Axle counter for a subway signaling system

Abstract

The utility model provides a kind of axle counting equipment of subway signal system, including the mounting seat for being fixed with rail, sensor housing is provided on the mounting seat, sensor housing on the mounting seat is set in the inside of rail, axle counting sensor is provided in the sensor housing, cable connector is provided on the mounting seat, the cable connector is connected with axle counting sensor, the cable connector is cylindrical porous aviation plug, communication cable is connected on the cable connector by quick release assembly.The utility model is through the "insertion rotation double lock" mechanism of quick release assembly, specifically for insertion strip rotation slot limiting and elastic buckle vertical locking, realize double anti-falling, in combination with inverted T type buffer pad absorbs track vibration, significantly improve joint vibration resistance and anti-pulling capacity, while ensuring signal transmission stability, substantially improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of axle counting equipment technology, specifically an axle counting device for a subway signaling system. Background Technology

[0002] In modern subway systems, axle counting equipment is a commonly used device. It uses closed-loop sensors installed on the rails to monitor the number of train wheelsets passing by. After being detected by a microcomputer system located indoors and the gate, the wheelset count of the station is sent to the destination station using semi-automatic equipment. When the train arrives at the destination station, the destination station automatically opens the section when the received wheelset count is the same as that of the departure station.

[0003] The outdoor part of the axle counting equipment in the subway signaling system mainly consists of a magnetic head and an electronic receiver box. The magnetic head works by cutting the disturbance signal generated by the magnetic field of the receiving coil through the axle, and then transmits the signal to the axle counting equipment through the cable. However, due to the subway environment, the cable connectors of the axle counting equipment are very prone to falling off due to aging and vibration. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an axle counting device for a subway signaling system, which solves the existing technical problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an axle counting device for a subway signal system, including a mounting base, on which a sensor housing is provided, and the sensor housing on the mounting base is attached to the inner side of the rail;

[0006] The sensor housing contains an axle counting sensor, and the mounting base is provided with a cable connector. The cable connector is connected to the axle counting sensor and is a cylindrical multi-hole aviation plug. A communication cable is connected to the cable connector via a quick-release assembly.

[0007] The quick-release assembly includes a quick-release socket, which is fitted onto a cable connector. The inner side of the quick-release socket has several fixing holes. The cable connector has several elastic clips that mutually limit each other with the fixing holes. The cable connector has several inserts on its ring. The inner ring of the quick-release socket has several slots. The inserts are inserted into the slots. The ends of the slots have several fixing grooves.

[0008] Preferably, one side of the mounting base is fixed to the rail by a pair of threaded structures.

[0009] Preferably, after the insert is rotated at the end of the slot, it will be inserted into the fixing groove, and at the same time, the elastic buckle will be inserted into the fixing hole.

[0010] Preferably, the sensor housing and the mounting base are connected and limited by a buffer pad with an inverted T-shaped structure and fixed by a pair of fixing bolts.

[0011] Preferably, a status detection light is provided on the outside of the sensor housing, which is used to display the working status of the axis counting sensor.

[0012] Preferably, the insert is an oblong plate, and the slot extends through one side of the opening of the quick-release socket.

[0013] Preferably, the quick-release socket is a cylindrical plate, and the exterior of the quick-release socket is provided with polygonal operating blocks.

[0014] This utility model has the following beneficial effects: The axle counting device uses the "insert-rotate double lock" mechanism of the quick-release component, specifically the insertion bar rotation slot limit and the elastic buckle vertical lock, to achieve double anti-drop. Combined with the inverted T-shaped buffer pad to absorb track vibration, it significantly improves the vibration resistance and pull-out resistance of the joint. The multi-color status light provides real-time feedback on the working status. With the anti-misinsertion design, it greatly improves the operation and maintenance efficiency while ensuring the stability of signal transmission. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural diagram of the axle counting device of a subway signaling system according to the present invention.

[0016] Figure 2 This is a schematic diagram of the second blasting three-dimensional structure of the axle counting device of the subway signaling system described in this utility model.

[0017] Figure 3 This is a schematic diagram of the third blasting three-dimensional structure of the axle counting device of the subway signaling system described in this utility model.

[0018] Figure 4 This is a schematic diagram of the fourth blasting three-dimensional structure of the axle counting device of the subway signaling system described in this utility model.

[0019] In the diagram: 1. Mounting base; 2. Sensor housing; 3. Axis counting sensor; 4. Cable connector; 5. Quick-release assembly; 6. Communication cable; 7. Buffer pad; 8. Status indicator light; 9. Fixing bolt; 51. Quick-release socket; 52. Elastic clip; 53. Insert; 54. Slot; 55. Fixing groove; 56. Fixing hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] See Figure 1-4 This application discloses an axle counting device for a subway signal system, including a mounting base 1. One side of the mounting base 1 is reliably fixed to the rail by a pair of threaded structures. A sensor housing 2 is provided on the mounting base 1. The sensor housing 2 on the mounting base 1 is fitted to the inner side of the rail to ensure that the axle counting sensor 3 maintains a precise and constant gap with the rail.

[0022] A shaft counting sensor 3 is installed inside the sensor housing 2, and a cable connector 4 is installed on the mounting base 1. The cable connector 4 is connected to the shaft counting sensor 3. The cable connector 4 is a cylindrical multi-hole aviation plug. A communication cable 6 is connected to the cable connector 4 through a quick-release assembly 5. The quick-release assembly 5 is used to securely connect the components, effectively solving the problem of connector detachment caused by vibration.

[0023] Specifically, the quick-release assembly 5 includes a quick-release socket 51, which is fitted onto the cable connector 4. The inner side of the quick-release socket 51 is provided with several fixing holes 56. The cable connector 4 is provided with several elastic buckles 52, which mutually limit each other with the fixing holes 56. The cable connector 4 is provided with several inserts 53, and the inner ring of the quick-release socket 51 is provided with several slots 54. The inserts 53 are inserted into the slots 54, and the ends of the slots 54 are provided with several fixing grooves 55. When connecting, the inserts 53 are aligned and inserted into the slots 54, and then the quick-release socket 51 is rotated. The ends of the inserts 53 are then locked into the fixing grooves 55 to form circumferential limiting. At the same time, the elastic buckles 52 automatically spring into the fixing holes 56 to form vertical locking, achieving double locking and significantly improving vibration resistance and pull-out resistance.

[0024] After the insert 53 is inserted into the end of the slot 54 and rotated, the insert 53 will be locked into the fixing groove 55, and at the same time the elastic buckle 52 will be locked into the fixing hole 56. This "insert-rotate double lock" mechanism is easy to operate and the connection is firm and reliable.

[0025] The sensor housing 2 and the mounting base 1 are connected and limited by the inverted T-shaped buffer pad 7 and fixed by a pair of fixing bolts 9. The buffer pad 7 can effectively absorb the vibration energy transmitted by the track, reduce the impact on the sensor body and connection, and avoid vibration affecting the position of the cable connector 4. The fixing bolts 9 ensure the overall installation is stable.

[0026] The sensor housing 2 is equipped with a status detection light 8 on its exterior. The status detection light 8 is used to display the working status of the axis counting sensor 3. Multi-color LED lights are used to intuitively reflect the magnetic field signal strength and communication connection status, which facilitates rapid on-site diagnosis.

[0027] The insert 53 is a plate with an elongated oval structure. The slot 54 passes through one side of the opening of the quick-release socket 51. The elongated oval asymmetrical cross-section design can effectively prevent misinsertion and ensure the uniqueness and correctness of the assembly.

[0028] The quick-release socket 51 is a cylindrical plate with a polygonal operating block on its exterior. The polygonal design makes it easy to hold and apply rotational torque manually. The special surface treatment enhances friction, making disassembly and assembly operations more convenient and efficient.

[0029] The axle counter sensor is a core device used to detect when train wheels pass through specific points on the track. It detects the change in the magnetic field when the wheel passes by through electromagnetic induction: when the wheel passes over the sensor, it outputs a positive pulse (24V) and returns to 0V voltage when it moves away, thus detecting the status of the train wheel passing through. The signal is transmitted to the monitoring system through a communication connection.

[0030] In summary, this axle counting device achieves double anti-drop by using the "insert-rotate double-lock" mechanism of the quick-release component 5, specifically by limiting the rotation of the insert 53 in the slot and locking the elastic buckle 52 vertically. Combined with the inverted T-shaped buffer pad 7 to absorb track vibration, it significantly improves the vibration resistance and pull-out resistance of the joint. The multi-color status lights provide real-time feedback on the working status, and the anti-misinsertion design ensures signal transmission stability while greatly improving maintenance efficiency.

[0031] 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. An axle counting device for a subway signaling system, characterized in that, It includes a mounting base (1) for fixing to the rail, and a sensor housing (2) is provided on the mounting base (1). The sensor housing (2) on the mounting base (1) is attached to the inner side of the rail. The sensor housing (2) is provided with an axle counting sensor (3), and the mounting base (1) is provided with a cable connector (4). The cable connector (4) is connected to the axle counting sensor (3). The cable connector (4) is a cylindrical multi-hole aviation plug. The cable connector (4) is connected to a communication cable (6) through a quick-release assembly (5). The quick-release assembly (5) includes a quick-release socket (51), which is fitted onto the cable connector (4). The quick-release socket (51) has several fixing holes (56) on its inner side. The cable connector (4) has several elastic buckles (52), which limit each other with the fixing holes (56). The cable connector (4) has several inserts (53) on its ring. The quick-release socket (51) has several slots (54) on its inner ring. The inserts (53) are inserted into the slots (54). The ends of the slots (54) have several fixing grooves (55).

2. The axle counting device for a subway signaling system according to claim 1, characterized in that, One side of the mounting base (1) is fixed to the rail by a pair of threaded structures.

3. The axle counting device for a subway signaling system according to claim 1, characterized in that, After the insertion strip (53) is inserted into the slot (54) and rotated, the insertion strip (53) will be inserted into the fixing slot (55), and at the same time, the elastic buckle (52) will be inserted into the fixing hole (56).

4. The axle counting device for a subway signaling system according to claim 1, characterized in that, The sensor housing (2) and the mounting base (1) are connected and limited by a buffer pad (7) of an inverted T-shaped structure and fixed by a pair of fixing bolts (9).

5. The axle counting device for a subway signaling system according to claim 1, characterized in that, The sensor housing (2) is provided with a status detection light (8) on the outside, which is used to display the working status of the axis counting sensor (3).

6. The axle counting device for a subway signaling system according to claim 1, characterized in that, The insert (53) is a plate with an elongated oval structure, and the slot (54) passes through one side of the opening of the quick-release socket (51).

7. The axle counting device for a subway signaling system according to claim 1, characterized in that, The quick-release socket (51) is a cylindrical plate, and the quick-release socket (51) has polygonal operating blocks on its exterior.

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