin are arranged correspondingly to achieve positioning and storage, the working platform is located in the inner space of the working platform in the storage state, and normal rotating work of the working platform cannot be intervened.

Description

Technical Field

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

[0002] An aerial work platform is a product for mobile aerial work, equipment installation, maintenance, etc. 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 in 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 of the operator on the work platform during construction, the existing aerial work platform is usually equipped with a swing oil cylinder that can rotate the work platform. The swing oil cylinder can rotate according to the actual application needs 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 and technical personnel. 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 constructing under harsh working conditions, such as when performing surface sandblasting construction, due to the large pressure of the spray gun, the large reaction force 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 is damaged when the aerial work platform in the prior art is strongly impacted or the operator is constructing under harsh working conditions, the utility model provides an anti-rotation aerial work platform.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an anti-rotation aerial work platform, which includes a work platform. The work platform is installed on a working boom through a swing oil cylinder. The working boom is connected to the work platform through an anti-rotation device. The anti-rotation device includes a fixed shaft arranged on the working boom. Left and right brackets are respectively arranged at both ends of the fixed shaft. Positioning devices are symmetrically arranged on the work platform with the swing oil cylinder as the axis. The left and right brackets are respectively connected to the positioning devices. The positioning device includes a high positioning column and a low positioning column.

[0006] As a further improvement of the utility model, the left and right brackets have the same structure and are symmetrically arranged.

[0007] As a further improvement of the present utility model, both ends of the left bracket and the right bracket are provided with open slots, both ends of the left bracket and the right bracket are provided with shaft holes, and both middle parts of the left bracket and the right bracket are provided with round holes.

[0008] As a further improvement of the present utility model, the cross-sections of the left bracket and the right bracket are both in the shape of symmetric grooves.

[0009] As a further improvement of the present utility model, positioning holes are provided at both ends of the fixed shaft, one end of the high positioning column, and one end of the low positioning column, and positioning pins are installed on the positioning holes.

[0010] As a further improvement of the present utility model, washers are provided at the ends of the fixed shaft, the high positioning column, and the low positioning column.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: In this solution, by arranging the left bracket and the right bracket on the left and right sides of the working platform, two triangular support mechanisms are formed between the working platform and the swing oil cylinder. When the working platform is subjected to the above-mentioned reaction force, it can support the working platform, further preventing the working platform from rotating abnormally due to the large generated reaction force, thereby reducing damage to the swing oil cylinder and reducing the impact on the construction safety of the operator on the working platform. When it is necessary to use the swing oil cylinder to drive the working platform to rotate for operation, the high positioning column and the low positioning column are respectively arranged on the left and right sides of the working platform for placement, and washers and positioning pins are respectively installed to achieve positioning and storage, and the storage state is in the internal space of the working platform, which will not interfere with the normal rotation of the working platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0013] Figure 1 It is a schematic structural diagram of an anti-rotation aerial work platform of the present utility model.

[0014] Figure 2 It is a partial enlarged view of the present utility model.

[0015] Figure 3 It is a schematic structural diagram of the left bracket and the right bracket of the present utility model.

[0016] Figure 4 It is a schematic structural diagram of the storage state of the present utility model.

[0017] In the figure: 1, working platform; 2, swing oil cylinder; 3, working boom; 4, anti-rotation device; 5, left bracket; 51, open slot; 52, round hole; 53, shaft hole; 6, fixed shaft; 7, washer; 8, positioning pin; 9, right bracket; 10, high positioning column; 11, low positioning column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] For the technical solution and beneficial effects of the present utility model to be more clearly understood, the present utility model will be further described in detail below with reference to specific embodiments.

[0019] Referring to Figures 1 to 4 , an anti-rotation aerial work platform according to an embodiment of the present utility model is disclosed, which includes a work platform 1. The work platform 1 is installed on a working boom 3 through a swing oil cylinder 2. The working boom 3 is connected to the work platform 1 through an anti-rotation device 4. The anti-rotation device 4 includes a fixed shaft 6 provided on the working boom 3. Left brackets 5 and right brackets 9 are respectively provided at both ends of the fixed shaft 6. Positioning devices are symmetrically provided on the work platform 1 with the swing oil cylinder 2 as the axis. The left bracket 5 and the right bracket 9 are respectively connected to the positioning devices. The positioning devices include a high positioning column 10 and a low positioning column 11.

[0020] Among them, the left bracket 5 and the right bracket 9 have the same structure and are symmetrically arranged. The cross-sections of the left bracket 5 and the right bracket 9 are both in the shape of a symmetric groove. Open slots 51 are provided at one end of the left bracket 5 and the right bracket 9. Shaft holes 53 are provided at the other end of the left bracket 5 and the right bracket 9. Circular holes 52 are provided in the middle of the left bracket 5 and the right bracket 9.

[0021] Positioning holes are provided at both ends of the fixed shaft 6, one end of the high positioning column 10, and one end of the low positioning column 11. Positioning pins 8 are installed on the positioning holes. Washers 7 are provided at the ends of the fixed shaft 6, the high positioning column 10, and the low positioning column 11.

[0022] The working boom 3 and the swing oil cylinder 2 are fixed through a pin shaft. The stator turntable of the swing oil cylinder 2 and the end face of the work platform 1 are fixed through screws to form a work platform system that restricts swinging. The left bracket 5 and the right bracket 9 on the side of the working boom 3 are connected through the fixed shaft 6. Washers 7 and positioning pins 8 are provided at both ends of the fixed shaft 6 for limiting. Positioning devices are symmetrically provided on the work platform 1 with the swing oil cylinder 2 as the axis. The positioning devices include a high positioning column 10 and a low positioning column 11. In the initial state, the open slots 51 of the left bracket 5 and the right bracket 9 are respectively installed on the high positioning column 10 of the seat. Positioning holes through which the positioning pins 8 can pass are also provided on the high positioning column 10 and the low positioning column 11 and are assembled in cooperation with the washers 7. By providing the left bracket 5 and the right bracket 9 on the left and right sides of the working boom 3, and the shaft holes 53 of the left bracket 5 and the right bracket 9 are correspondingly installed with the fixed shaft 6, the work platform 1 and the swing oil cylinder 2 form two triangular support mechanisms on the left and right. When the work platform 1 is subjected to a reaction force, it can support the work platform 1, further avoiding the abnormal rotation of the work platform 1 driven by the large generated reaction force, thereby reducing damage to the swing oil cylinder 2 and reducing the impact on the construction safety of the operator on the work platform 1.

[0023] When the operator on the working platform 1 is performing other normal construction operations, it may be necessary to use the swing oil cylinder 2 to drive the working platform 1 to rotate. In this case, the swing oil cylinder 2 needs to be disassembled and stored. After disassembly, it is placed through the high positioning posts 10 and low positioning posts 11 respectively arranged on the left and right sides of the working platform 1. The high positioning post 10 corresponds to the installation opening groove 51, and the low positioning post 11 corresponds to the installation round hole 52. The high positioning post 10 and the low positioning post 11 are respectively provided with positioning holes through which the positioning pins 8 can pass and are assembled with washers 7 to achieve positioning and storage. Moreover, the storage state is in the internal space of the working platform 1, and it will not interfere with the normal rotation of the working platform 1.

[0024] 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 fall within the scope of protection of the present invention.

Claims

1. An anti-rotation aerial work platform, characterized in that: It includes an operation platform (1). The operation platform (1) is installed on a working boom (3) through a swing oil cylinder (2). The working boom (3) is connected to the operation platform (1) through an anti-rotation device (4). The anti-rotation device (4) includes a fixed shaft (6) provided on the working boom (3). Left and right brackets (5) and (9) are respectively provided at both ends of the fixed shaft (6). Positioning devices are symmetrically provided on the operation platform (1) with the swing oil cylinder (2) as the axis. The left and right brackets (5) and (9) are respectively connected to the positioning devices. The positioning devices include a high positioning column (10) and a low positioning column (11).

2. The anti-rotation aerial work platform according to claim 1, characterized in that: The left bracket (5) and the right bracket (9) have the same structure and are symmetrically arranged.

3. The anti-rotation aerial work platform according to claim 2, characterized in that: Open slots (51) are provided at one end of both the left bracket (5) and the right bracket (9). Shaft holes (53) are provided at the other end of both the left bracket (5) and the right bracket (9). Round holes (52) are provided in the middle of both the left bracket (5) and the right bracket (9).

4. The anti-rotation aerial work platform according to claim 3, characterized in that: The cross-sections of both the left bracket (5) and the right bracket (9) are of a symmetrically grooved shape.

5. The anti-rotation aerial work platform according to claim 4, characterized in that: Positioning holes are provided at both ends of the fixed shaft (6), one end of the high positioning column (10), and one end of the low positioning column (11). Positioning pins (8) are installed on the positioning holes.

6. The anti-rotation aerial work platform according to claim 5, characterized in that: Washers (7) are provided at the ends of the fixed shaft (6), the high positioning column (10), and the low positioning column (11).

Images