Safety operation auxiliary system for railway maintenance operation

By installing a protective shell and protective components on the top of the cab of a railway maintenance vehicle, the problem of camera damage in rainy and snowy weather has been solved, achieving effective protection and efficient operation of the camera.

CN224178236UActive Publication Date: 2026-04-28SHANGHAI TONGTIE ELECTROMECHANICAL TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI TONGTIE ELECTROMECHANICAL TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing railway maintenance operation safety auxiliary system's external cameras are easily damaged by rain and snow, affecting the detection of foreign objects and shortening their service life, and lack an effective protective structure.

Method used

A protective shell is installed on the top of the cab of a railway maintenance vehicle, equipped with protective components including a flip-up top baffle and sealing strips, to protect the camera when it is not in use and to seal it against rain and snow when in use.

Benefits of technology

It effectively protects cameras from rain and snow corrosion, extends their service life, and ensures normal operation in rainy and snowy weather, thereby improving detection and monitoring efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safe operation auxiliary system for railway maintenance operation, which belongs to the related technical field of railway maintenance and comprises a welding seat fixedly connected to the top of a cab of a railway maintenance operation vehicle, a protective shell fixedly connected to the top slope of the welding seat, and an out-cabin camera arranged in the protective shell. An in-cabin camera is further installed in the railway maintenance operation vehicle, the out-cabin camera is used for detecting foreign matter on a railway, and the in-cabin camera is used for monitoring the expression and action state of a driver. According to the safe operation auxiliary system for the railway maintenance operation, when the safe operation auxiliary system for the railway maintenance operation is used and the camera outside the cabin is not used, the push-pull plate can be pulled to move backwards by starting the electric telescopic rod, and the push-pull plate is matched with the meshing effect of the inverted-L-shaped toothed plate and the arc-shaped toothed ring, so that the top baffle is turned over downwards through the pin shaft and covers the through groove; and meanwhile, the front side baffle plate is attached to the front end of the protective shell, so that the out-cabin camera can be protected in the protective shell when not in use.
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Description

Technical Field

[0001] This utility model belongs to the technical field of railway maintenance, specifically relating to a railway maintenance operation safety auxiliary system. Background Technology

[0002] The working principle of the railway maintenance operation safety auxiliary system is based on advanced image recognition and real-time monitoring technology, aiming to improve the safety and efficiency of railway maintenance operations.

[0003] Existing railway maintenance safety operation auxiliary systems have the following drawbacks during use:

[0004] The external cameras on railway maintenance vehicles are typically left exposed on top of the cab, whether in use or not. This exposes them to rain and snow, which can affect their ability to detect foreign objects on the railway. Furthermore, prolonged exposure to rain and snow when not in use significantly reduces their lifespan. The lack of external protection for both in-use and out-of-use conditions necessitates a safety auxiliary system for railway maintenance operations. Utility Model Content

[0005] The purpose of this utility model is to provide a safety operation assistance system for railway maintenance operations to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a railway maintenance operation safety auxiliary system, including a welding seat fixed to the top of the driver's cab of a railway maintenance vehicle, a protective shell fixed to the top inclined surface of the welding seat, an external camera installed inside the protective shell, and an internal camera installed inside the railway maintenance vehicle. The external camera is used to detect foreign objects on the railway, and the internal camera is used to monitor the driver's expression and movement. A protective component is connected between the rear end of the internal camera and the protective shell.

[0007] Preferably, the protective component includes a through slot at the top of the external camera and a top baffle rotatably connected to the top of the protective shell at the through slot. A front baffle is fixed to the front end of the top baffle, and two symmetrically arranged side baffles are fixed to the bottom end of the top baffle. The opposite sides of the two side baffles are movably attached to the inner wall of the protective shell.

[0008] Preferably, a pin is fixed to one end of the top baffle away from the front baffle, and both ends of the pin are rotatably connected to the support blocks. Both support blocks are fixed to the outside of the protective shell. A sealing strip is also provided on the outside of the pin and fixed to the top of the protective shell. The sealing strip is used to seal the gap between the pin and the top of the protective shell.

[0009] Preferably, the top baffle has an inverted convex cross-section, the side baffle has a vertical cross-section that is one-sixth the size of a circular plate, and the cross-section of the top baffle is smaller than that of the front baffle.

[0010] Preferably, two symmetrically arranged arc-shaped toothed rings are provided between the two side baffles and fixed to the bottom end of the top baffle, and the bottom of the two arc-shaped toothed rings are engaged with inverted L-shaped toothed plates.

[0011] Preferably, the bottom ends of the two inverted L-shaped toothed plates are fixed to the top end of the same push-pull plate, the front end of the push-pull plate is fixed to the rear end of the external camera, the rear end of the push-pull plate is fixed to the telescopic end of the electric telescopic rod, and the rear end of the electric telescopic rod is fixed to the inner wall of the protective shell.

[0012] Compared with the prior art, the railway maintenance operation safety auxiliary system provided by this utility model includes at least the following:

[0013] Beneficial effects:

[0014] In this utility model, when using the railway maintenance operation safety auxiliary system, when the external camera is not in use, the push-pull plate can be moved backward by activating the electric telescopic rod. Combined with the engagement of the inverted L-shaped toothed plate and the arc-shaped toothed ring, the top baffle flips downward through the pin shaft and covers the through slot. Simultaneously, the front baffle adheres to the front end of the protective shell. This protects the external camera within the protective shell when not in use, preventing it from being exposed to rain and snow for extended periods, thus significantly reducing its lifespan. Furthermore, the sealing strips at the pin shafts connecting the top baffle, front baffle, and two side baffles during use prevent rain and snow from easily entering the protective shell from multiple directions, effectively ensuring the external camera can operate efficiently even under rain and snow conditions. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the planar structure of each component in the protective assembly of this utility model after unfolding from the side.

[0017] Figure 3This is a three-dimensional structural diagram of each component in the protective assembly of this utility model, viewed from below.

[0018] In the diagram: 1. Welding seat; 12. Protective shell; 13. External camera; 2. Protective components; 21. Through slot; 22. Pin; 221. Support block; 23. Top baffle; 24. Front baffle; 25. Side baffle; 26. Sealing strip; 27. Arc-shaped toothed ring; 28. Inverted L-shaped toothed plate; 29. ​​Push-pull plate; 210. Electric telescopic rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] To make the objectives, technical solutions, and advantages of the present utility model embodiments clearer, the technical solutions of the present utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] Example

[0023] The external camera 13 is generally left open on the top of the cab of the railway maintenance vehicle when it is in use or not. This means that the external camera 13 will be exposed to rain and snow in rainy and snowy weather, which can affect the detection of foreign objects on the railway. Secondly, when it is not in use, being exposed to rain and snow for a long time will greatly reduce the service life of the external camera 13. Its exterior lacks a structure that can protect it whether it is in use or not.

[0024] For this purpose, please refer to Figure 1-3 This utility model provides a railway maintenance operation safety auxiliary system, including: a welding seat 1 fixedly attached to the top of the driver's cab of a railway maintenance vehicle; a protective shell 12 fixedly attached to the top inclined surface of the welding seat 1; an external camera 13 installed inside the protective shell 12; and an internal camera installed inside the railway maintenance vehicle. The external camera 13 is used to detect foreign objects on the railway, and the internal camera is used to monitor the driver's expression and movement. A protective component 2 is connected between the rear end of the internal camera and the protective shell 12.

[0025] The railway maintenance operation safety auxiliary system mainly consists of the following core components:

[0026] Cameras: The system is equipped with both in-cabin and external cameras 13. The in-cabin camera is used to monitor the driver's status in the cab in real time, including facial expressions and movements; the external camera 13 is used to monitor the situation on the track in real time, detecting foreign objects or other potential hazards. The in-cabin camera is not shown in the attached diagram.

[0027] Industrial PC: As the central processing unit of the system, the industrial PC is responsible for receiving and processing image data from the camera. It runs specialized facial expression recognition algorithms and image analysis software to dynamically analyze the acquired images. The industrial PC, not shown in the attached diagram, is installed in the vehicle's driver's cabin.

[0028] Facial expression recognition algorithm: This algorithm analyzes the driver's facial expressions and movements captured by the in-cabin cameras to determine whether the driver is in a safe driving state. If driver fatigue, distraction, or other unsafe behavior is detected, the system will immediately trigger an alarm.

[0029] Alarm system: When the system detects unsafe driving behavior or foreign objects on the track through image recognition algorithms, it will alert the driver through sound, light or other forms of alarm to ensure that the driver can take appropriate measures in a timely manner.

[0030] Dynamic image analysis: The system analyzes track images captured by the external camera 13 in real time to identify foreign objects or other abnormalities on the track. Based on the analysis results, the system provides corresponding safe driving tips to the driver.

[0031] By enabling the components to work collaboratively using existing technologies, the system can effectively monitor driver status and track conditions, and issue timely safety alerts, thereby significantly improving the safety and operational efficiency of railway maintenance operations.

[0032] Further as Figure 1-3As shown, in order to provide adequate protection for the external camera 13 whether it is in use or not, a protective component 2 is provided, including a through slot 21 on the top of the external camera 13 and a through slot 21 on the top of the protective shell 12. A top baffle 23 is rotatably connected to the top of the protective shell 12 at the through slot 21. A front baffle 24 is fixed to the front end of the top baffle 23, and two symmetrically arranged side baffles 25 are fixed to the bottom end of the top baffle 23. The opposite sides of the two side baffles 25 are movably fitted against the inner wall of the protective shell 12. A pin 22 is fixed to the end of the top baffle 23 away from the front baffle 24. Both ends of the pin 22 are rotatably connected to support blocks 221. Both support blocks 221 are fixed to the outside of the protective shell 12. The outside of the pin 22 is also fixed to the protective shell. The sealing strip 26 at the top of the protective shell 12 is used to seal the gap between the pin 22 and the top of the protective shell 12. The top baffle 23 has an inverted convex cross-section, and the side baffle 25 has a vertical cross-section that is one-sixth the size of a circular plate. The cross-section of the top baffle 23 is smaller than that of the front baffle 24. Two symmetrically arranged arc-shaped toothed rings 27 are fixed to the bottom of the top baffle 23 between the two side baffles 25. The bottom of each arc-shaped toothed ring 27 is engaged with an inverted L-shaped toothed plate 28. The bottom of each inverted L-shaped toothed plate 28 is fixed to the top of the same push-pull plate 29. The front end of the push-pull plate 29 is fixed to the rear end of the external camera 13, and the rear end of the push-pull plate 29 is fixed to the telescopic end of the electric telescopic rod 210. The rear end of the electric telescopic rod 210 is fixed to the inner wall of the protective shell 12.

[0033] The sealing strip 26 prevents rain and snow from hitting the top of the protective shell 12 and entering the protective shell 12 through the gap between the pin 22 and the top of the protective shell 12. When the top baffle 23 is closed and parallel to the top of the protective shell 12, the end of the arc-shaped toothed ring 27 away from the top baffle 23 is attached to the inner top wall of the protective shell 12.

[0034] Example: When using this railway maintenance operation safety auxiliary system, when the external camera 13 is not in use, the push-pull plate 29 can be moved backward by activating the electric telescopic rod 210. With the engagement of the inverted L-shaped toothed plate 28 and the arc-shaped toothed ring 27, the top baffle 23 is flipped downward through the pin 22 and covers the through groove 21. At the same time, the front baffle 24 is attached to the front end of the protective shell 12. This allows the external camera 13 to be protected in the protective shell 12 when not in use, avoiding long-term exposure to rain and snow, which would greatly reduce its service life. Secondly, when in use, the sealing strip 26 at the pin 22 of the top baffle 23, the front baffle 24, and the two side baffles 25 prevents rain and snow from easily entering the protective shell 12 from multiple directions, effectively ensuring that the external camera 13 can work efficiently even under rain and snow conditions.

[0035] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by a person skilled in the art to which this utility model pertains. The words "comprising" or "including" and similar terms used in this utility model mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The words "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A railway maintenance operation safety auxiliary system, comprising a welding seat (1) fixedly attached to the top of the driver's cab of a railway maintenance vehicle, a protective shell (12) fixedly attached to the top inclined surface of the welding seat (1), an external camera (13) installed inside the protective shell (12), and an internal camera installed inside the railway maintenance vehicle. The external camera (13) is used to detect foreign objects on the railway, and the internal camera is used to monitor the driver's expression and movement. The system is characterized in that... A protective component (2) is connected between the rear end of the in-cabin camera and the protective shell (12).

2. The railway maintenance operation safety auxiliary system according to claim 1, characterized in that: The protective component (2) includes a through slot (21) on the top of the external camera (13) and opened on the top of the protective shell (12). A top baffle (23) is provided at the through slot (21) and rotatably connected to the top of the protective shell (12). A front baffle (24) is fixed to the front end of the top baffle (23). Two symmetrically arranged side baffles (25) are fixed to the bottom end of the top baffle (23). The two side baffles (25) are movably attached to the inner wall of the protective shell (12) on opposite sides.

3. The railway maintenance operation safety auxiliary system according to claim 2, characterized in that: A pin (22) is fixedly connected to one end of the top baffle (23) away from the front baffle (24). Both ends of the pin (22) are rotatably connected to the support block (221). Both support blocks (221) are fixed to the outside of the protective shell (12). A sealing strip (26) is also provided on the outside of the pin (22) and fixed to the top of the protective shell (12). The sealing strip (26) is used to seal the gap between the pin (22) and the top of the protective shell (12).

4. The railway maintenance operation safety auxiliary system according to claim 2, characterized in that: The top baffle (23) has an inverted convex cross section, and the side baffle (25) has a vertical cross section that is one-sixth the size of a circular plate. The cross section of the top baffle (23) is smaller than that of the front baffle (24).

5. The railway maintenance operation safety auxiliary system according to claim 2, characterized in that: Between the two side baffles (25), there are two symmetrically arranged arc-shaped toothed rings (27) fixed to the bottom end of the top baffle (23), and the bottom of the two arc-shaped toothed rings (27) are meshed with inverted L-shaped toothed plates (28).

6. The railway maintenance operation safety auxiliary system according to claim 5, characterized in that: The bottom ends of the two inverted L-shaped toothed plates (28) are fixed to the top of the same push-pull plate (29). The front end of the push-pull plate (29) is fixed to the rear end of the external camera (13). The rear end of the push-pull plate (29) is fixed to the telescopic end of the electric telescopic rod (210). The rear end of the electric telescopic rod (210) is fixed to the inner wall of the protective shell (12).