Automatic safety protection device for railway crossing approach operation
By linking the guardrail with laser sensors and servo motors, and combining it with photovoltaic power supply, the response delay and grid dependence of railway crossing protection devices have been solved, achieving rapid and automated safety protection and improving crossing safety and maintenance efficiency.
Patent Information
- Application Number
- CN202522063517.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-25
AI Technical Summary
Existing railway crossing protection technologies suffer from a disconnect between early warning and protective actions, as well as response delays. They are difficult to dynamically adjust based on train approach and are highly dependent on the municipal power grid, making it difficult to meet safety requirements and operational efficiency demands.
Design an automatic protection device that includes a laser sensor, a servo motor, and a photovoltaic panel. The laser sensor monitors the approach of a train in real time, drives the servo motor to lower the guardrail, and triggers an audible alarm. The device is powered by the photovoltaic panel and a battery, achieving fully automated protection and reducing reliance on the municipal power grid.
It enables rapid and automated protective actions, reduces response delays, lowers power consumption, meets the needs of green and low-carbon development, and improves the safety and operation and maintenance efficiency of railway crossings.
Smart Images
Figure CN224676123U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of railway crossing protection technology, specifically relating to an automatic safety protection device for railway crossing approach operations. Background Technology
[0002] As the intersection of railways and roads, railway crossings are a crucial link in the transportation system that combines convenience and risk. With the continuous increase in the density of my country's railway network, the acceleration of train operation speed, and the continuous growth of highway traffic flow, the safety issues of railway crossings are becoming increasingly prominent. Existing protection technologies are no longer able to meet the safety requirements and operation and maintenance efficiency requirements in practical applications. Therefore, it is necessary to design an automatic safety protection device for railway crossing approach operations.
[0003] Existing railway crossing protection technologies mainly rely on manual guarding, fixed signal lights for early warning, or single barriers for interception. These technologies suffer from problems such as a disconnect between early warning and protective actions and delayed response. For example, some unguarded crossings rely solely on crossing signs and signal lights for reminders, which cannot actively prevent vehicles and pedestrians from crossing prematurely. Even when barriers are installed, they still require manual operation or preset time control, making it difficult to dynamically adjust according to the actual approach of trains. Utility Model Content
[0004] The purpose of this utility model is to provide an automatic safety protection device for railway crossing approach operations that is simple in structure and reasonably designed in order to solve the above problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] An automatic safety protection device for approaching a railway crossing includes a road surface, on the inner side of which a railway track is constructed. Automatic protection components are pre-embedded on both sides of the top of the road surface near the railway track. An energy-saving component is fixedly installed on the top of the automatic protection component. The energy-saving component is electrically connected to the automatic protection component via a wire. A laser sensor is fixedly installed on one side of the energy-saving component, and an audible alarm is fixedly installed on the other side inside the energy-saving component. The laser sensor is electrically connected to the audible alarm and the automatic protection component via a wire.
[0007] As a further optimization of this utility model, the automatic protection component includes U-shaped fixing frames pre-embedded and fixed inside the road surface near both sides of the railway track. The inner top of both U-shaped fixing frames is provided with through grooves, and the inner sides of both U-shaped fixing frames are slidably fitted with protective railings.
[0008] As a further optimization of this utility model, a servo motor is fixedly installed on the top of each of the two U-shaped fixing frames, and a rope wheel is rotatably installed on the output end of each of the two servo motors. A connecting rope that is connected to the top of the guardrail through a through groove is wound around both sides of the outer side of each of the two rope wheels.
[0009] As a further optimization of this utility model, the energy-saving component includes two U-shaped mounting brackets fixedly installed on the top of the outer side of the U-shaped mounting frame. A U-shaped mounting plate is fixedly installed on the top of the inner side of each of the two U-shaped mounting brackets. A storage battery is fixedly installed on the bottom of the inner side of each of the two U-shaped mounting plates. A photovoltaic panel is threadedly fixed to the top of each of the two U-shaped mounting brackets. Both photovoltaic panels are electrically connected to the storage battery through wires.
[0010] As a further optimization of this utility model, the sound alarm is fixedly installed on one side of the bottom of the U-shaped mounting bracket, and the laser sensor is fixedly installed on the top of the other side of the U-shaped mounting bracket. The laser sensor is electrically connected to the servo motor through a wire, and the servo motor, the laser sensor and the sound alarm are all electrically connected to the battery through wires.
[0011] As a further optimization of this utility model, limit sleeves are fixedly installed at both ends of the two guardrails, and the two limit sleeves on the same side slide and fit around the outside of the U-shaped fixing frame.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. This utility model achieves fully automated protection of the entire process of "real-time detection - immediate warning - active interception" through the linkage control of laser sensor, automatic protection components and sound alarm. When the laser sensor detects the approach of a train, it can simultaneously trigger the sound alarm to sound an alarm and drive the servo motor to drive the guardrail to descend quickly to form a physical barrier. Compared with the response delay of manual control in the prior art, the protective action of this device is faster and can buy more time for road pedestrians to avoid the train.
[0014] 2. This utility model achieves autonomous collection and storage of clean energy through the coordinated operation of photovoltaic panels and storage batteries, so as to meet the daily power needs of servo motors, laser sensors and sound alarms. Excess power can be stored in the storage batteries, which can ensure the continuous normal operation of the device even in continuous rainy weather. Compared with the existing technology, this device not only reduces the dependence on the municipal power grid, but also reduces power consumption, which meets the needs of green and low-carbon development. Attached Figure Description
[0015] Figure 1 This is a front and side view of the overall structure of this utility model;
[0016] Figure 2This is a bottom side view of the overall structure of this utility model;
[0017] Figure 3 This is a three-dimensional open view of the automatic protection component of this utility model;
[0018] Figure 4 This is a three-dimensional, bottom-view closed view of the automatic protection component of this utility model.
[0019] In the diagram: 1. Road surface; 2. Railway track; 3. Automatic protection component; 300. U-shaped fixing frame; 301. Guardrail; 302. Connecting rope; 303. Servo motor; 304. Rope pulley; 305. Through groove; 4. Energy-saving component; 400. Photovoltaic panel; 401. Battery; 402. U-shaped mounting plate; 403. U-shaped mounting bracket; 5. Laser sensor; 6. Sound alarm. Detailed Implementation
[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0021] Example 1
[0022] like Figure 1 , Figure 2 As shown, an automatic safety protection device for approaching a railway crossing includes a road surface 1, which serves as the base installation carrier. A railway track 2 is constructed on the inner side of the road surface 1 according to railway track laying standards. The railway track 2 is horizontally connected to the road surface 1 to ensure smooth train passage. To achieve the automatic protection function of the crossing, automatic protection components 3 are fixedly installed on both sides of the top of the road surface 1 near the railway track 2 using a concrete pre-embedding method. The automatic protection components 3 are symmetrically distributed on the road surface 1 on both sides of the railway track 2, and the vertical distance between them and the railway track 2 meets the road vehicle passage width requirements.
[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, an energy-saving component 4 is fixedly installed on the top of the automatic protection component 3 by bolts. The energy-saving component 4 and the automatic protection component 3 are electrically connected by wires to provide stable power support for the automatic protection component 3. At the same time, a laser sensor 5 is fixedly installed on one side of the energy-saving component 4 by a bracket. The detection direction of the laser sensor 5 is towards the extension direction of the railway track 2, and it is used to monitor trains approaching the level crossing in real time. On the other side inside the energy-saving component 4, a sound alarm 6 is also fixedly installed by bolts. The sound direction of the sound alarm 6 is towards the road passage area of the road surface 1, so as to remind vehicles and pedestrians on the road. The laser sensor 5 is electrically connected to the sound alarm 6 and the automatic protection component 3 by wires, respectively, to realize the transmission of detection signals and the linkage control of protection actions.
[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the automatic protection component 3 is the core component for realizing physical protection of the level crossing. Its specific structure includes U-shaped fixing frames 300 that are pre-embedded and fixed inside the road surface 1 near both sides of the railway track 2. The U-shaped fixing frames 300 are made of welded steel with their openings facing downwards. The bottom is fixedly connected to the steel reinforcement skeleton inside the road surface 1 by pre-embedded bolts to ensure that the U-shaped fixing frames 300 are installed firmly. On the inner top of the two U-shaped fixing frames 300, through grooves 305 are provided along their length. The width of the through grooves 305 is adapted to the diameter of the subsequent connecting rope 302, so that the connecting rope 302 can pass through and slide.
[0025] like Figure 3 , Figure 4 As shown, a guardrail 301 is slidably fitted inside the two U-shaped fixing frames 300. The guardrail 301 adopts a metal railing structure, and its height meets the road protection standards. It can effectively block vehicles and pedestrians from crossing the intersection. In order to prevent the guardrail 301 from detaching from the U-shaped fixing frame 300 during the sliding process, a limit sleeve is fixedly installed at both ends of the two guardrails 301 by welding. The two limit sleeves on the same side are slidably fitted on the outside of the U-shaped fixing frame 300. The limit sleeves are tightly fitted with the outer wall of the U-shaped fixing frame 300 to ensure that the guardrail 301 can only slide up and down along the height direction of the U-shaped fixing frame 300.
[0026] like Figure 3 , Figure 4As shown, to drive the guardrail 301 to achieve lifting and lowering, a placement plate is fixedly installed on the top of the two U-shaped fixing frames 300 by welding. The inner side of the placement plate is connected to the inner and outer sides of the through groove 305. A servo motor 303 (Siemens V90) is fixedly installed on the top of the placement plate by a motor bracket. The output end of the servo motor 303 is rotatably mounted with a rope pulley 304 via a coupling. The axis of the rope pulley 304 is aligned with the length direction of the U-shaped fixing frame 300, and both sides of the rope pulley 304 are rotatably mounted with couplings to the U-shaped fixing frame 300. The top is fixedly connected to the fixed base, which provides limiting support for the rope wheel 304. On both sides of the outside of the two rope wheels 304, connecting ropes 302 are wound and connected. The connecting ropes 302 are made of high-strength steel wire ropes. One end of the connecting rope is fixedly wound on the rope wheel 304, and the other end passes through the through groove 305 at the top of the U-shaped fixed frame 300 and is fixedly connected to the top of the guardrail 301 by bolts. When the servo motor 303 drives the rope wheel 304 to rotate forward and backward, the guardrail 301 can be driven to slide up and down along the U-shaped fixed frame 300 through the connecting ropes 302, so as to realize the opening and closing of the crossing.
[0027] like Figure 3 , Figure 4 As shown, the energy-saving component 4 is used to provide clean energy for the entire device, reducing dependence on the external power grid. Its specific structure includes two U-shaped mounting brackets 403 fixedly installed on the top of the outer side of the U-shaped fixed bracket 300. A camera (not shown in the figure) can also be installed on the outside of the U-shaped mounting bracket 403 to realize real-time monitoring of the area around the crossing and prevent sudden accidents. The U-shaped mounting bracket 403 is fixedly connected to the top outer side of the U-shaped fixed bracket 300 by bolts and is perpendicular to the U-shaped fixed bracket 300. On the top of the inner side of the two U-shaped mounting brackets 403, a U-shaped mounting plate 402 is fixedly installed by welding. A storage battery 401 is fixedly installed on the inner bottom of the U-shaped mounting plate 402 by bolts. The storage battery 401 is a high-capacity lithium battery used to store electrical energy.
[0028] like Figure 3 , Figure 4 As shown, photovoltaic panels 400 are fixed to the top of the two U-shaped mounting brackets 403 by threads. The installation angle of the photovoltaic panels 400 is adjusted according to the sunshine conditions in the area where the crossing is located to maximize the absorption of solar energy. Both photovoltaic panels 400 are electrically connected to the storage battery 401 through wires. After the photovoltaic panels 400 convert the absorbed solar energy into electrical energy, it is transmitted to the storage battery 401 through wires for storage, so as to power the various electrical components of the device.
[0029] like Figure 3 , Figure 4As shown, to achieve the level crossing approach monitoring and alarm function, audible alarms 6 are bolted to the two U-shaped mounting brackets 403 on opposite sides of their bottoms. The volume of the audible alarms 6 can be adjusted according to the surrounding environment of the level crossing to ensure that they can be clearly heard even in noisy environments. On the opposite sides of the two U-shaped mounting brackets 403, laser sensors 5 are fixedly mounted with brackets. The detection range of the laser sensors 5 covers a certain distance in the direction of the railway track 2, which can detect trains approaching the level crossing in advance. The laser sensors 5 are electrically connected to the audible alarms 6 and the servo motor 303 through wires. At the same time, the servo motor 303, the laser sensors 5 and the audible alarms 6 are all electrically connected to the battery 401 through wires. The battery 401 provides a stable DC power supply for the above-mentioned electrical components.
[0030] It should be noted that, when this automatic safety protection device for railway crossing approach operations is in use, the laser sensor 5 will immediately send an electrical signal to the audible alarm 6 and the servo motor 303 when it detects a train approaching the crossing. Upon receiving the signal, the audible alarm 6 will immediately sound an alarm to remind vehicles and pedestrians on the road surface 1 to stop and stay away from the crossing. Upon receiving the signal, the servo motor 303 will drive the rope wheel 304 to rotate, which will drive the guardrail 301 to slide down along the U-shaped fixing frame 300 through the connecting rope 302 until the guardrail 301 is lowered to the lowest position, completely blocking the passage between the road surface 1 and the railway track 2, and preventing vehicles and pedestrians from crossing.
[0031] Once the train has completely passed the level crossing, the laser sensor 5 can no longer detect the train signal and will send a stop signal to the servo motor 303 and the audible alarm 6. The audible alarm 6 will stop emitting sound, and the servo motor 303 will rotate in the opposite direction, driving the guardrail 301 to slide upward along the U-shaped fixing frame 300 through the connecting rope 302 until the guardrail 301 rises to the highest position, and the road surface 1 will be reopened to traffic, completing one level crossing protection work cycle.
[0032] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. An automatic safety protection device for approaching railway crossings, comprising a road surface (1), characterized in that, A railway track (2) is built on the inner side of the road surface (1). Automatic protection components (3) are pre-embedded on both sides of the top of the road surface (1) near the railway track (2). An energy-saving component (4) is fixedly installed on the top of the automatic protection component (3). The energy-saving component (4) is electrically connected to the automatic protection component (3) through a wire. A laser sensor (5) is fixedly installed on one side of the energy-saving component (4). A sound alarm (6) is fixedly installed on the other side inside the energy-saving component (4). The laser sensor (5) is electrically connected to the sound alarm (6) and the automatic protection component (3) through a wire.
2. The automatic safety protection device for approaching railway crossings according to claim 1, characterized in that: The automatic protection component (3) includes U-shaped fixing frames (300) pre-embedded and fixed inside the road surface (1) near both sides of the railway track (2). The inner top of both U-shaped fixing frames (300) is provided with through grooves (305), and the inner sides of both U-shaped fixing frames (300) are slidably fitted with guardrails (301).
3. The automatic safety protection device for approaching railway crossings according to claim 2, characterized in that: A servo motor (303) is fixedly installed on the top of each of the two U-shaped fixing frames (300). A rope wheel (304) is rotatably installed on the output end of each of the two servo motors (303). A connecting rope (302) that is connected to the top of the guardrail (301) through a through groove (305) is wound around both sides of the two rope wheels (304).
4. The automatic safety protection device for approaching railway crossings according to claim 3, characterized in that: The energy-saving component (4) includes two U-shaped mounting brackets (403) fixedly installed on the top of the outer side of the U-shaped mounting bracket (300). A U-shaped mounting plate (402) is fixedly installed on the top of the inner side of each of the two U-shaped mounting brackets (403). A storage battery (401) is fixedly installed on the bottom of each of the two U-shaped mounting plates (402). A photovoltaic panel (400) is threadedly fixed to the top of each of the two U-shaped mounting brackets (403). Both photovoltaic panels (400) are electrically connected to the storage battery (401) through wires.
5. The automatic safety protection device for approaching railway crossings according to claim 4, characterized in that: The sound alarm (6) is fixedly installed on one side of the bottom of the U-shaped mounting bracket (403), and the laser sensor (5) is fixedly installed on the top of the other side of the U-shaped mounting bracket (403). The laser sensor (5) is electrically connected to the servo motor (303) through a wire. The servo motor (303), the laser sensor (5) and the sound alarm (6) are all electrically connected to the battery (401) through wires.
6. The automatic safety protection device for approaching railway crossings according to claim 3, characterized in that: Both ends of the two guardrails (301) are fixedly installed with limit sleeves, and the two limit sleeves on the same side slide onto the outside of the U-shaped fixing frame (300).