Lightning protection device of railway signal equipment

Abstract

The invention relates to the technical field of lightning protection of railway signal equipment, and discloses a lightning protection device of railway signal equipment, which comprises signal equipment, a lightning protection component and a protection switch connected between the signal equipment and the lightning protection component, the lightning protection assembly comprises a lightning protection device, a self-checking device, a controller, a self-checking signal receiver and a triggering mechanism; the controller is electrically connected with the self-checking device, the self-checking signal receiver, the trigger mechanism and the protection switch, the lightning protection device is electrically connected with the self-checking device and the self-checking signal receiver, and the trigger mechanism is arranged at a place where a vehicle or a person passes. Whether the lightning protection device is available or not is conveniently judged, if the lightning protection device is not available, the controller gives an alarm and feeds back the alarm to the terminal, the reliability of the lightning protection device is guaranteed, frequent maintenance and manual inspection are avoided, and normal operation of the lightning protection device is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of lightning protection for railway signal equipment, in particular to a lightning protection device for railway signal equipment. Background Art

[0002] The railway lightning protection system is a system that, when lightning strikes, discharges lightning electromagnetic pulses inducing overvoltage and overcurrent, which are discharged through the station power supply system, communication signal transmission channel, grounding system and building direct lightning protection system. It requires reliable and effective protection of the station's power supply system, antenna system, signal acquisition and transmission system, program-controlled switching system, computer network system, machine room grounding system, etc., and complete, multi-level comprehensive protection in terms of interception, diversion, balancing, grounding, wiring, layout, etc.

[0003] The lightning protection devices of traditional railway signal equipment are not triggered for a long time, so it is impossible to know when they are damaged, and the reliability of the lightning protection devices cannot be guaranteed. Therefore, regular maintenance and inspection are required to ensure the normal operation of the lightning protection devices. Self-inspection operations are labor-intensive, time-consuming, and labor-intensive, and the operation is troublesome.

[0004] In order to solve the above problems, the present application proposes a lightning protection device for railway signal equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a lightning protection device for railway signal equipment to solve the problem in the prior art proposed in the above background technology that the lightning protection device is not triggered for a long time and needs regular maintenance and inspection, otherwise the normal operation of the lightning protection device cannot be guaranteed.

[0006] To achieve the above object, the present invention provides the following technical solutions: A lightning protection device for railway signal equipment, comprising a signal equipment, a lightning protection component and a protection switch connected therebetween;

[0007] The lightning protection assembly includes a lightning protection device, a self-test device, a controller, a self-test signal receiver and a trigger mechanism;

[0008] The controller is electrically connected to the self-checking device, the self-checking signal receiver, the trigger mechanism and the protection switch respectively; the lightning protection device is electrically connected to the self-checking device and the self-checking signal receiver respectively; the trigger mechanism is arranged at the place where the vehicle or the person passes by.

[0009] Optionally, the trigger mechanism includes a mounting seat, a reset assembly, an airbag tube, a contact assembly and a connecting assembly. A connecting assembly is fixedly arranged between the controller and the trigger mechanism, and the end of the connecting assembly away from the controller is connected to the contact assembly. The airbag tube has a first changing section and a second changing section, wherein the first changing section is in an expanded state when the trigger mechanism is not triggered, and is in a contracted state after being triggered; the second changing section is in a contracted state when the trigger mechanism is not triggered, and is in an expanded state after being triggered; the contact assembly is arranged on the inner side of the first changing section, and a mounting seat is connected to the outer side of the airbag tube, a reset assembly is installed in the mounting seat, and the second changing section is arranged in the reset assembly. The airbag tube triggers the contact assembly to connect to the controller by squeezing the gas in the first changing section to the second changing section, and the reset assembly discharges the gas in the second changing section into the first changing section when there is no squeezing force.

[0010] Optionally, the self-test device includes a transformer, a power supply and a control component connected in sequence, the control component is electrically connected to the controller, and the transformer is electrically connected to the lightning protection device.

[0011] Optionally, a connection groove is provided at one end of the mounting seat close to the controller and at the other end away from the controller. The connection groove runs through the two end surfaces of the mounting seat, the airbag tube is arranged on the inner side of the connection groove, and the inner circle of the airbag tube is fixedly connected to the inner wall of the mounting seat.

[0012] Optionally, the reset assembly includes a spring and a push block, a spring groove is opened on the inner side of the mounting seat, a spring is fixedly connected to the end of the inner wall of the spring groove away from the airbag tube, a push block is fixedly connected to the end of the spring close to the airbag tube, and the push block is fixedly connected to the outer ring of the airbag tube.

[0013] Optionally, the contact assembly includes a first trigger block, a second trigger block, a first connecting strip and a second connecting strip, and the inner wall of the end of the airbag tube away from the mounting seat is symmetrically fixedly connected with the first trigger block and the second trigger block, the end of the first trigger block close to the controller is fixedly connected with the first connecting strip, and the end of the second trigger block close to the controller is fixedly connected with the second connecting strip, and the outer side of the first connecting strip and the outer side of the second connecting strip are both fixedly connected to the inner wall of the airbag tube.

[0014] Optionally, the connecting assembly includes a first wire, a second wire and a sealing block, a wire is fixedly connected to one end of the first connecting strip near the controller, a second wire is fixedly connected to one end of the second connecting strip near the controller, a sealing block is fixedly provided at the intersection of the first wire, the second wire and the surface of the airbag tube, and the first wire and the second wire are both fixedly connected to the sealing block.

[0015] Optionally, the sealing block penetrates the surface of the airbag tube, and both the first wire and the second wire penetrate the surface of the airbag tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a lightning protection device, a self-test device, a self-test signal receiver and a trigger mechanism, which are converted into the voltage and current range required for self-test through a transformer, and then transmitted to the lightning protection device through a wire. The lightning protection device performs a lightning protection self-test operation, and the signal after the self-test of the lightning protection device is collected by the self-test signal receiver and fed back to the controller. After obtaining the self-test signal, the controller determines whether the lightning protection device is normally available. When the lightning protection device is self-testing, the protection switch is disconnected, and the signal equipment will not be interfered by the self-test, which facilitates the judgment of whether the lightning protection device is available. If the lightning protection device is unavailable, the controller will alarm and feed back to the terminal, thereby ensuring the reliability of the lightning protection device, avoiding the need for frequent maintenance and manual inspection, and ensuring the normal operation of the lightning protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a lightning protection device for railway signal equipment of the present invention;

[0019] Figure 2 A schematic diagram of the installation structure of a self-test device of a lightning protection device of a railway signaling device according to the present invention;

[0020] Figure 3 A schematic diagram of the installation structure of a trigger mechanism of a lightning protection device for railway signal equipment according to the present invention;

[0021] In the figure:

[0022] 1. Signal equipment;

[0023] 2. Lightning protection device;

[0024] 3. Self-checking device; 31. Power supply; 32. Transformer; 33. Control unit;

[0025] 4. Controller;

[0026] 5. Self-test signal receiver;

[0027] 6. trigger mechanism; 61. mounting seat; 62. reset assembly; 621. spring; 622. push block; 63. airbag tube; 64. contact assembly; 641. first trigger block; 642. second trigger block; 643. first connecting strip; 644. second connecting strip; 65. connecting assembly; 651. first wire; 652. second wire; 653. sealing block;

[0028] 8. Protective switch. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the existing technology, and the components used for circuit connection are all conventional models in the existing technology.

[0031] At the same time, in order to clearly express the connection relationship and working principle between the components and highlight the key points, the drawings in the specification are organized and drawn in the form of simple diagrams. One simple diagram can correspond to a variety of materials and actual external structural shapes.

[0032] See also Figure 1-Figure 3 The present invention provides a technical solution: a lightning protection device for railway signal equipment, comprising a signal equipment 1, a lightning protection component and a protection switch 8 connected therebetween. The lightning protection component comprises a lightning protection device 2, a self-test device 3, a controller 4, a self-test signal receiver 5 and a trigger mechanism 6, the controller 4 is electrically connected to the self-test device 3, the self-test signal receiver 5, the trigger mechanism 6 and the protection switch 8 respectively, the lightning protection device 2 is electrically connected to the self-test device 3 and the self-test signal receiver 5 respectively, and the trigger mechanism 6 is arranged at a place where a vehicle or a person passes by.

[0033] Furthermore, the trigger mechanism 6 includes a mounting seat 61, a reset assembly 62, an airbag tube 63, a contact assembly 64 and a connecting assembly 65. The connecting assembly 65 is fixedly arranged between the controller 4 and the trigger mechanism 6, and the end of the connecting assembly 65 away from the controller 4 is connected to the contact assembly 64. The airbag tube 63 has a first changing section and a second changing section, wherein the first changing section is in an expanded state when the trigger mechanism is not triggered, and is in a contracted state after being triggered; the second changing section is in a contracted state when the trigger mechanism is not triggered, and is in an expanded state after being triggered; the contact assembly 64 is arranged on the inner side of the first changing section, the outer side of the airbag tube 63 is connected to the mounting seat 61, the reset assembly 62 is installed in the mounting seat 61, the second changing section is arranged in the reset assembly 62, the airbag tube 63 squeezes the gas in the first changing section to the second changing section to trigger the contact assembly 64 to connect to the controller 4, and the reset assembly 62 discharges the gas in the second changing section into the first changing section when there is no squeezing force.

[0034] On the basis of the above-mentioned embodiments, in a preferred embodiment, the self-test device 3 includes a transformer 32, a power supply 31 and a control component 33 connected in sequence, the control component 33 is electrically connected to the controller 4, and the transformer 32 is electrically connected to the lightning protection device 2. When the self-test device 3 is running, the control component 33 controls the power supply 31 to send out a voltage and current for testing self-test, which is converted into a voltage and current range required for self-test through the transformer 32, and then transmitted to the lightning protection device 2 through a wire, and the lightning protection device 2 performs a lightning protection self-test operation, and the signal after the lightning protection device 2 self-test is collected by the self-test signal receiver 5 and fed back to the controller 4, and the controller 4 determines whether the lightning protection device 2 is normal and usable after obtaining the self-test signal.

[0035] It should be understood that: the self-test device 3 can also generate another self-test signal, and the self-test device 3 should correspond to the self-test signal receiver 5, such as an electromagnetic pulse signal, etc. The self-test device 3 generates an electromagnetic pulse and sends it to the lightning protection device 2. The self-test signal receiver 5 receives the strength of the electromagnetic pulse signal after passing through the lightning protection device 2 and feeds it back to the controller 4 for judging whether the lightning protection device 2 is available. If it is not available, the controller 4 will alarm and feed back to the terminal.

[0036] When the device is in use, the airbag tube 63 is sleeved on the outside of the threshold of the signal equipment placement room, or placed in a place where the staff must pass. When passing by, the staff will inevitably step on the airbag tube 63, or even on the railway sleeper. Then a retractable dial wheel can be installed on the train. When passing through the area, the dial wheel is extended and rolled over the upper surface of the airbag tube 63. When the contact component 64 is started, the controller 4 obtains a passage signal, and the controller 4 is triggered to control the self-test device 3 to run, and the controller 4 is triggered to control the protection switch 8 to be disconnected. The self-test device 3 runs, and the power supply 31 is controlled by the control component 33 to send out a voltage and current for testing the self-test, which is converted into the voltage and current range required for the self-test through the transformer 32, and then transmitted to the lightning protection device 2 through the wire. The lightning protection device 2 performs a lightning protection self-test operation, and the signal after the self-test of the lightning protection device 2 is collected by the self-test signal receiver 5 and fed back to the controller 4. After obtaining the self-test signal, the controller 4 determines whether the lightning protection device 2 is normal and available, and the protection switch 8 is disconnected when the lightning protection device 2 self-tests, and the signal device 1 will not be interfered by the self-test.

[0037] On the basis of the above embodiments, in a preferred embodiment, a connection groove is provided at one end of the mounting seat 61 close to the controller and at one end away from the controller, and the connection groove runs through the surfaces of both ends of the mounting seat 61. The airbag tube 63 is arranged inside the connection groove, and the inner circle of the airbag tube 63 is fixedly connected to the inner wall of the mounting seat 61. Further, the reset assembly 62 includes a spring 621 and a push block 622. An elastic groove is provided inside the mounting seat 61, and the spring 621 is fixedly connected to the end of the inner wall of the elastic groove away from the airbag tube 63, and the push block 622 is fixedly connected to the end of the spring 621 close to the airbag tube 63, and the push block 622 is fixedly connected to the outer circle of the airbag tube 63.

[0038] On the basis of the above embodiment, in a preferred embodiment, the contact assembly 64 includes a first trigger block 641, a second trigger block 642, a first connecting strip 643 and a second connecting strip 644, and the inner wall of the end of the airbag tube 63 away from the mounting seat 61 is symmetrically fixedly connected with the first trigger block 641 and the second trigger block 642, the end of the first trigger block 641 close to the controller 4 is fixedly connected with the first connecting strip 643, and the end of the second trigger block 642 close to the controller 4 is fixedly connected with the second connecting strip 644, and the outer side of the first connecting strip 643 and the outer side of the second connecting strip 644 are both fixedly connected to the inner wall of the airbag tube 63. The connection assembly 65 includes a first wire 651, a second wire 652 and a sealing block 653. The wire 651 is fixedly connected to one end of the first connection strip 643 close to the controller 4, and the second wire 652 is fixedly connected to one end of the second connection strip 644 close to the controller 4. A sealing block 653 is fixedly arranged at the intersection of the first wire 651, the second wire 652 and the surface of the airbag tube 63, and the first wire 651 and the second wire 652 are both fixedly connected to the sealing block 653. The sealing block 653 penetrates the surface of the airbag tube 63, and the first wire 651 and the second wire 652 penetrate the surface of the airbag tube 63.

[0039] The airbag tube 63 is sleeved on the outside of the threshold of the signal equipment placement room, or placed in a place where the staff must pass. When the staff passes by, they will inevitably step on the airbag tube 63, or even on the railway sleeper. Then a retractable dial wheel can be installed on the train. When passing through the area, the dial wheel is extended to press and roll over the upper surface of the airbag tube 63. The airbag tube 63 is filled with inert gas and has a certain pressure. After the upper part of the airbag tube 63 is stepped on or pressed, the first trigger block 641 will contact the second trigger block 642, and the upper part of the airbag tube 63 will be compressed, so that the gas in the airbag tube 63 pushes the lower part of the airbag tube 63, so that the push block 622 Moving downward, the push block 622 pushes the spring 621 downward, thereby making the push block 622 move away from the inner side of the top end of the mounting seat 61, and the lower part of the airbag tube 63 is expanded. The controller 4 is connected to the first connecting strip 643 through the first wire 651, and the controller 4 is connected to the second connecting strip 644 through the second wire 652. When the first trigger block 641 and the second trigger block 642 are in contact, the controller 4 obtains a passage signal, and the sealing block 653 passes through the airbag tube 63 and is sealed and connected to the airbag tube 63. The first wire 651 and the second wire 652 are sealed with the sealing block 653, and the sealing block 653 facilitates the installation of the first wire 651 and the second wire 652.

[0040] Working principle:

[0041] When the device is in use, the airbag tube 63 is sleeved on the outer side of the threshold of the signal equipment placement room, or placed in a place where the staff must pass. When the staff passes by, they must step on the airbag tube 63, or even on the railway sleeper. Then a retractable dial wheel can be installed on the train. When passing through the area, the dial wheel is extended and rolled over the upper surface of the airbag tube 63. The airbag tube 63 is filled with inert gas and has a certain pressure. After the upper part of the airbag tube 63 is stepped on or pressed down, the first trigger block 641 The second trigger block 642 will contact the airbag tube 63, and the upper part of the airbag tube 63 will be compressed, so that the gas in the airbag tube 63 pushes the lower part of the airbag tube 63, so that the push block 622 moves downward, and the push block 622 pushes the spring 621 downward, so that the push block 622 is away from the inner side of the top of the mounting seat 61, and the lower part of the airbag tube 63 is expanded. The controller 4 is connected to the first connecting strip 643 through the first wire 651, and the controller 4 is connected to the second connecting strip 644 through the second wire 652. When the first trigger block 641 and the second trigger block 622 are in contact with the second connecting strip 643, the controller 4 is connected to the second connecting strip 644 through the second wire 652. After block 642 contacts, controller 4 obtains a path signal, controller 4 is triggered to control self-test device 3 to run, and controller 4 is triggered to control protection switch 8 to disconnect, self-test device 3 runs, and power supply 31 is controlled by control component 33 to send out voltage and current for self-test, which is converted into the voltage and current range required for self-test through transformer 32, and then transmitted to lightning protection device 2 through wire, lightning protection device 2 performs lightning protection self-test operation, self-test signal receiver 5 collects the signal of lightning protection device 2 after self-test and feeds it back to controller 4, controller 4 determines whether lightning protection device 2 is normally available after obtaining the self-test signal, and protection switch 8 is disconnected when lightning protection device 2 self-tests, signal device 1 will not be interfered by self-test, when not in use, the upper part of airbag tube 63 is not compressed, push block 622 pushes spring 621 to reset and press the air at the lower part of airbag tube 63 into the upper part of airbag tube 63, so that the first trigger block 641 can be separated from the second trigger block 642, which is convenient for judging whether lightning protection device 2 is available, and if lightning protection device 2 is not available, controller 4 alarms and feeds back to the terminal.

Claims

1. A lightning protection device for railway signal equipment, characterized in that: It comprises a signal device (1), a lightning protection component and a protection switch (8) connected therebetween; The lightning protection component comprises a lightning protection device (2), a self-test device (3), a controller (4), a self-test signal receiver (5) and a trigger mechanism (6); The controller (4) is electrically connected to the self-test device (3), the self-test signal receiver (5), the trigger mechanism (6) and the protection switch (8) respectively; the lightning protection device (2) is electrically connected to the self-test device (3) and the self-test signal receiver (5) respectively; and the trigger mechanism (6) is arranged at a place where a vehicle or a person passes by.

2. A lightning protection device for railway signal equipment according to claim 1, characterized in that: The trigger mechanism (6) comprises a mounting seat (61), a reset assembly (62), an airbag tube (63), a contact assembly (64) and a connection assembly (65); a connection assembly (65) is fixedly arranged between the controller (4) and the trigger mechanism (6); an end of the connection assembly (65) away from the controller (4) is connected to the contact assembly (64); the airbag tube (63) comprises a first change section and a second change section, wherein the first change section is in an expanded state when the trigger mechanism is not triggered, and is in a contracted state after being triggered; and the second change section is in a contracted state when the trigger mechanism is not triggered, and is in an expanded state after being triggered; The contact component (64) is arranged on the inner side of the first changing section, the outer side of the airbag tube (63) is connected to the mounting seat (61), a reset component (62) is installed in the mounting seat (61), the second changing section is arranged in the reset component (62), the airbag tube (63) squeezes the gas in the first changing section to the second changing section, thereby triggering the contact component (64) to connect to the controller (4), and the reset component (62) discharges the gas in the second changing section into the first changing section when there is no squeezing force.

3. A lightning protection device for railway signal equipment according to claim 1, characterized in that: The self-test device (3) comprises a transformer (32), a power supply (31) and a control component (33) which are connected in sequence; the control component (33) is electrically connected to the controller (4); and the transformer (32) is electrically connected to the lightning protection device (2).

4. A lightning protection device for railway signal equipment according to claim 1, characterized in that: The mounting seat (61) is provided with a connection groove at one end close to the controller and at another end away from the controller. The connection groove passes through the surfaces of both ends of the mounting seat (61). The airbag tube (63) is arranged inside the connection groove. The inner circle of the airbag tube (63) is fixedly connected to the inner wall of the mounting seat (61).

5. The lightning protection device for railway signal equipment according to claim 3, characterized in that: The reset assembly (62) comprises a spring (621) and a push block (622); a spring groove is provided on the inner side of the mounting seat (61); the spring (621) is fixedly connected to one end of the inner wall of the spring groove away from the airbag tube (63); the push block (622) is fixedly connected to one end of the spring (621) close to the airbag tube (63); and the push block (622) is fixedly connected to the outer ring of the airbag tube (63).

6. A lightning protection device for railway signal equipment according to claim 4, characterized in that: The contact assembly (64) comprises a first trigger block (641), a second trigger block (642), a first connecting strip (643) and a second connecting strip (644); the inner side wall of one end of the airbag tube (63) away from the mounting seat (61) is symmetrically fixedly connected with the first trigger block (641) and the second trigger block (642); the end of the first trigger block (641) close to the controller (4) is fixedly connected with the first connecting strip (643); the end of the second trigger block (642) close to the controller (4) is fixedly connected with the second connecting strip (644); and the outer sides of the first connecting strip (643) and the outer sides of the second connecting strip (644) are both fixedly connected to the inner side wall of the airbag tube (63).

7. A lightning protection device for railway signal equipment according to claim 5, characterized in that: The connection assembly (65) comprises a first wire (651), a second wire (652) and a sealing block (653); the wire (651) is fixedly connected to one end of the first connection strip (643) close to the controller (4); the second wire (652) is fixedly connected to one end of the second connection strip (644) close to the controller (4); a sealing block (653) is fixedly provided at the intersection of the first wire (651), the second wire (652) and the surface of the airbag tube (63); and the first wire (651) and the second wire (652) are both fixedly connected to the sealing block (653).

8. A lightning protection device for railway signal equipment according to claim 6, characterized in that: The sealing block (653) penetrates the surface of the airbag tube (63), and the first wire (651) and the second wire (652) both penetrate the surface of the airbag tube (63).

Images