Barrier-free ramp device for vehicle
The locking mechanism, consisting of a probe rod, a locking block, a locking plate, and a return spring, solves the problem of inconvenient installation of existing barrier-free vehicle ramp devices, enabling convenient removal and adjustment, and improving the safety and comfort of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-03-31
AI Technical Summary
Existing accessible vehicle ramp devices are not convenient to install and remove, and it is difficult to adjust the overall position, resulting in inconvenience in use.
The design incorporates a locking mechanism including an insertion rod, a locking block, a locking plate, a return spring, and a control line. The expansion and contraction of the locking plate is controlled by rotating a torsion block, enabling the rapid deployment or retraction of the slope module. Stability and safety are provided by support legs, handrails, and a cover plate structure.
It enables convenient installation and removal of ramp devices, allows for adjustment of orientation as needed, improves safety and comfort during use, prevents slippage, and enhances nighttime visibility.
Smart Images

Figure CN224056196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of barrier-free vehicle technology, and more specifically, to a ramp device for barrier-free vehicles. Background Technology
[0002] Accessible vehicle ramps are assistive devices designed specifically for passengers with mobility impairments. They are primarily used to help them safely and easily enter and exit various types of vehicles, such as buses, trains, and wheelchair-accessible vehicles. The purpose of these devices is to ensure that all passengers, especially those using wheelchairs or other mobility aids, can use public transportation and services equally and independently.
[0003] A novel barrier-free vehicle ramp device, disclosed in publication number CN215081026U, includes a base, a ramp plate on top of the base, a first reinforcing rod fixedly connected to one side of the bottom of the ramp plate, a first rotating shaft movably connected to the bottom of the first reinforcing rod, a second reinforcing rod movably connected to the bottom of the first rotating shaft, and a fixed connection between the bottom of the second reinforcing rod and the top of the base. A movable groove is provided on one side of the bottom of the ramp plate, and a second rotating shaft movably connected to the center of the top of the base. A cylinder is movably mounted on the top of the second rotating shaft. This novel barrier-free vehicle ramp device, through the design of the second rotating shaft, cylinder, piston rod, third rotating shaft, ramp plate, movable groove, first reinforcing rod, first rotating shaft, and second reinforcing rod, enables the ramp device to have an adjustable slope, facilitating user movement and adjustment, and improving user convenience.
[0004] However, based on the working principle proposed in the aforementioned patent, the applicant believes that although the aforementioned device can be moved to a certain extent, in actual use, the installation and removal of the aforementioned device are relatively inconvenient, it is difficult to adjust the overall position, and there are certain inconveniences in using it. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a barrier-free vehicle ramp device, which has the advantages of easy installation and dismantling.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a barrier-free vehicle ramp device, comprising a ramp module, the ramp module comprising a side block, a support rod movably mounted on the inner side of the side block, a fixing ring block fixedly mounted on the surface of the side block, an insertion rod fixedly mounted on the top end of the support rod, a locking block fixedly mounted on the top end of the insertion rod, locking plates movably mounted on both sides of the inner cavity of the fixing ring block, a return spring fixedly mounted between the locking plate and the inner wall of the fixing ring block, a control line fixedly mounted between the locking plate and the return spring, a tightening roller fixedly connected to the other end of the control line, a torsion block fixedly connected to the outer end of the tightening roller and located outside the fixing ring block, the insertion rod and the locking block movably mounted on the inner side of the fixing ring block, and the locking block engaging with the locking plate.
[0007] As a preferred embodiment of this utility model, a support leg is fixedly installed at the bottom of the side block, and a first handrail is fixedly installed at the top of the side block.
[0008] As a preferred embodiment of this utility model, a platform module is provided on one side of the slope module, and the platform module includes a support frame.
[0009] As a preferred embodiment of this utility model, a second handrail is fixedly installed on the top of the support frame, and LED lights are provided on the surfaces of both the second handrail and the first handrail.
[0010] As a preferred technical solution of this utility model, the surfaces of the slope module and the platform module are provided with a cover plate structure, and the cover plate structure includes a slope panel.
[0011] As a preferred embodiment of this utility model, a platform plate is movably connected to one side of the slope panel, and a contact plate is movably connected to the other side of the slope panel. Friction pads are provided on the surfaces of both the slope panel and the platform plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model uses an insert rod as a carrier for the locking block, allowing the locking block to move back and forth inside the fixed ring block. The locking block interacts with the locking plate inside the fixed ring block to achieve locking and unlocking functions. A return spring is installed between the locking plate and the inner wall of the fixed ring block. The return spring provides an outward pushing force, so that the locking plate is usually in the extended position. When the user wants to retract the ramp module, he only needs to rotate the torsion block. The rotation of the torsion block will cause the tightening roller to wind the control line. As the control line is tightened, it will pull the locking plate to overcome the elasticity of the return spring and retract inward, thereby removing the locking plate from the locking block. Once the locking plate no longer obstructs the locking block, the support pad rod can move freely, and the user can easily remove and retract it.
[0014] 2. This utility model provides stable support at the bottom of the side block through the setting of support legs. The setting of the first and second handrails provides auxiliary support for users, especially increasing safety when going up or down ramps or platform modules. The setting of the cover plate structure provides a smooth and non-slip passage surface, and the movable connection design between these parts allows the orientation of the ramp to be adjusted according to actual conditions to match the needs of different heights and angles. The setting of friction plates increases the friction on the surface of the ramp panel and platform plate, preventing pedestrians or vehicles from sliding and improving the safety of use. Attached Figure Description
[0015] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a rear-view perspective view of the overall structure of this utility model;
[0017] Figure 3 This is a partially enlarged three-dimensional schematic diagram of the cover plate structure of this utility model;
[0018] Figure 4 This is a partial three-dimensional schematic diagram of the slope module and platform module structure of this utility model;
[0019] Figure 5 This is a three-dimensional schematic diagram of a partial connection of the support rod and fixing ring block structure of this utility model;
[0020] Figure 6 This is an enlarged three-dimensional cross-sectional view of the internal structure of the fixed ring block of this utility model.
[0021] In the diagram: 1. Slope module; 2. Side block; 3. Support pad; 4. Fixing ring block; 5. Insertion rod; 6. Locking block; 7. Locking plate; 8. Return spring; 9. Control line; 10. Tensioning roller; 11. Torsion block; 12. Support leg; 13. First handrail; 14. Platform module; 15. Support frame; 16. Second handrail; 17. LED light; 18. Covering structure; 19. Slope panel; 20. Platform plate; 21. Contact floor; 22. Friction pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1 to 6As shown, this utility model provides a barrier-free vehicle ramp device, including a ramp module 1. The ramp module 1 includes a side block 2. A support pad rod 3 is movably installed on the inner side of the side block 2. A fixing ring block 4 is fixedly installed on the surface of the side block 2. An insertion rod 5 is fixedly installed at the top of the support pad rod 3. A locking block 6 is fixedly installed at the top of the insertion rod 5. Locking plates 7 are movably installed on both sides of the inner cavity of the fixing ring block 4. A return spring 8 is fixedly installed between the locking plate 7 and the inner wall of the fixing ring block 4. A control line 9 is fixedly installed between the locking plate 7 and the return spring 8. A tightening roller 10 is fixedly connected to the other end of the control line 9. A torsion block 11 is fixedly connected to the outer end of the tightening roller 10, which is located on the outer side of the fixing ring block 4. The insertion rod 5 and the locking block 6 are movably installed on the inner side of the fixing ring block 4. The locking block 6 is engaged with the locking plate 7.
[0024] Among them, a support leg 12 is fixedly installed at the bottom of the side block 2, and a first handrail 13 is fixedly installed at the top of the side block 2.
[0025] The support leg 12 provides stable support at the bottom of the side block 2, while the first handrail 13 provides auxiliary support for the user.
[0026] Among them, a platform module 14 is provided on one side of the slope module 1, and the platform module 14 includes a support frame 15.
[0027] Platform module 14 can provide a horizontal standing area on one side of ramp module 1, giving users a smooth transition space when entering or leaving the vehicle, thus improving user comfort.
[0028] The support frame 15 has a second handrail 16 fixedly installed on its top, and both the second handrail 16 and the first handrail 13 are equipped with LED lights 17.
[0029] LED lights 17 can provide illumination on the handrail, improving visibility and safety at night or in low-light conditions.
[0030] The surfaces of both the slope module 1 and the platform module 14 are provided with a cover plate structure 18, which includes a slope panel 19.
[0031] The surface of the slope module 1 and platform module 14 can be covered by the overlay structure 18, providing a smooth and non-slip passage surface.
[0032] One side of the slope panel 19 is movably connected to the platform plate 20, and the other side of the slope panel 19 is movably connected to the contact plate 21. Friction pads 22 are provided on the surfaces of both the slope panel 19 and the platform plate 20.
[0033] The contact floor 21 provides a stable contact area with the ground on the other side of the ramp panel 19, ensuring that the front end of the ramp can land smoothly. The friction pad 22 provides higher friction on the surfaces of the ramp panel 19 and the platform plate 20, preventing pedestrians or vehicles from slipping.
[0034] The working principle and usage process of this utility model: When using this device, the user can drive the tightening roller 10 to wind or loosen the control line 9 by rotating the torsion block 11, thereby controlling the locking plate 7 to overcome the elastic force of the return spring 8 to retract or extend, realizing the locking or releasing of the locking block 6. This mechanism allows the support pad rod 3 to quickly unfold or retract to adapt to different terrain or vehicle position requirements. At the same time, the support leg 12 increases the stability when placed. The first handrail 13 and the second handrail 16 on the platform module 14 not only provide auxiliary support, but also enhance the safety of use by setting LED lights 17. The cover plate structure 18, including the movable connection design between the slope panel 19, platform plate 20 and touch floor 21, allows the ramp to be adjusted according to the actual situation to match the needs of different heights and angles. The design of the friction plate 22 further ensures the safety and anti-slip performance of the surface.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A ramp device for barrier-free vehicles, comprising a ramp surface module (1), characterized in that: The slope module (1) comprises a side block (2), the inner side of the side block (2) is movably mounted with a supporting pad rod (3), the surface of the side block (2) is fixedly mounted with a fixed ring block (4), the top end of the supporting pad rod (3) is fixedly mounted with a probe rod (5), the top end of the probe rod (5) is fixedly mounted with a clamping block (6), the two sides of the inner cavity of the fixed ring block (4) are movably mounted with clamping plates (7), the clamping plates (7) and the inner wall of the fixed ring block (4) are fixedly mounted with return springs (8), the clamping plates (7) and the return springs (8) are fixedly mounted with control lines (9), the other end of the control lines (9) is fixedly connected with a tightening roller (10), the outer end of the tightening roller (10) and the outer side of the fixed ring block (4) are fixedly connected with a torsion block (11), the probe rod (5) and the clamping block (6) are movably mounted on the inner side of the fixed ring block (4), and the clamping block (6) is clamped with the clamping plate (7).
2. A ramp device for a wheelchair according to claim 1, characterized in that: The bottom of the side block (2) is fixedly mounted with a supporting leg (12), and the top end of the side block (2) is fixedly mounted with a first handrail rod (13).
3. A ramp device for a wheelchair according to claim 1, characterized in that: One side of the slope module (1) is provided with a platform module (14), and the platform module (14) comprises a supporting frame (15).
4. A ramp device for a mobility scooter as claimed in claim 3, wherein: The top of the supporting frame (15) is fixedly mounted with a second handrail rod (16), and the surfaces of the second handrail rod (16) and the first handrail rod (13) are provided with LED lamps (17).
5. A ramp device for a wheelchair according to claim 1, characterized in that: The surfaces of the slope module (1) and the platform module (14) are provided with a cover plate structure (18), and the cover plate structure (18) comprises a slope plate (19).
6. A ramp assembly for a mobility scooter as defined in claim 5, wherein: One side of the slope plate (19) is movably connected with a platform plate (20), the other side of the slope plate (19) is movably connected with a ground plate (21), and the surfaces of the slope plate (19) and the platform plate (20) are provided with friction plates (22).
Citation Information
Patent Citations
Novel barrier-free ramp device for vehicle
CN215081026U