Monitoring and protecting device suitable for unrelieved braking in return transportation

Abstract

The utility model relates to a monitoring and protecting device suitable for unrelieved braking in return transportation, which comprises a forced relieving button, a power indicating lamp, a first braking applying indicating lamp, a second braking applying indicating lamp, a braking relieving indicating lamp, a buzzer, a train pipe pressure detection switch, a total air pressure detection switch and a train pipe pressure detection relay, a main air pressure detection relay, a brake pressure detection relay, a brake release detection relay and an isolation switch. According to the monitoring and protecting device suitable for the return transportation braking non-relieving, the running state of a metro vehicle is monitored by observing the states of the indicating lamp, the buzzer and the like, braking applying and relieving signals, total air pressure signals and train pipe pressure signals are visually observed through the device, the operation intensity of personnel is reduced, and the operation skill of the personnel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban subway vehicle production and manufacturing, and particularly relates to a monitoring and protection device for non - release of braking during return transportation. Background Technique

[0002] With the continuous development of urban subway vehicles, how to transport subway vehicles to the user site safely and quickly is an important prerequisite considered by vehicle manufacturers. To save production costs, railway return transportation is usually adopted for subway vehicles, and the vehicle itself has no power and is towed without power. Therefore, the reliability of the braking system during transportation is particularly important, which is related to the safety and reliability of subway vehicle transportation.

[0003] The existing return transportation method is to monitor the total air pressure of the return vehicle, the braking pressure of the train pipe, vehicle power supply, braking application, release, etc. by means of manual supervision, and analyze the braking - related parameters of the vehicle through vehicle guardians to judge whether the braking system is in a normal state. Such a control method requires a high skill level of personnel. If a fault occurs in the braking system during operation, the vehicle guardians cannot make a judgment and solve it in a short time, and during transportation, if any problem occurs to the vehicle, the return vehicle guardians cannot get off the vehicle to check the vehicle state, and the vehicle cannot be released, which is likely to cause major railway transportation accidents. Content of the Utility Model

[0004] The utility model aims to solve the technical problems in the prior art and provides a monitoring and protection device for non - release of braking during return transportation.

[0005] To solve the above - mentioned technical problems, the technical solution of the utility model is as follows:

[0006] A monitoring and protection device for non - release of braking during return transportation includes: a forced release button, a power indicator light, a first braking application indicator light, a second braking application indicator light, a braking release indicator light, a buzzer, a train pipe pressure detection switch, a main air pressure detection switch, a train pipe pressure detection relay, a main air pressure detection relay, a braking pressure detection relay, a braking release detection relay, and a disconnecting switch;

[0007] The monitoring and protection device is connected to the power supply of the subway vehicle through a power positive signal line and a power negative signal line; connected to the subway vehicle braking application signal through a braking application signal line; connected to the vehicle braking release signal of the subway vehicle through a braking release signal line; connected to the vehicle braking forced release signal of the subway vehicle through a forced release signal line;

[0008] The train pipe pressure detection switch is connected to the train pipe of the subway vehicle through a train pipe pressure detection signal line to detect the train pipe pressure state of the subway vehicle;

[0009] The main air pressure detection switch is connected to the main air duct of the subway vehicle through the main air pressure detection signal line to detect the pressure state of the main air duct of the subway vehicle;

[0010] When the train pipe decompresses, the train pipe pressure detection switch is used to disconnect, causing the train pipe pressure detection relay to lose power, the brake pressure detection relay to be energized, the normally open contact to close, the buzzer to sound, and the first brake application indicator to light up; when the train pipe is charging, the train pipe pressure detection switch is used to close, causing the train pipe pressure detection relay to be energized, the brake pressure detection relay to lose power, and the buzzer not to sound;

[0011] When the main air duct pressure of the subway vehicle is insufficient, the main air pressure detection switch is used to disconnect, causing the main air pressure detection relay to lose power, the brake pressure detection relay to be energized, the buzzer to sound, and the first brake application indicator to light up, reminding the vehicle guardian to turn on the air compressor of the subway vehicle to charge the train and meet the main air pressure of the subway vehicle;

[0012] When the train pipe of the subway vehicle decompresses, the subway vehicle applies brakes, and the second brake application indicator is used to light up to make the buzzer sound, reminding the vehicle guardian to confirm the state of the subway vehicle. If it is normal, press the disconnector switch to isolate the buzzer and the buzzer will not sound;

[0013] When the train pipe of the subway vehicle is charging, the subway vehicle's brakes are released, and the brake release indicator is used to light up to make the brake release detection relay energized, the normally closed contact to open, and the buzzer not to sound.

[0014] In the above technical solution, the working power supply is obtained through the power positive signal line and the power negative signal line to monitor the power supply state of the subway vehicle.

[0015] In the above technical solution, when the buzzer sounds and the second brake application indicator lights up, the vehicle guardian judges whether it is normal according to the vehicle state of the subway vehicle:

[0016] If it is not normal, the vehicle guardian solves it to ensure the safe operation of the subway vehicle;

[0017] If it cannot be solved, by pressing the forced release button, a forced release instruction is sent through the forced release signal line to give a forced release signal to the subway vehicle's braking system, and the subway vehicle's brakes are released to ensure the normal operation of the subway vehicle's transportation.

[0018] The utility model has the following beneficial effects:

[0019] The monitoring and protection device for non - release of braking during return transportation of the utility model monitors the running state of subway vehicles by observing the status of indicator lights, buzzers, etc. It visually observes the braking application, release signal, main air pressure signal, and train pipe pressure signal, reducing the operation intensity of personnel and improving the operation skills of personnel; monitors the running state of the vehicle through the status of indicator lights, reducing the labor intensity; quickly solves the problem of non - release of braking through the forced release button, ensuring synchronous operation with the braking application and release of railway transport vehicles; effectively prevents the occurrence of railway traffic safety accidents, improves the safety and reliability of vehicle operation, and reduces production costs; reduces the number of times of vehicle guardians getting off the vehicle for inspection, ensuring the safety of vehicle guardians' operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further elaborates on the utility model in detail in conjunction with the drawings and specific embodiments.

[0021] Figure 1 It is a schematic structural diagram of the monitoring and protection device for non - release of braking during return transportation of the utility model.

[0022] Figure 2 It is a schematic diagram of the internal circuit control of the monitoring and protection device for non - release of braking during return transportation of the utility model.

[0023] The reference numerals in the drawings are represented as:

[0024] 1 - Positive power supply signal line; 2 - Negative power supply signal line; 3 - Braking application signal line; 4 - Braking release signal line; 5 - Forced release signal line; 6 - Train pipe pressure detection signal line; 7 - Main air pressure detection signal line;

[0025] HL1 - Power supply indicator light; HL2 - First braking application indicator light; HL3 - Second braking application indicator light; HL4 - Braking release indicator light; H1 - Buzzer; K01 - Train pipe pressure detection relay; K02 - Main air pressure detection relay; K03 - Braking pressure detection relay; K04 - Braking release detection relay;

[0026] SB1 - Forced release button; SB2 - Isolating switch;

[0027] PS1 - Train pipe pressure detection switch; PS2 - Main air pressure detection switch. SPECIFIC EMBODIMENTS

[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The following further describes the present utility model in detail in conjunction with the accompanying drawings.

[0030] The present utility model is applicable to a monitoring and protection device for non - release of braking during return transportation. By monitoring the vehicle power supply status, braking application, and release status, and through status displays such as indicator lights, the vehicle status can be quickly judged, solving problems such as non - release of braking and wheel rubbing caused by factors such as low skill levels and weak sense of responsibility of personnel, which may lead to major railway transportation accidents. When the vehicle cannot be released during return transportation, the guardians of the return vehicle cannot get off to check the vehicle status. A forced release method can be adopted to keep the vehicle in a released state during operation, realizing synchronization of braking application and release in railway transportation and ensuring the normal operation of the vehicle.

[0031] The present utility model is applicable to a monitoring and protection device for non - release of braking during return transportation. By connecting to the return subway vehicle, it monitors and protects the braking state of the subway vehicle. The monitoring and protection device includes: a button, multiple indicator lights, a buzzer, multiple pressure switches, multiple relays, and a disconnector. As Figure 1 and 2 shown, among which:

[0032] The button is: the forced release button SB1;

[0033] The multiple indicator lights include: the power indicator light HL1, the first braking application indicator light HL2, the second braking application indicator light HL3, and the braking release indicator light HL4;

[0034] The buzzer is: the buzzer H1;

[0035] The multiple pressure switches include: the train pipe pressure detection switch PS1, the main air pressure detection switch PS2;

[0036] The multiple relays include: a train pipe pressure detection relay K01, a main reservoir pressure detection relay K02, a brake pressure detection relay K03, and a brake release detection relay K04;

[0037] The disconnecting switch is: disconnecting switch SB2.

[0038] The monitoring and protection device of the present utility model is connected to the DC110 power supply of the subway vehicle through a power positive signal line 1 and a power negative signal line 2 to obtain the working power supply, and at the same time monitors the power supply status of the subway vehicle.

[0039] The train pipe pressure detection switch PS1 of the monitoring and protection device of the present utility model is connected to the train pipe of the subway vehicle through a train pipe pressure detection signal line 6 to detect the train pipe pressure status of the subway vehicle; when the train pipe is depressurized, the train pipe pressure detection switch PS1 disconnects, the train pipe pressure detection relay K01 loses power, the brake pressure detection relay K03 gets power, the normally open contact closes, the buzzer H1 sounds, and the first brake application indicator light HL2 lights up; when the train pipe is charged with air, the train pipe pressure detection switch PS1 closes, the train pipe pressure detection relay K01 gets power, the brake pressure detection relay K03 loses power, and the buzzer H1 does not sound.

[0040] The main reservoir pressure detection switch PS2 of the monitoring and protection device of the present utility model is connected to the main reservoir of the subway vehicle through a main reservoir pressure detection signal line 7 to detect the main reservoir pressure status of the subway vehicle; when the main reservoir pressure of the subway vehicle is insufficient, the contact of the main reservoir pressure detection switch PS2 disconnects, the main reservoir pressure detection relay K02 loses power, the brake pressure detection relay K03 gets power, the buzzer H1 sounds, and the first brake application indicator light HL2 lights up, reminding the vehicle guardian to turn on the air compressor of the subway vehicle to charge the train to meet the main reservoir pressure of the subway vehicle.

[0041] The monitoring and protection device of the present utility model is connected to the brake application signal of the subway vehicle through a brake application signal line 3; when the train pipe of the subway vehicle is depressurized, the subway vehicle applies the brake, and the brake signal gives a signal to the monitoring and protection device, the second brake application indicator light HL3 lights up, and the buzzer H1 sounds, reminding the vehicle guardian to confirm the status of the subway vehicle. If it is normal, press the disconnecting switch SB2 to isolate the buzzer H1, and the buzzer H1 does not sound;

[0042] The monitoring and protection device of the present utility model is connected to the vehicle brake release signal of the subway vehicle through a brake release signal line 4; when the train pipe of the subway vehicle is charged with air, the subway vehicle releases the brake, and the release signal gives a signal to the monitoring and protection device, the brake release indicator light HL4 lights up, and at the same time the brake release detection relay K04 gets power, the normally closed contact disconnects, and the buzzer H1 does not sound.

[0043] The monitoring and protection device of the utility model is connected to the vehicle braking forced release signal of the subway vehicle through the forced release signal line 5; when the buzzer H1 sounds and the second braking application indicator light HL3 is on, the vehicle guardian judges whether the vehicle state of the subway vehicle is normal according to the vehicle state; if it is not normal, the vehicle guardian should solve it to ensure the safe operation of the subway vehicle; if it cannot be quickly solved, press the forced release button SB1 to send a forced release instruction through the forced release signal line 5 to give a forced release signal to the subway vehicle braking system, and the subway vehicle braking is released to ensure the normal operation of the subway vehicle transportation.

[0044] The utility model is applicable to the monitoring and protection device for the non-release of the return transportation braking. It uses the status of observation indicator lights, buzzers, etc. to monitor the operation status of the subway vehicle. It directly observes the braking application, release signal, main air pressure signal, and train pipe pressure signal through the device, reduces the operation intensity of personnel, and improves the operation skills of personnel; monitors the operation status of the vehicle through the status of the indicator lights, reducing the labor intensity; quickly solves the problem of non-release of braking through the forced release button, ensuring synchronous operation with the braking application and release of railway transportation vehicles; effectively prevents the occurrence of railway traffic safety accidents, improves the safety and reliability of vehicle operation, and reduces production costs; reduces the number of times of vehicle guardians getting off the vehicle to check the vehicle, ensuring the safety of vehicle guardians' operations.

[0045] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A monitoring and protection device applicable to the non - release of braking during return transportation, characterized in that, Including: Forced release button (SB1), power indicator light (HL1), first brake application indicator light (HL2), second brake application indicator light (HL3), brake release indicator light (HL4), buzzer (H1), train pipe pressure detection switch (PS1), main reservoir pressure detection switch (PS2), train pipe pressure detection relay (K01), main reservoir pressure detection relay (K02), brake pressure detection relay (K03), brake release detection relay (K04), and disconnecting switch (SB2); This monitoring and protection device is connected to the power supply of the subway vehicle through the positive power supply signal line (1) and the negative power supply signal line (2); connected to the brake application signal of the subway vehicle through the brake application signal line (3); connected to the vehicle brake release signal of the subway vehicle through the brake release signal line (4); connected to the vehicle brake forced release signal of the subway vehicle through the forced release signal line (5); The train pipe pressure detection switch (PS1) is connected to the train pipe of the subway vehicle through the train pipe pressure detection signal line (6) to detect the train pipe pressure state of the subway vehicle; The main reservoir pressure detection switch (PS2) is connected to the main reservoir pipe of the subway vehicle through the main reservoir pressure detection signal line (7) to detect the main reservoir pipe pressure state of the subway vehicle; When the train pipe is depressurized, the train pipe pressure detection switch (PS1) is used to cut off, causing the train pipe pressure detection relay (K01) to lose power, the brake pressure detection relay (K03) to be energized, the normally open contact to close, and the buzzer (H1) to sound, and the first brake application indicator light (HL2) to light up; when the train pipe is charged, the train pipe pressure detection switch (PS1) is used to close, causing the train pipe pressure detection relay (K01) to be energized, the brake pressure detection relay (K03) to lose power, and the buzzer (H1) not to sound; When the main reservoir pipe pressure of the subway vehicle is insufficient, the main reservoir pressure detection switch (PS2) is used to cut off, causing the main reservoir pressure detection relay (K02) to lose power, the brake pressure detection relay (K03) to be energized, the buzzer (H1) to sound, and the first brake application indicator light (HL2) to light up, reminding the vehicle guardian to turn on the air compressor of the subway vehicle to charge the train and meet the main reservoir pressure of the subway vehicle; When the train pipe of the subway vehicle is depressurized and the subway vehicle applies brakes, the second brake application indicator light (HL3) is used to light up, causing the buzzer (H1) to sound, reminding the vehicle guardian to confirm the state of the subway vehicle. If it is normal, press the disconnecting switch (SB2) to isolate the buzzer (H1), and the buzzer (H1) will not sound; When the train pipe of the subway vehicle is charged and the subway vehicle brake is released, the brake release indicator light (HL4) is used to light up, causing the brake release detection relay (K04) to be energized, the normally closed contact to open, and the buzzer (H1) not to sound.

2. The monitoring and protection device for non-relieved braking applicable to return transportation according to claim 1, characterized in that Obtain the working power supply through the positive power supply signal line (1) and the negative power supply signal line (2) to monitor the power supply state of the subway vehicle.

3. The monitoring and protection device for non-relieved braking applicable to return transportation according to claim 1, wherein When the buzzer (H1) sounds and the second brake application indicator light (HL3) is on, the vehicle guardian judges whether it is normal according to the vehicle state of the subway vehicle: If it is abnormal, the vehicle guardians will solve it to ensure the safe operation of the subway vehicle; If it cannot be solved, by pressing the forced release button (SB1), a forced release instruction is sent via the forced release signal line (5) to give a forced release signal to the subway vehicle braking system, and the subway vehicle braking is released to ensure the normal operation of the subway vehicle transportation.

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