An alarm device for subway operation and maintenance track size measurement

By introducing a positioning module, a marker tube, and a laser ranging sensor into the alarm device, the problem that existing devices cannot effectively identify fault areas has been solved, enabling rapid fault location and marking, and improving the efficiency of subway track maintenance.

CN224581700UActive Publication Date: 2026-07-31CHINA RAILWAY FIRST GROUP CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY FIRST GROUP CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing alarm devices used for measuring track dimensions in subway maintenance cannot effectively identify fault areas, causing maintenance personnel to spend a lot of time checking each fault along long track lines.

Method used

An alarm device with a positioning module, a marking tube, an electric valve, and a laser ranging sensor was designed. The laser ranging sensor detects changes in track gauge, the positioning module marks the fault location, and the marking tube marks the track surface with pigment. Combined with an audible and visual alarm and a wireless communication system, the device can quickly locate and mark faults.

Benefits of technology

It enables rapid and accurate location and marking of faulty areas, improving maintenance efficiency and reducing the troubleshooting time for maintenance personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of subway track maintenance technology, and in particular to an alarm device for measuring the dimensions of subway tracks. It includes a housing, with a support rod riveted to the top left side of the housing. A connecting plate is fixedly fitted onto the surface of the support rod. A microcontroller is bolted to the right side of the connecting plate, and a wireless transceiver module and a positioning module are bolted to the front side of the connecting plate. This utility model, through the cooperation of the housing, positioning module, marking tube, electric valve, and filling tube, has the advantage of positioning and marking functions. When the track gauge changes, the second roller displaces inside the slide rail via a slider. The laser rangefinder detects the change in the distance of the second roller, at which point the positioning module locates the current position. Simultaneously, the microcontroller controls the electric valve to open, and pigment inside the housing drips onto the surface of the track through the marking tube, thus completing the positioning and marking operation.
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Description

Technical Field

[0001] This utility model relates to the field of subway track maintenance technology, specifically an alarm device for measuring the dimensions of subway tracks. Background Technology

[0002] Subway track maintenance is an important task to ensure the safe, stable and efficient operation of the subway track system. It covers a series of tasks such as inspection, maintenance, repair and management of the tracks and related facilities.

[0003] The existing alarm devices used for measuring track dimensions in subway maintenance lack marking functions and cannot effectively identify fault areas. As a result, maintenance personnel, after receiving alarm signals, have to spend a lot of time checking each section of the long track line one by one due to the lack of intuitive fault location markers, which greatly reduces maintenance efficiency.

[0004] To address the above technical issues, we have designed an alarm device for measuring track dimensions in subway maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide an alarm device for measuring track dimensions in subway operation and maintenance. It has the advantage of being able to locate and mark fault areas, which solves the problem that existing alarm devices cannot effectively mark fault areas during use, causing maintenance personnel to spend a lot of time checking each section of long track after receiving an alarm signal.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an alarm device for measuring the dimensions of subway tracks, comprising a housing, a support rod riveted to the left side of the top of the housing, a connecting plate fixedly sleeved on the surface of the support rod, a microcontroller bolted to the right side of the connecting plate, a wireless transceiver module and a positioning module bolted to the front side of the connecting plate, an audible and visual alarm bolted to the top of the support rod, a marking tube connected to the front and rear sides of the bottom right side of the housing, an electric valve fixedly installed on the surface of the marking tube, a filling pipe connected to the right side of the top of the housing, first rollers bolted to the rear sides of the bottom of the housing, slide rails bolted to the front sides of the bottom of the housing, a slider slidably connected to the inner cavity of the slide rail, a second roller bolted to the bottom of the slider, a detection plate bolted to the front sides of the bottom of the housing, a laser ranging sensor bolted to the front side of the detection plate, and a cleaning mechanism riveted to the front and rear sides of the left side of the housing.

[0007] Preferably, the cleaning mechanism includes a fixed plate, an electric push rod is bolted to the bottom of the fixed plate, a movable plate is bolted to the output end of the electric push rod, a movable rod is movably connected through the front and rear sides of the top of the movable plate, a bucket is bolted to the bottom end of the movable rod, and a spring is sleeved on the surface of the movable rod.

[0008] Preferably, a sealing plate is bolted to the left side of the front side of the housing, and a cap is fitted onto the surface of the filling pipe.

[0009] Preferably, a partition is fixedly connected to the inner cavity of the housing, and a battery pack is bolted to the left side of the bottom of the inner cavity of the housing.

[0010] Preferably, a liquid level window is embedded in the right side of the housing, and the bucket is located to the left of the first roller.

[0011] Preferably, the output terminal of the microcontroller is unidirectionally electrically connected to the audible and visual alarm and the electric valve, respectively, and the microcontroller is bidirectionally electrically connected to the positioning module, the wireless transceiver module and the laser ranging sensor, respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model has the advantage of positioning and marking function through the cooperation of housing, positioning module, marking tube, electric valve and filling tube. When the track gauge changes, the second roller is displaced inside the slide rail by the slider. The laser range sensor detects the change in distance of the second roller. At this time, the positioning module locates the current position. At the same time, the microcontroller controls the electric valve to open. The pigment inside the housing drips onto the surface of the track through the marking tube, thereby completing the positioning and marking operation.

[0014] 2. This utility model has the advantage of cleaning function through the cooperation of cleaning mechanism, fixed plate, electric push rod, movable plate, movable rod and bucket. During the movement of the first roller and the second roller, the electric push rod drives the movable plate and movable rod to move downward, so that the bottom of the bucket can contact the track, thereby cleaning the oil and impurities on the track surface and avoiding affecting the stability of the first roller and the second roller. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional bottom view of the structure of this utility model;

[0017] Figure 3 This is a three-dimensional sectional view of the shell structure of this utility model;

[0018] Figure 4This is a perspective view of the cleaning mechanism of this utility model.

[0019] In the diagram: 1. Housing; 2. Support rod; 3. Connecting plate; 4. Microcontroller; 5. Wireless transceiver module; 6. Positioning module; 7. Audible and visual alarm; 8. Marking tube; 9. Electric valve; 10. Filling tube; 11. First roller; 12. Slide rail; 13. Slider; 14. Second roller; 15. Detection plate; 16. Laser rangefinder sensor; 17. Cleaning mechanism; 18. Fixing plate; 19. Electric push rod; 20. Movable plate; 21. Movable rod; 22. Bucket; 23. Spring; 24. Partition plate; 25. Battery pack. Detailed Implementation

[0020] Please see Figures 1-4An alarm device for measuring track dimensions in subway maintenance includes a housing 1. A support rod 2 is riveted to the top left side of the housing 1. The support rod 2 supports and fixes components such as a connecting plate 3 and an audible and visual alarm 7, ensuring that these components function at appropriate heights and positions, guaranteeing the effective implementation of the audible and visual alarm function and the reasonable installation positions of each electronic module. The connecting plate 3 is fixedly sleeved on the surface of the support rod 2. A microcontroller 4 is bolted to the right side of the connecting plate 3. The microcontroller 4 can receive and process signals from components such as a laser rangefinder 16 and a positioning module 6, and control the operation of components such as the audible and visual alarm 7 and an electric valve 9 according to a preset program, realizing the automated control of the entire device. The logic operation is handled by an STM32F103RCT6 microcontroller, which boasts abundant peripheral resources and features low power consumption and high performance. A wireless transceiver module 5 and a positioning module 6 are bolted to the front of the connecting board 3. The positioning module 6 is used to locate the current position of the device. When the track gauge changes, it can accurately obtain fault location information and transmit it to the backend via the microcontroller 4 and the wireless transceiver module 5, providing maintenance personnel with precise fault location for quick troubleshooting and repair. An audible and visual alarm 7 is bolted to the top of the support rod 2. When the track gauge is abnormal, the audible and visual alarm 7, under the control of the microcontroller 4, emits sound and light alarm signals. To visually alert nearby personnel and facilitate timely detection of malfunctions, marking tubes 8 are connected to the front and rear sides of the bottom right side of housing 1. When the electric valve 9 is opened, the marking tubes 8 guide the pigment inside housing 1 to the track surface, marking the fault area. This allows maintenance personnel to quickly locate the fault, improving repair efficiency. An electric valve 9 is fixedly installed on the surface of the marking tubes 8. A filling tube 10 is connected to the right side of the top of housing 1, used to add the necessary pigment to the inside of housing 1 for easy replenishment. First rollers 11 are bolted to both sides of the rear bottom of housing 1, and first rollers 11 are bolted to both sides of the front bottom of housing 1. A slide rail 12 is bolted to the housing 1, and a slider 13 is slidably connected to the inner cavity of the slide rail 12. By setting the slider 13, the second roller 14 is driven to move within the slide rail 12, converting the change in track gauge into the displacement of the slider 13 and the second roller 14, so that the laser range sensor 16 can detect it. The bottom of the slider 13 is bolted to the second roller 14. Both sides of the front bottom of the housing 1 are bolted to the detection plates 15. The front side of the detection plates 15 is bolted to the laser range sensor 16. By setting the laser range sensor 16, the displacement distance of the second roller 14 within the slide rail 12 is detected, thereby determining whether the track gauge has changed. Cleaning mechanisms 17 are riveted to the front and rear sides of the left side of the housing 1.

[0021] Please see Figure 1 and Figure 4The cleaning mechanism 17 includes a fixed plate 18. An electric push rod 19 is bolted to the bottom of the fixed plate 18. A movable plate 20 is bolted to the output end of the electric push rod 19. Movable rods 21 are movably connected to the front and rear sides of the top of the movable plate 20. A bucket 22 is bolted to the bottom end of the movable rod 21. By setting the bucket 22, when it comes into contact with the track surface, it can remove oil and impurities from the track surface, thus achieving the cleaning function, ensuring that the track surface is clean, and not affecting the movement of the rollers and the measurement of the device. A spring 23 is sleeved on the surface of the movable rod 21.

[0022] Please see Figure 1 A sealing plate is bolted to the left side of the front side of the housing 1, and a cap is fitted on the surface of the filling pipe 10.

[0023] Please see Figure 3 A partition 24 is fixedly connected to the inner cavity of the housing 1. A battery pack 25 is bolted to the left side of the bottom of the inner cavity of the housing 1. By setting the battery pack 25, power can be supplied to various electrical components of the device.

[0024] Please see Figure 1 A liquid level window is installed on the right side of the housing 1, and the bucket 22 is located to the left of the first roller 11.

[0025] Please see Figure 1 The output of the microcontroller 4 is unidirectionally connected to the audible and visual alarm 7 and the electric valve 9, respectively, and bidirectionally connected to the positioning module 6, the wireless transceiver module 5 and the laser rangefinder 16, respectively.

[0026] In use, the first roller 11 and the second roller 14 are placed on the surface of the track. Both the first roller 11 and the second roller 14 on the left are equipped with drive motors. When the drive motors operate, they rotate the first roller 11 and the second roller 14 on the left. The housing 1 then moves along the track surface. During this movement, the microcontroller 4 controls the electric push rod 19. The output end of the electric push rod 19 drives the movable plate 20 and the movable rod 21 downwards. Under the action of the spring 23, the bottom of the bucket 22 remains in contact with the track, thus cleaning oil and impurities from the track surface and preventing them from affecting the first roller 11 and the second roller 14. The stability of the second roller 14 during travel is ensured by the following: When the track gauge between the two tracks changes, the second roller 14 is displaced inside the slide rail 12 via the slider 13. The laser range sensor 16 detects the change in distance of the second roller 14. At this time, the positioning module 6 locates the current position and transmits the current position information to the background control center through the microcontroller 4 and the wireless transceiver module 5. Simultaneously, the microcontroller 4 controls the electric valve 9 to open, and the pigment inside the housing 1 drips onto the surface of the track through the marking tube 8, thereby completing the positioning and marking operation. The pigment used is water-soluble ink, which can be directly washed with water or quickly wiped off with a cloth dipped in a small amount of detergent.

[0027] In summary, this alarm device for measuring track dimensions in subway maintenance solves the problem that existing alarm devices cannot effectively identify fault areas during use, leading to maintenance personnel having to spend a lot of time checking each section of long track after receiving an alarm signal. This is achieved through the cooperation of the housing 1, positioning module 6, marking tube 8, electric valve 9, filling tube 10, cleaning mechanism 17, fixing plate 18, electric push rod 19, movable plate 20, movable rod 21, and bucket 22.

Claims

1. An alarm device for subway operation and maintenance track dimension measurement, comprising a shell (1), characterized in that: A support rod (2) is riveted to the left side of the top of the housing (1). A connecting plate (3) is fixedly fitted on the surface of the support rod (2). A microcontroller (4) is bolted to the right side of the connecting plate (3). A wireless transceiver module (5) and a positioning module (6) are bolted to the front side of the connecting plate (3). An audible and visual alarm (7) is bolted to the top of the support rod (2). Marking tubes (8) are connected to the front and rear sides of the bottom right side of the housing (1). An electric valve (9) is fixedly installed on the surface of the marking tube (8). A filling tube is connected to the right side of the top of the housing (1). 10) Both sides of the bottom rear side of the housing (1) are bolted with first rollers (11), both sides of the bottom front side of the housing (1) are bolted with slide rails (12), the inner cavity of the slide rails (12) is slidably connected with sliders (13), the bottom of the sliders (13) is bolted with second rollers (14), both sides of the bottom front side of the housing (1) are bolted with detection plates (15), the front side of the detection plates (15) is bolted with laser range sensors (16), and the front and rear sides of the left side of the housing (1) are riveted with cleaning mechanisms (17).

2. The alarm device for measuring the size of a subway track for operation and maintenance according to claim 1, characterized in that: The cleaning mechanism (17) includes a fixed plate (18), the bottom of which is connected to an electric push rod (19) by bolts, the output end of which is connected to a movable plate (20) by bolts, and a movable rod (21) is movably connected through the front and rear sides of the top of the movable plate (20), the bottom end of which is connected to a bucket (22) by bolts, and a spring (23) is sleeved on the surface of the movable rod (21).

3. The alarm device for measuring the size of a subway track for operation and maintenance according to claim 1, characterized in that: A sealing plate is bolted to the left side of the front side of the housing (1), and a cap is fitted on the surface of the filling pipe (10).

4. The alarm device for measuring the size of a subway track for operation and maintenance according to claim 1, characterized in that: A partition (24) is fixedly connected to the inner cavity of the housing (1), and a battery pack (25) is bolted to the left side of the bottom of the inner cavity of the housing (1).

5. The alarm device for measuring the size of a subway track for operation and maintenance according to claim 2, characterized in that: A liquid level window is embedded in the right side of the housing (1), and the bucket (22) is located to the left of the first roller (11).

6. The alarm device for measuring the size of a subway track for operation and maintenance according to claim 1, characterized in that: The output terminal of the microcontroller (4) is unidirectionally connected to the sound and light alarm (7) and the electric valve (9), respectively. The microcontroller (4) is bidirectionally connected to the positioning module (6), the wireless transceiver module (5) and the laser rangefinder (16), respectively.