Alarm box for railway intersection

Abstract

The utility model belongs to the technical field of railway intersection monitoring, and particularly relates to an alarm box for a railway intersection, which comprises an infrared sensor unit, an intelligent control unit, a sound-light alarm unit and a power supply unit, the infrared sensor unit is electrically connected with the power supply unit and the intelligent control unit, the intelligent control unit is electrically connected with the sound-light alarm unit and the power supply unit, the infrared sensor unit is installed on the installation stand column, a rack is fixedly arranged on the installation stand column, the installation stand column is slidably sleeved with a lifting assembly, and an angle adjusting assembly is installed on the lifting assembly. An infrared sensor unit is installed on the angle adjusting assembly. When the special line train passes through the intersection, real-time long-distance alarm can be realized; the installation height and angle of the infrared sensor unit are rapidly adjusted through the use of the lifting assembly and the angle adjusting assembly, and the installation and debugging difficulty of the infrared sensor unit is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of railway intersection monitoring technology, specifically relating to an alarm box for railway intersections. Background Technology

[0002] Special railway lines carry out the transportation of goods for specific enterprises or regions, and trains frequently pass through intersections. Due to their high speed and large size, trains colliding with vehicles or pedestrians on the road when passing through intersections can cause extremely serious casualties and property damage. Therefore, timely and effective warnings before trains pass through intersections are crucial. These warnings provide pedestrians and vehicles with sufficient time to take evasive action and avoid accidents.

[0003] Existing sensor-based alarm devices often perform poorly in complex environments. For example, some ultrasonic sensor-based alarm devices are easily affected by weather conditions (such as strong winds, heavy rain, and sandstorms), environmental noise, and reflections from surrounding objects, leading to frequent false alarms or missed alarms. This is especially true in complex environments like railway crossings, where there may be numerous vehicles, buildings, and dynamically changing weather conditions, all of which can severely impact the operation of ultrasonic sensors.

[0004] Furthermore, existing alarm devices present difficulties in installation and debugging. Due to the varying terrain, traffic flow, and surrounding environment at railway intersections, alarm devices need to be able to flexibly adjust their installation height and angle to adapt to different scenarios. However, the installation structure of traditional alarm devices is often relatively fixed, making quick and convenient adjustments difficult. During installation, significant manpower, resources, and time are required for debugging to ensure the alarm device accurately covers the intersection area and promptly issues an alarm signal. This not only increases installation costs and reduces work efficiency but also, to some extent, affects the timely deployment and maintenance of the alarm device. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide an alarm box for railway intersections, which solves the problems of poor performance of existing alarm devices in the complex environment of railway intersections, and the cumbersome operation of existing alarm devices in terms of installation and debugging.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an alarm box for railway intersections, comprising an infrared sensor unit, an intelligent control unit, an audible and visual alarm unit, and a power supply unit. The transmitting and receiving ends of the infrared sensor unit are installed on both sides of the railway intersection line. The infrared sensor unit is electrically connected to the power supply unit and the intelligent control unit. The intelligent control unit is electrically connected to the audible and visual alarm unit and the power supply unit. The infrared sensor unit is mounted on a mounting column. A rack is fixed on the mounting column and a lifting assembly is slidably fitted thereon. The lifting assembly includes a sliding sleeve. A protective shell is connected to one side of the sliding sleeve. A gear is rotatably installed in the protective shell. The gear meshes with the rack. An angle adjustment assembly is mounted on the protective shell. The angle adjustment assembly includes three ball joints. The ball joints of the first ball joint are connected to one end of an internally threaded pipe. The internally threaded pipe is threaded to a lead screw. The lead screw is connected to the ball joint of a second ball joint. The ball joint seat of the second ball joint is mounted on a mounting plate. The infrared sensor unit is mounted on the mounting plate.

[0007] The beneficial effects of this utility model are: it can realize real-time long-distance alarm when dedicated line trains pass through intersections; and it can quickly adjust the installation height and angle of the infrared sensor unit by using the lifting component and the angle adjustment component, thereby reducing the difficulty of installing and debugging the infrared sensor unit.

[0008] To ensure the monitoring accuracy and stability of the infrared sensor unit;

[0009] As a further improvement to the above technical solution: the infrared sensor unit is a beam active infrared intrusion detector.

[0010] The beneficial effects of this improvement are: firstly, it has high sensitivity and strong anti-interference ability, which effectively improves the accuracy and reliability of the alarm; secondly, when the train stops at the intersection for a long time, the infrared beam is blocked for a long time, and the automatic delay disconnection function of the finished infrared sensor unit can avoid the paralysis problem caused by long-term continuous alarm.

[0011] To ensure the stable operation of the intelligent control unit;

[0012] As a further improvement to the above technical solution: the intelligent control unit and the power supply unit are installed inside the control box, and the control box is installed on the mounting column.

[0013] The beneficial effects of this improvement are: the control box can protect and isolate the intelligent control unit and power supply unit installed outdoors, enabling the intelligent control unit and power supply unit to work stably.

[0014] To achieve a secure locking of the mounting height of the infrared sensor unit;

[0015] As a further improvement to the above technical solution: a worm gear is coaxially mounted on the shaft of the gear, the worm gear is meshed with a worm, and the worm is rotatably mounted on the protective shell.

[0016] The beneficial effects of this improvement are: the operator can drive the gear to rotate through the worm gear pair structure, so that the gear meshes with the rack to adjust the height of the lifting component, and the self-locking property of the worm gear pair ensures the stability of the installation height of the infrared sensor unit.

[0017] To reduce effort in rotating the worm gear;

[0018] As a further improvement to the above technical solution: the bottom end of the worm gear rotates through the protective shell and is connected to a handle.

[0019] The beneficial effect of this improvement is that the operator can easily rotate the worm gear by holding the handle.

[0020] To ensure the stability of the lifting assembly as it moves on the mounting column;

[0021] As a further improvement to the above technical solution: the sliding sleeve is mounted on the mounting column, and the side of the sliding sleeve is provided with a slot for sliding connection to the side of the rack.

[0022] The beneficial effect of this improvement is that the sliding sleeve moves stably in the axial direction of the mounting column under the limit of the rack, avoiding rotation that would affect the installation stability of the infrared sensor unit.

[0023] To make adjusting the angle of the mounting plate easier and more convenient;

[0024] As a further improvement to the above technical solution: a rotating handle is installed on the outer side of the internally threaded tube.

[0025] The beneficial effect of this improvement is that the operator can drive the internally threaded pipe to rotate with ease using the two-handle.

[0026] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the lifting component and the angle adjustment component in this utility model;

[0030] Figure 4 This is a cross-sectional view of the lifting component in this utility model;

[0031] In the diagram: 1. Infrared sensor unit; 2. Intelligent control unit; 3. Audible and visual alarm unit; 4. Power supply unit; 5. Mounting column; 6. Control box; 7. Rack; 8. Lifting assembly; 81. Sliding sleeve; 82. Protective shell; 83. Gear; 84. Worm gear; 85. Worm; 86. Rotary handle one; 9. Angle adjustment assembly; 91. Ball joint one; 92. Ball joint two; 93. Internally threaded tube; 94. Lead screw; 95. Rotary handle two; 96. Mounting plate. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0033] Example 1: As Figure 1As shown in Figure 4: A railway intersection alarm box includes an infrared sensor unit 1, an intelligent control unit 2, an audible and visual alarm unit 3, and a power supply unit 4. The transmitter and receiver of the infrared sensor unit 1 are installed on both sides of the railway intersection line. The infrared sensor unit 1 is electrically connected to the power supply unit 4 and the intelligent control unit 2. The intelligent control unit 2 is electrically connected to the audible and visual alarm unit 3 and the power supply unit 4. The infrared sensor unit 1 is mounted on a mounting column 5. A rack 7 is fixed on the mounting column 5, and a lifting assembly 8 is slidably fitted on it. The lifting assembly 8 includes a sliding sleeve 81. A protective shell 82 is connected to one side of the sliding sleeve 81. A gear 83 is rotatably installed in the protective shell 82. The gear 83 meshes with the rack 7. An angle adjustment assembly 9 is installed on the protective shell 82. The degree adjustment component 9 includes three ball joints 91, with the ball head of each ball joint 91 connected to one end of an internally threaded tube 93. The internally threaded tube 93 is threadedly connected to a lead screw 94, which is connected to the ball head of a second ball joint 92. The ball joint seat of the second ball joint 92 is mounted on a mounting plate 96, and an infrared sensor unit 1 is mounted on the mounting plate 96. This device provides a real-time, long-distance alarm for dedicated line trains passing through intersections and offers an effective solution for trains that stop at intersections for extended periods due to route issues. By combining a precise infrared detection unit with an intelligent control unit, this alarm device can accurately detect intruder trains, people, or animals in complex environments, while reducing false alarms or missed alarms caused by environmental factors, providing more reliable and efficient security protection on-site.The installation height and angle of the infrared sensor unit 1 can be quickly adjusted using the lifting assembly 8 and the angle adjustment assembly 9, reducing the difficulty of installation and debugging. The infrared sensor unit 1 is a beam-active infrared intrusion detector with high sensitivity and strong anti-interference ability, effectively improving the accuracy and reliability of the alarm. Furthermore, when the train remains stationary at an intersection for an extended period, the infrared beam is blocked for a long time. The automatic delay disconnection function of the finished infrared sensor unit 1 avoids the paralysis caused by prolonged continuous alarms. The intelligent control unit 2 and the power supply unit 4 are installed inside the control box 6, which is mounted on the mounting column 5. The control box 6 protects and isolates the intelligent control unit 2 and the power supply unit 4 installed outdoors, ensuring their stable operation. A worm gear 84 is coaxially mounted on the shaft of the gear 83, and the worm gear 84 meshes with and connects to... A worm gear 85 is rotatably mounted on the protective shell 82. The operator can drive the gear 83 to rotate via the worm gear pair structure, allowing the gear 83 to mesh with the rack 7 to adjust the height of the lifting assembly 8. The self-locking property of the worm gear pair ensures the stability of the installation height of the infrared sensor unit 1. The bottom end of the worm gear 85 rotatably passes through the protective shell 82 and is connected to a handle 86. The operator can easily rotate the worm gear 85 by holding the handle 86. A sliding sleeve 81 is slidably fitted onto the mounting column 5, and a slot is provided on the side of the sliding sleeve 81 to slide and connect to the side of the rack 7. The sliding sleeve 81 moves stably in the axial direction of the mounting column 5 under the limitation of the rack 7, preventing rotation that could affect the installation stability of the infrared sensor unit 1. A second handle 95 is mounted on the outside of the internally threaded tube 93, allowing the operator to easily rotate the internally threaded tube 93 via the second handle 95.

[0034] The working principle of this technical solution is as follows: The intelligent control unit 2 and the power supply unit 4 are integrated and installed in the control box 6. The control box 6 is installed on one of the mounting columns 5. One mounting column 5 is installed on one side of the railway line at the railway intersection, and the other mounting column 5 is installed on the other side of the railway line at the railway intersection. One audible and visual alarm unit 3 is installed at the intersection, and the other is installed in a guardhouse 200 meters away from the intersection. The units are connected by laying cables to ensure that the units can work together and achieve the expected performance indicators. Adjust the height of the infrared sensor unit 1. In specific operation, rotating the handle 86 drives the worm gear 85 to rotate. The worm gear 85 meshes with and drives the worm wheel 84 to rotate. When the worm wheel 84 rotates, it drives the worm wheel 85 to rotate. The shaft-mounted gear 83 rotates, which in turn drives the entire lifting assembly 8, the angle adjustment assembly 9 mounted on the lifting assembly 8, and the infrared sensor unit 1 to move up and down to a suitable monitoring height when the gear 83 meshes with the rack 7. This keeps the transmitting and receiving ends of the infrared sensor unit 1 mounted on the two mounting columns 5 at the same mounting height. To adjust the height of the infrared sensor unit 1, the handles 95 on the three internal threaded tubes 93 are rotated respectively, causing the internal threaded tubes 93 and the lead screw 94 to rotate relative to each other and generate a helical pair motion. This causes the angle of the mounting plate 96 to change, so that the optical axis of the transmitting end of the infrared sensor unit 1 and the receiving end of the infrared sensor unit 1 are aligned, ensuring the reliability of the monitoring by the infrared sensor unit 1.

[0035] When a target object, such as a human body, enters the preset monitoring area, the target object blocks the infrared rays of the infrared sensor unit 1. The signal at the receiving end of the infrared sensor unit 1 changes and is converted into an electrical signal for further processing, and then converted into an alarm output. After the intelligent control unit 2 captures the alarm signal transmitted from the infrared sensor unit 1, it immediately controls the audible and visual alarm unit 3 to sound an alarm, thus satisfying the functions of immediate alarm and delayed disconnection of audible and visual alarm.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A crossing warning box for a railway, characterized in that: The utility model provides an infrared sensor unit (1), intelligent control unit (2), audible and light alarm unit (3) and power unit (4), the emission end and receiving end of infrared sensor unit (1) are installed in railway intersection line both sides, infrared sensor unit (1) electric connection power unit (4) and intelligent control unit (2), intelligent control unit (2) electric connection audible and light alarm unit (3) and power unit (4), infrared sensor unit (1) is installed on mounting column (5), mounting column (5) is fixed with rack (7) and is slidably sleeved with lifting assembly (8), lifting assembly (8) includes slide sleeve (81), one side of slide sleeve (81) is connected with protective housing (82), protective housing (82) rotationally installs gear (83), gear (83) is connected with rack (7), angle adjusting assembly (9) is installed on protective housing (82), angle adjusting assembly (9) includes ball hinge one (91), the number of ball hinge one (91) is three and the ball head of ball hinge one (91) is connected one end of inner threaded tube (93), inner threaded tube (93) is threadedly connected with lead screw (94), lead screw (94) is connected with the ball head of ball hinge two (92), the ball hinge seat of ball hinge two (92) is installed on mounting plate (96), and infrared sensor unit (1) is installed on mounting plate (96).

2. The crossing warning box according to claim 1, wherein: The infrared sensor unit (1) is a beam active infrared intrusion detector.

3. The crossing warning box of claim 1 wherein: The intelligent control unit (2) and the power unit (4) are installed in the control box (6), and the control box (6) is installed on the mounting column (5).

4. The crossing warning box of claim 1 wherein: The shaft of the gear (83) is coaxially installed with a worm wheel (84), the worm wheel (84) is connected with a worm (85), and the worm (85) is rotatably installed on the protective housing (82).

5. A crossing warning box according to claim 4, wherein: The bottom end of the worm (85) is rotatably connected with a handle (86).

6. The crossing warning box of claim 1 wherein: The slide sleeve (81) is slidably sleeved on the mounting column (5), and the side of the slide sleeve (81) is slidably connected with the rack (7).

7. The crossing warning box of claim 1 wherein: The outer side of the inner threaded tube (93) is installed with a handle (95).

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