Railway signal interlocking automatic switching positioning safety device

Abstract

The utility model provides an automatic switching and positioning safety device for railway signal interlocking. The automatic switching and positioning safety device comprises a signal interlocking motor driving control circuit, a driving motor and transmission assembly, a traction and pushing rotating rod assembly, a magnetic sensor and displacement assembly, a limit switch assembly and an emergency circuit. The utility model discloses a railway signal interlocking system, which is characterized in that a magnetic sensor arranged in front of a railway line annunciator or a turnout can automatically switch positions according to the current state of the annunciator, and when the annunciator or the turnout allows a locomotive to pass, the magnetic sensor is controlled to be positioned at a non-inductive position of a locomotive inductor, so that the locomotive can pass smoothly; when a signal machine or a turnout forbids the locomotive to pass through, the magnetic sensor is controlled to be located at the sensing position of the locomotive sensor, and if the locomotive does not stop running in time to cross the safety device at the moment, the locomotive sensor generates a voltage pulse signal through sensing and transmits the voltage pulse signal to an LKJ2000 train monitoring system to complete automatic ventilation braking of the locomotive. Running light running, turnout squeezing or side conflict railway driving accidents of locomotives are prevented.

Description

Technical Field

[0001] This utility model belongs to the field of railway signaling technology and relates to a railway signaling interlocking control safety device. Background Technology

[0002] During railway transportation operations, station duty officers typically use a computerized interlocking system to arrange routes, while locomotive crews and shunting operators confirm the open positions of switches and signal status to direct locomotive movement. However, in actual railway transportation operations, incidents of locomotives running red lights, squeezing through switches, or causing lateral collisions due to negligence by crews or shunting operators are frequent and represent a significant risk factor for railway transportation safety. Utility Model Content

[0003] The purpose of this invention is to address significant risk factors in current railway transportation operations by providing an automatic switching and positioning safety device for railway signal interlocking. This device automatically switches positions according to the current status of the signal and turnout. When the signal or turnout allows the locomotive train to pass, the magnetic sensor is controlled to be in the locomotive sensor inactive position, allowing the train to pass smoothly. When the signal or turnout prohibits the locomotive train from passing, the magnetic sensor is controlled to be in the locomotive sensor sensing position. If the locomotive does not stop in time and crosses the safety device, the locomotive sensor will receive the prohibition signal from the safety device and automatically release the air brake, preventing the locomotive from running a red light, squeezing through the turnout, or causing a side collision and resulting in railway traffic accidents.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] An automatic switching and positioning safety device for railway signal interlocking includes a signal interlocking motor drive control circuit 1, a magnetic sensor 6, and an emergency circuit 12. The input end of the signal interlocking motor drive control circuit 1 is connected to the railway signal lighting unit circuit, and the output end is connected to a drive motor 2. The output end of the drive motor 2 is connected to a right-angle worm gear reducer 3. The output shaft of the right-angle worm gear reducer 3 is connected to a coupling 4. The other end of the coupling 4 is connected to a traction-rotating rod assembly 5. A cylindrical vertical support rod 501 is provided at the lower part of the traction-rotating rod assembly 5. The vertical support rod 501 is equipped with a fixed bearing 502 for horizontal fixation. A horizontal rotating rod 503 is provided at the upper part of the traction-rotating rod assembly 5. One end of the horizontal rotating rod 503 is equipped with a traction positioning fixing column 504 and a traction rolling bearing 506, and the other end is equipped with a propulsion positioning fixing column 505 and a propulsion rolling bearing (507). The magnetic sensor 6 is integrated with linear guide rail sliders 701 and 702 and displacement blocks 801 and 802 via a connecting plate. The linear guide sliders 701 and 702 are respectively located on the linear guides 901 and (902). During the rotation of the traction-rotating rod assembly 5, the displacement blocks 801 and 802 are pulled or pushed by the traction rolling bearing 505 or the propulsion rolling bearing 507 to make forward or reverse horizontal displacement along the linear guides 901 and 902, so as to realize the positioning and reverse position conversion of the magnetic sensor 6. The emergency circuit 12 automatically intervenes when the signal interlocking equipment experiences a power outage or abnormal situation, outputs a reverse voltage to the drive motor 2, and transmits or locks the magnetic sensor 6 to the reverse position through the traction-rotating rod assembly 5.

[0006] Furthermore, the linear guide rail 901 is equipped with limit blocks 101 and 102, as well as a forward limit switch 111 and a reverse limit switch 112 at both ends, which can lock the magnetic sensor 6 at the set positioning and reverse positions.

[0007] Furthermore, the signal interlocking motor drive control circuit 1 mainly consists of 5 sets of AC220V 3-on 3-off relays and a motor drive power supply circuit, which are used for signal machine permission or prohibition signal status recognition and drive motor forward and reverse voltage conversion control.

[0008] Furthermore, the traction-rotating rod assembly 5 mainly consists of a vertical support rod 501, a fixed bearing 502, a horizontal rotating rod 503, a traction positioning fixing column 504 and a traction rolling bearing 506, a propulsion positioning fixing column 505 and a propulsion rolling bearing 507. The length of the horizontal rotating rod 503 is slightly shorter than the inner distance between the linear guide rails 901 and 902. The distance from the installation position of the traction positioning fixing column 504 to the center point of the horizontal rotating rod 503 is greater than the distance from the installation position of the propulsion positioning fixing column 505 to the center point of the horizontal rotating rod 503. The installation positions of the traction positioning fixing column 504 and the propulsion positioning fixing column 505 can be adjusted arbitrarily. The height of the traction positioning fixing column 504 and the propulsion positioning fixing column 505 is slightly lower than the height of the displacement blocks 801 and 802.

[0009] Furthermore, the magnetic sensor 6 is integrated with the linear guide sliders 701 and 702 and the displacement blocks 801 and 802 via a connecting plate. The magnetic sensor 6 is fixed at the upper center of the connecting plate, and the horizontal length of the connecting plate is equal to that of the magnetic sensor 6. The linear guide sliders 701 and 702 are fixed at the middle of the horizontal sides of the lower part of the connecting plate, and the displacement blocks 801 and 802 are fixed at the lower longitudinal sides of the connecting plate, with their outer edges aligned with the outer edges of the magnets. Their length is half the distance between the inner sides of the linear guides 901 and 902, and one end is located at the middle of the longitudinal direction.

[0010] Furthermore, the emergency circuit 12 mainly consists of a set of batteries and a set of double-opening and double-closing relays, which are used to provide reverse voltage to the drive motor 2 when a power outage occurs in the signal interlocking equipment.

[0011] Furthermore, the overall operating power of the signal interlocking motor drive control circuit 1 and the drive motor 2 is less than 3W.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model can eliminate safety hazards in railway transportation operations caused by locomotive drivers and shunting operators failing to confirm the status of signals or the open position of switches, resulting in locomotives "running red lights," causing them to squeeze onto switches or even collide with them, through technical means, thus ensuring railway traffic safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the circuit structure of this utility model;

[0016] Figure 3 This is an installation diagram of the present invention;

[0017] In the diagram, 1-signal interlocking motor drive control circuit, 2-drive motor, 3-right angle worm gear reducer, 4-coupling, 5-pull-rotation rod assembly, 6-magnetic sensor, 7-linear guide slider, 8-displacement stop, 9-linear guide, 10-limit block, 11-limit switch, 12-emergency circuit. Detailed Implementation

[0018] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0019] like Figure 1 As shown, a railway signal interlocking automatic switching positioning safety device includes a signal interlocking motor drive control circuit 1, a drive motor 2, a right-angle worm gear reducer 3, a coupling 4, a traction and rotation rod assembly 5, a magnetic sensor 6, a linear guide slider 7, a displacement stop 8, a linear guide 9, a limit block 10, a limit switch 11, and an emergency circuit 12. The input terminal of the signal interlocking motor drive control circuit 1 is connected to the railway signal lighting unit circuit, and the output terminal is connected to the drive motor 2. The output terminal of the drive motor 2 is connected to the right-angle worm gear reducer 3. The output shaft of the right-angle worm gear reducer 3 is connected to the coupling 4. The other end of the coupling 4 is connected to the traction rotating rod assembly 5. The lower part of the traction rotating rod assembly 5 is equipped with a cylindrical vertical support rod 501. The vertical support rod 501 is equipped with a fixed bearing 502 for horizontal fixation. The upper part of the traction rotating rod assembly 5 is equipped with a horizontal rotating rod 503. One end of the horizontal rotating rod 503 is equipped with a traction positioning fixed column 504 and a traction rolling bearing 506, and the other end is equipped with a propulsion positioning fixed column 505 and a propulsion rolling bearing 507. The magnetic sensor 6 is connected to the linear guide sliders 701, 702 and the displacement blocks 801, 802. The plate is installed as a whole. The linear guide sliders 701 and 702 are respectively located on the linear guides 901 and 902. During the rotation of the traction-rotating rod assembly 5, the displacement blocks 801 and 802 are pulled or pushed by the traction rolling bearing 506 or the propulsion rolling bearing 507 to make forward or reverse horizontal displacement along the linear guides 901 and 902, so as to realize the positioning and reverse position conversion of the magnetic sensor 6. The emergency circuit 12 automatically intervenes when the signal interlocking equipment experiences a power outage or abnormal situation, outputs reverse voltage to the drive motor 2, and transmits or locks the magnetic sensor 6 to the reverse position through the traction-rotating rod assembly 5. Limit blocks 101 and 102, as well as forward limit switch 111 and reverse limit switch 112 are installed at both ends of the linear guide 901, which can lock the magnetic sensor 6 at the set positioning and reverse position.

[0020] like Figure 2As shown, the signal interlocking motor drive control circuit 1 mainly consists of 5 sets of AC220V 3-on 3-off relays and a motor drive power supply circuit, which are used for signal controller permission or prohibition signal status recognition and drive motor forward and reverse voltage conversion control; the emergency circuit 12 mainly consists of a battery and a set of double-on double-off relays, which are used to provide reverse voltage to drive motor 2 when the signal interlocking equipment experiences a power outage fault.

[0021] like Figure 3 As shown, this utility model device should be installed in front of the railway signal and fastened to one side of the rail by fixing clips. The outer shell is made of non-metallic material.

[0022] This utility model device connects its electrical circuit to the signal lighting unit circuit terminals, automatically switching the position of the magnetic sensor according to changes in the signal display. When a permitting signal is present, the magnetic sensor is locked in the reverse position, ensuring uninterrupted locomotive passage. When a prohibiting signal is present, the magnetic sensor is locked in the fixed position. If the locomotive fails to stop in time and crosses the safety device, the locomotive sensor generates a voltage pulse signal, which is transmitted to the LKJ2000 train monitoring system to automatically release the locomotive's air brake, preventing the locomotive from running a red light, squeezing through a switch, or causing a side collision and resulting in a railway traffic accident. Specifically:

[0023] (1) When the signal changes from an allow signal (green, yellow, white) to a prohibit signal (red, blue), the signal interlock motor drive control circuit 1 outputs a positive control voltage to the drive motor 2, and drives the traction rotating rod assembly 5 to rotate clockwise through the right angle worm gear reducer 3 and coupling 4. When the horizontal rotating rod 503 rotates 180 degrees, the traction rolling bearing 506 will reach the inside of the displacement block 801 and move the magnetic sensor 6 to the positioning direction along the linear guide rails 901 and 902. When the horizontal rotating rod 503 rotates 360 degrees clockwise, the traction rolling bearing 506 enters the idle state, and the push rolling bearing 507 takes over the working state, pushing the magnetic sensor 6 from the outside of the displacement block 802 along the linear guide rails 901 and 902 to continue moving to the positioning direction. When the magnetic sensor 6 reaches the positioning position, the positive limit switch 111 will be triggered, the power supply line of the drive motor 2 will be disconnected, the traction rotating rod assembly 5 will stop running, and the magnetic sensor 6 will be locked in the positioning position.

[0024] (2) When the signal machine maintains the prohibition signal (red, blue) unchanged, the positive limit switch 111 remains unchanged, the power supply line of the drive motor 2 remains disconnected, and the magnetic sensor 6 remains locked in the positioning position.

[0025] (3) When the signal changes from a prohibition signal (red, blue) to a permission signal (green, yellow, white), the signal interlock motor drive control circuit 1 outputs a reverse control voltage to the drive motor 2, and drives the traction rotating rod assembly 5 to rotate counterclockwise through the right angle worm gear reducer 3 and the coupling 4. When the horizontal rotating rod 503 rotates 180 degrees, the traction rolling bearing 506 will reach the inside of the displacement block 802 and pull the magnetic sensor 6 to move in the opposite direction along the linear guide rails 901 and 902. When the horizontal rotating rod 503 rotates 360 degrees counterclockwise, the traction rolling bearing 506 enters the idle state, and the push rolling bearing 507 takes over the working state, pushing the magnetic sensor 6 from the outside of the displacement block 801 along the linear guide rails 901 and 902 to continue moving in the opposite direction. When the magnetic sensor 6 reaches the opposite position, the reverse limit switch 112 will be triggered, the power supply line of the drive motor 2 will be disconnected, the traction rotating rod assembly 5 will stop running, and the magnetic sensor 6 will be locked in the opposite position.

[0026] (4) When the signal maintains the allow signal (green, yellow, white) unchanged, the reverse limit switch 112 remains unchanged, the power supply line of the drive motor 2 remains disconnected, and the magnetic sensor 6 remains locked in the reverse position.

[0027] (5) When the signal interlocking equipment is working normally, the emergency circuit 12 relay controls the disconnection of the emergency battery power supply line, and the operation of the signal interlocking automatic switching positioning safety device is not affected in any way. When the signal interlocking equipment experiences a power outage or abnormal situation, the emergency circuit 12 relay controls the connection of the emergency battery power supply line, and outputs a reverse voltage to the drive motor 2. If the signal previously displayed an allow signal (green, yellow, white), the drive motor 2 power supply line is disconnected because the reverse limit switch 112 is in the open state at this time, and the magnetic sensor (6) remains locked in the reverse position. If the signal previously displayed a prohibition signal (red, blue), the drive motor 2 starts to rotate in the reverse direction and drives the rotating rod assembly 5 to rotate counterclockwise through the right angle worm gear reducer 3 and coupling 4. When the horizontal rotating rod 503 rotates 180 degrees, Afterwards, the traction rolling bearing 506 will reach the inner side of the displacement stop 802 and pull the magnetic sensor 6 to move in the reverse direction along the linear guide rails 901 and 902. When the horizontal rotating rod 503 rotates 360 degrees counterclockwise, the traction rolling bearing 506 enters the idle state, and the push rolling bearing 507 takes over and enters the working state. It pushes the magnetic sensor 6 from the outside of the displacement stop 801 along the linear guide rails 901 and 902 to continue moving in the reverse direction. When the magnetic sensor 6 reaches the reverse position, the reverse limit switch 112 will be triggered, the power supply line of the drive motor 2 will be disconnected, the traction rotating rod assembly 5 will stop running, and the magnetic sensor 6 will be locked in the reverse position.

Claims

1. A railway signal interlocking automatic switching and positioning safety device, characterized in that, The system includes a signal interlocking motor drive control circuit (1), a magnetic sensor (6), and an emergency circuit (12). The input end of the signal interlocking motor drive control circuit (1) is connected to the railway signal lighting unit circuit, and the output end is connected to the drive motor (2). The output end of the drive motor (2) is connected to the right angle worm gear reducer (3). The output shaft of the right angle worm gear reducer (3) is connected to the coupling (4). The other end of the coupling (4) is connected to the traction and rotating rod assembly (5). The lower part of the traction and rotating rod assembly (5) is provided with a cylindrical vertical support rod (501). The vertical support rod (501) is provided with a fixed bearing (502) for horizontal fixation. The upper part of the traction and rotating rod assembly (5) is provided with a horizontal rotating rod (503). One end of the horizontal rotating rod (503) is equipped with a traction positioning fixed column (504) and a traction rolling bearing (506), and the other end is equipped with a propulsion positioning fixed column (505) and a propulsion rolling bearing (507). The magnetic sensor (6) is integrated with the linear guide rail sliders (701) and (702) and the displacement blocks (801) and (802) via a connecting plate. The linear guide rail sliders (701) and (702) are respectively located on the linear guide rails (901) and (902). During the rotation of the traction and rotation rod assembly (5), the displacement blocks (801) and (802) are pulled or pushed by the traction rolling bearing (506) or the propulsion rolling bearing (507) to perform forward or reverse horizontal displacement along the linear guide rails (901) and (902), thereby realizing the positioning and reverse position conversion of the magnetic sensor (6). The emergency circuit (12) automatically intervenes when the signal interlocking equipment experiences a power outage or abnormal situation, outputs a reverse voltage to the drive motor (2), and drives or locks the magnetic sensor (6) to the reverse position through the traction and rotation rod assembly (5).

2. The railway signal interlocking automatic switching and positioning safety device according to claim 1, characterized in that, The linear guide (901) is equipped with limit blocks (101), (102) and forward limit switches (111) and reverse limit switches (112) at both ends, which can lock the magnetic sensor (6) at the set positioning and reverse positions.

3. The railway signal interlocking automatic switching and positioning safety device according to claim 1, characterized in that, The signal interlocking motor drive control circuit (1) mainly consists of 5 sets of AC220V 3-on 3-off relays and motor drive power supply circuit, used for signal machine permission or prohibition signal status recognition and drive motor forward and reverse voltage conversion control.

4. The railway signal interlocking automatic switching and positioning safety device according to claim 1, characterized in that, The traction and rotation rod assembly (5) mainly consists of a vertical support rod (501), a fixed bearing (502), a horizontal rotation rod (503), a traction positioning fixed column (504) and a traction rolling bearing (506), a propulsion positioning fixed column (505) and a propulsion rolling bearing (507). The length of the horizontal rotation rod (503) is slightly shorter than the inner distance between the linear guide rails (901) and (902). The distance between the installation position of the traction positioning fixed column (504) and the center point of the horizontal rotation rod (503) is greater than the distance between the installation position of the propulsion positioning fixed column (505) and the center point of the horizontal rotation rod (503). The installation positions of the traction positioning fixed column (504) and the propulsion positioning fixed column (505) can be adjusted arbitrarily. The height of the traction positioning fixed column (504) and the propulsion positioning fixed column (505) is slightly lower than the height of the displacement blocks (801) and (802).

5. A railway signal interlocking automatic switching and positioning safety device according to claim 1, characterized in that, The magnetic sensor (6) is integrated with the linear guide sliders (701) and (702) and the displacement blocks (801) and (802) via a connecting plate. The magnetic sensor (6) is fixed at the center of the upper part of the connecting plate. The horizontal length of the connecting plate is the same as that of the magnetic sensor (6). The linear guide sliders (701) and (702) are fixed at the middle of the horizontal sides of the lower part of the connecting plate. The displacement blocks (801) and (802) are fixed at the vertical sides of the lower part of the connecting plate. Their outer edges are aligned with the outer edges of the magnets. Their length is 1 / 2 of the distance between the inner sides of the linear guides (901) and (902). One end is located at the middle of the vertical direction.

6. The railway signal interlocking automatic switching and positioning safety device according to claim 1, characterized in that, The emergency circuit (12) mainly consists of a set of batteries and a set of double-opening and double-closing relays, which are used to provide reverse voltage to the drive motor (2) when the signal interlocking equipment experiences a power outage.

7. A railway signal interlocking automatic switching and positioning safety device according to claim 1, characterized in that, The overall power consumption of the signal interlocking motor drive control circuit (1) and the drive motor (2) is less than 3W.

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