Red light strip triggering auxiliary device of railway flaw detection car

Abstract

The utility model relates to the technical field of railway flaw detection equipment, in particular to a railway flaw detection car red light strip triggering auxiliary device which comprises two first wires electrically connected with two sides of a track respectively, an alternating current ampere meter is connected in series between the two first wires, and the alternating current ampere meter is electrically connected with an ampere meter contact switch. The auxiliary device further comprises an alarm, a power supply and a third wire. The ammeter contact switch, the alarm and the power supply are connected in series through the third wire to form a circuit for controlling the contacts to be opened or closed. According to the utility model, the current change caused by tiny defects on the track can be accurately detected, the ampere meter contact switch is adopted as a trigger element, once abnormal change is detected, the current alarm circuit can be immediately triggered, the effect of the red light band can be detected in real time, and the problem that the pain point cannot be effectively fed back when the red light band is triggered by the traditional flaw detection car is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway flaw detection equipment technical field especially relates to a railway flaw detection car red light band trigger auxiliary device. BACKGROUND

[0002] The current railway rail is connected section by section, and a certain gap is left at the rail connection, and a steel plate is mechanically connected at the gap, and a steel wire is further connected, so that the two rails are connected. Connect all the rails in a section to the power supply, and set a signal lamp connected with the rail beside the rail, when the two sides of the rail are connected, the signal lamp will change color, showing that the vehicle is running in the current section.

[0003] The rail flaw detection car can detect the damage on the rail. When the flaw detection car detects the rail, the rail is connected at both ends through the internal mechanical structure, so that the red light band is generated. However, due to the small size of the rail car itself, when encountering a railway with serious rust line or due to the wear of the contact device itself, the red light band may not be triggered, but the operator does not know, which has a great safety hazard. Therefore, the utility model provides a railway flaw detection car red light band trigger auxiliary device. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model provides a railway flaw detection car red light band trigger auxiliary device, which can accurately detect the current change caused by the small defect on the track through the detection circuit composed of the first wire on the track and the alternating current meter. The current meter contact switch is used as a trigger element. Once the abnormal change is detected, the current alarm circuit can be triggered immediately.

[0005] The railway flaw detection car red light band trigger auxiliary device in the scheme includes two first wires electrically connected with the two sides of the track respectively, and an alternating current meter is connected in series between the two first wires. The alternating current meter is electrically connected with a current meter contact switch, the auxiliary device further includes an alarm, a power supply and a third wire, and the current meter contact switch, the alarm and the power supply are connected in series through the third wire to form a circuit for controlling the opening and closing of the contact.

[0006] The utility model further limits the technical scheme:

[0007] Further, the alternating current meter and the current meter contact switch are electrically connected through the second wire.

[0008] Further, the alarm includes a buzzer alarm.

[0009] Further, the current meter contact switch includes a relay contact switch.

[0010] Further, the power supply is a 12V DC power supply.

[0011] The red light belt triggering auxiliary device has the advantages that the detection circuit composed of the first wires on the track and the AC ammeter can accurately detect the current change caused by the slight defects on the track, the ammeter contact switch is used as a triggering element, once the abnormal change is detected, the current alarm circuit can be triggered immediately, the red light belt effect can be detected in real time, the personnel and equipment essential safety are guaranteed, and the pain point problem that the traditional flaw detection vehicle cannot effectively feedback the triggering of the red light belt is solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Fig. 1 is a structural schematic view of a red light belt triggering auxiliary device of a railway flaw detection vehicle in the embodiment of the utility model;

[0013] Figure 2 Fig. 2 is a schematic view of the railway flaw detection vehicle in the embodiment of the utility model when detecting the steel rail;

[0014] Wherein: 10, the first track; 20, the second track; 30, the first wire; 40, the AC ammeter; 50, the second wire; 60, the ammeter contact switch; 70, the alarm; 80, the power supply; 90, the third wire. DETAILED DESCRIPTION

[0015] The railway flaw detection vehicle red light belt triggering auxiliary device provided in the embodiment, as shown in Figure 1 Fig. 1, specifically includes two first wires 30 electrically connected with the first track 10 and the second track 20 on both sides of the track, and the two first wires 30 are connected in series with an AC ammeter 40, and the AC ammeter 40 is electrically connected with an ammeter contact switch 60 through a second wire 50; the overall device further includes an alarm 70, a power supply 80 and a third wire 90, the ammeter contact switch 60, the alarm 70 and the power supply 80 are connected in series through the third wire 90 to form a circuit for controlling the opening or closing of the contact. The alarm 70 in the embodiment is specifically a buzzer alarm, the ammeter contact switch 60 is specifically a relay contact switch, and the power supply 80 is a 12V DC power supply.

[0016] As shown in Figure 2As shown, the electrical connection mode of the two first conductive wires 30 with the track in the application is specifically that two conductive wires are drawn from the rollers at both ends of the defect detection vehicle and used as current induction, when the rollers effectively contact the track and the surface of the track is in good conductive state, the alternating current meter 40 senses current signal, indicating that the red light band triggering is good, and the alarm lamp is extinguished; when the rollers do not effectively contact the track or the surface of the track is in poor conductive state, at this time the circuit is in open circuit state, the alternating current meter 40 cannot sense current, at this time the alarm point outputs the current meter contact switch 60 through the internally set alarm parameter, the alarm lamp 70 flashes and buzzes, which can timely remind the operator, accurately detect the track anomaly and timely alarm.

[0017] It can be understood that in most cases, the conventional track circuit track has an alternating voltage of 1-10V at both ends, when the two ends are in contact, there will be a weak milliamperes current passing through, so a high-precision ammeter with alarm function (i.e. the alternating current meter 40) is connected in series in the triggering circuit, when current flows, it proves that the red light band device is in good contact and can stably trigger the red light band, when the current is 0, it proves that the contact is poor and the red light band is not effectively generated, at this time the alarm relay is output and a 12V DC power supply is externally connected to trigger the buzzer alarm, which timely reminds the operator to pay attention to the fact that the red light band may not be effectively triggered at this time and needs to be timely contacted with the dispatching center. If it is not triggered for a long time, the equipment needs to be repaired in time to check the reason why it cannot be triggered. The internal resistance of the ammeter is very small, this circuit can not only trigger the red light band but also can verify the reliability of the red light band triggering, so that the safety performance is greatly improved. The system uses an externally connected 12V DC power supply for power supply, does not damage the original defect detection vehicle circuit and is simple and safe.

[0018] In addition to the above embodiments, the utility model can also have other implementation manners; any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A red light belt triggering auxiliary device for a railway defect detection vehicle, characterized in that, The auxiliary device comprises two first conductive wires (30) electrically connected to two sides of a track respectively, an AC ammeter (40) connected in series between the two first conductive wires (30), an ammeter contact switch (60) electrically connected to the AC ammeter (40), an alarm (70), a power supply (80) and a third conductive wire (90), wherein the ammeter contact switch (60), the alarm (70) and the power supply (80) are connected in series through the third conductive wire (90) to form a circuit for controlling the opening and closing of the contact.

2. The red light belt trigger assist device for a rail defect detection car of claim 1, wherein, The AC ammeter (40) and the ammeter contact switch (60) are electrically connected through a second conductive wire (50).

3. The red light belt trigger assist device for a rail defect detection car of claim 1, wherein, The alarm (70) comprises a buzzer alarm.

4. The red light belt trigger assist device for a rail defect detection car of claim 1, wherein, The ammeter contact switch (60) comprises a relay contact switch.

5. The red light belt trigger assist device for a rail defect detection car of claim 1, wherein, The power supply (80) is a 12V DC power supply.

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