Telescopic platform mechanism with angle adjustment function

Abstract

The utility model relates to the technical field of airport ground equipment, in particular to a telescopic platform mechanism with an angle adjustment function, which comprises a fixed platform, a telescopic bottom frame, a platform cross beam, a telescopic oil cylinder, an angle deflection electric push rod, a support hinge and a platform cover plate, the telescopic oil cylinder takes the fixed platform tail cross beam as a base, a telescopic bottom frame is hinged in front of an oil cylinder rod, the telescopic bottom frame is driven to stretch forwards and drill out of the fixed platform front cross beam, and when the single-side included angle between the platform cross beam and the aircraft cabin face is large, the angle deflection electric push rod is driven to stretch out and draw back; according to the telescopic platform mechanism, the telescopic function of the movable platform is achieved, the angle of the platform can be actively adjusted, manual adjustment is not needed, operation is easy and convenient, large angle deviation is found in the telescopic process, the left-right included angle can be automatically adjusted, and the requirement for uniform and small gaps is met; the purpose of safe operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of airport ground equipment, in particular to a telescopic platform mechanism with angle adjustment. Background Art

[0002] Airport ground equipment is required to have a movable platform installed at any point where it comes into contact with an aircraft door. These platforms typically feature telescopic functionality, allowing them to extend closer to the aircraft door for easier passenger entry and exit, or for staff to work. Because aircraft doors are high off the ground, a large gap between the platform and the aircraft deck can create a risk of falling. Therefore, aerial platforms generally require a uniform and minimal gap between the platform and the aircraft deck.

[0003] Most platforms in the industry use hydraulic cylinders to extend and retract. The front hinge point of the hydraulic cylinder serves as the fulcrum for left and right adjustment of the platform. Two balancing springs are installed on either side of the hydraulic cylinder, connecting the platform frame to the platform crossbeam to ensure balanced extension and retraction of the platform. If one side of the crossbeam contacts the aircraft deck, the hydraulic cylinder continues to extend and retract, bringing the other side closer and achieving passive balancing of the platform.

[0004] However, the movable platform beam is provided with a travel switch or a proximity switch. Once triggered, the movable platform is prohibited from extending forward and cannot achieve passive balance. Therefore, the staff needs to manually pull the movable platform beam to adjust the angle, which is more troublesome to operate. Utility Model Content

[0005] The purpose of the utility model is to provide a telescopic platform mechanism with angle adjustment, aiming to solve the problem that after the travel switch of the movable platform beam is triggered, the staff needs to manually adjust the angle of the movable platform beam, which is a relatively troublesome operation.

[0006] To achieve the above-mentioned objectives, the utility model provides a telescopic platform mechanism with angle adjustment, comprising a fixed platform, a telescopic bottom frame, a platform beam, a telescopic oil cylinder, an angle deflection electric push rod, a support hinge and a platform cover; the telescopic bottom frame is arranged on one side of the fixed platform, the platform beam is arranged on one side of the telescopic bottom frame, the telescopic oil cylinder is fixedly connected to the fixed platform, and is hinged to the telescopic bottom frame, and is located on one side of the telescopic bottom frame and the fixed platform, the angle deflection electric push rod is fixedly connected to the fixed platform, and is slidably connected to the platform beam, and is located between the platform beam and the fixed platform, the support hinge is arranged between the fixed platform and the platform beam, and the platform cover is arranged on one side of the fixed platform and the platform beam.

[0007] Wherein, the fixed platform has channel steel guide rails, and the channel steel guide rails are located on both sides of the telescopic bottom frame.

[0008] Wherein, the platform crossbeam has an angle adjustment slide rail, and the angle adjustment slide rail is located on the side of the platform crossbeam close to the fixed platform.

[0009] Wherein, the fixed platform further has a balancing tension spring, and the balancing tension spring is located between the fixed platform and the angle adjustment slide rail.

[0010] Wherein, the telescopic bottom frame has a front nylon sleeve, and the front nylon sleeve is arranged on a side of the telescopic bottom frame close to the platform beam.

[0011] The utility model discloses a telescopic platform mechanism with angle adjustment. When a vehicle approaches an aircraft cabin door and the legs are lowered, the extension button switch of the fixed platform is pressed, and the cylinder rod of the telescopic oil cylinder extends. The cylinder rod uses the tail beam of the fixed platform as a base, and the front of the cylinder rod is hinged to the telescopic bottom frame. The telescopic bottom frame is driven to move forward and drilled out from the front beam of the fixed platform. A horizontally rotating ear seat is arranged in front of the telescopic bottom frame, and a connecting ear plate is arranged in the middle of the rear of the platform beam. The ear seat and the ear plate are connected by a pin shaft, which plays a role in transmitting the front and rear driving force and supporting the platform beam up and down. When the unilateral angle between the platform beam and the aircraft deck is large, the left and right deflection switches are operated to drive the angle deflection electric push rod to extend and retract, and the angle When the deflection electric push rod is extended to the top, the platform beam is pushed to rotate counterclockwise to the left with the middle ear plate of the platform beam as the center to reduce the right angle. The stroke of the angle deflection electric push rod is limited and the rotation angle must meet the industry standard requirements. The angle deflection electric push rod is self-locking and can maintain the deflection angle continuously. In addition to realizing the telescopic function of the movable platform, the telescopic platform mechanism can also actively adjust the platform angle without the need for workers to adjust it. The operation is simple and convenient. If the angle deviation is large during the telescopic process, the left and right angles can be automatically adjusted to meet a uniform and small gap, thereby achieving the purpose of safe operation. This solves the problem that after the movable platform beam travel switch is triggered, the staff needs to manually adjust the angle of the movable platform beam, which is a more troublesome operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0013] Figure 1 The utility model is a structural schematic diagram of a telescopic platform mechanism with angle adjustment.

[0014] Figure 2 It is a structural schematic diagram of another direction of a telescopic platform mechanism with angle adjustment of the utility model.

[0015] In the figure: 1-fixed platform, 2-telescopic bottom frame, 3-platform beam, 4-telescopic cylinder, 5-angle deflection electric push rod, 6-support hinge, 7-front support nylon sleeve, 8-platform cover, 9-channel steel guide rail, 10-angle adjustment slide rail, 11-balance spring. DETAILED DESCRIPTION

[0016] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0017] See also Figures 1 to 2 The utility model provides a telescopic platform mechanism with angle adjustment, comprising a fixed platform 1, a telescopic bottom frame 2, a platform beam 3, a telescopic oil cylinder 4, an angle deflection electric push rod 5, a support hinge 6 and a platform cover 8; the telescopic bottom frame 2 is arranged on one side of the fixed platform 1, and the platform beam 3 is arranged on one side of the telescopic bottom frame 2; the telescopic oil cylinder 4 is fixedly connected to the fixed platform 1 and hinged to the telescopic bottom frame 2, and is located on one side of the telescopic bottom frame 2 and the fixed platform 1; the angle deflection electric push rod 5 is fixedly connected to the fixed platform 1 and slidably connected to the platform beam 3, and is located between the platform beam 3 and the fixed platform 1; the support hinge 6 is arranged between the fixed platform 1 and the platform beam 3, and the platform cover 8 is arranged on one side of the fixed platform 1 and the platform beam 3.

[0018] In this embodiment, when the vehicle approaches the aircraft door and the legs are lowered, the extension button switch of the fixed platform 1 is pressed, and the cylinder rod of the telescopic cylinder 4 is extended. The cylinder rod uses the tail beam of the fixed platform 1 as a base, and the front of the cylinder rod is hinged to the telescopic bottom frame 2. The telescopic bottom frame 2 is driven to move forward and drilled out from the front beam of the fixed platform 1. A horizontal rotating ear seat is arranged in front of the telescopic bottom frame 2, and a connecting ear plate is arranged in the middle of the rear of the platform beam 3. The ear seat and the ear plate are connected by a pin shaft, which plays a role in transmitting the front and rear driving force and supporting the platform beam 3 up and down. When the unilateral angle between the platform beam 3 and the aircraft deck is large, the left and right deflection switches are operated to drive the angle deflection electric push rod 5 to extend and retract. When the angle deflection electric push rod 5 is extended to the top, the platform The middle ear plate of the beam 3 is the center, which pushes the platform beam 3 to rotate counterclockwise to the left to reduce the right angle. The stroke of the angle deflection electric push rod 5 is limited and must meet the rotation angle requirements of industry standards. The angle deflection electric push rod 5 is self-locking and can maintain the deflection angle continuously. The setting of the support hinge 6 is used to assist the rotation of the platform beam 3. In addition to realizing the telescopic function of the movable platform, the telescopic platform mechanism can also actively adjust the platform angle without the need for workers to adjust it. The operation is simple and convenient. If the angle deviation is large during the telescopic process, the left and right angles can be automatically adjusted to meet a uniform and small gap, thereby achieving the purpose of safe operation. This solves the problem that after the movable platform beam travel switch is triggered, the staff needs to manually adjust the angle of the movable platform beam, which is a more troublesome operation.

[0019] Furthermore, the fixed platform 1 has channel steel guide rails 9 , and the channel steel guide rails 9 are located on both sides of the telescopic bottom frame 2 .

[0020] In this embodiment, two opposite channel steel guide rails 9 are arranged in the fixed platform 1, located on both sides of the telescopic bottom frame 2, supporting the entire telescopic bottom frame 2. The telescopic bottom frame 2 moves linearly back and forth in the channel steel guide rails 9, thereby realizing the movement of the telescopic bottom frame 2 extending out of the fixed platform 1.

[0021] Furthermore, the platform beam 3 has an angle adjustment rail 10, which is located on the side of the platform beam 3 close to the fixed platform 1. The fixed platform 1 also has a balancing spring 11, which is located between the fixed platform 1 and the angle adjustment rail 10.

[0022] In this embodiment, the platform beam 3 is provided with an angle adjustment rail 10 facing the fixed platform 1. When the angle deflection push rod 5 is retracted, the platform beam 3 automatically returns to a parallel position with the fixed platform 1 under the action of the balancing tension spring 11. As the angle deflection push rod 5 continues to retract and reaches its bottom, it pulls the angle adjustment rail 10, causing the platform beam 3 to rotate clockwise to the right, reducing the left angle.

[0023] When the angle deflection electric push rod 5 returns to its neutral position, the platform beam 3, under the action of the balancing tension springs 11 on both sides, returns to its neutral position and becomes parallel to the fixed platform 1. Because the angle adjustment slide rail 10 is designed as a long slide groove, the platform beam 3 can maintain a certain range of autonomy, and the balancing tension springs 11 can achieve autonomous parallelism or passive angle adjustment by machine operation.

[0024] Furthermore, the telescopic bottom frame 2 has a front nylon sleeve 7 , and the front nylon sleeve 7 is arranged on a side of the telescopic bottom frame 2 close to the platform beam 3 .

[0025] In this embodiment, the front nylon sleeves 7 are arranged at the two front corners of the telescopic bottom frame 2 to push up the platform cover 8, thereby increasing the bottom support of the platform cover 8 when it is deformed by force.

[0026] The above disclosure is merely a preferred embodiment of a telescopic platform mechanism with angle adjustment of the present application, and it cannot be used to limit the scope of rights of the present application. A person skilled in the art can understand that all or part of the processes of the above embodiment can be implemented, and equivalent changes made in accordance with the claims of the present application still fall within the scope covered by the present application.

Claims

1. A telescopic platform mechanism with angle adjustment, characterized in that: It includes fixed platform, telescopic bottom frame, platform beam, telescopic oil cylinder, angle deflection electric push rod, support hinge and platform cover; The telescopic bottom frame is arranged on one side of the fixed platform, the platform beam is arranged on one side of the telescopic bottom frame, the telescopic oil cylinder is fixedly connected to the fixed platform, and is hinged to the telescopic bottom frame, and is located on one side of the telescopic bottom frame and the fixed platform, the angle deflection electric push rod is fixedly connected to the fixed platform, and is slidably connected to the platform beam, and is located between the platform beam and the fixed platform, the support hinge is arranged between the fixed platform and the platform beam, and the platform cover is arranged on one side of the fixed platform and the platform beam.

2. The telescopic platform mechanism with angle adjustment according to claim 1, characterized in that: The fixed platform has channel steel guide rails, and the channel steel guide rails are located on both sides of the telescopic bottom frame.

3. The telescopic platform mechanism with angle adjustment according to claim 1, characterized in that: The platform crossbeam is provided with an angle adjustment slide rail, and the angle adjustment slide rail is located on a side of the platform crossbeam close to the fixed platform.

4. The telescopic platform mechanism with angle adjustment according to claim 3, characterized in that: The fixed platform further has a balancing tension spring, and the balancing tension spring is located between the fixed platform and the angle adjustment slide rail.

5. The telescopic platform mechanism with angle adjustment according to claim 1, characterized in that: The telescopic bottom frame has a front nylon sleeve, and the front nylon sleeve is arranged on a side of the telescopic bottom frame close to the platform crossbeam.

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