Locking mechanism for boarding passenger stair car support

Abstract

The utility model relates to boarding ladder technical field, concretely relates to a locking mechanism for boarding passenger elevator car support, including base, the hinging of base has boarding ladder main part, the top fixed connection of base has four first guide bar that arranges in rectangle, the common sliding of four first guide bar is equipped with U -shaped plate, the upper surface fixed connection of base surface and U -shaped plate lower surface has spring, the top fixed connection of base has two fixed plate, one fixed plate one side surface fixed mounting has servo motor, the output fixed connection of servo motor has connecting shaft, the middle fixed connection of connecting shaft outside surface surface has rotary plate, the middle part of U -shaped plate is passed through and is opened connection opening, the inside surface transverse of connection opening is provided with two second guide bar;The application can realize the automatic locking of base and boarding ladder main part, save time and improve work efficiency, greatly reduce the labor intensity of staff, and it is favorable to actual promotion.

Description

Technical Field

[0001] This utility model relates to the field of boarding stairs technology, and more specifically, to a locking mechanism for a boarding passenger boarding stairs support. Background Technology

[0002] The boarding boarding stairs support frame is a key structure for ensuring the stability of the boarding stairs and enabling passengers to board safely. It must stably support the stairs, platform, and passenger load. Large boarding stairs need to support the weight of hundreds of passengers. To accommodate the movement needs of the boarding stairs, the support frame typically has wheels at the bottom for easy movement on the airport tarmac and quick docking with the aircraft doors. The support frame is also equipped with locking mechanisms to position the frame after movement, facilitating practical use. However, existing technologies have the following shortcomings in their application:

[0003] Existing locking mechanisms typically consist of four rotatable handles, four threaded rods, and four pressure blocks. When locking the bracket, the operator must manually rotate the four handles in sequence. The four handles drive the four threaded rods to rotate, causing the four pressure blocks to move down and eventually make the lower surfaces of the four pressure blocks fit against the ground. The friction generated by this fit then positions the bracket as a whole. However, manually rotating multiple handles is not only time-consuming and labor-intensive, affecting work efficiency, but also increases the workload for the operator.

[0004] Therefore, there is an urgent need for a locking mechanism for passenger boarding stairs to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a locking mechanism for boarding passenger boarding stairs support, which solves the problem of time-consuming and labor-intensive operation that involves manually rotating four handles to drive four threaded rods to rotate and make four pressure blocks fit against the ground to position the support, thus affecting work efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The application is as follows:

[0008] A locking mechanism for a boarding boarding ladder support includes a base, on which a boarding ladder body is hinged. Four rectangularly arranged first guide rods are fixedly connected to the top of the base. A U-shaped plate is slidably fitted onto the four first guide rods. A spring is fixedly connected between the upper surface of the base and the lower surface of the U-shaped plate. Two fixing plates are fixedly connected to the top of the base. A servo motor is fixedly mounted on one side surface of one of the fixing plates. A connecting shaft is fixedly connected to the output end of the servo motor. A rotating plate is fixedly connected to the middle of the outer surface of the connecting shaft. A connecting opening is formed through the middle of the U-shaped plate. Two second guide rods are laterally arranged on the inner surface of the connecting opening. A mounting seat is slidably fitted onto the two second guide rods. The end of the rotating plate away from the connecting shaft is hinged to the mounting seat. Two symmetrically distributed mounting plates are fixedly connected to the bottom of the U-shaped plate. Rubber pads are installed on the bottom of the mounting plates.

[0009] As a preferred technical solution of this application, the top of the base is fixedly connected to two symmetrically distributed first connecting blocks, and each of the two first connecting blocks is hinged with a hydraulic cylinder. The outer surface of the boarding ladder body is fixedly connected to two symmetrically distributed second connecting blocks, and the hydraulic rod ends of the two hydraulic cylinders are respectively hinged to the two second connecting blocks.

[0010] As a preferred technical solution of this application, pulleys are installed at the four corners of the bottom of the base, and a single mounting plate is located between two of the pulleys.

[0011] As a preferred technical solution of this application, a limiting block is fixedly connected to the top of the first guide rod, the limiting block is located above the U-shaped plate, and the rubber pad is located below the base.

[0012] As a preferred technical solution of this application, the number of springs is four, and the four springs are respectively located on the outside of the four first guide rods.

[0013] As a preferred technical solution of this application, both ends of the second guide rod are fixedly connected to the inner surface of the connecting opening, and the two second guide rods are symmetrically distributed about the central axis of the U-shaped plate.

[0014] As a preferred technical solution of this application, the end of the connecting shaft away from the servo motor is rotatably connected to another fixed plate through a bearing.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By using a set first guide rod, U-shaped plate, spring, fixed plate, servo motor, connecting shaft, rotating plate, connecting opening, and second guide rod in conjunction with the mounting base, two mounting plates and two rubber pads can be moved vertically, so that the lower surface of the two rubber pads is in close contact with the ground. This can lock the base and boarding ladder body, saving time and effort while improving work efficiency, greatly reducing the labor intensity of workers, and facilitating practical promotion.

[0017] 2. By using two first connecting blocks, two hydraulic cylinders and two second connecting blocks in combination, the height of the boarding ladder can be adjusted, making it more flexible. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a locking mechanism for a boarding boarding stairs support provided in this application. Figure 1 .

[0019] Figure 2 A schematic diagram of the overall structure of a locking mechanism for a boarding boarding stairs support provided in this application. Figure 2 .

[0020] Figure 3 This application provides a schematic diagram of the connection structure between the transfer plate and the mounting base of a locking mechanism for a boarding passenger boarding ladder support.

[0021] Figure 4 A schematic diagram of the overall structure of a locking mechanism for a boarding boarding stairs support provided in this application. Figure 3 .

[0022] The image shows:

[0023] 1. Base; 2. Boarding ladder body; 3. First guide rod; 4. U-shaped plate; 5. Spring; 6. Fixing plate; 7. Servo motor; 8. Connecting shaft; 9. Rotating plate; 10. Connecting opening; 11. Second guide rod; 12. Mounting base; 13. Mounting plate; 14. Rubber pad; 15. First connecting block; 16. Hydraulic cylinder; 17. Second connecting block; 18. Pulley; 19. Limiting block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used to distinguish the description and should not be construed as indicating or implying relative importance. Example

[0026] like Figure 1-4 As shown, this embodiment proposes a locking mechanism for a boarding boarding ladder support, including a base 1, a boarding ladder body 2 hinged to the base 1, four first guide rods 3 arranged in a rectangular pattern fixedly connected to the top of the base 1, a U-shaped plate 4 slidably sleeved on the four first guide rods 3, and four springs 5 ​​fixedly connected between the upper surface of the base 1 and the lower surface of the U-shaped plate 4, with each spring 5 located outside the four first guide rods 3. Two fixing plates 6 are fixedly connected to the top of the base 1, and a servo motor 7 is fixedly mounted on one side surface of one of the fixing plates 6. A connecting shaft 8 is fixedly connected to the output end of the servo motor 7, and a rotating plate 9 is fixedly connected to the middle of the outer surface of the connecting shaft 8. When the servo motor 7 is started, the rotating plate 9 is rotated through the connecting shaft 8. A connecting opening 10 is provided through the middle of the U-shaped plate 4, and two second guide rods 4 are laterally arranged on the inner surface of the connecting opening 10. The guide rod 11 has a mounting base 12 that is slidably connected to both second guide rods 11. The end of the rotating plate 9 away from the connecting shaft 8 is hinged to the mounting base 12. The rotating plate 9 drives the mounting base 12 to move, so that the mounting base 12 slides laterally on the two second guide rods 11. During this process, the two second guide rods 11 and the U-shaped plate 4 are subjected to force and move downward. The bottom of the U-shaped plate 4 is fixedly connected to two symmetrically distributed mounting plates 13. The U-shaped plate 4 is guided by four first guide rods 3. The four springs 5 ​​are compressed and deformed by force. Rubber pads 14 are installed at the bottom of the mounting plates 13. The two mounting plates 13 move downward synchronously with the U-shaped plate 4, so that the lower surfaces of the two rubber pads 14 are tightly attached to the ground. This can lock the base 1 and the boarding ladder body 2, saving time and effort while improving work efficiency and greatly reducing the labor intensity of the staff.

[0027] like Figure 1 and Figure 4As shown, pulleys 18 are installed near the four corners of the bottom of the base 1. The base 1 and the boarding ladder body 2 are moved to the designated position. A single mounting plate 13 is located between two of the pulleys 18. Two symmetrically distributed first connecting blocks 15 are fixedly connected to the top of the base 1. Hydraulic cylinders 16 are hinged to the two first connecting blocks 15. Two symmetrically distributed second connecting blocks 17 are fixedly connected to the outer surface of the boarding ladder body 2. The hydraulic rod ends of the two hydraulic cylinders 16 are respectively hinged to the two second connecting blocks 17. By driving the two second connecting blocks 17 through the two hydraulic cylinders 16, and cooperating with the two first connecting blocks 15, the height of the boarding ladder body 2 can be adjusted, so that the boarding platform of the boarding ladder body 2 can be moved to the side of the cabin door.

[0028] like Figure 3 As shown, a limiting block 19 is fixedly connected to the top of the first guide rod 3. The limiting block 19 is located above the U-shaped plate 4, and the rubber pad 14 is located below the base 1. The limiting block 19 can limit the U-shaped plate 4 and prevent the U-shaped plate 4 from detaching from the two first guide rods 3.

[0029] like Figure 3 As shown, both ends of the second guide rod 11 are fixedly connected to the inner surface of the connecting opening 10. The two second guide rods 11 are symmetrically distributed about the central axis of the U-shaped plate 4. The two second guide rods 11 can guide the mounting base 12 and prevent the mounting base 12 from shifting when it moves.

[0030] like Figure 3 As shown, the end of the connecting shaft 8 away from the servo motor 7 is rotatably connected to another fixed plate 6 through a bearing. The bearing ensures the stability of the rotation of the connecting shaft 8.

[0031] The working principle of the above embodiment is as follows: The base 1 and the boarding ladder body 2 are moved to the designated position. Two hydraulic cylinders 16 drive two second connecting blocks 17, which cooperate with two first connecting blocks 15 to adjust the height of the boarding ladder body 2, so that the boarding platform of the boarding ladder body 2 moves to the side of the cabin door. After the height of the boarding ladder body 2 is adjusted, the servo motor 7 is electrically connected to the external control power supply and the servo motor 7 is started. The rotating plate 9 is driven to rotate through the connecting shaft 8. The rotating plate 9 drives the mounting base 12 to move, so that the mounting base 12 slides laterally on the two second guide rods 11. During this process, the two second guide rods 11 and the U-shaped plate 4 are subjected to force and move downward. The four first guide rods 3 guide the U-shaped plate 4, and the four springs 5 ​​are compressed and deformed. The two mounting plates 13 move downward synchronously with the U-shaped plate 4, so that the lower surfaces of the two rubber pads 14 are tightly attached to the ground, which can lock the base 1 and the boarding ladder body 2. This saves time and effort, improves work efficiency, greatly reduces the labor intensity of the staff, and is conducive to practical promotion.

[0032] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A locking mechanism for a boarding passenger boarding ladder support, characterized in that: Includes a base (1), on which a boarding ladder body (2) is hinged. Four first guide rods (3) arranged in a rectangle are fixedly connected to the top of the base (1). A U-shaped plate (4) is slidably sleeved on the four first guide rods (3). A spring (5) is fixedly connected between the upper surface of the base (1) and the lower surface of the U-shaped plate (4). Two fixing plates (6) are fixedly connected to the top of the base (1). A servo motor (7) is fixedly installed on one side surface of one of the fixing plates (6). A connecting shaft (8) is fixedly connected to the output end of the servo motor (7). A rotating plate (9) is fixedly connected to the middle of the outer surface of the connecting shaft (8). A connecting opening (10) is opened through the middle of the U-shaped plate (4). Two second guide rods (11) are arranged laterally on the inner surface of the connecting opening (10). A mounting seat (12) is slidably sleeved on the two second guide rods (11). The end of the rotating plate (9) away from the connecting shaft (8) is hinged to the mounting seat (12). Two symmetrically distributed mounting plates (13) are fixedly connected to the bottom of the U-shaped plate (4). A rubber pad (14) is installed at the bottom of the mounting plate (13).

2. The locking mechanism for a boarding boarding stairs support according to claim 1, characterized in that, The base (1) has two symmetrically distributed first connecting blocks (15) fixedly connected to its top. Each of the two first connecting blocks (15) is hinged with a hydraulic cylinder (16). The outer surface of the boarding ladder body (2) has two symmetrically distributed second connecting blocks (17) fixedly connected. The hydraulic rod ends of the two hydraulic cylinders (16) are respectively hinged to the two second connecting blocks (17).

3. The locking mechanism for a boarding boarding stairs support according to claim 1, characterized in that, The base (1) is equipped with pulleys (18) at the four corners of its bottom, and a single mounting plate (13) is located between two of the pulleys (18).

4. The locking mechanism for a boarding boarding stairs support according to claim 1, characterized in that, The first guide rod (3) is fixedly connected to a limiting block (19) at the top. The limiting block (19) is located above the U-shaped plate (4), and the rubber pad (14) is located below the base (1).

5. A locking mechanism for a boarding boarding stairs support according to claim 1, characterized in that, The number of springs (5) is four, and the four springs (5) are located on the outside of the four first guide rods (3).

6. A locking mechanism for a boarding boarding stairs support according to claim 1, characterized in that, Both ends of the second guide rod (11) are fixedly connected to the inner surface of the connecting opening (10), and the two second guide rods (11) are symmetrically distributed about the central axis of the U-shaped plate (4).

7. A locking mechanism for a boarding boarding stairs support according to claim 1, characterized in that, The end of the connecting shaft (8) away from the servo motor (7) is rotatably connected to another fixed plate (6) via a bearing.

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