Rail transit safety interlocking device

Abstract

The invention discloses a rail transit safety interlocking device, comprising a climbing operation module, a grounding rod in place safety module, an emergency stop module and a readiness indication module, wherein the climbing operation safety module comprises a safety iron door switch, a boarding flap switch and a first relay, and the safety iron door switch, the boarding flap switch and the coil of the first relay are connected in series; the grounding rod in place safety module comprises a grounding rod switch and a second relay, and the coil of the grounding rod switch and the second relay are connected in series; the emergency stop module comprises a line emergency stop module and a third relay, and the line emergency stop module comprises an emergency stop button and a fourth relay, and the emergency stop button and the coil of the fourth relay are connected in series, and the contact of the fourth relay and the coil of the third relay are connected in series; the readiness indication module comprises a readiness indicator light, and the contact of the first relay, the contact of the second relay, the contact of the fourth relay and the readiness indicator light are connected in series, so as to improve the safety of the debugging process and reduce the existing safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and in particular to a rail transit safety interlocking device. Background Art

[0002] Rail transit vehicle commissioning is generally carried out in a fully enclosed workshop, which is equipped with AC or DC high-voltage power supplies according to work requirements, and the power supply method is generally exposed contact wires. Different from the formal operation scene, although the commissioning area is fully enclosed, the types of on-site personnel are complex and the types of operations are various. The commissioning vehicle may have abnormal conditions and there is a greater risk of electric shock.

[0003] However, the existing emergency power-off measures are not complete enough, lack protection in case of misoperation, and cannot ensure timely power off when potential risks are discovered or an emergency occurs, resulting in certain safety hazards at the debugging site. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a rail transit safety interlocking device, which can improve the safety of the debugging process and reduce the existing safety hazards.

[0005] An embodiment of the present invention provides a rail transit safety interlocking device, including a climbing operation safety module, a grounding rod in place safety module, an emergency stop module and a readiness indication module, wherein the climbing operation safety module includes a safety iron door switch, a boarding flap switch and a first relay for cutting off a high-voltage debugging power supply, wherein the safety iron door switch, the boarding flap switch and the coil of the first relay are connected in series between the live wire end and the neutral wire end of the control power supply; the grounding rod in place safety module includes a grounding rod switch and a second relay for cutting off the high-voltage debugging power supply, wherein the grounding rod switch and the coil of the second relay are connected in series between the live wire end and the neutral wire end of the control power supply The emergency stop module includes a line emergency stop module and a third relay for cutting off the high-voltage debugging power supply, the line emergency stop module includes a plurality of emergency stop buttons and a fourth relay, the plurality of emergency stop buttons and the coils of the fourth relay are connected in series between the live wire end and the neutral wire end of the control power supply, the contacts of the fourth relay and the coil of the third relay are connected in series between the live wire end and the neutral wire end of the control power supply; the ready indication module includes a ready indicator light, the contacts of the first relay, the contacts of the second relay, the contacts of the fourth relay and the ready indicator light are connected in series between the live wire end and the neutral wire end of the control power supply.

[0006] The rail transit safety interlocking device according to the embodiment of the present invention has at least the following beneficial effects: the rail transit safety interlocking device includes a climbing operation module, a grounding rod in place safety module, an emergency stop module and a readiness indication module, the climbing operation safety module includes a safety iron door switch, a boarding flap switch and a first relay, by connecting the safety iron door switch, the boarding flap switch and the coils of the first relay in series between the live wire end and the neutral wire end of the control power supply, during the line power-on process, if the climbing operation platform is abnormally opened, it can output a protection tripping signal, and cut off the high-voltage debugging power supply through the first relay; the grounding rod in place safety module includes a grounding rod switch and a second relay, by connecting the coils of the grounding rod switch and the second relay in series between the live wire end and the neutral wire end of the control power supply, if the grounding rod is not in place, the second relay outputs a tripping signal and cuts off the high-voltage debugging power supply; the emergency stop module includes a line emergency stop module and a third relay, the line emergency stop module includes a plurality of emergency stop buttons and a fourth relay, the plurality of emergency stop buttons and the coils of the fourth relay are connected in series between the live wire end and the neutral wire end of the control power supply, and any emergency is triggered in an emergency. Stop button, the line emergency stop module outputs a tripping signal through the fourth relay, the contacts of the fourth relay and the coil of the third relay are connected in series between the live wire end and the neutral wire end of the control power supply, and the third relay outputs a protection tripping signal to the high-voltage power supply system and cuts off all high-voltage debugging power supplies; the ready indication module includes a ready indicator light, the contacts of the first relay, the contacts of the second relay, the contacts of the fourth relay and the ready indicator light are connected in series between the live wire end and the neutral wire end of the control power supply, when the emergency stop button is reset, the grounding rod is in place, and the climbing work platform is closed, it indicates that all on-site conditions of this line are normal, the state ready circuit outputs a ready signal, the high voltage is turned on, the ready indicator light is on, and when a certain state on the site is abnormal, the device outputs a protection tripping signal; by integrating various relevant states and action signals on site during the debugging process, and electrically interlocking with the high-voltage power supply system, the high-voltage power supply can be cut off in time when an emergency state is encountered during the high-voltage power-on debugging process, thereby improving the safety of the debugging process, meeting the on-site protection requirements of high-voltage power-on debugging in complex environments, and reducing possible safety hazards.

[0007] According to some embodiments of the present invention, a power-on warning module is also included, which includes an AC isolation knife closing module, a DC isolation knife closing module, a fifth relay for triggering a safety voltage strobe light, and a sixth relay for triggering a power-on display sign. The AC isolation knife closing module includes an AC isolation knife auxiliary switch and a seventh relay, and the DC isolation knife closing module includes a DC isolation knife auxiliary switch and an eighth relay. The coils of the AC isolation knife auxiliary switch and the seventh relay are connected in series between the live wire and the neutral wire of the control power supply, and the coils of the DC isolation knife auxiliary switch and the eighth relay are connected in series between the live wire and the neutral wire of the control power supply.

[0008] The rail transit safety interlocking device also includes a power-on warning module, which includes an AC isolating knife closing module, a DC isolating knife closing module, a fifth relay and a sixth relay. The AC isolating knife closing module includes an AC isolating knife auxiliary switch and a seventh relay. The coils of the AC isolating knife auxiliary switch and the seventh relay are connected in series between the live wire end and the neutral wire end of the control power supply. When the contact network is connected to high voltage, the AC isolating knife auxiliary switch is closed, and the seventh relay outputs an AC power-on signal. The DC isolating knife closing module includes a DC isolating knife auxiliary switch and an eighth relay. The coils of the DC isolating knife auxiliary switch and the eighth relay are connected in series between the live wire end and the neutral wire end of the control power supply. The DC isolating knife auxiliary switch is closed, and the eighth relay outputs a DC power-on signal. When the contact network is connected to high voltage, the fifth relay triggers the safety voltage strobe light to light up, warning that the power-on state has been turned on. The sixth relay triggers the power-on display board to display the "power-on" information, which can realize the timely output of the power-on indication signal to the site when the line is energized, so as to play a role in the on-site debugging power-on prompt.

[0009] According to some embodiments of the present invention, the contacts of the seventh relay and the coil of the fifth relay are connected in series between the live wire terminal and the neutral wire terminal of the control power supply, the coil of the sixth relay and the coil of the fifth relay are connected in parallel, and the contacts of the eighth relay and the contacts of the seventh relay are connected in parallel.

[0010] The contacts of the seventh relay and the coil of the fifth relay are connected in series between the live wire and the neutral wire of the control power supply. The coil of the sixth relay is connected in parallel with the coil of the fifth relay. When high voltage is passed through the contact network, the fifth relay triggers the safety voltage strobe light to light up, warning that the power is on. The sixth relay triggers the power-on display board to display the "power on" information to serve as a power-on warning for on-site debugging. The contacts of the eighth relay and the seventh relay are connected in parallel. When either the AC isolation knife closing module or the DC isolation knife closing module outputs a power-on signal, it can trigger the safety voltage strobe light and the power-on display board to light up, and output the power-on indication signal to the site in time.

[0011] According to some embodiments of the present invention, the power-on warning module also includes a manual control module, which includes a manual-automatic switching switch, a ninth relay, a manual opening switch and a manual closing switch, the manual-automatic switching switch and the coil of the ninth relay are connected in series between the live wire and the neutral wire of the control power supply, the first contact of the ninth relay, the manual opening switch, the manual closing switch and the coil of the fifth relay are connected in series between the live wire and the neutral wire of the control power supply, the second contact of the ninth relay, the contact of the seventh relay and the coil of the fifth relay are connected in series between the live wire and the neutral wire of the control power supply, and the contact of the fifth relay is connected in parallel with the manual closing switch.

[0012] The power-on warning module also includes a manual control module, which includes a manual-automatic switching switch, a ninth relay, a manual opening switch and a manual closing switch. The coils of the manual-automatic switching switch and the ninth relay are connected in series between the live wire and the neutral wire of the control power supply. When the manual-automatic switching switch is triggered, the ninth relay outputs a switching control signal, so that the power-on warning module switches from automatic control to manual control. The first contact of the ninth relay, the manual opening switch, the manual closing switch and the coil of the fifth relay are connected in series between the live wire and the neutral wire of the control power supply. The second contact of the ninth relay, the contact of the seventh relay and the coil of the fifth relay are connected in series between the live wire and the neutral wire of the control power supply. The contact of the fifth relay is connected in parallel with the manual closing switch. By triggering the manual opening switch and the manual closing switch, manual control of the safety voltage strobe light and the power-on display board can be achieved.

[0013] The power-on warning module also includes a manual control module, which includes a manual-automatic switching switch, a ninth relay, a manual opening switch and a manual closing switch. The coils of the manual-automatic switching switch and the ninth relay are connected in series between the live wire and the neutral wire of the control power supply. When the manual-automatic switching switch is triggered, the ninth relay outputs a switching control signal to switch the power-on warning module from automatic control to manual control. The contacts of the ninth relay, the manual opening switch and the manual closing switch are connected in series between the live wire and the neutral wire of the control power supply. The contacts of the manual closing switch and the fifth relay are connected in parallel. By triggering the manual opening switch and the manual opening switch, manual control of the safety voltage strobe light and the power-on display board can be achieved.

[0014] According to some embodiments of the present invention, the emergency stop module further includes an emergency stop indicator light, which is connected in parallel to both ends of the coil of the third relay. The emergency stop module includes an emergency stop indicator light connected in parallel to both ends of the coil of the third relay. In an emergency, by triggering any emergency stop button, the third relay outputs a protection trip signal to the high-voltage power supply system and cuts off all high-voltage debugging power supplies. At the same time, the emergency stop indicator light is on, indicating that the emergency stop button is actuated.

[0015] According to some embodiments of the present invention, a safety interlock release module is further included, the interlock release module includes a line release module and a tenth relay for releasing the interlock, the line release module includes an interlock release switch and an eleventh relay, the interlock release switch and the coil of the eleventh relay are connected in series between the live wire and the neutral wire of the control power supply, the coil of the tenth relay and the contact of the eleventh relay are connected in series between the live wire and the neutral wire of the control power supply, and the ready indicator light is connected in parallel to both ends of the coil of the tenth relay.

[0016] The rail transit safety interlocking device also includes a safety interlock release module, which includes a line release module and a tenth relay. The line release module includes an interlock release switch and an eleventh relay. The coils of the interlock release switch and the eleventh relay are connected in series. When the device fails or is under maintenance, the interlock release switch is triggered, and the eleventh relay outputs a release signal. The coil of the tenth relay and the contacts of the eleventh relay are connected in series between the live wire and the neutral wire of the control power supply. The interlock is released by the tenth relay, which can realize active removal of the safety interlock device. The ready indicator light is connected in parallel to both ends of the coil of the tenth relay. The ready indicator light is also lit at the same time by manually releasing the interlock.

[0017] According to some embodiments of the present invention, the release safety interlock module further includes a release indicator light, which is connected in parallel to both ends of the coil of the eleventh relay. The release safety interlock module further includes a release indicator light connected in parallel to both ends of the coil of the eleventh relay. When the device fails or is undergoing maintenance, the release interlock switch can be triggered, and the release interlock signal is output through the eleventh relay. The release indicator light also lights up at the same time, which can indicate the release of the safety interlock action.

[0018] According to some embodiments of the present invention, a control cabinet is further included, wherein a printed circuit board is arranged inside the control cabinet, and the climbing operation safety module, the grounding rod in place safety module, the emergency stop module, the readiness indication module, the power-on warning module and the safety interlock release module are arranged on the printed circuit board.

[0019] The rail transit safety interlocking device also includes a control cabinet with a printed circuit board inside. By arranging the climbing operation safety module, the grounding rod in place safety module, the emergency stop module, the readiness indication module, the power-on warning module and the safety interlock release module on the printed circuit board, the on-site status signals and action signals can be systematically integrated, and the high-voltage debugging power supply can be cut off in time when abnormal conditions and erroneous operations occur, thereby improving the safety of the debugging process.

[0020] According to some embodiments of the present invention, the control cabinet is provided with a cabinet door, and the emergency stop indicator light, the ready indicator light, and the release indicator light are arranged on the cabinet door. The control cabinet is provided with a cabinet door, and the emergency stop indicator light, the ready indicator light, and the release indicator light are arranged on the cabinet door, so that various relevant states and action signals on site can be displayed intuitively, and on-site situation indications can be provided to the debugging site staff in a timely manner, thereby meeting the safety protection requirements of the debugging site.

[0021] According to some embodiments of the present invention, it also includes a field status indicator box, which is provided with field status indicator lights, and the field status indicator lights include a climbing operation indicator light, a grounding rod in place indicator light and an emergency stop button indicator light, and the field status indicator box is electrically connected to the climbing operation safety module, the grounding rod in place safety module and the emergency stop module respectively.

[0022] The rail transit safety interlocking device also includes a field status indicator box, which is electrically connected to the climbing operation safety module, the grounding rod in place safety module and the emergency stop module respectively. By setting a climbing operation indicator light in the field status indicator box to indicate the status of the line climbing operation platform, setting a grounding rod in place indicator light to indicate the status of the line grounding rod, and setting an emergency stop button indicator light to indicate the status of the line emergency stop button, the field status of each line can be clearly displayed by setting the field status indicator lights, providing the debugging site staff with on-site situation indications.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0025] Figure 1 : is a line protection electrical schematic diagram of a rail transit safety interlocking device according to an embodiment of the present invention;

[0026] Figure 2 It is an electrical schematic diagram of the power-on warning manual-automatic switching action, the emergency stop action and the release of the safety interlock action of another embodiment of the present invention;

[0027] Figure 3 is a front view of a control cabinet according to another embodiment of the present invention;

[0028] Figure 4 It is a front view of a field status indicating box according to another embodiment of the present invention.

[0029] Reference numerals:

[0030] Climbing operation safety module 110; grounding rod in place safety module 120; emergency stop module 130; line emergency stop module 131; emergency stop indicator light 132; readiness indication module 140; readiness indicator light 141; power-on warning module 150; AC isolation knife closing module 151; DC isolation knife closing module 152; manual control module 153; manual-automatic switching switch 154; release safety interlock module 160; line release module 161; release interlock switch 162; release indicator light 16 3; stage operation indicator light 171; grounding rod in place indicator light 172; emergency stop button indicator light 173; first relay CJDDn; second relay CJJDn; third relay CJJT; fourth relay CJJTn; fifth relay GJ05; sixth relay DJ05; seventh relay CJ52; eighth relay CJ54; ninth relay ZSJ05; tenth relay CJ51; eleventh relay CJJC05; manual opening switch TZ5; manual closing switch QD5. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] The embodiment of the present invention provides a rail transit safety interlocking device, which can improve the safety of the debugging process and reduce existing safety hazards.

[0035] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0036] Reference Figure 1 and Figure 2The embodiment of the present invention provides a rail transit safety interlocking device, including a climbing operation safety module 110, a grounding rod in place safety module 120, an emergency stop module 130 and a readiness indication module 140. The climbing operation safety module 110 includes a safety iron door switch, a boarding flap switch and a first relay CJDDn for cutting off a high-voltage debugging power supply. The coils of the safety iron door switch, the boarding flap switch and the first relay CJDDn are connected in series between the live wire terminal and the neutral wire terminal of the control power supply; the grounding rod in place safety module 120 includes a grounding rod switch and a second relay CJJDn for cutting off a high-voltage debugging power supply. The coils of the grounding rod switch and the second relay CJJDn are connected in series between the live wire terminal and the neutral wire terminal of the control power supply; The stop module 130 includes a line emergency stop module 131 and a third relay CJJT for cutting off the high-voltage debugging power supply. The line emergency stop module 131 includes a plurality of emergency stop buttons and a fourth relay CJJTn. The plurality of emergency stop buttons and the coil of the fourth relay CJJTn are connected in series between the live wire and the neutral wire of the control power supply. The contacts of the fourth relay CJJTn and the coil of the third relay CJJT are connected in series between the live wire and the neutral wire of the control power supply. The ready indication module 140 includes a ready indicator light 141. The contacts of the first relay CJDDn, the contacts of the second relay CJJDn, the contacts of the fourth relay CJJTn and the ready indicator light 141 are connected in series between the live wire and the neutral wire of the control power supply.

[0037] The rail transit safety interlocking device according to the embodiment of the present invention has at least the following beneficial effects: the rail transit safety interlocking device includes a climbing operation module, a grounding rod in place safety module 120, an emergency stop module 130 and a ready indication module 140, the climbing operation safety module 110 includes a safety iron door switch, a boarding flap switch and a first relay CJDDn, by connecting the safety iron door switch, the boarding flap switch and the coil of the first relay CJDDn in series between the live wire terminal and the neutral wire terminal of the control power supply, during the line power-on process, if the climbing operation platform is abnormally opened, a protection trip signal can be output, and the first relay CJDDn Cut off the high-voltage debugging power supply; the grounding rod in place safety module 120 includes a grounding rod switch and a second relay CJJDn. By connecting the coils of the grounding rod switch and the second relay CJJDn in series between the live wire end and the neutral wire end of the control power supply, if the grounding rod is not in place, the second relay CJJDn outputs a tripping signal and cuts off the high-voltage debugging power supply; the emergency stop module 130 includes a line emergency stop module 131 and a third relay CJJT. The line emergency stop module 131 includes a plurality of emergency stop buttons and a fourth relay CJJTn. The plurality of emergency stop buttons and the coils of the fourth relay CJJTn are connected in series between the live wire end and the neutral wire end of the control power supply. In an emergency, by triggering any emergency stop button, the line emergency stop module 131 outputs a trip signal through the fourth relay CJJTn, the contact of the fourth relay CJJTn and the coil of the third relay CJJT are connected in series between the live wire terminal and the neutral wire terminal of the control power supply, and the third relay CJJT outputs a protection trip signal to the high-voltage power supply system and cuts off all high-voltage debugging power supplies; the ready indication module 140 includes a ready indicator light 141, the contact of the first relay CJDDn, the contact of the second relay CJJDn, the contact of the fourth relay CJJTn and the ready indicator light 141 are connected in series between the live wire terminal and the neutral wire terminal of the control power supply. Between the line ends, when the emergency stop button is reset, the grounding rod is in place, and the climbing work platform is closed, it indicates that all on-site conditions of the line are normal, the ready state circuit outputs a ready signal, the high voltage is turned on, and the ready indicator light 141 lights up. When a certain state on site is abnormal, the device outputs a protection trip signal; by integrating various relevant status and action signals on site during the debugging process, and electrically interlocking with the high-voltage power supply system, the high-voltage power supply can be cut off in time when an emergency occurs during the high-voltage power-on debugging process, thereby improving the safety of the debugging process, meeting the on-site protection requirements for high-voltage power-on debugging in complex environments, and reducing possible safety hazards.

[0038] By setting the climbing operation safety module 110, the high-voltage protection tripping signal of the line can be output when the fixed climbing operation platform is opened. By setting the grounding rod in place safety module 120, the grounding rod can realize the indication of the grounding status of the contact network. A number of emergency stop buttons are set on both sides of the track. In an emergency, the emergency stop button is manually triggered to output a tripping signal to the power supply system to cut off all high-voltage debugging power supplies. The rail transit safety interlocking device of the embodiment of the present invention is usually installed near the track of the debugging plant, which can solve the problem of wrong power supply when the line is not fully energized, and can ensure timely power off when potential risks and misoperations are found. When the single-line emergency stop button status, the single-line grounding rod status and the single-line climbing operation platform status are all ready, the status ready indication module 140 outputs a ready signal, and the ready indicator light 141 lights up to provide a ready status indication for the debugging site. It should be noted that a number of emergency stop buttons are provided with indicator lights, which can realize the action position indication of the emergency stop button triggered in an emergency.

[0039] like Figure 1 As shown, according to some embodiments of the present invention, it also includes a power-on warning module 150, which includes an AC isolation knife closing module 151, a DC isolation knife closing module 152, a fifth relay GJ05 for triggering a safety voltage strobe light, and a sixth relay DJ05 for triggering a power-on display sign. The AC isolation knife closing module 151 includes an AC isolation knife auxiliary switch and a seventh relay CJ52, and the DC isolation knife closing module 152 includes a DC isolation knife auxiliary switch and an eighth relay CJ54. The coils of the AC isolation knife auxiliary switch and the seventh relay CJ52 are connected in series between the live wire and the neutral wire of the control power supply, and the coils of the DC isolation knife auxiliary switch and the eighth relay CJ54 are connected in series between the live wire and the neutral wire of the control power supply.

[0040] The rail transit safety interlocking device also includes a power-on warning module 150, which includes an AC isolation knife closing module 151, a DC isolation knife closing module 152, a fifth relay GJ05 and a sixth relay DJ05. The AC isolation knife closing module 151 includes an AC isolation knife auxiliary switch and a seventh relay CJ52. The coils of the AC isolation knife auxiliary switch and the seventh relay CJ52 are connected in series between the live wire end and the neutral wire end of the control power supply. When the contact network is connected to high voltage, the AC isolation knife auxiliary switch is closed, and the seventh relay CJ52 outputs an AC power-on signal. The DC isolation knife closing module 152 includes a DC isolating knife auxiliary switch and an eighth relay CJ54. The coils of the DC isolating knife auxiliary switch and the eighth relay CJ54 are connected in series between the live wire terminal and the neutral wire terminal of the control power supply. When the DC isolating knife auxiliary switch is closed, the eighth relay CJ54 outputs a DC power-on signal. When the contact network is connected to high voltage, the fifth relay GJ05 triggers the safety voltage strobe light to light up, warning that the power is on. The sixth relay DJ05 triggers the power-on display board to display the "power on" information. When the line is energized, the power-on indication signal can be output to the site in time to serve as a power-on reminder for on-site debugging.

[0041] By setting up a power-on warning module 150, when high voltage electricity is supplied to the line contact network, the safety voltage strobe lights evenly arranged on both sides of the track light up, and the power-on display board arranged on the roof displays "power on", which can realize timely output of the power-on indication signal to the site when the line is energized. It should be noted that the power supply of the power-on display board adopts an isolation transformer, and by strengthening the grounding treatment of the power-on display board, it can effectively avoid the interference of the induced voltage on the power-on display board when the high voltage of the contact network is stopped or the pantograph is raised or lowered.

[0042] According to some embodiments of the present invention, the contacts of the seventh relay CJ52 and the coil of the fifth relay GJ05 are connected in series between the live wire terminal and the neutral wire terminal of the control power supply, the coil of the sixth relay DJ05 and the coil of the fifth relay GJ05 are connected in parallel, and the contacts of the eighth relay CJ54 and the contacts of the seventh relay CJ52 are connected in parallel.

[0043] The contacts of the seventh relay CJ52 and the coil of the fifth relay GJ05 are connected in series between the live wire and the neutral wire of the control power supply. The coil of the sixth relay DJ05 is connected in parallel with the coil of the fifth relay GJ05. When the contact network is connected to high voltage, the fifth relay GJ05 triggers the safety voltage strobe light to light up, warning that the power is on. The sixth relay DJ05 triggers the power-on display board to display the "power on" information to serve as a power-on warning for on-site debugging. The contacts of the eighth relay CJ54 and the contacts of the seventh relay CJ52 are connected in parallel. Any module of the AC isolation knife closing module 151 and the DC isolation knife closing module 152 outputs a power-on signal, which can trigger the safety voltage strobe light and the power-on display board to light up, and output the power-on indication signal to the site in time.

[0044] like Figure 1 and Figure 2 According to some embodiments of the present invention, the power-on warning module 150 also includes a manual control module 153, the manual control module 153 includes a manual-automatic switching switch 154, a ninth relay ZSJ05, a manual opening switch TZ5 and a manual closing switch QD5, the manual-automatic switching switch 154 and the coil of the ninth relay ZSJ05 are connected in series between the live wire end and the neutral wire end of the control power supply, the first contact of the ninth relay ZSJ05, the manual opening switch TZ5, the manual closing switch QD5 and the coil of the fifth relay GJ05 are connected in series between the live wire end and the neutral wire end of the control power supply, the second contact of the ninth relay ZSJ05, the contact of the seventh relay CJ52 and the coil of the fifth relay GJ05 are connected in series between the live wire end and the neutral wire end of the control power supply, and the contact of the fifth relay GJ05 is connected in parallel with the manual closing switch.

[0045] The power-on warning module 150 also includes a manual control module 153, which includes a manual-automatic switching switch 154, a ninth relay ZSJ05, a manual opening switch TZ5, and a manual closing switch QD5. The coils of the manual-automatic switching switch 154 and the ninth relay ZSJ05 are connected in series between the live wire end and the neutral wire end of the control power supply. When the manual-automatic switching switch 154 is triggered, the ninth relay ZSJ05 outputs a switching control signal, so that the power-on warning module 150 is switched from automatic control to manual control. The first The contacts, manual opening switch TZ5, manual closing switch QD5 and the coil of the fifth relay GJ05 are connected in series between the live wire and the neutral wire of the control power supply, the second contact of the ninth relay ZSJ05, the contact of the seventh relay CJ52 and the coil of the fifth relay GJ05 are connected in series between the live wire and the neutral wire of the control power supply, the contact of the fifth relay GJ05 is connected in parallel with the manual closing switch QD5, and manual control of the safety voltage strobe light and the power-on display board can be achieved by triggering the manual opening switch TZ5 and the manual closing switch QD5.

[0046] According to some embodiments of the present invention, the emergency stop module 130 also includes an emergency stop indicator light 132, which is connected in parallel to both ends of the coil of the third relay CJJT. The emergency stop module 130 includes an emergency stop indicator light 132 connected in parallel to both ends of the coil of the third relay CJJT. In an emergency, by triggering any emergency stop button, the third relay CJJT outputs a protection trip signal to the high-voltage power supply system and cuts off all high-voltage debugging power supplies. At the same time, the emergency stop indicator light 132 lights up, indicating that the emergency stop button is actuated.

[0047] like Figure 1 and Figure 2 According to some embodiments of the present invention, it also includes a safety interlock release module 160, the interlock release module includes a line release module 161 and a tenth relay CJ51 for releasing the interlock, the line release module 161 includes an interlock release switch 162 and an eleventh relay CJJC05, the coils of the interlock release switch 162 and the eleventh relay CJJC05 are connected in series between the live wire terminal and the neutral wire terminal of the control power supply, the coil of the tenth relay CJ51 and the contacts of the eleventh relay CJJC05 are connected in series between the live wire terminal and the neutral wire terminal of the control power supply, and the ready indicator light 141 is connected in parallel to both ends of the coil of the tenth relay CJ51.

[0048] The rail transit safety interlocking device also includes a safety interlock release module 160, which includes a line release module 161 and a tenth relay CJ51. The line release module 161 includes an interlock release switch 162 and an eleventh relay CJJC05. The coils of the interlock release switch 162 and the eleventh relay CJJC05 are connected in series. When the device fails or is undergoing maintenance, the interlock release switch 162 is triggered, and the eleventh relay CJJC05 outputs a release signal. The coil of the tenth relay CJ51 and the contacts of the eleventh relay CJJC05 are connected in series between the live wire and the neutral wire of the control power supply. The interlock is released by the tenth relay CJ51, and the safety interlock device can be actively cut off. The ready indicator light 141 is connected in parallel to both ends of the coil of the tenth relay CJ51. By manually releasing the interlock, the ready indicator light 141 also lights up at the same time.

[0049] According to some embodiments of the present invention, the release safety interlock module 160 also includes a release indicator light 163, which is connected in parallel to both ends of the coil of the eleventh relay CJJC05. The release safety interlock module 160 also includes a release indicator light 163 connected in parallel to both ends of the coil of the eleventh relay CJJC05. When the device fails or is undergoing maintenance, the release interlock switch 162 can be triggered, and the release interlock signal is output through the eleventh relay CJJC05. The release indicator light 163 also lights up at the same time, which can indicate the release of the safety interlock action.

[0050] like Figure 3As shown, according to some embodiments of the present invention, a control cabinet is further included, a printed circuit board is arranged inside the control cabinet, and a climbing operation safety module 110, a grounding rod in place safety module 120, an emergency stop module 130, a ready indication module 140, a power-on warning module 150 and a safety interlock release module 160 are arranged on the printed circuit board.

[0051] The rail transit safety interlocking device also includes a control cabinet, which has a printed circuit board inside. By arranging the climbing operation safety module 110, the grounding rod in place safety module 120, the emergency stop module 130, the readiness indication module 140, the power-on warning module 150 and the safety interlock release module 160 on the printed circuit board, the on-site status signals and action signals can be systematically integrated, and the high-voltage debugging power supply can be cut off in time when abnormal conditions and erroneous operations occur, thereby improving the safety of the debugging process.

[0052] According to some embodiments of the present invention, the control cabinet is provided with a cabinet door, and the emergency stop indicator light 132, the ready indicator light 141 and the release indicator light 163 are arranged on the cabinet door. The control cabinet is provided with a cabinet door, and the emergency stop indicator light 132, the ready indicator light 141 and the release indicator light 163 are arranged on the cabinet door, which can intuitively display various relevant states and action signals on site, provide on-site situation indications to the debugging site staff in a timely manner, and meet the safety protection requirements of the debugging site.

[0053] like Figure 4 As shown, according to some embodiments of the present invention, it also includes a field status indicator box, which is provided with field status indicator lights. The field status indicator lights include a climbing operation indicator light 171, a grounding rod in place indicator light 172 and an emergency stop button indicator light 173. The field status indicator box is electrically connected to the climbing operation safety module 110, the grounding rod in place safety module 120 and the emergency stop module 130, respectively.

[0054] The rail transit safety interlocking device also includes a field status indicator box, which is electrically connected to the climbing operation safety module 110, the grounding rod in place safety module 120 and the emergency stop module 130 respectively. By setting a climbing operation indicator light 171 in the field status indicator box to indicate the status of the line climbing operation platform, setting a grounding rod in place indicator light 172 to indicate the status of the line grounding rod, and setting an emergency stop button indicator light 173 to indicate the status of the line emergency stop button, by setting the field status indicator lights, the field status of each line can be clearly displayed, providing the debugging site staff with field situation indications.

[0055] The rail transit safety interlocking device of the embodiment of the present invention can improve the safety of the debugging process and reduce the existing safety hazards. When the device needs to be put into operation, it can perform protection actions. When the emergency stop button is reset, the grounding rod is in place, and the climbing work platform is closed, the device outputs a line ready signal and runs through high voltage electricity. When an abnormal situation occurs on site, the emergency stop buttons on both sides of the track are triggered, and the device outputs a protection tripping signal to cut off all high voltage power supplies through the power supply system. During the power-on process, when the fixed climbing work platform is abnormally opened, the device outputs a line high-voltage protection tripping signal. When the grounding rod is not in place, the device outputs a protection tripping signal, and the contact network When high voltage electricity is turned on, the safety voltage strobe lights evenly distributed on both sides of the track light up, and the power-on display board on the roof shows "powered on". The line safety voltage strobe lights and the power-on display board are manually switched on and off through the manual-automatic switching switch 154, the manual opening switch TZ5 and the manual closing switch QD5. When the device fails or is under maintenance, the interlock can be actively removed by releasing the interlock switch 162. This device integrates various relevant status and action signals on site during the debugging process, and electrically interlocks with the power supply system. When abnormal conditions and misoperations occur, the high voltage power supply can be cut off in time, which greatly improves the safety protection capability of the debugging site and reduces possible safety hazards.

[0056] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A rail transit safety interlocking device, characterized in that: include: A climbing operation safety module, the climbing operation safety module comprises a safety iron door switch, a boarding flap switch and a first relay for cutting off the high-voltage debugging power supply, the safety iron door switch, the boarding flap switch and the coil of the first relay are connected in series between the live wire terminal and the neutral wire terminal of the control power supply; A grounding rod in place safety module, the grounding rod in place safety module comprising a grounding rod switch and a second relay for cutting off the high voltage debugging power supply, the grounding rod switch and the coil of the second relay are connected in series between the live wire terminal and the neutral wire terminal of the control power supply; An emergency stop module, the emergency stop module includes a line emergency stop module and a third relay for cutting off the high-voltage debugging power supply, the line emergency stop module includes a plurality of emergency stop buttons and a fourth relay, the plurality of emergency stop buttons and the coil of the fourth relay are connected in series between the live wire end and the neutral wire end of the control power supply, and the contact of the fourth relay and the coil of the third relay are connected in series between the live wire end and the neutral wire end of the control power supply; A ready indication module, the ready indication module comprising a ready indicator light, the contact of the first relay, the contact of the second relay, the contact of the fourth relay and the ready indicator light are connected in series between the live wire terminal and the neutral wire terminal of the control power supply; A power-on warning module, the power-on warning module includes an AC isolation knife closing module, a DC isolation knife closing module, a fifth relay for triggering a safety voltage strobe light, and a sixth relay for triggering a power-on display board.

2. The rail transit safety interlocking device according to claim 1, characterized in that: The AC isolation knife closing module includes an AC isolation knife auxiliary switch and a seventh relay, and the DC isolation knife closing module includes a DC isolation knife auxiliary switch and an eighth relay. The coils of the AC isolation knife auxiliary switch and the seventh relay are connected in series between the live wire end and the neutral wire end of the control power supply, and the coils of the DC isolation knife auxiliary switch and the eighth relay are connected in series between the live wire end and the neutral wire end of the control power supply.

3. The rail transit safety interlocking device according to claim 2, characterized in that: The contact of the seventh relay and the coil of the fifth relay are connected in series between the live wire terminal and the neutral wire terminal of the control power supply, the coil of the sixth relay and the coil of the fifth relay are connected in parallel, and the contact of the eighth relay and the contact of the seventh relay are connected in parallel.

4. The rail transit safety interlocking device according to claim 3, characterized in that: The power-on warning module also includes a manual control module, which includes a manual-automatic switching switch, a ninth relay, a manual opening switch and a manual closing switch. The manual-automatic switching switch and the coil of the ninth relay are connected in series between the live wire end and the neutral wire end of the control power supply. The first contact of the ninth relay, the manual opening switch, the manual closing switch and the coil of the fifth relay are connected in series between the live wire end and the neutral wire end of the control power supply. The second contact of the ninth relay, the contact of the seventh relay and the coil of the fifth relay are connected in series between the live wire end and the neutral wire end of the control power supply. The contact of the fifth relay is connected in parallel with the manual closing switch.

5. The rail transit safety interlocking device according to claim 2, characterized in that: The emergency stop module also includes an emergency stop indicator light, which is connected in parallel to both ends of the coil of the third relay.

6. The rail transit safety interlocking device according to claim 5, characterized in that: It also includes a safety interlock release module, which includes a line release module and a tenth relay for releasing the interlock, the line release module includes an interlock release switch and an eleventh relay, the interlock release switch and the coil of the eleventh relay are connected in series between the live wire end and the neutral wire end of the control power supply, the coil of the tenth relay and the contact of the eleventh relay are connected in series between the live wire end and the neutral wire end of the control power supply, and the ready indicator light is connected in parallel to both ends of the coil of the tenth relay.

7. The rail transit safety interlocking device according to claim 6, characterized in that: The release safety interlock module further includes a release indicator light, which is connected in parallel to both ends of the coil of the eleventh relay.

8. The rail transit safety interlocking device according to claim 7, characterized in that: It also includes a control cabinet, in which a printed circuit board is arranged, and the climbing operation safety module, the grounding rod in place safety module, the emergency stop module, the readiness indication module, the power-on warning module and the safety interlock release module are arranged on the printed circuit board.

9. The rail transit safety interlocking device according to claim 8, characterized in that: The control cabinet is provided with a cabinet door, and the emergency stop indicator light, the ready indicator light and the release indicator light are arranged on the cabinet door.

10. The rail transit safety interlocking device according to claim 1, characterized in that: It also includes a field status indicator box, which is provided with field status indicator lights. The field status indicator lights include a climbing operation indicator light, a grounding rod in place indicator light and an emergency stop button indicator light. The field status indicator box is electrically connected to the climbing operation safety module, the grounding rod in place safety module and the emergency stop module respectively.

Images