Triple-folding ramp plate for subway platform
By designing a three-fold ramp for subway platforms, using canvas connections and handle structures, the problem of rapid deployment and storage of subway platforms was solved, enabling lightweight and fast wheelchair access.
Patent Information
- Application Number
- CN202520370950.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing ramps are difficult to deploy and store quickly and flexibly when used on subway platforms, and they tend to scatter, failing to meet the needs of rapid passage on subway platforms.
A three-fold ramp for subway platforms was designed, consisting of a first, second, and third ramp connected by canvas, with handles and grips, an arc-shaped concave structure and wedge-shaped end design, combined with insulation and anti-slip layers to achieve quick folding and fixation.
It enables rapid deployment and folding of ramp slabs to prevent displacement, is suitable for rapid wheelchair access, is lightweight and easy to operate, and is suitable for flexible use on subway platforms.
Smart Images

Figure CN223793795U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to mechanical field, especially public traffic auxiliary equipment. BACKGROUND
[0002] Wheelchair as an important traffic tool for assisting the elderly and the disabled, its passability has a major impact on the daily activities of the user group. At present, most buildings and public infrastructure will set up barrier-free channels, but there are still many places due to the particularity of the use state, the wheelchair needs to pass through the ramp plate, for example: getting on and off the bus, getting on and off the steps in some areas, etc.
[0003] Rail transit as an important public transportation, also inevitably appears the situation that needs such auxiliary tools. Especially in the subway platform, there is always a gap between the platform and the subway car after the gate is opened, and due to different car types, building settlement and other factors, there is also a different degree of height difference between the platform and the car, which brings great inconvenience to the wheelchair. As public transportation, the subway has strict requirements for the stay time at each platform. Therefore, the platform staff need to quickly take, lay, and quickly recover and store the device when they find or receive the request for wheelchair to enter the subway, so as to provide convenience for the disabled and staff.
[0004] At present, there are many types of ramp plates in the prior art, but they all face many problems.
[0005] Chinese patent document CN202121859775.6 discloses "Barrier-free portable ramp plate", which focuses on solving the problem of connection and fixing strength, but is not suitable for the flexible and quick use scene of the subway platform.
[0006] Chinese patent document CN201720698451.6 discloses "Portable ramp plate", which provides high flexibility through the design of separating left and right plates and folding at the same time, but is not suitable for the flexible and quick use scene of the subway platform.
[0007] Chinese patent document CN202221218508.5 discloses "A variable-angle composite material folding ramp plate", which solves the problems of three-fold plate storage and angle adaptation, but the overall structure is too thick and heavy, which is not conducive to single-handed operation.
[0008] Chinese patent document CN202122723654.5 discloses "A portable step transition ramp plate", which discloses a light and anti-skid three-fold ramp plate, but due to the lack of handle fixing device, the plate is easy to scatter when stored. UTILITY MODEL CONTENTS
[0009] The utility model aims at providing a three-folded ramp board for subway platform, to solve the technical problem of wheelchair passing and ramp board storage between subway platform and carriage.
[0010] To realize above-mentioned purpose, the specific technical scheme of the utility model is as follows:
[0011] A three-folded ramp board for subway platform, including first ramp board, second ramp board and third ramp board, are connected into a whole board in turn, the first ramp board and second ramp board, second ramp board and third ramp board are connected by canvas, the second ramp board and third ramp board are equipped with handle, characterized in that, one end of the first ramp board, second ramp board and third ramp board is equipped with lower bending radian, and the other end is wedge-shaped, the lower bending radian structure is equipped with arc recess below.
[0012] Further, the first ramp board, second ramp board and third ramp board are equipped with insulating layer at both ends.
[0013] Further, the first ramp board, second ramp board and third ramp board are equipped with antiskid layer on the surface.
[0014] Further, the handle is equipped with holding handle.
[0015] Further, the holding handle includes first holding handle and second holding handle, and is respectively sleeved on different handles, the first holding handle side is equipped with recess, and the second holding handle is clamped in the recess.
[0016] Further, the second holding handle is wedge-shaped, and the shape of the recess is matched with the wedge shape.
[0017] Further, the first holding handle is equipped with locking cover at both ends, the middle part of the locking cover is movably connected with the first holding handle, and one end of the locking cover is connected with the first holding handle through spring.
[0018] Further, the locking cover is equipped with outer edge around, and the locking cover is equipped with first handle hole and second handle hole matched with the handle, wherein the second handle hole is open.
[0019] The technical scheme of the utility model has the following advantages:
[0020] 1. The whole is convenient to fold and store, and the arc recess can highly fit the threshold of subway door, to prevent the displacement of the ramp board.
[0021] 2. The first holding handle and the second holding handle are convenient to take and hold, and on the other hand, the first ramp board, the second ramp board and the third ramp board are prevented from being scattered after folding by mutual locking.
[0022] 3. The first ramp board, the second ramp board and the third ramp board are light in weight, convenient to use and suitable for the wheelchair to quickly get on and off the subway car. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a front structure schematic view of the utility model;
[0024] Figure 2 It is a front structure schematic view of the first ramp board after folding;
[0025] Figure 3 It is a front structure schematic view of the third ramp board after folding;
[0026] Figure 4 It is a side structure schematic view of the third ramp board after folding;
[0027] Figure 5 It is a side structure schematic view of the ramp board;
[0028] Figure 6 It is a front structure schematic view of the first holding handle and the second holding handle;
[0029] Figure 7 It is a structure schematic view of A-A section;
[0030] Figure 8 It is a structure schematic view of B-B section;
[0031] Figure 9 It is a front structure schematic view of the locking cover. DETAILED DESCRIPTION
[0032] In order to better understand the purpose, structure and function of the utility model, the three-folded ramp board for subway platform will be further described in detail below in combination with the drawings.
[0033] Example 1
[0034] The ramp board 1 in the prior art usually comprises a first ramp board 11, a second ramp board 12 and a third ramp board 13, and the three boards are vertically and horizontally movably connected in sequence to form an integral board. When in use, the board is laid flat, and when not in use, the board is folded together for stacking, thereby saving space and facilitating taking.
[0035] As Figures 1-5As shown, the three-fold ramp plate for subway platform provided by the present application adopts first ramp plate 11 and second ramp plate 12, and second ramp plate 12 and third ramp plate 13 are connected through canvas 2 respectively, which reduces the weight while ensuring the connection and folding functions. The second ramp plate 12 and the third ramp plate 13 are provided with handles 3, and the first ramp plate 11 is located between the second ramp plate 12 and the third ramp plate 13 after folding. The handles 3 can be used to take the three-fold ramp plate after folding, and can also ensure that the three-fold ramp plate is always in a folded state during lifting, avoiding the spread of the ramp plate during lifting and causing inconvenience to taking.
[0036] In the specific application process of the technical solution of the present application, one end of the first ramp plate 11, the second ramp plate 12 and the third ramp plate 13 is provided with a downward curvature, and the other end is wedge-shaped. After folding, the curvature can provide a buffer for uphill and downhill, and the wedge-shaped surface can contact the platform ground in a larger area, and also facilitates the same travel of wheelchair tires. An arc-shaped recess 103 is arranged below the downward curvature structure, and the arc-shaped recess 103 can highly fit the threshold at the subway door to prevent displacement of the ramp plate.
[0037] The first ramp plate 11, the second ramp plate 12 and the third ramp plate 13 are provided with an insulation layer 102 at the end. The insulation layer 102 can be made of rubber, wood, carbon fiber and other insulating materials to ensure the safety of the hand-propelled wheelchair. At the same time, it also has the effect of preventing slipping at the bottom.
[0038] The surface of the first ramp plate 11, the second ramp plate 12 and the third ramp plate 13 is provided with an anti-slip layer 101. The anti-slip layer 101 can be sandpaper, rubber dot matrix, etc. to avoid the slipping of the wheelchair on the ramp plate due to the height difference between the platform and the subway car.
[0039] In actual application, the three-fold ramp plate has the following dimensions: unfolded size: length x width x height 700(±5) x 810(±5) x 20(±2) mm; closed size: length x width x height 700(±5) x 265(±5) x 65(±2) mm; net weight ≤5.5 kg; bearing capacity ≥300 kg.
[0040] The overall material of the ramp plate is glass fiber composite material, which has the characteristics of light weight, insulation, corrosion resistance and impact resistance.
[0041] Example 2
[0042] As shown in the drawings, Figures 6-9 In this embodiment, the handle 3 is provided with a holding handle. The two handles 3 are fixed together, and it is also convenient to open with one hand during use.
[0043] Specifically, the holding handle includes a first holding handle 301 and a second holding handle 302, which are respectively sleeved on different handles 3. The first holding handle 301 is provided with a groove 304 on the side surface, and the second holding handle 302 is clamped in the groove 303. When combined, an integral body is formed, avoiding the handle 3 from being squeezed, and the handle 3 can be guaranteed to be bound together through the clamping of the first holding handle 301 and the second holding handle 302, avoiding the accidental unfolding of the ramp plate 1 when taking.
[0044] The second holding handle 302 is wedge-shaped, and the shape of the groove 304 is matched with the wedge shape. On the one hand, the wedge shape has a good guiding effect when in use, and can also limit the relative displacement to the four directions.
[0045] As shown in Figure 6 and Figure 8 , the first holding handle 301 is provided with a locking cover 303 at both ends, and the locking cover 303 is movably connected with the first holding handle 301 through a pin in the middle, which can realize relative rotation. One end of the locking cover 303 is connected with the first holding handle 301 through a spring, which ensures that the locking cover 303 is always in a buckling state at one end of the second holding handle 302, which can prevent the second holding handle 302 from loosening from the first holding handle 301.
[0046] Specifically, as shown in Figure 9 , the locking cover 303 is provided with an outer edge 3033 around the periphery, which is buckled around the handle after the combination of the first holding handle 301 and the second holding handle 302, preventing the second holding handle 302 from loosening. The locking cover 303 is provided with a first handle hole 3031 and a second handle hole 3032 matched with the handle 3, wherein the second handle hole 3032 is in the form of an opening.
[0047] Embodiment 3
[0048] As shown in Figure 5 , the canvas 2 can be replaced by soft materials such as rubber and leather, and is connected with the side surfaces of the first ramp plate 11, the second ramp plate 12 and the third ramp plate 13 through screws. At the same time, the installation method can adopt the partial multi-point installation as shown in Figure 5 , or the full-closed installation method of covering the entire connection with a large piece of material.
[0049] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.
Claims
1. A three-fold ramp for subway platforms, comprising a first ramp (11), a second ramp (12), and a third ramp (13), which are horizontally connected in sequence to form a single unit. The first ramp (11), the second ramp (12), the second ramp (12), and the third ramp (13) are connected by canvas (2), and the second ramp (12) and the third ramp (13) are provided with handles (3). The platform is characterized in that... One end of the first slope plate (11), the second slope plate (12) and the third slope plate (13) is provided with a downward bending arc, and the other end is wedge-shaped; the lower side of the downward bending arc structure is provided with an arc-shaped recess (103).
2. The tri-fold ramp panel for a subway platform of claim 1, wherein, The first slope plate (11), the second slope plate (12) and the third slope plate (13) are provided with an insulation layer (102) at both ends.
3. The tri-fold ramp panel for a subway platform of claim 2, wherein, The surface of the first slope plate (11), the second slope plate (12) and the third slope plate (13) is provided with an anti-skid layer (101).
4. The tri-fold ramp panel for a subway platform of claim 3, wherein, The handle (3) is provided with a holding handle.
5. The tri-fold ramp panel for a subway platform of claim 4, wherein, The holding handle includes a first holding handle (301) and a second holding handle (302), which are respectively sleeved on different handles (3); the first holding handle (301) is provided with a groove (304) on the side surface, and the second holding handle (302) is clamped in the groove (304).
6. The tri-fold ramp panel for a subway platform of claim 5, wherein, The second holding handle (302) is wedge-shaped, and the shape of the groove (304) is matched with the wedge shape.
7. The tri-fold ramp panel for a subway platform of claim 6, wherein, The first holding handle (301) is provided with a locking cover (303) at both ends, the middle part of the locking cover (303) is movably connected with the first holding handle (301), and one end of the locking cover (303) is connected with the first holding handle (301) through a spring.
8. The tri-fold ramp panel for a subway platform of claim 7, wherein, The locking cover (303) is provided with an outer edge (3033) around, the locking cover (303) is provided with a first handle hole (3031) and a second handle hole (3032) matched with the handle (3), and the second handle hole (3032) is in the form of an opening.
Citation Information
Patent Citations
Portable ramp board
CN207091861U
Barrier-free portable ramp plate
CN215331034U
Portable step transition ramp plate
CN216193752U
Variable-angle composite folding ramp plate
CN217678419U