Steering locking device and steering locking structure of passenger boarding bridge

Abstract

The utility model discloses a passenger boarding bridge steering locking device and a steering locking structure, the passenger boarding bridge steering locking device comprises a mounting part and a steering locking part, the mounting part is provided with a mounting groove, the steering locking part is arc-shaped or L-shaped, and one end of the steering locking part is connected with the mounting part. The steering locking device for the passenger boarding bridge is simple in structure, convenient to operate and high in mounting and dismounting speed, saves labor and physical power, and has wide application prospects.

Description

Technical Field

[0001] This utility model relates to the field of passenger boarding bridge technology, and in particular to a passenger boarding bridge steering locking device. Background Technology

[0002] Airports have very high requirements for flight punctuality. The normal operation of passenger boarding bridges is a key factor in ensuring that flights are not delayed.

[0003] The passenger boarding bridge is driven by two hydraulic motors, one for the left wheel and one for the right wheel, enabling forward, backward, left, and right turns. If one motor fails and loses its driving force, the other motor alone can only cause the bridge to spin in place, preventing it from moving in a straight line. This would hinder proper docking or aircraft evacuation and disrupt normal airport operations.

[0004] The passenger boarding bridge is equipped with a manual hydraulic pump system (hereinafter referred to as the hand pump) as an emergency device. When the electric hydraulic pump stops working, the hand pump can be used as an emergency measure to drive the hydraulic motor. However, the hand pump can only function properly if both motors are working correctly. If one motor fails, the boarding bridge will only spin in place even when the hand pump is used. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of the existing technology by providing a mechanical locking device. In use, this device is fixed to the wheel frame of the passenger boarding bridge, locking the steering function of the wheel frame and forcing the passenger boarding bridge to travel in a straight line. This device has the advantages of simple structure, convenient operation, good safety, and long service life.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A passenger boarding bridge steering locking device includes a mounting part and a steering locking part. The mounting part has a mounting groove, and the steering locking part is arc-shaped or L-shaped, with one end connected to the mounting part.

[0008] A further technical solution is that the mounting part has a threaded hole communicating with the mounting groove, and a locking screw is threaded into the threaded hole.

[0009] A further technical solution is that the mounting part and the steering lock part are made of Q235A steel.

[0010] A further technical solution is to weld the mounting part to the steering lock part.

[0011] A further technical solution is that the steering lock part is an arc-shaped plate.

[0012] A further technical solution is that the steering lock part is an L-shaped plate.

[0013] A further technical solution is that the steering lock is located on one side of the mounting part.

[0014] A further technical solution is that there are two steering lock parts, symmetrically arranged on both sides of the mounting part.

[0015] A passenger boarding bridge steering locking structure is also disclosed, including the aforementioned passenger boarding bridge steering locking device.

[0016] A further technical solution includes a rotatably cooperating wheel frame and a bridge body, wherein the wheel frame is provided with a wheel frame limiting block, the bridge body is provided with a bridge body limiting block, the mounting part of the steering locking device is mounted on the wheel frame limiting block, and the steering locking part abuts against the bridge body limiting block.

[0017] The beneficial effects of adopting the above technical solution are as follows:

[0018] The passenger boarding bridge steering locking device of this utility model has a simple structure, is easy to operate, and can be installed and disassembled quickly, saving personnel and physical strength. It can quickly complete the emergency bridge removal task when the hydraulic motor of the passenger boarding bridge fails. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection between the passenger boarding bridge wheel frame and the bridge body;

[0020] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0021] Figure 3 This is a schematic diagram of the installation of the passenger boarding bridge in Embodiment 1;

[0022] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0023] Figure 5 This is a schematic diagram of the installation of the passenger boarding bridge in Embodiment 2;

[0024] Figure 6 This is a structural schematic diagram of Embodiment 3 of this utility model;

[0025] Figure 7 This is a schematic diagram of the installation of the third embodiment on the passenger boarding bridge.

[0026] In the diagram: 1. Mounting part; 2. Steering lock part; 3. Mounting groove; 4. Locking screw; 5. Wheel frame; 6. Axle body; 7. Wheel frame limit block; 8. Axle body limit block. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Figure 1 The diagram illustrates the structure at the connection between the wheel frame 5 and the bridge body 6 of the passenger boarding bridge. The wheel frame 5 is rotatably connected to the bridge body 6. A wheel frame limiting block 7 is mounted on the wheel frame 5, and a bridge body limiting block 8 is mounted on the bridge body 6. The relative rotation of the wheel frame 5 and bridge body 6 allows the passenger bridge to steer. When the wheel frame reaches a rotation angle of ±90°, the wheel frame limiting block 7 contacts the bridge body limiting block 8, preventing further rotation of the wheel frame. The passenger boarding bridge is driven by two hydraulic motors, one for the left wheel and one for the right wheel, enabling forward, backward, left, and right turns. If one motor fails and loses its driving force, the other motor alone can only cause the boarding bridge to spin in place, preventing straight-line movement and hindering normal docking or aircraft evacuation, thus affecting airport operations. This device was developed to meet the emergency evacuation requirements in case of hydraulic motor failure.

[0030] Example 1: As Figure 2 As shown, a passenger boarding bridge steering locking device is disclosed to lock the wheel frame 5 relative to the bridge body 6. It includes a mounting part 1 and a steering locking part 2. The mounting part 1 is provided with a mounting groove 3. The steering locking part 2 is an arc-shaped plate structure with one end connected to the mounting part 1.

[0031] The mounting part 1 can be processed into various shapes, but a square frame shape is the preferred embodiment. For example... Figure 3 As shown, the entire steering locking device is installed through the mounting part 1, and the other end of the steering locking part 2 is used to abut against the bridge body limiting block 8, which can limit the rotation of the wheel frame relative to the bridge body.

[0032] The mounting part 1 has a threaded hole that communicates with the mounting groove 3, and a locking screw 4 is threaded into the threaded hole.

[0033] After mounting part 1 is placed on wheel frame limit block 7, it is secured with locking screw 4 to prevent movement or detachment; when disassembly is required, the steering locking device can be removed from the boarding bridge by unscrewing locking screw 4.

[0034] The mounting part 1 and the steering locking part 2 are made of Q235A steel. The mounting part 1 and the steering locking part 2 are welded and fixed together. This ensures that no damage or deformation will occur during use, and that the original steel structure of the passenger boarding bridge will not be damaged.

[0035] The number of steering lock parts 2 is one, which is provided on one side of the mounting part 1. In the event of a failure of one hydraulic motor, when a single hydraulic motor is driven, it will only rotate in one direction, so only one steering lock part 2 is required, saving materials.

[0036] When a hydraulic motor fails, initiate the emergency boarding bridge evacuation procedure. The operator, following regulations, presses the boarding bridge's "emergency stop button," cutting off power to the passenger boarding bridge. Install the manual pump crank. Operate the hydraulic valve handle to switch the direction of travel. Remove the center wheel of the planetary reducer from the faulty motor (this disconnects the hydraulic motor from the wheels, preventing further damage). Install the steering lock device onto the wheel frame limit block 7; the steering function of the wheel frame 5 is locked. Figure 3 As shown.

[0037] The manual cranking of the bridge begins, and another hydraulic motor starts to operate. When the wheel frame rotates through a very small angle, the steering lock 2 contacts the bridge body limit block 8, preventing the wheel frame from rotating further, and the passenger bridge travels in a straight line.

[0038] After removing the bridge, restore the center wheel of the planetary reducer of the faulty motor. Remove the steering lock device, restore the hydraulic valve direction, and restore the "emergency stop button".

[0039] Example 2: Figure 4 As shown, the difference from Embodiment 1 is that there are two steering lock parts 2, symmetrically arranged on both sides of the mounting part 1. Although it can be used with only one steering lock part 2, the orientation of the steering lock part 2 needs to be considered during installation. This embodiment changes the number of steering lock parts 2 to two, so the installation orientation does not need to be considered during installation; it can be installed directly. Figure 5 As shown.

[0040] Example 3: Figure 6 and Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the steering lock part 2 is L-shaped. It can also be other shapes, as long as the steering lock part 2 can avoid the wheel frame 5 and the axle body 6 and contact the axle body limiting block 8 during use.

[0041] like Figure 3 ,5 As shown in Figure 7, a passenger boarding bridge steering locking structure is disclosed, including a wheel frame 5 and a bridge body 6 that are rotatably coupled, and the aforementioned steering locking device. The wheel frame 5 is provided with a wheel frame limiting block 7, and the bridge body 6 is provided with a bridge body limiting block 8. The mounting part 1 of the steering locking device is mounted on the wheel frame limiting block 7, and the steering locking part 2 abuts against the bridge body limiting block 8.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A passenger boarding bridge steering locking device, characterized in that: It includes a mounting part (1) and a steering lock part (2). The mounting part (1) has a mounting groove (3). The steering lock part (2) is arc-shaped or L-shaped and one end is connected to the mounting part (1).

2. The passenger boarding bridge steering locking device according to claim 1, characterized in that: The mounting part (1) is provided with a threaded hole that communicates with the mounting groove (3), and a locking screw (4) is threaded into the threaded hole.

3. The passenger boarding bridge steering locking device according to claim 1, characterized in that: The mounting part (1) and the steering lock part (2) are made of Q235A steel.

4. The passenger boarding bridge steering locking device according to claim 1, characterized in that: The mounting part (1) is welded and fixed to the steering lock part (2).

5. The passenger boarding bridge steering locking device according to claim 1, characterized in that: The steering lock part (2) is an arc-shaped plate.

6. The passenger boarding bridge steering locking device according to claim 1, characterized in that: The steering lock part (2) is an L-shaped plate.

7. The passenger boarding bridge steering locking device according to claim 1, characterized in that: There is one steering lock part (2), which is provided on one side of the mounting part (1).

8. The passenger boarding bridge steering locking device according to claim 1, characterized in that: There are two steering lock parts (2), which are symmetrically arranged on both sides of the mounting part (1).

9. A passenger boarding bridge steering locking structure, characterized in that: Includes the passenger boarding bridge steering locking device as described in any one of claims 1-8.

10. The passenger boarding bridge steering locking structure according to claim 9, characterized in that: It also includes a rotating wheel frame (5) and a bridge body (6), the wheel frame (5) is provided with a wheel frame limiting block (7), the bridge body (6) is provided with a bridge body limiting block (8), the mounting part (1) of the steering locking device is mounted on the wheel frame limiting block (7), and the steering locking part (2) abuts against the bridge body limiting block (8).

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