A platform subsidence type safety protection device
By using a platform sinking safety protection device, which combines lifting drive components and protective components, the problems of space occupation and complex modification of traditional platform doors are solved, achieving simple installation, good protection and power saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY ECONOMIC & PLANNING RES INST
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-19
AI Technical Summary
In the existing technology, traditional platform screen doors occupy space and are complicated to modify, affecting passengers' view and the usable space of the platform.
The platform sinking safety protection device is adopted, which includes a lifting drive component and a protective component. The lifting of the protective component is achieved through the lifting channel. Combined with the elastic compensation mechanism and independent control, the structure is simple and adaptable to different vehicle models.
It achieves convenient installation of safety protection devices, reduces the amount of modification work, provides good protection, saves electricity, avoids safety hazards, and is suitable for various vehicle models.
Smart Images

Figure CN224375567U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of platform safety protection technology, and in particular to a platform settling safety protection device. Background Technology
[0002] Currently, railway platforms both domestically and internationally are equipped with swing platform screen doors or lift-type platform screen doors, which effectively separate passengers from trains, thus ensuring passenger safety. However, traditional platform screen doors occupy a certain amount of platform space, reducing the effective usable space of the platform, and also obstructing passengers' view.
[0003] In the prior art, a Chinese invention patent document with publication number CN112796611A and publication date of May 14, 2021, was proposed to solve the above-mentioned technical problems. The technical solution disclosed in this patent document is as follows: A lifting platform screen door system includes a control unit, a communication unit, and several lifting door units arranged side by side. The lifting door units are raised and lowered in a pit located at the edge of the platform and preset along the length direction. The control unit controls the raising and lowering actions of each lifting door unit through the communication unit. Each lifting door unit includes a mounting frame fixed in the pit and a lifting door plate vertically raised and lowered on the mounting frame by a lifting drive unit, as well as a self-locking mechanism for locking the raised door plate in place on the mounting frame. The top of the mounting frame is provided with an openable and closable horizontal cover plate. When the lifting door plates of several adjacent lifting door units are raised from the pit to the highest point, the part above the platform ground level constitutes a platform screen door connected end to end. The lifting door plates of the lifting door units can be completely lowered into the pit.
[0004] While the above technical solution can achieve the raising and lowering of platform screen doors, it requires the construction of a foundation pit on the platform, resulting in a complex structure and significant modifications to the platform. Summary of the Invention
[0005] To address the aforementioned technical problems, this utility model proposes a platform settlement-type safety protection device, which can effectively solve the problem of significant platform modifications required by existing technologies.
[0006] This utility model is achieved by adopting the following technical solution:
[0007] A platform settling safety protection device includes several lifting drive components, with a protective component between two adjacent lifting drive components; a lifting channel is provided on the finished surface of the platform along the length direction; one end of each lifting drive component is connected to the platform wall below the finished surface of the platform, and the other end is connected to the protective component, driving the protective component to rise and fall within the lifting channel.
[0008] An elastic compensation mechanism is also provided between the protective component and the lifting drive component. The elastic compensation mechanism includes a ball joint, a compression spring, and a telescopic shaft. One end of the telescopic shaft is fitted with a compression spring and then embedded into the end of the protective component. The other end is connected to the lifting drive component through the ball joint.
[0009] The lifting drive unit is connected to the platform wall below the finished surface of the platform via a mounting base.
[0010] The protective component is a railing.
[0011] The lifting channel includes a through hole that matches the lifting drive component and a groove that matches the railing.
[0012] The top of the lifting drive component is also provided with a cover plate that matches the through hole.
[0013] The lifting drive component is a multi-stage telescopic electric cylinder, and multiple protective components are provided vertically between two adjacent lifting drive components.
[0014] The lifting drive components and protective components are arranged in groups, and the lifting control between each group is independent.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. The safety protection device in this utility model has a simple structure and is easy to install. When modifying existing platforms, it can make full use of the existing platform structure, requiring only the installation of a lifting channel on the platform, resulting in minimal modification.
[0017] 2. In this utility model, the problem of asynchronous lifting of adjacent lifting drive components can be effectively solved by setting up an elastic compensation mechanism.
[0018] 3. One end of the lifting drive component is connected to the platform wall below the finished surface of the platform via a mounting base, which facilitates a better and more reasonable arrangement of the position of the lifting drive component and further allows for a more reasonable arrangement of the position of the safety protection device.
[0019] 4. The protective component is a railing with a small windward surface, which can reduce the impact of wind pressure from trains passing through stations on this safety protection device.
[0020] 5. The lifting channel includes through holes that match the lifting drive components and grooves that match the railings. It does not affect the lifting of the protective device and can further reduce the workload of platform modification. During installation, it is only necessary to drill the through holes required for the lifting drive components on the finished surface of the platform and process the grooves for storing the railings on the finished surface of the platform.
[0021] 6. The top of the lifting drive component is also provided with a cover plate that matches the through hole. When this safety protection device is not used, the through hole can be covered by the cover plate to avoid safety hazards.
[0022] 7. Multiple protective components are provided vertically between two adjacent lifting drive components, which makes the protection effect of this safety protection device better. The multi-stage telescopic electric cylinder can realize the opening and closing of multiple protective components.
[0023] 8. The lifting drive component and the protective component are set in groups, and the lifting control between each group is independent, so that this utility model can open as much as needed for various vehicle models, without having to open all of them, thus saving electricity. Attached Figure Description
[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein:
[0025] Figure 1 This is a schematic cross-sectional view of the present invention. Figure 1 ;
[0026] Figure 2 This is a schematic cross-sectional view of the present invention. Figure 2 ;
[0027] Figure 3 This is a schematic diagram of the installation of this utility model. Figure 1 ;
[0028] Figure 4 This is a schematic diagram of the installation of this utility model. Figure 2 ;
[0029] Figure 5 This is a schematic diagram of the elastic compensation mechanism in this utility model;
[0030] Figure 6 This is a schematic diagram of the railing when it is unfolded in this utility model;
[0031] Figure 7 This is a schematic diagram of the structure of the railing when it is retracted in this utility model;
[0032] Marked in the image:
[0033] 1. Lifting drive unit; 2. Mounting base; 3. Door control unit; 4. Handrail; 5. Ball joint; 6. Compression spring; 7. Telescopic shaft; 8. Through hole; 9. Groove; 10. Cover plate; 11. Platform wall; 12. Finished platform surface. Detailed Implementation
[0034] Example 1
[0035] As a basic embodiment of this utility model, the utility model includes a platform sinking safety protection device, comprising a plurality of lifting drive components 1, with a protective component provided between two adjacent lifting drive components 1. In this embodiment, the lifting drive components 1 and the protective component can adopt conventional technical means in the art; for example, the lifting drive component 1 can be a cylinder or an electric cylinder, etc. The protective component can be a railing 4, a rope, a protective plate, etc.
[0036] A lifting channel is provided along the length of the finished platform surface 12. The lifting channel is a vertical slot penetrating the finished platform surface 12. The width of the slot can be uniform or adaptively adjusted according to the dimensions of the lifting drive component 1 and the protective component. One end of the lifting drive component 1 is connected to the platform wall 11 below the finished platform surface 12, and the other end is connected to the protective component. The motion control of the lifting drive component 1 adopts conventional technical means in the art, and this embodiment does not improve its connection relationship and control method. For example, the lifting drive component 1 can be connected to the control component through a communication component. Under the control of the control component, it drives the protective component to move up and down within the lifting channel. That is, when protection is needed, the lifting drive component 1 drives the protective component to extend upward out of the slot; when protection is not needed, the lifting drive component 1 drives the protective component to move downward and hide below the finished platform surface 12.
[0037] Example 2
[0038] In a preferred embodiment of this utility model, a platform settling safety protection device is provided, comprising a plurality of lifting drive components 1, with a protective component between adjacent lifting drive components 1. A lifting channel is provided along the length of the platform finished surface 12. One end of each lifting drive component 1 is connected to the platform wall 11 below the platform finished surface 12, and the other end is connected to the protective component, driving the protective component to rise and fall within the lifting channel.
[0039] In order to reasonably arrange the position of the safety protection device, the lifting drive component 1 can be connected to the platform wall 11 below the platform finished surface 12 through the mounting base 2.
[0040] Furthermore, to address the potential asynchrony between two adjacent lifting drive components 1, an elastic compensation mechanism is provided between the protective component and the lifting drive component 1. This elastic compensation mechanism includes a ball joint 5, a compression spring 6, and a telescopic shaft 7. One end of the telescopic shaft 7 is fitted with the compression spring 6 and then embedded into the end of the protective component, thus making the length of the protective component variable. The other end of the telescopic shaft 7 is connected to the lifting drive component 1 via the ball joint 5, which can rotate freely.
[0041] Example 3
[0042] In another preferred embodiment of this utility model, a platform sinking safety protection device is provided, comprising a plurality of lifting drive components 1, with a protective component between adjacent lifting drive components 1. The lifting drive component 1 can be a telescopic electric cylinder, and the protective component can be a railing 4. A lifting channel is provided on the finished platform surface 12 along its length. The lifting channel has a uniform width and penetrates vertically through a slot in the finished platform surface 12. One end of each lifting drive component 1 passes downward through the slot and connects to the platform wall 11 below the finished platform surface 12, while the other end connects upward to the protective component, driving the protective component to rise and fall within the lifting channel, allowing the protective component to extend upward or retract downward into the slot.
[0043] Furthermore, to improve the protective effect, the lifting drive component 1 can be a multi-stage telescopic electric cylinder, with multiple railings 4 vertically positioned between adjacent multi-stage telescopic electric cylinders. The multi-stage telescopic electric cylinders can be used to open and retract multiple railings 4.
[0044] Furthermore, to reduce safety hazards, a cover plate 10 is provided to match the through channel, and the cover plate 10 is set on top of the multi-stage telescopic electric cylinder. When the multi-stage telescopic electric cylinder is hidden below the finished surface 12 of the platform, the cover plate 10 can cover the through channel.
[0045] Example 4
[0046] In another preferred embodiment of this utility model, a platform settling safety protection device is provided, comprising a plurality of lifting drive components 1, with a protective component between adjacent lifting drive components 1. A lifting channel is provided on the finished surface 12 of the platform along its length. One end of each lifting drive component 1 is connected to the platform wall 11 below the finished surface 12, and the other end is connected to the protective component, driving the protective component to rise and fall within the lifting channel.
[0047] The lifting drive component 1 and the protective component are arranged in groups, and the lifting control between each group is independent, enabling the system to open only what is needed for various vehicle models, saving power. Furthermore, the length of the protective component can be set according to the door position and carriage configuration of different vehicle models, providing strong scalability.
[0048] Example 5
[0049] As the preferred embodiment of this utility model, please refer to the appendix to the specification. Figure 1 ~Instruction manual included Figure 3This utility model includes a platform sinking safety protection device, comprising several lifting drive components 1, and several protective components arranged vertically at intervals between adjacent lifting drive components 1. The protective components can be rigid railings 4, and the lifting drive components 1 can be multi-stage telescopic electric cylinders, which enable the opening and closing of multiple railings 4.
[0050] The platform's finished surface 12 is provided with a lifting channel extending along its length. This lifting channel includes a through hole 8 that matches the lifting drive component 1 and a groove 9 that matches the handrail 4. The through hole 8 vertically penetrates the platform's finished surface 12, and the groove 9 is located on the surface of the platform's finished surface 12. This structural design requires minimal modification to the platform and is extremely advantageous for installing this device on existing platforms.
[0051] One end of the lifting drive component 1 passes downward through the through hole 8 and is connected to the platform wall 11 below the finished platform surface 12 via the mounting base 2. The other end of the lifting drive component 1 is connected to the railing 4. The lifting drive assembly is also connected to a door control unit 3. Under the control of the door control unit 3, when protection is required, refer to the appendix of the instruction manual. Figure 6 This causes the railing 4 to extend upwards into the groove 9 and open, providing protection. When protection is not needed, refer to the instruction manual. Figure 7 This causes the railing 4 to retract and hide below the finished platform surface 12, ensuring that there are no devices on the finished platform surface 12 and maximizing the space utilization of the platform.
[0052] Furthermore, the top of the multi-stage telescopic electric cylinder is also provided with a cover plate 10 that matches the through hole 8. When no safety protection device is required, the cover plate 10 can cover the through hole 8, and the railing 4 can cover the groove 9, preventing external impurities from entering the cover plate 10 and the groove 9, thus avoiding affecting the lifting performance.
[0053] Refer to the instruction manual appendix Figure 5 An elastic compensation mechanism is also provided between the protective component and the lifting drive component 1. The elastic compensation mechanism includes a ball joint 5, a compression spring 6, and a telescopic shaft 7. One end of the telescopic shaft 7 is fitted with the compression spring 6 and embedded in the end of the protective component, while the other end is connected to the lifting drive component 1 through the ball joint 5.
[0054] Further, please refer to the appendix to the instruction manual. Figure 4 The lifting drive component 1 and the protective components can be installed in groups, with independent lifting control between each group. This allows for the opening of all sections of the vehicle when needed, saving power. Furthermore, the span of the railing in each group can be adjusted according to the door positions and carriage configurations of different vehicle models, offering strong scalability.
[0055] In summary, any other corresponding modifications made by those skilled in the art based on the technical solution and concept of this utility model without creative mental effort after reading this utility model document are all within the scope of protection of this utility model.
Claims
1. A platform settlement-type safety protection device, wherein the platform includes a platform wall (11) and a finished platform surface (12) disposed above the platform wall (11); characterized in that: It includes several lifting drive components (1), and a protective component is provided between two adjacent lifting drive components (1); a lifting channel is provided on the finished surface (12) of the platform along the length direction; one end of the lifting drive component (1) is connected to the platform wall (11) below the finished surface (12) of the platform, and the other end is connected to the protective component, driving the protective component to rise and fall in the lifting channel.
2. The platform settlement safety protection device according to claim 1, characterized in that: An elastic compensation mechanism is also provided between the protective component and the lifting drive component (1). The elastic compensation mechanism includes a ball joint (5), a compression spring (6), and a telescopic shaft (7). One end of the telescopic shaft (7) is fitted with the compression spring (6) and then embedded into the end of the protective component. The other end is connected to the lifting drive component (1) through the ball joint (5).
3. The platform settlement safety protection device according to claim 2, characterized in that: The lifting drive unit (1) is connected to the platform wall (11) below the platform finished surface (12) via the mounting base (2).
4. A platform settlement-type safety protection device according to any one of claims 1 to 3, characterized in that: The protective component is a railing (4).
5. The platform settlement safety protection device according to claim 4, characterized in that: The lifting channel includes a through hole (8) that matches the lifting drive (1) and a groove (9) that matches the railing (4).
6. The platform settlement safety protection device according to claim 5, characterized in that: The top of the lifting drive component (1) is also provided with a cover plate (10) that matches the through hole (8).
7. A platform settlement-type safety protection device according to claim 6, characterized in that: The lifting drive component (1) is a multi-stage telescopic electric cylinder, and multiple protective components are provided vertically between two adjacent lifting drive components (1).
8. A platform settlement safety protection device according to any one of claims 1 to 3, characterized in that: The lifting drive component (1) and the protective component are set up in groups, and the lifting control between each group is independent.