A modular ramp system for the renovation of accessible building entrances.

Abstract

This utility model relates to a modular ramp system for the renovation of accessible building entrances and exits, belonging to the technical field of accessible building facilities. It addresses the problems of existing accessible ramps, such as long construction cycles, insufficient compliance, cumbersome assembly, unstable connection structures, poor safety, and poor adaptability. This utility model includes a ramp module, a handrail module, and a platform. The ramp module includes a first ramp module, a second ramp module, and a top platform module. The first ramp module, the second ramp module, and the top platform module are horizontally connected by a mortise and tenon structure. The mortise and tenon structure includes an elastic latch on the tenon, a groove in the mortise, and a guide ramp. This utility model achieves rapid locking and fixation through the engagement of the guide ramp and the elastic latch, reducing the difficulty of centering the mortise and tenon structure. Installation or disassembly can be completed without tools, improving construction efficiency, ensuring a firm connection, and enhancing safety.

Description

Technical Field

[0001] This utility model relates to the field of building accessibility facilities technology, and in particular to a modular ramp system for the renovation of building accessibility entrances and exits. Background Technology

[0002] Accessible ramps are key facilities that help the elderly, wheelchair users and other mobility aid users overcome differences in ground level safely and conveniently.

[0003] However, existing accessible ramp systems struggle to achieve a good balance between compliance, flexibility, safety, and ease of installation. Existing fixed concrete ramps suffer from significant compliance deficiencies, such as slopes far exceeding the 1:12 standard allowable width, insufficient clearance of less than 1.20 meters, and the lack of required rest platforms and handrails, leading to difficulties in use and safety hazards. While these ramps are structurally stable, they are permanent facilities, resulting in long construction periods.

[0004] In pursuit of flexibility, simple metal and rubber ramps, as well as small, modular ramps, have emerged on the market. While they enable rapid assembly, they generally suffer from excessively steep slopes and a lack of necessary safety features (such as barriers and compliant handrails). Some, though achieving preliminary modularity, have fundamental design flaws: the unit sizes are too small, resulting in a large number of assembly units, complex interfaces, and low installation efficiency. They are also only suitable for scenarios with low elevation differences (e.g., <0.1 meters). More importantly, the connection structures between modules (such as simple pins or overlaps) lack sufficient strength, failing to form reliable mechanical interlocks. This leads to loosening and detachment at the connections, making them unable to effectively resist horizontal thrust and bending moments generated during use. This poses a structural safety risk for long-term use and fails to meet the connection strength requirements for different slope differences. Utility Model Content

[0005] In view of the above problems, this utility model aims to design a modular ramp system for the renovation of accessible entrances and exits in buildings, to solve the problems of existing accessible ramps not meeting design specifications, long construction period, weak connection between modules and poor adaptability. It has modular assembly characteristics and can meet the needs of manual installation, strong connection and safety protection renovation.

[0006] The objective of this utility model is mainly achieved through the following technical solutions:

[0007] This utility model provides a modular ramp system for the renovation of accessible entrances and exits in buildings, including ramp modules and mortise and tenon structures. The ramp modules include a first ramp module and a second ramp module, which are connected by the mortise and tenon structure. The mortise and tenon structure includes a tenon and a mortise groove. The tenon is provided with an elastic latch, and the mortise groove is provided with a groove that cooperates with the elastic latch. The mortise groove is also provided with a guide slope. Through the guide slope, the elastic latch contracts under radial pressure and achieves self-locking fixation under the action of elastic restoring force after being inserted into the groove.

[0008] Furthermore, the longitudinal section of the second ramp module is trapezoidal.

[0009] Furthermore, the second ramp module has a rectangular longitudinal section, a T-shaped protrusion at the top, and a T-shaped groove at the bottom of the first ramp module. The protrusion and the groove cooperate to achieve a vertical connection between the second ramp module and the first ramp module.

[0010] Furthermore, the ramp module is provided with a platform on the air-facing side, and the platform is provided with an installation port.

[0011] Furthermore, it also includes a handrail module, which includes a horizontal handrail module, a horizontal handrail module, a vertical handrail module, and a handrail connector. The horizontal handrail module is connected to the horizontal handrail module through the handrail connector, and the vertical handrail module is vertically connected to the horizontal handrail module through the handrail connector. The bottom end of the vertical handrail module is inserted into the mounting port.

[0012] Furthermore, the ramp module also includes a top platform module; the bottom of one side of the top platform module is provided with the tenon groove for connecting with the adjacent ramp module, and the bottom of the adjacent side of the top platform module is provided with the tenon for connecting with the adjacent ramp module or docking with the building entrance.

[0013] Furthermore, the ramp module also includes a top platform module; one side of the top platform module is provided with the mortise and tenon groove for connecting with an adjacent ramp module, and the other side of the top platform module is provided with the tenon for connecting with an adjacent ramp module or docking with a building entrance.

[0014] Furthermore, the longitudinal slope ratio of the ramp module is 1:12.

[0015] Furthermore, the surface of the ramp module is provided with an anti-slip texture.

[0016] Furthermore, the ramp module has a reflective warning strip embedded in the edge of the free side.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] (1) The modular ramp system used for the renovation of accessible entrances and exits in buildings adopts a modular design. The modules are connected by a guide ramp and elastic latch design for the tenon and mortise. The guide ramp at the entrance of the mortise guides the tenon to be aligned, effectively correcting lateral deviations during installation, reducing the difficulty of alignment, and allowing installation or disassembly to be completed without tools, thus improving construction efficiency. The guide ramp design of the mortise guides and aligns the tenon, avoiding stress concentration caused by installation deviations, ensuring that the elastic latch can be evenly embedded in the slot, allowing the connection surfaces to fully contact, improving the stiffness and deformation resistance of the joint, thereby enhancing the structural stability of the entire ramp system.

[0019] (2) By combining different numbers of second ramp modules and top platform modules, the system can flexibly adapt to common slope differences. In addition, the top platform module can be used as an intermediate turning or rest platform, enabling the ramp system to achieve right-angle turns, segmenting long ramps, solving the problem of ramp setup in narrow spaces, and broadening the applicability of the system.

[0020] (3) The handrail module ensures that the handrail remains vertically stressed at different slopes. The barrier acts as a physical barrier on the open side of the ramp to prevent wheelchairs from tipping over or pedestrians from falling. The barrier and the horizontal handrail module form a dual protection system of fall prevention and auxiliary support to protect the user's safety. In addition, by limiting the longitudinal slope ratio of the ramp module to 1:12, it ensures that users can go uphill with less effort and go downhill with controllable force, further protecting the user's safety.

[0021] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0022] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0023] Figure 1 Detailed installation diagram of Embodiment 1;

[0024] Figure 2 This is a schematic diagram of the modular structure connection in a specific embodiment;

[0025] Figure 3 This is a schematic diagram of the mortise and tenon structure in a specific embodiment;

[0026] Figure 4 Installation diagram (I) for specific embodiment two;

[0027] Figure 5 Installation diagram (II) of specific embodiment two;

[0028] Figure 6 A schematic diagram of the mortise and tenon structure location in specific embodiment three;

[0029] Figure 7 Specific embodiment four: ramp module installation diagram (I);

[0030] Figure 8 Specific embodiment four: Ramp module installation diagram (II).

[0031] Figure label:

[0032] 1-Ramp module; 11-First ramp module; 110-Groove; 12-Second ramp module; 120-Protrusion; 13-Top platform ramp module; 2-Torch and tenon structure; 21-Tenon; 210-Elastic latch; 22-Tongue; 220-Slot; 221-Guide slope; 3-Baffle; 31-Mounting port; 4-Handrail module; 41-Handrail horizontal module; 42-Handrail crossbar module; 43-Handrail upright module; 44-Handrail connector. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0034] Example 1

[0035] A specific embodiment of this utility model is as follows: Figure 1 The present invention discloses a modular ramp system for the renovation of accessible entrances and exits of buildings, including ramp module 1, mortise and tenon structure 2, barrier 3 and handrail module 4, wherein the mortise and tenon structure 2 includes tenon 21 and mortise 22.

[0036] The ramp module 1 includes a first ramp module 11 and a second ramp module 12. The first ramp module 11 is connected to the ground as the starting part of the ramp. Its longitudinal cross-section is triangular. The surface of the ramp module 1 is provided with anti-slip texture to prevent users from slipping. The longitudinal cross-section of the second ramp module 12 is trapezoidal. One end of the second ramp module 12 is connected to the first ramp module 11, and the other end of the second ramp module 12 is connected to the building entrance.

[0037] like Figure 2As shown, the bottom of the first ramp module 11 is provided with a number of tenons 21, and the bottom of one side of the second ramp module 12 is provided with mortises 22 corresponding to the tenons 21. The number of tenons 21 and mortises 22 are equal. Figure 3 As shown, elastic latches 210 are symmetrically arranged on both sides of the tenon 21, and slots 220 are symmetrically arranged circumferentially on the mortise 22. Guide ramps 221 are provided on both sides of the entrance of the mortise 22. When the tenon 21 approaches the joint under the guidance of the guide ramps 221 of the mortise 22, the elastic latches 210 begin to contact the inner wall of the mortise 22. The elastic latches 210 contract under radial pressure. When the elastic latches 210 reach the position of the slots 220, the radial constraint is released, and the elastic latches 210 are engaged in the slots 220 under the action of elastic restoring force, thus realizing the fixed connection between the first ramp module 11 and the second ramp module 12. This connection method simplifies the installation operation process, shortens the time for a single docking, and allows installers to deploy the modular ramp system by hand.

[0038] Both the first ramp module 11 and the second ramp module 12 have a stop 3 on their outer edges, and the two ends of the stop 3 have mounting openings 31. The handrail module 4 includes a horizontal handrail module 41, a horizontal handrail module 42, a vertical handrail module 43, and a handrail connector 44. The handrail connector 44 is a universal joint, and the horizontal handrail module 41 is a U-shaped rod. The horizontal handrail module 41 is horizontally installed at both ends of the horizontal handrail module 42 through the handrail connector 44. One end of the vertical handrail module 43 is vertically connected to the horizontal handrail module 42 through the handrail connector 44, and the other end of the vertical handrail module 43 is connected to the mounting opening 31. The stop 3 and the handrail module 42 are connected to the horizontal handrail module 42. Block 4 provides necessary safety protection for users. The horizontal armrest module 41 extends horizontally through the armrest connector 44. Together with the armrest crossbar module 42, it provides full-range grip support. The connection between the armrest column module 43 and the mounting port 31, as well as the universal head adjustment function, ensures that the armrest always maintains vertical force under different slopes. The barrier 3 acts as a physical barrier on the open side to prevent wheelchairs from tipping over or pedestrians from falling. Together with the horizontal armrest module 41, it forms a dual protection system of fall prevention and auxiliary support to protect the safety of users.

[0039] The first ramp module 11 and the second ramp module 12 have embedded reflective warning strips to enhance nighttime visibility and indicate changes in elevation. All exposed corners of ramp module 1 are rounded to prevent sharp corners from causing injury to people and objects.

[0040] Compared to existing ramps, this embodiment sets the ramp module 1 as a standardized module, ensuring strict compliance with national standards during installation. It achieves a longitudinal slope ratio of 1:12, guaranteeing smooth pushing by the user. The guide ramp 221 matches the tenon 21's engagement stroke, ensuring that the tenon 21 and mortise 22 are in a guided constraint state from initial contact to complete engagement. When the tenon 21 and mortise 22 begin to engage, the guide ramp 221 first contacts and guides the tenon 21 to move along a preset trajectory. The gradual slope of the guide ramp 221 corrects lateral deviations until the tenon 21 and mortise 22 achieve initial alignment, reducing the alignment difficulty for installers during construction. Even with some initial deviation, automatic correction can still be achieved through the physical guidance of the guide ramp.

[0041] Example 2

[0042] Another specific embodiment of this example is, for example... Figure 4 As shown, the difference from Embodiment 1 is that the ramp module 1 also includes a top platform module 13. The other structures are the same as in Embodiment 1, and will not be described in detail.

[0043] like Figure 5 As shown, each end of the second ramp module 12 is provided with several tenons 21, and the other end of the bottom of the second ramp module 12 is provided with several mortises 22. Through the cooperation of the tenons 21 and mortises 22, the second ramp module 12 can be connected with the adjacent ramp. The top platform module 13 has a rectangular cross-section. One side of the bottom of the top platform module 13 is provided with a mortise 22, and the opposite side of the top platform module 13 is provided with a tenon 21, which can realize the horizontal connection with the adjacent ramp module or the building entrance.

[0044] By adding a top platform module 13, which has a tenon and mortise structure on the opposite side, it can be connected horizontally to adjacent ramp modules or building entrances. The top platform module 13 can be used as a rest platform. When the ramp is too long, by dividing the long ramp into sections, the top platform module 13 provides users with a safe and stable rest area.

[0045] Example 3

[0046] Another specific embodiment of this example is, for example... Figure 6 As shown, the difference from Embodiment 2 is that the tenon and mortise structure 2 of the top platform module 13 is set in a different position. The other structures are the same as in Embodiment 2, and will not be described in detail.

[0047] The top platform module 13 has a tenon 22 at the bottom of one side and a tenon 21 on the adjacent vertical side, which can be used to connect with the adjacent ramp module or building entrance.

[0048] When installation space is narrow, the ramp system can achieve right-angle turns, solving the problem of ramp setup in narrow spaces, expanding the system's applicability, meeting the needs of ramp modifications with different ramp differences, and further enhancing the versatility and flexibility of the ramp module.

[0049] Example 4

[0050] Another specific embodiment of this example is, for example... Figure 7 As shown, the difference from Embodiment 2 is that the structure of the second ramp module 12 is different, while the other structures are the same as in Embodiment 2, and will not be described in detail.

[0051] like Figure 8 As shown, the second ramp module 12 has a rectangular cross-section and is used to adjust the total height of the ramp. The top of the second ramp module 12 is provided with a T-shaped protrusion 120 and the bottom is provided with a T-shaped groove 110. By increasing or decreasing the number of second ramp modules 12, the height of the ramp module 1 can be adjusted. The second ramp module 12 is vertically connected to other ramp modules through the T-shaped groove 110 and the T-shaped protrusion 120. The T-shaped groove 110 and the T-shaped protrusion 120 form a horizontal mechanical interlock. When multiple second ramp modules 12 are required, the connection method of the T-shaped groove 110 and the T-shaped protrusion 120 can resist the horizontal thrust and shear force generated during use, prevent misalignment or slippage between modules, and improve the connection rigidity and overall stability of the ramp system root.

[0052] By setting different numbers of second ramp modules 12, the total height of the ramp system can be adjusted to compensate for uneven ground or adapt to non-standard height differences, so as to achieve stable installation of each ramp module and meet the needs of barrier-free ramp renovation scenarios with different slope differences.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular ramp system for the renovation of accessible building entrances, characterized in that, It includes a ramp module (1) and a tenon and mortise structure (2). The ramp module (1) includes a first ramp module (11) and a second ramp module (12). The first ramp module (11) and the second ramp module (12) are connected by the tenon and mortise structure (2). The mortise and tenon structure (2) includes a tenon (21) and a mortise (22). The tenon (21) is provided with an elastic latch (210). The mortise (22) is provided with a groove (220) that cooperates with the elastic latch (210). The mortise (22) is also provided with a guide slope (221). Through the guide slope (221), the elastic latch (210) contracts under radial pressure and achieves self-locking fixation under the action of elastic restoring force after being inserted into the groove (220).

2. The modular ramp system for barrier-free building entrance renovation according to claim 1, characterized in that, The longitudinal section of the second ramp module (12) is trapezoidal.

3. The modular ramp system for barrier-free building entrance renovation according to claim 1, characterized in that, The second ramp module (12) has a rectangular longitudinal section. The top of the second ramp module (12) is provided with a T-shaped protrusion (120), and the bottom of the first ramp module (11) is provided with a T-shaped groove (110). The protrusion (120) and the groove (110) cooperate to realize the vertical connection between the second ramp module (12) and the first ramp module (11).

4. The modular ramp system for barrier-free building entrance renovation according to claim 1, characterized in that, The ramp module (1) is provided with a platform (3) on the air-facing side, and the platform (3) is provided with an installation port (31).

5. The modular ramp system for barrier-free building entrance renovation according to claim 4, characterized in that, It also includes a handrail module (4), which includes a handrail horizontal module (41), a handrail crossbar module (42), a handrail upright module (43), and a handrail connector (44). The handrail horizontal module (41) is connected to the handrail crossbar module (42) through the handrail connector (44), and the handrail upright module (43) is vertically connected to the handrail crossbar module (42) through the handrail connector (44). The bottom end of the handrail upright module (43) is inserted into the mounting port (31).

6. The modular ramp system for barrier-free building entrance renovation according to claim 1, characterized in that, The ramp module (1) also includes a top platform module (13); the bottom side of the top platform module (13) is provided with the mortise (22) for connecting with the adjacent ramp module, and the bottom side of the adjacent side of the top platform module (13) is provided with the tenon (21) for connecting with the adjacent ramp module or docking with the building entrance.

7. The modular ramp system for barrier-free building entrance renovation according to claim 1, characterized in that, The ramp module (1) also includes a top platform module (13); the bottom of one side of the top platform module (13) is provided with the tenon (22) for connecting with the adjacent ramp module, and the bottom of the other side of the top platform module (13) is provided with the tenon (21) for connecting with the adjacent ramp module or docking with the building entrance.

8. The modular ramp system for barrier-free building entrance renovation according to claim 1, characterized in that, The longitudinal slope ratio of the ramp module (1) is 1:

12.

9. The modular ramp system for barrier-free building entrance renovation according to claim 1, characterized in that, The surface of the ramp module (1) is provided with anti-slip texture.

10. The modular ramp system for the renovation of accessible building entrances according to any one of claims 1-9, characterized in that, The ramp module (1) has a reflective warning strip embedded in the edge of the air-facing side.

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