Wheelchair ramp

Abstract

This utility model belongs to the field of wheelchair ramp technology, and more particularly to a wheelchair ramp, including a plate body. Connecting mechanisms are installed on both sides of the plate body, and multiple plates are connected through these mechanisms to form a ramp. A protective edge is provided on the top edge of the plate body. The plate body in the middle of the ramp is split into two parts connected by multiple hinges, allowing the ramp to be folded in half at both ends. A positioning mechanism is also included, which is located on the plate body in the middle of the ramp. In this utility model, the connecting mechanisms allow multiple plates to be combined and connected, thus adjusting the ramp length according to the height of the steps to meet the needs of different step heights. Furthermore, when individual plates are damaged, the corresponding hand-tightening bolts can be removed counterclockwise to disassemble and replace the damaged plate, reducing the replacement and usage costs of the ramp, thereby saving resources and improving practicality.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair ramp technology, specifically a wheelchair ramp. Background Technology

[0002] A wheelchair ramp is an auxiliary facility specifically installed at the top of stairs. Its core function is to create a continuous and gentle transition path for wheelchairs, helping people with mobility impairments to smoothly cross stair obstacles. Currently, most wheelchair ramps on the market are made of aluminum alloy. This material not only gives the ramp sufficient structural strength to support the weight of the wheelchair and the user, but also has the characteristics of being lightweight and corrosion-resistant, which greatly facilitates the user's handling, carrying, and installation, and can flexibly adapt to the stair access needs in different scenarios.

[0003] However, most existing walking ramps are one-piece aluminum alloy panels. This design has revealed significant drawbacks in long-term use: because the ramp is subject to repeated wheelchair pressure, friction, and environmental factors, local areas of the panel (such as the surface anti-slip layer and edge joints) are prone to wear, deformation, or even breakage. Damaged panels not only reduce traffic safety (such as slippage due to anti-slip failure or protrusions obstructing wheelchair movement), but also pose serious safety hazards. Furthermore, because it is a one-piece structure, once a part is damaged, the entire ramp must be replaced. This not only significantly increases replacement costs but also renders the remaining intact parts unusable, resulting in a waste of resources. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a wheelchair ramp that is easy to store and carry, and facilitates the replacement of parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheelchair ramp, comprising a panel, with connecting mechanisms installed on both sides of the panel, and multiple panels connected by the connecting mechanisms to form a ramp; a protective edge is provided on the top edge of the panel; the panel located in the middle of the ramp is split into two parts connected by multiple hinges, allowing the ramp to be folded in half at both ends; and a positioning mechanism is also included, which is disposed on the panel in the middle of the ramp for fixing the position of the multiple connected panels after they are folded into a flat ramp.

[0006] Preferably, the connecting mechanism has symmetrically distributed connecting plates on both sides of the protective edge, and symmetrically distributed semi-enclosed plates on the other end. The semi-enclosed plates and the protective edge bracket have a plug-in cavity that matches the connecting plates, and the connecting plates have connecting holes. Bolt holes are provided on both the semi-enclosed plate and the protective edge. The bolt holes are the same size as the connecting holes. A nut coaxial with the bolt hole is provided on the inner wall of the protective edge. A hand-tightening bolt matching the nut is inserted into the semi-enclosed plate.

[0007] Preferably, the top surface of the plate is provided with a plurality of anti-slip stripes that are perpendicular to the protective edge.

[0008] Preferably, the bottom surface of the plate is provided with a plurality of reinforcing stripes distributed parallel to the protective edge.

[0009] Preferably, the middle plate is composed of two rotatably connected left and right parts, the left and right parts are the same size, the positioning mechanism includes a first support plate and a second support plate disposed on the protective edge of the left part, and a pin slidably passing through the first support plate and the second support plate, and both the first support plate and the second support plate are provided with sliding holes adapted to the pin. A connecting block is provided on the right side of the protective edge and at the same horizontal level as the pin. The connecting block has a plug hole that matches the pin. The left and right parts of the plate can be folded or laid flat by multiple hinges, and after being laid flat, they are limited by the pins and connecting blocks on both sides.

[0010] Preferably, a limiting plate is provided on the top surface of the left part of the protective edge, and when the left and right parts of the plate are laid flat, the bottom surface of the limiting plate is in contact with the top surface of the right part of the protective edge.

[0011] Preferably, a socket plate is fixedly fitted onto the insertion pin, and a return spring is looped around the outside of the insertion pin. The return spring contacts the first support plate and the socket plate respectively, and the insertion pin can be displaced toward the connecting block by the elastic force of the return spring.

[0012] Preferably, an operating plate is provided at the end of the plug pin away from the connecting block, and a positioning plate is provided on the left part of the protective edge. The positioning plate has a through-hole through which the operating plate can pass. The side of the operating plate facing the plug pin can be attached to the side of the positioning plate away from the plug pin, so that the plug pin is disengaged from the plug hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are: In this invention, multiple plates can be combined and connected by a connecting mechanism, thereby adjusting the ramp length according to the height of the steps to meet the needs of steps of different heights. At the same time, when individual plates are damaged, the corresponding hand-tightening bolts can be removed by turning counterclockwise to disassemble and replace the damaged plates, thereby reducing the replacement and use costs of the ramp, saving resources and improving practicality.

[0014] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the middle plate of this utility model; Figure 3 for Figure 2 A magnified structural diagram of the A mark in the diagram; Figure 4 for Figure 2 A schematic diagram of the enlarged structure of the B mark in the diagram; Figure 5 for Figure 1 The bottom shows a structural diagram.

[0016] In the diagram: 1. Plate; 2. Protective edge; 3. Positioning mechanism; 4. Connecting mechanism; 5. Hinge; 6. Anti-slip stripes; 7. Connecting plate; 8. Connecting hole; 9. Through port; 10. Positioning plate; 11. Operating plate; 12. Support plate No. 1; 13. Return spring; 14. Support plate No. 2; 15. Sliding hole; 16. Connecting block; 17. Insert pin; 18. Insertion hole; 19. Limiting plate; 20. Sleeve plate; 21. Half-enclosure plate; 22. Hand-tightening bolt; 23. Bolt hole; 24. Insertion cavity; 25. Nut; 26. Reinforcing stripes. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0018] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The directions or positional relationships shown are for the purpose of describing this utility model only, and are not intended to indicate or imply that the device or component 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.

[0019] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0020] Example Please see Figures 1-5 The present invention provides the following technical solution: a wheelchair ramp, comprising a plate 1, with connecting mechanisms 4 installed on both sides of the plate 1, and multiple plates 1 connected by the connecting mechanisms 4 to form a ramp; A protective edge 2 is provided at the top edge of the plate 1; The panel 1 located in the middle of the ramp is split into two parts that are connected by multiple hinges 5, allowing the ramp to be folded in half at both ends. It also includes a positioning mechanism 3, which is set on the plate 1 in the middle of the ramp and is used to fix the position of multiple connected plates 1 after they are folded into a flat ramp.

[0021] Preferably, by Figure 2 and Figure 3 As shown, in this embodiment, the protective edges 2 on both sides of the connecting mechanism 4 are provided with symmetrically distributed connecting plates 7, and the other end is provided with symmetrically distributed semi-enclosed plates 21. The semi-enclosed plates 21 and the bracket of the protective edge 2 have a plug-in cavity 24 that matches the connecting plate 7. The connecting plate 7 is provided with a connecting hole 8. Bolt holes 23 are provided on both the semi-enclosed panel 21 and the protective edge 2. The bolt holes 23 are the same size as the connecting holes 8. The inner wall of the protective edge 2 is provided with nuts 25 that are coaxial with the bolt holes 23. Hand-tightening bolts 22 that match the nuts 25 are inserted into the semi-enclosed panel 21. When individual panels 1 are damaged, the corresponding hand-tightening bolts 22 can be removed by turning counterclockwise to disassemble and replace the damaged panels 1, thereby reducing the replacement and use costs of the ramp, saving resources and improving practicality.

[0022] Preferably, by Figure 2 and Figure 3 As shown, in this embodiment, the top surface of the plate 1 is provided with a plurality of anti-slip stripes 6 that are perpendicular to the protective edge 2. This arrangement has an anti-slip function and facilitates the passage of wheelchairs.

[0023] Preferably, by Figure 5 As shown, in this embodiment, the bottom surface of the plate 1 is provided with a plurality of reinforcing stripes 26 distributed parallel to the protective edge 2. This arrangement helps to improve the structural strength of the device.

[0024] Preferably, by Figures 1 to 4As shown, in this embodiment, the middle plate 1 is composed of two rotatably connected left and right parts, which are the same size. The positioning mechanism 3 includes a first support plate 12 and a second support plate 14 disposed on the left protective edge 2, and a pin 17 slidably passing through the first support plate 12 and the second support plate 14. The first support plate 12 and the second support plate 14 are each provided with a sliding hole 15 that is adapted to the pin 17. Located on the right protective edge 2 and in the same horizontal direction as the plug pin 17, a connecting block 16 is provided. The connecting block 16 has a plug hole 18 that is compatible with the plug pin 17. The left and right parts of the plate 1 can be folded or laid flat by multiple hinges 5, and after being laid flat, they are limited by the plug pins 17 and connecting blocks 16 on both sides.

[0025] A limiting plate 19 is provided on the top surface of the left protective edge 2. When the left and right plates 1 are laid flat, the bottom surface of the limiting plate 19 is attached to the top surface of the right protective edge 2, thereby achieving the limiting function and facilitating the quick unfolding of the plate 1.

[0026] A socket plate 20 is fixedly fitted onto the pin 17. A return spring 13 is wrapped around the outside of the pin 17. The return spring 13 contacts the first support plate 12 and the socket plate 20 respectively. The pin 17 can be displaced toward the connecting block 16 by the elastic force of the return spring 13.

[0027] An operating plate 11 is provided at the end of the insertion pin 17 away from the connecting block 16. A positioning plate 10 is provided on the left protective edge 2. The positioning plate 10 has a through hole 9 through which the operating plate 11 can pass. The side of the operating plate 11 facing the insertion pin 17 can be attached to the side of the positioning plate 10 away from the insertion pin 17, so that the insertion pin 17 is disengaged from the insertion hole 18. During use, during the folding process, the operating plate 11 is pulled to disengage the insertion pin 17 from the insertion hole 18. After the operating plate 11 passes through the through hole 9 and is rotated, when the operating plate 11 is pushed by the return spring 13, the operating plate 11 is attached to the positioning plate 10 to achieve a limit. After operating the other insertion pin 17 in the same way, the device can be folded in half, thereby achieving the function of convenient storage and carrying. When unfolded for use, the device is folded and unfolded. When the bottom surface of the limiting plate 19 is in contact with the top surface of the right protective edge 2, it reaches a flat state. Then, the insertion pins 17 can be pulled and rotated to insert them into the corresponding insertion holes 18, which will stabilize the device. The unfolded device can be placed at an angle on the steps and the bottom surface to allow wheelchairs to pass through, making it easy to use.

[0028] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made by those skilled in the art based on the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A wheelchair ramp, comprising a slab (1), characterized in that: Both sides of the plate (1) are equipped with connecting mechanisms (4), and multiple plates (1) are connected by the connecting mechanisms (4) to form a ramp for walking. A protective edge (2) is provided on the top edge of the plate (1); The plate (1) located in the middle of the ramp is split into two parts that are rotatably connected by multiple hinges (5), so that the two ends of the ramp can be folded in half; It also includes a positioning mechanism (3), which is set on the plate (1) in the middle of the ramp and is used to fix the position of the multiple connected plates (1) after they are folded into a flat ramp.

2. A wheelchair ramp according to claim 1, characterised in that: The connecting mechanism (4) has symmetrically distributed connecting plates (7) on the protective edges (2) on both sides, and symmetrically distributed half-enclosure plates (21) on the other end. The half-enclosure plate (21) and the support of the protective edge (2) have a plug-in cavity (24) that matches the connecting plate (7). The connecting plate (7) has a connecting hole (8). Bolt holes (23) are provided on both the half-enclosure plate (21) and the protective edge (2). The bolt holes (23) are the same size as the connecting holes (8). A nut (25) coaxial with the bolt hole (23) is provided on the inner wall of the protective edge (2). A hand-tightening bolt (22) matching the nut (25) is inserted into the half-enclosure plate (21).

3. A wheelchair ramp according to claim 1, characterised in that: The top surface of the plate (1) is provided with a plurality of anti-slip stripes (6) that are perpendicular to the protective edge (2).

4. The wheelchair ramp of claim 1, wherein: The bottom surface of the plate (1) is provided with a plurality of reinforcing stripes (26) that are parallel to the protective edge (2).

5. The wheelchair ramp of claim 1, wherein: The plate (1) in the middle is composed of two rotatably connected left and right parts, which are the same size. The positioning mechanism (3) includes a first support plate (12) and a second support plate (14) set on the protective edge (2) of the left part, and a pin (17) slidably passing through the first support plate (12) and the second support plate (14). The first support plate (12) and the second support plate (14) are both provided with sliding holes (15) that are adapted to the pin (17). A connecting block (16) is provided on the right protective edge (2) and in the same horizontal direction as the plug pin (17). The connecting block (16) has a plug hole (18) that is compatible with the plug pin (17). The left and right parts of the plate (1) can be folded or laid flat by multiple hinges (5), and after being laid flat, they are limited by the plug pins (17) and the connecting block (16) on both sides.

6. A wheelchair ramp according to claim 5, characterised in that: A limiting plate (19) is provided on the top surface of the left part of the protective edge (2). When the left and right parts of the plate (1) are laid flat, the bottom surface of the limiting plate (19) is in contact with the top surface of the right part of the protective edge (2).

7. A wheelchair ramp according to claim 5, characterised in that: A socket plate (20) is fixedly sleeved on the plug pin (17). A return spring (13) is sleeved around the outside of the plug pin (17). The return spring (13) contacts the first support plate (12) and the socket plate (20) respectively. The plug pin (17) can be displaced toward the connecting block (16) by the elastic force of the return spring (13).

8. A wheelchair ramp according to claim 5, characterized in that: An operating plate (11) is provided at one end of the plug pin (17) away from the connecting block (16). A positioning plate (10) is provided on the left part of the protective edge (2). The positioning plate (10) has a through hole (9) through which the operating plate (11) can pass. The side of the operating plate (11) facing the plug pin (17) can be attached to the side of the positioning plate (10) away from the plug pin (17) so that the plug pin (17) can be disengaged from the plug hole (18).

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