A boarding bridge structure
By designing a boarding ladder structure that includes a car frame, a rear panel assembly, a hinge assembly, and a latch assembly, the problem of time-consuming, laborious, and unsafe boarding after the rear panel of a van is opened is solved. The boarding ladder can be quickly unfolded and hidden, improving the convenience and safety of getting on and off the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG PENGXIANG AUTOMOBILE
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-14
AI Technical Summary
With the rear panel of existing vans opened, it is time-consuming, laborious, and poses safety hazards for people to board and alight.
Design a boarding ladder structure consisting of a car frame, a rear panel assembly, a hinge assembly, a boarding ladder assembly, a latch assembly, a rotating sleeve, and a rotating shaft. The hinge assembly enables the rear panel of the car to be flipped and the latch assembly to be operated, allowing the boarding ladder to be hidden or unfolded to facilitate the boarding and alighting of personnel.
The boarding stairs are concealed inside the carriage and can be quickly deployed when needed, simplifying the boarding and alighting process and improving safety and convenience.
Smart Images
Figure CN224490867U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of van technology, specifically a boarding ladder structure. Technical Background
[0002] Currently, when the rear panel of a van is opened, people need to jump onto the vehicle by using stools or holding onto the rear panel, or climb up using a ladder. This process is time-consuming, laborious, and unsafe. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a boarding ladder structure.
[0004] The technical solution provided by this utility model is: a boarding ladder structure, characterized in that it is composed of a car frame, a rear panel assembly, a hinge assembly, a boarding ladder assembly, a pin assembly, a rotating sleeve, a rotating shaft, and a pin plate; the rear panel assembly is flush with the rear end face of the car frame, the lower part of the rear panel assembly is connected to the car frame through the hinge assembly, and the rear panel assembly can rotate 180° backward around the pin axis of the hinge assembly; the upper part of the hinge assembly is fixed to the rear panel assembly, and the lower part is fixed to the car frame; symmetrical hooks are provided on the upper parts of both sides of the rear panel assembly, and the rear panel assembly is fixed to the uprights symmetrically arranged on both sides of the car frame by bolts inserted into the hooks;
[0005] An entry ladder assembly is fixed inside the rear door assembly of the carriage. A rotating sleeve and a pin assembly are fixed on the inner side plate of the rear panel assembly of the carriage. One end of the entry ladder assembly is fixed to a rotating shaft, and the other end is fixed to a pin plate. The rotating shaft cooperates with the rotating sleeve and rotates around the rotating sleeve. The pin plate cooperates with the pin assembly.
[0006] Furthermore, the latch assembly is closed, with the latch passing through a hole in the latch plate.
[0007] Furthermore, the latch assembly opens, and the boarding ladder assembly flips down 90° to a vertical position.
[0008] The beneficial effects of this utility model are as follows: 1. During vehicle operation, the boarding ladder assembly is hidden inside the carriage. When in use, the rear door assembly of the carriage is opened, the latch assembly is opened, and the boarding ladder assembly is flipped down, allowing personnel to board the vehicle via the boarding ladder; 2. The structure is simple and the operation is convenient and quick. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the rear door assembly of the carriage in the closed state according to this utility model.
[0010] Figure 2 This is a schematic diagram of the rear panel assembly of the vehicle compartment in the open state of this utility model.
[0011] Figure 3 This is a schematic diagram of the opening structure of the boarding ladder of this utility model.
[0012] In the diagram: 1. Carriage frame, 2. Rear panel assembly, 3. Hinge assembly, 4. Boarding ladder assembly, 5. Pin assembly, 6. Rotating sleeve, 7. Rotating shaft, 8. Pin plate. Detailed Implementation
[0013] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings.
[0014] like Figure 1 , 2 As shown in Figures 1 and 3, a boarding ladder structure is composed of a car frame 1, a rear panel assembly 2, a hinge assembly 3, a boarding ladder assembly 4, a pin assembly 5, a rotating sleeve 6, a rotating shaft 7, and a pin plate 8.
[0015] The rear panel assembly 2 of the carriage is flush with the rear end face of the carriage frame 1. The lower part of the rear panel assembly 2 is connected to the carriage frame 1 through the hinge assembly 3. The upper part of the hinge assembly 3 is welded to the rear panel assembly 2 of the carriage, and the lower part is welded to the carriage frame 1. Hooks are symmetrically welded to the upper part of both sides of the rear panel assembly 2 of the carriage. The rear panel assembly 2 of the carriage is fixed to the uprights symmetrically arranged on both sides of the carriage frame 1 by the bolts inserted into the hooks. After the bolts are opened, the rear panel assembly 2 of the carriage can rotate 180° backward around the pin axis of the hinge assembly 3.
[0016] An entry ladder assembly 4 is fixed inside the rear door assembly 2 of the carriage. When not in use, the entry ladder assembly 4 is hidden inside the carriage. A rotating sleeve 6 and a pin assembly 5 are welded onto the rear panel assembly 2 of the carriage. A rotating shaft 7 is welded to one end of the entry ladder assembly 4, and a pin plate 8 is welded to the other end. The rotating shaft 7 cooperates with the rotating sleeve 6, and the rotating shaft 7 can rotate around the rotating sleeve 6. The pin plate 8 cooperates with the pin assembly 5. When the pin assembly 5 is closed, the pin passes through the hole on the pin plate and plays a fixing role.
[0017] Open the latch assembly 5, and the boarding ladder assembly 4 will rotate downwards 90° to a vertical position. Personnel can use this boarding ladder to get on and off the vehicle. The boarding ladder is easy and quick to operate.
[0018] This utility model discloses a loading ladder structure in which the loading ladder assembly is hidden inside the carriage during vehicle movement. When in use, the rear door assembly of the carriage is opened, and after the latch assembly is opened, the latch releases its restriction on the latch plate, allowing the loading ladder assembly to be flipped down. The loading ladder assembly can rotate downwards by 90° around the rotating sleeve, and the loading ladder assembly is in a vertical state. Personnel can then board the vehicle via the loading ladder. This structure is simple and easy and quick to operate.
[0019] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and improvements made by those skilled in the art to the technical solution of the present utility model without departing from its design spirit should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A boarding ladder structure, characterized in that, It is composed of a car frame (1), a rear panel assembly (2), a hinge assembly (3), a boarding ladder assembly (4), a pin assembly (5), a rotating sleeve (6), a rotating shaft (7), and a pin plate (8); the rear panel assembly (2) is flush with the rear end face of the car frame (1), the lower part of the rear panel assembly (2) is connected to the car frame (1) through the hinge assembly (3), and the rear panel assembly (2) can rotate 180° backward around the pin axis of the hinge assembly (3); the upper part of the hinge assembly (3) is fixed to the rear panel assembly (2), and the lower part is fixed to the car frame (1); the rear panel assembly (2) is symmetrically provided with hooks on the upper part of both sides, and the rear panel assembly (2) is fixed to the uprights symmetrically arranged on both sides of the car frame (1) by the bolts inserted on the hooks; The rear door assembly (2) of the carriage is fixed with a boarding ladder assembly (4) inside. The rear panel assembly (2) of the carriage is fixed with a rotating sleeve (6) and a pin assembly (5). One end of the boarding ladder assembly (4) is fixed with a rotating shaft (7) and the other end is fixed with a pin plate (8). The rotating shaft (7) cooperates with the rotating sleeve (6) and the rotating shaft (7) rotates around the rotating sleeve (6). The pin plate (8) cooperates with the pin assembly (5).
2. The boarding ladder structure according to claim 1, characterized in that, The pin assembly (5) is closed, and the pin passes through the hole on the pin plate (8).
3. The boarding ladder structure according to claim 1, characterized in that, When the latch assembly (5) is opened, the boarding ladder assembly (4) is flipped down 90° to a vertical position.