阅读说明：本技术 一种联挂救援停放制动状态指示电路 (Combined rescue parking brake state indicating circuit ) 是由 高琦 时蒙 潘夏宁 时瑞 董育凤 梁师嵩 陈志� 于 2021-08-11 设计创作，主要内容包括：本发明涉及一种联挂救援停放制动状态指示电路,包括救援车联挂继电器、救援端联挂继电器、司机室激活继电器、停放制动状态显示灯和贯穿全车的联挂监控列车线和监控列车回线。本发明电路通过救援车和被救援车各自的联挂状态、以及联挂端的联挂状态进行设计,使其在两列车联挂时,救援车可以查看“救援车+被救援车”的停放制动施加缓解状态,非联挂状态下,也可以正常查看本车的停止制动施加缓解状态。电路设计即保证了联挂状态下两列车停放制动状态的监视,又不影响列车单独运行时的状态监视功能。(The invention relates to a linked rescue parking brake state indicating circuit which comprises a rescue vehicle linked relay, a rescue end linked relay, a cab activation relay, a parking brake state display lamp, a linked monitoring train line penetrating through the whole vehicle and a monitoring train return line. The circuit of the invention is designed by the respective coupling states of the rescue vehicle and the rescued vehicle and the coupling state of the coupling end, so that when two trains of vehicles are coupled, the rescue vehicle can check the parking brake application relief state of 'the rescue vehicle + the rescued vehicle', and can also normally check the stop brake application relief state of the vehicle in the non-coupling state. The circuit design not only ensures the monitoring of the parking brake states of two trains in a coupled state, but also does not influence the state monitoring function of the trains during independent operation.)

1. The utility model provides a joint rescue parking brake state indicating circuit which characterized in that includes: the system comprises a rescue vehicle coupling relay (GTCR), a rescue end coupling relay (RTCR), a cab activation relay (LCAR) and parking brake state display lamps (APBRI and APBAI) which are arranged on a head vehicle, a coupling monitoring train line (L1) and a monitoring train return line (L2) which penetrate through the whole vehicle, and each vehicle is provided with normally open contacts (PBRR and PBAR) which are connected in series with the coupling monitoring train line (L1) and are used for monitoring the parking brake state; a normally closed contact (GTCR-1) of a rescue vehicle coupling relay (GTCR), a first normally closed contact (RTCR-1) of a rescue end coupling relay (RTCR), a normally closed contact (LCAR-1) of a cab activation relay (LCAR), a second normally closed contact (RTCR-2) of the rescue end coupling relay (RTCR), a first normally open contact (LCAR-2) of the cab activation relay (LCAR), a second normally open contact (LCAR-3) and parking brake state display lamps (APBRI and APBAI) are sequentially connected in series to be connected into a train power supply; the train monitoring system comprises a coupling monitoring train line (L1), a monitoring train line (L2) and a Rescue Terminal Coupling Relay (RTCR), wherein the coupling monitoring train line (L1) is connected to a line between a normally closed contact (LCAR-1) of a cab activation relay (LCAR) and a second normally closed contact (RTCR-2) of the Rescue Terminal Coupling Relay (RTCR), and the monitoring train line (L2) is connected to a line between a first normally open contact (LCAR-2) and a second normally open contact (LCAR-3) of the cab activation relay (LCAR); one end of a normally open contact (GTCR-2) of a rescue vehicle coupling relay (GTCR) is connected with a monitoring train return line (L2), and the other end of the normally open contact is connected with a line between a second normally closed contact (RTCR-2) of a rescue end coupling relay (RTCR) and a first normally open contact (LCAR-2) of a cab activation relay (LCAR).

2. The linked rescue parking brake state indication circuit of claim 1, wherein: when the vehicle is connected, the rescue vehicle connection relays (GTCR) at two ends of the rescue vehicle are powered on, otherwise, the power is not powered on; when the vehicle is connected, a rescue end connection relay (RTCR) of the connection end of the rescue vehicle and the rescued vehicle is electrified, otherwise, the RTCR is not electrified.

3. The linked rescue parking brake state indication circuit of claim 1, wherein: and a reverse-flow prevention diode (D) is connected in series between a second normally open contact (LCAR-3) of the cab activation relay (LCAR) and the parking brake state display lamps (APBRI and APBAI).

4. The linked rescue parking brake state indication circuit of claim 1, wherein: the parking brake state display lamps (APBRI, APBAI) are parking brake release indicator lamps (APBRI), and the normally open contacts (PBRR, PBAR) for monitoring the parking brake state are normally open contacts (PBRR) of the parking brake release relay; or the parking brake state indicator lamp (APBRI, APBAI) is a parking brake applying indicator lamp (APBAI), and the normally open contact (PBRR, PBAR) for monitoring the parking brake state is the normally open contact (PBAR) of the parking brake applying relay.

5. The linked rescue parking brake state indication circuit of claim 4, wherein: the system is provided with two coupling monitoring train lines (L1) and a monitoring train return line (L2), wherein the coupling monitoring train line (L1) is used for monitoring the application or release state of parking brake in the state of a single train or monitoring the application or release state of parking brake of two trains in pushing or dragging in the state of coupling two trains; and the monitoring train return line (L2) is used for monitoring the application or release state of the monitoring parking brake of the two trains when the two trains are pushed under the connected state of the two trains.

6. The linked rescue parking brake state indication circuit of claim 1, wherein: under the state that the vehicle is not connected in a hanging mode, a rescue vehicle connection hanging relay (GTCR) and a rescue end connection hanging relay (RTCR) at two ends of a rescue vehicle are not electrified, a cab activation relay (LCAR) of an activated cab is electrified, a cab activation relay (LCAR) of the inactivated cab is not electrified, a train power supply sequentially flows through a rescue vehicle connection hanging relay (GTCR) normally closed contact (GTCR-1) of the inactivated cab, a first normally closed contact (RTCR-1) of the rescue end connection hanging relay (RTCR), a normally closed contact (LCAR-1) of the cab activation relay (LCAR), a connection monitoring train line (L1), a rescue end connection hanging relay (RTCR) second normally closed contact (RTCR-2) of the activated cab, a first normally open contact (LCAR-2) of the cab activation relay (LCAR), and a second normally open contact (LCAR-3) to reach a parking brake state display lamp (APBRI) of the activated cab, APBAI).

7. The linked rescue parking brake state indication circuit of claim 1, wherein: when pushing rescue is carried out in a vehicle coupling state, only a coupling end vehicle cab of a rescue vehicle is activated, a coupling end vehicle coupling relay (GTCR) at two ends of the rescue vehicle is electrified, the rescue vehicle and a rescue end coupling relay (RTCR) at a coupling end of the rescue vehicle are electrified, a train power supply sequentially flows through a normally closed contact (GTCR) of a rescue vehicle coupling relay (GTCR) of a vehicle at the far end of the rescue vehicle, a first normally closed contact (RTCR-1) of the rescue end coupling relay (RTCR), a normally closed contact (LCAR-1) of a cab activation relay (LCAR), a coupling monitoring train line (L1) of the rescued vehicle, a coupler connector, a coupling monitoring train line (L1) of the rescue vehicle, a second normally closed contact (RTCR-2) of the rescue end coupling relay (RTCR) of the rescue vehicle, a normally open contact (GTCR-2) of the rescue vehicle coupling relay (GTCR), and a normally open contact (GTCR-2) of the rescue vehicle coupling relay (GTCR-2), And monitoring a train return line (L2), and a second normally open contact (LCAR-3) of a cab activation relay (LCAR) at the coupling end of the rescue vehicle to reach parking brake state display lamps (APBRI and APBAI) for activating the cab.

8. The linked rescue parking brake state indication circuit of claim 1, wherein: when the vehicle is dragged to rescue in a linked state, only the cab of the non-linked end vehicle of the rescue vehicle is activated, the linked relays (GTCR) of the rescue vehicles at the two ends of the rescue vehicle are electrified, the linked relays (RTCR) of the rescue vehicles and the linked ends of the rescued vehicles are electrified, the train power supply sequentially flows through the normally closed contact (GTCR) of the linked relay (GTCR) of the vehicle at the far end of the rescued vehicle, the first normally closed contact (RTCR-1) of the linked relay (RTCR) of the rescue end, the normally closed contact (LCAR-1) of the cab activation relay (LCAR), the linked monitoring train line (L1) of the rescued vehicle, the coupler connector, the linked monitoring train line (L1) of the rescue vehicles, the second normally closed contact (RTCR-2) of the linked relay (RTCR) of the non-linked vehicles of the rescue vehicles, the first normally open contact (LCAR-2) of the cab activation relay (LCAR), The second normally open contact (LCAR-3) reaches the parking brake state display lamp (APBRI, APBAI) which activates the cab.

9. A rail vehicle, characterized in that: has a linked rescue parking brake status indication circuit as claimed in claims 1-8.

10. A rail vehicle, characterized in that: there are two sets of linked rescue parking brake status indicating circuits as claimed in claims 1-8, comprising two linked monitoring train lines (L1) and two monitoring train return lines (L2) for monitoring parking brake release status and parking brake application status, and two sets of relays are provided or each relay is added with a double contact.

Technical Field

The invention relates to a parking state indicating function during subway linkage rescue, and belongs to the technical field of subway control circuits.

Background

When the subway train fails in a section and cannot move, the same type of subway can be used for linked rescue, when the linked rescue vehicle is in a mode of communicating a large emergency braking loop, and the rescue vehicle and the rescued vehicle can apply emergency braking through the mushroom buttons. However, when the air duct of the rescue vehicle is broken or the braking cannot be relieved, the air brake of the rescue vehicle is required to be isolated during rescue, so that the rescue vehicle only has the spring brake function, namely parking brake, and the rescue vehicle cannot control the emergency brake of the rescue vehicle.

The current circuit design can only monitor the parking brake state of the vehicle. When the rescue vehicle is connected and hung, the parking brake state monitoring train line of the rescue vehicle and the rescued vehicle is not communicated. Even though the rescue vehicle can send out the parking brake application and the relieving instruction of the rescued vehicle, the driver of the rescue vehicle does not know the actual application relieving condition of the rescued vehicle. If the rescued car accidentally applies parking brake in the running process, the rescued car does not know the parking brake applying state of the rescued car, and the condition of the operation of the band-type brake of the rescued car can be caused.

According to the existing circuit, if a loop is simply extended and connected through a train line, the state of the rescued vehicle cannot be monitored by the rescued vehicle, and the condition that the cab at the linked end is activated or the cab at the non-linked end is activated when the rescued vehicle is rescued is considered, so that the working conditions of different cab activation are considered, and the parking braking state of the rescued vehicle can be checked in the rescued vehicle under various conditions.

Disclosure of Invention

The invention mainly aims to provide a linked rescue parking brake state indicating circuit, when two trains of vehicles are linked, a rescue vehicle can check a parking brake application relieving state of 'rescue vehicle + rescued vehicle', and can also normally check a stop brake application relieving state of the vehicle in a non-linked state. The circuit design not only ensures the monitoring of the parking brake states of two trains in a coupled state, but also does not influence the state monitoring function of the trains during independent operation.

In order to solve the technical problem, the invention provides a linked rescue parking brake state indicating circuit, which is characterized by comprising: the system comprises a rescue vehicle coupling relay, a rescue end coupling relay, a cab activation relay and a parking brake state display lamp which are arranged on a head vehicle, a coupling monitoring train line and a monitoring train return line which penetrate through the whole vehicle, wherein each vehicle is provided with a normally open contact which is connected in series with the coupling monitoring train line and is used for monitoring the parking brake state, and a normally closed contact of the rescue vehicle coupling relay, a first normally closed contact of the rescue end coupling relay, a normally closed contact of the cab activation relay, a second normally closed contact of the rescue end coupling relay, a first normally open contact of the cab activation relay, a second normally open contact and the parking brake state display lamp are sequentially connected in series with a train power supply; the coupling monitoring train line is connected to a line between the normally closed contact of the cab activation relay and the second normally closed contact of the rescue end coupling relay, and the monitoring train loop line is connected to a line between the first normally open contact and the second normally open contact of the cab activation relay; one end of a normally open contact of the rescue vehicle coupling relay is connected with a monitoring train return wire, and the other end of the normally open contact of the rescue vehicle coupling relay is connected with a line between a second normally closed contact of the rescue end coupling relay and a first normally open contact of the cab activation relay.

Further, in the above-mentioned case,

the system is provided with two coupling monitoring train lines and a monitoring train return line, wherein the coupling monitoring train line is used for monitoring the applying or relieving state of the parking brake in the state of a single train, or monitoring the applying or relieving state of the parking brake of two trains in the state of pushing or dragging in the state of coupling two trains; and the monitoring train loop is used for monitoring the applying or releasing state of the parking brake of the two trains during pushing under the condition that the two trains are connected.

The invention designs a brand-new control circuit which can realize the following functions:

(1) under the non-coupled state, when a single train runs, the driver cab at the activated end at any end can normally check the state of applying and relieving the parking brake of the train.

(2) Under the state of the linked rescue, if push rescue is adopted, when a driver cab at the linked end of the rescue vehicle is activated, and when a driver cab C2 is activated, the states of applying and relieving the parking brake of the rescue vehicle and the rescued vehicle can be normally checked at the C2.

(3) Under the state of the linked rescue, if the towed rescue is adopted, when a driver cab at the non-linked end of the rescue vehicle is activated, and when a driver cab C1 is activated, the state of applying and relieving the parking brake of the rescue vehicle and the rescued vehicle can be normally checked at C1.

The invention also claims a rail vehicle, characterized in that: the linked rescue parking brake state indicating circuit is provided.

The invention also relates to a rail vehicle, which is characterized in that: the two linked rescue parking brake state indicating circuits comprise two linked monitoring train lines and two monitoring train return lines, are used for monitoring a parking brake release state and a parking brake application state, and are provided with two sets of relays or each relay is additionally provided with a double contact.

Drawings

Fig. 1 is a schematic diagram of a linked rescue parking brake state indicating circuit.

Fig. 2 is a rescue schematic.

FIG. 3 is a parking brake status indicator lamp activation path in an uncoupled state.

Fig. 4 is a schematic diagram of an activation path of a brake state indicator lamp for pushing rescue in a hanging state.

Fig. 5 is a schematic diagram of an activation path of a brake state indicator lamp for towing rescue in a coupled state.

Detailed Description

The following explains an embodiment of the present invention with reference to the drawings.

As shown in fig. 1, the present embodiment of the associated rescue parking brake state indicating circuit includes: the system comprises a rescue vehicle coupling relay GTCR arranged on a head vehicle, a rescue end coupling relay RTC, a cab activation relay LCAR and a parking brake release indicator lamp APBRI (or a parking brake application indicator lamp APBAI). When the vehicle is connected, the GTCR of the rescue vehicle connection relays at the two ends of the rescue vehicle is electrified, otherwise, the GTCR is not electrified; when the vehicle is connected, the RTCR of the rescue end connection relay at the connection end of the rescue vehicle and the rescued vehicle is electrified, otherwise, the RTCR is not electrified.

The invention also discloses a linked rescue parking brake state indicating circuit, which comprises: and a coupling monitoring train line L1 and a monitoring train return line L2 penetrate through the whole train, wherein the coupling monitoring train line L1 of the coupling train is connected through a coupler connector, and the monitoring train return line L2 is not coupled. Each vehicle is provided with a parking brake release relay normally open contact PBRR (or a normally open contact PBAR for a parking brake applying relay) connected in series to a coupling monitoring train line L1 for monitoring the parking brake state,

As shown in figure 1, taking TC1 as an example, a normally closed contact GTCR-1 of a rescue vehicle coupling relay GTCR, a first normally closed contact RTCR-1 of a rescue end coupling relay RTCR, a normally closed contact LCAR-1 of a cab activation relay LCAR, a second normally closed contact RTCR-2 of the rescue end coupling relay RTCR, a first normally open contact LCAR-2 of the cab activation relay LCAR, a second normally open contact LCAR-3, a reverse flow prevention diode D and a parking brake release indicator light APBRI (or a parking brake application indicator light APBAI) are sequentially connected in series to a train power supply.

The train monitoring line L1 is connected on a line between a normally closed contact LCAR-1 of the cab activation relay LCAR and a second normally closed contact RTCR-2 of the rescue end linkage relay RTCR, and the train monitoring line L2 is connected on a line between a first normally open contact LCAR-2 and a second normally open contact LCAR-3 of the cab activation relay LCAR; one end of a normally open contact GTCR-2 of the rescue vehicle coupling relay GTCR is connected with a monitoring train return line L2, and the other end is connected with a line between a second normally closed contact RTCR-2 of the rescue end coupling relay RTCR and a first normally open contact LCAR-2 of the cab activation relay LCAR.

The circuit can be provided with two sets, one set is used for detecting the parking brake release state, and the other set is used for detecting the parking brake application state. Of course, only one set of circuitry may be provided for detecting either a parking brake release condition or a parking brake apply condition. When two sets of circuits are arranged, the two sets of circuits can share one set of relay, namely, the relay is additionally provided with one-time contacts to meet the functions of the two sets of circuits.

When the parking brake release state is detected, a normally open contact PBRR of the parking brake release relay is connected in series on the coupling monitoring train line L1, and a parking brake release indicator light APBRI is arranged in the activated cab. When the vehicle applies parking brake release, the parking brake release relay is electrified, the normally open contact PBRR of the parking brake release relay is closed, and the parking brake release indicator lamp APBRI in the driver room is lightened and activated, so that the parking brake release indicator lamp APBRI is convenient for a driver to check.

When the parking brake application state is detected, a normally open contact PBAR of a parking brake application relay is connected in series on the coupling monitoring train line L1, and a parking brake application indicator light APBAI is arranged in the activated cab. When the vehicle applies the parking brake to relieve, the parking brake applying relay is electrified, a normally open contact PBAR of the parking brake applying relay is closed, and a parking brake applying indicator light APBAI in a driver room is lightened and activated to be convenient for the driver to check.

Fig. 2 is a schematic view of rescue. The present invention will be described in detail below with reference to three operating modes.

(1) And in the non-coupling state, the single train runs.

As shown in fig. 3, in a non-coupled state of the vehicle, the GTCR of the rescue vehicle coupling relay at the two ends of the rescue vehicle and the RTCR of the rescue end coupling relay are not powered, and if the cab of the TC1 vehicle is activated, the LCAR of the TC1 vehicle is powered, the normally closed contact LCAR-1 of the LCAR of the TC1 vehicle is disconnected, and the power supply branch of the TC1 vehicle is disconnected. The cab activation relay LCAR of the TC2 vehicle is not electrified, the train power supply of the TC2 vehicle sequentially flows through a rescue vehicle coupling relay GTCR normally closed contact GTCR-1, a rescue end coupling relay RTCR first normally closed contact RTCR-1, a cab activation relay LCAR normally closed contact LCAR-1, a coupling monitoring train line L1, a rescue end coupling relay RTCR second normally closed contact RTCR-2, a cab activation relay LCAR first normally open contact LCAR-2 and a second normally open contact LCAR-3 of the TC2 vehicle (the current flow direction is shown by an arrow head in the figure) to reach a parking brake state display lamp for activating the cab, and the parking brake state display lamp is lightened so that a driver can observe the parking brake state display lamp conveniently. If the parking brake release state needs to be detected, a parking brake release relay is arranged on each train, a normally open contact PBRR of the parking brake release relay is connected in series with a linked monitoring train line L1, and a parking brake state display lamp is a parking brake release indicator lamp APBRI.

(2) And in the coupled state, the push rescue is adopted.

As shown in fig. 4, two trains are connected and rescue is carried out. The train A is a rescue vehicle, and the train B is a rescued vehicle. When pushing rescue is carried out in a vehicle coupling state, only a coupling end vehicle cab of a rescue vehicle (train A) is activated, rescue vehicle coupling relays GTCR at two ends of the rescue vehicle (train A) are electrified, a rescue end coupling relay RTCR at a coupling end of the rescue vehicle (train A) and a rescued vehicle (train B) are electrified, a train power supply sequentially flows through a rescue vehicle coupling relay GTCR normally closed contact GTCR-1 of a vehicle at the far end of the rescued vehicle, a rescue end coupling relay RTCR first normally closed contact RTCR-1, a cab activation relay LCAR normally closed contact LCAR-1, a rescued vehicle coupling monitoring train line L1, a coupler connector, a rescue vehicle coupling monitoring train line L1, a rescue end coupling relay RTCR second normally closed contact RTCR-2 of a non-coupling vehicle of the rescue vehicle, a rescue vehicle coupling relay GTCR-2, a normally open monitoring train line L2, And a second normally open contact LCAR-3 of a cab activation relay LCAR at the coupling end of the rescue vehicle reaches a parking brake state display lamp (the current flows to the arrow in the figure) for activating the cab, so that the parking brake state display lamp is lightened for the driver to observe. If the parking brake release state needs to be detected, a parking brake release relay is arranged on each train, a normally open contact PBRR of the parking brake release relay is connected in series with a linked monitoring train line L1, and a parking brake state display lamp is a parking brake release indicator lamp APBRI.

A driver can normally check the states of applying and relieving the parking brake of the rescue vehicle and the rescued vehicle at the linked activation end of the rescue vehicle.

(3) And in the coupled state, dragging rescue is adopted.

As shown in fig. 5, two vehicles are connected and towed for rescue. The train A is a rescue vehicle, the train B is a rescued vehicle, the TC2 end of the train A and the TC1 end of the train B are connected in a linkage mode, and the TC1 end of the train A is activated.

When the vehicle is dragged for rescue in a coupled state, only the cab of the non-coupled vehicle at the coupling end of the rescue vehicle (train A) is activated, the GTCR coupling relays at the two ends of the rescue vehicle are electrified, the RTCR coupling relays at the coupling ends of the rescue vehicle and the rescued vehicle are electrified, the train power supply sequentially flows through a GTCR normally closed contact GTCR-1 of the vehicle at the far end of the rescued vehicle, a RTCR first normally closed contact RTCR-1 of the RTCR coupling relay at the rescue end, a cab activation relay LCAR normally closed contact LCAR-1, a monitoring train line L1 coupled with the rescued vehicle, a coupler connector, a monitoring train line L1 coupled with the rescued vehicle, a RTCR second normally closed contact RTCR-2 of the non-coupled vehicle at the rescue end of the rescued vehicle, a first normally open contact AR-2 of the LCAR-3 of the cab activation relay, and a normally open arrow-type parking state display lamp (the current flow direction is shown in the figure head) for displaying the parking state, causing it to light up for the driver to observe. If the parking brake release state needs to be detected, a parking brake release relay is arranged on each train, a normally open contact PBRR of the parking brake release relay is connected in series with a linked monitoring train line L1, and a parking brake state display lamp is a parking brake release indicator lamp APBRI. .

The driver can normally check the states of applying and relieving the parking brake of the rescue vehicle and the rescued vehicle at the non-linked activating end of the rescue vehicle.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.