RU175355U1 - Control device for closing pneumatic cylinders of double-leaf sliding doors of a passenger car - Google Patents

Abstract

The utility model relates to a system for controlling the closing of a double-wing sliding door of a vehicle by a pneumatic drive, mainly a passenger car, in particular a metro car. The control device for closing a double-wing sliding door of a passenger car with pneumatic cylinders has limit electric switches that operate when each pair of leaves is closed; an electric circuit connecting in series all the trailer electric switches of the car with a relay for controlling the closing of all doors, each pneumatic cylinder having an annular magnet mounted on the piston, and a piston position sensor on the cylinder body that interacts with the magnet when the rod is extended until each door is extended to fully close and all the piston position sensors are connected in series with each other and with the electrical circuit of the limit electric switches, which has an additional closing control relay in doors, wires laid under the inner lining of the passenger car. Improved reliability of diagnosis of the closed position of the sliding door of the passenger car. 2 of FIG.

Description

The utility model relates to a system for controlling the closing of a double-wing sliding door of a vehicle by a pneumatic drive, mainly a passenger car, in particular a metro car.

It is known the invention of closing the vehicle door (vehicle) control systems, driven by an electric drive (patent US №6046510 from 20.03.1998), comprising electrical contacts mounted in the vehicle body and the door and are electrically isolated induction coil contactlessly interacting when closing the door and are additional means signaling the end of door closure.

The disadvantage of this system is the possibility of extraneous influence on the operation of the door closing control system by entering between the contacts a foreign object that signals the operation of contacts when the door is open.

The invention is known of the pneumatic drive of motor vehicle doors with a slit magnetically sensitive sensor (patent RU No. 2313457 of 09/20/2005), the pneumatic cylinder of which has a magnet with a groove mounted on the body, and a steel rail with holes fixed to the rod with a bracket, and an electronic unit connected with a sensor for reading information. The steel rail moves freely in the groove of the magnet and when the holes of the rail pass through the magnetic electronic unit, it receives signals about the position of the rail, stem and door, including the state of the closed door.

The disadvantage of such a pneumatic door drive is the complexity of the sensor design and the redundancy of information received from the sensor by the monitoring system, since for the metro doors, the signal arriving in the closed state of the door is sufficient.

The electro-pneumatic control system for the pneumatic drive of sliding double-leaf doors of a subway car is known, which has limit switches signaling the closing of doors (Karpov, OP. Summary for the driver under the program "Pneumatic equipment of cars 81-714, 81-717". - Training and Production Center Moscow Metro, 2013, p. 57).

The disadvantage of this system is that it provides mechanical contact between the door leaves and the limit switches, and, therefore, it is possible to access the switches to press them and simulate the closing state while keeping the door open.

Double-acting pneumatic cylinders with magnetic piston position sensors are known (http://books.camozzi.com/8.5RU/).

The technical problem solved by the utility model is to increase the reliability of diagnostics of the closed position of the sliding doors of a passenger car.

The technical problem is solved in the design of a device for controlling the closing of double-leaf sliding doors of a passenger carriage by pneumatic cylinders, having: limit electric switches that operate when each pair of leaves is closed; an electric circuit connecting in series all the trailer electric switches of the car with a relay for controlling the closing of all doors, each pneumatic cylinder having an annular magnet mounted on the piston, and a piston position sensor on the cylinder body that interacts with the magnet when the rod is extended until each door is extended to fully close while all the piston position sensors are connected in series with each other and with an additional relay for controlling the closing of all doors with wires laid under the inner skin passenger car, as well as with the electrical circuit of the limit switches.

The technical effect - improving the reliability of diagnostics of the closed position of the sliding doors of a passenger carriage - is achieved by the following set of distinctive features: each pneumatic cylinder has a ring magnet mounted on the piston, and on the cylinder body there is a piston position sensor interacting with the magnet when the rod is extended until each door is extended until the door is fully closed , while all the piston position sensors are connected in series with each other and with an additional relay to control the closing of all doors with wires, laid under the inner lining of the passenger carriage, as well as with the electrical circuit of the limit switches.

This set of distinguishing features of the utility model was not found in the process of the patent information research, therefore, the utility model meets the criterion of "novelty."

In FIG. 1 shows the design of a passenger car with a pneumatic drive for double-leaf sliding doors (inside view).

In FIG. 2 shows an electrical diagram of a control system for closing a pneumatic drive of double-leaf sliding doors of a passenger car.

The control device for closing pneumatic cylinders 1 of double-leaf sliding doors 2 of a passenger car 3 (Fig. 1, 2) has: limit electric switches 4, which operate when the closed position of each pair of leaves 2 a and 2 b ; an electric circuit 5 (Fig. 2), connecting in series all the end electric switches 4 of the car 3, having a relay 6 for controlling the closing of all doors 2, each pneumatic cylinder 1 having an annular magnet 8 mounted on the piston 7, and on the cylinder 9 body 9 a piston 7 position sensor 10 interacting with the magnet 8 with the rod 11 extended until each door 2 is completely closed, and all the piston 7 position sensors 10 are connected in series with each other and with an additional relay 12 for controlling the closing of all doors with 2 wires 13, lay nnym under inner skin 14 (FIG. 1) of the passenger vehicle 3, as well as with electrical circuit breakers 4, 5 end.

Description of the work of the existing and proposed control system.

The existing device for controlling the closing by pneumatic cylinders 1 of the doors 2 of the passenger car 3 provides for the presence of only eight (according to the number of doors 2) limit electric switches 4 of the closed position of the doors 2 of the car 3, located above each door 2, interconnected in series in an electric circuit 5. When closing of all the shutters 2 a and 2 b of the doors 2 of the car 3, the circuit closes, the relay 6 controls the closing of the doors 2, which indicates that all doors 2 of the car 3 are closed. When the door 2 is open, it is possible for outsiders to press the terminal electric switch 4, which leads to its false operation and the relay 6 control closed doors 2, allowing the train to move with the open door 2.

Modernization of the existing door closing control device 2 allows to ensure its reliable protection against unauthorized access, increasing the reliability of diagnostics of the closed position of the sliding doors of a passenger car.

Safety is ensured by the introduction of an additional relay 12 (for example, solid-state) installed in series in an electric circuit 5 of eight standard limit electric switches 4, and an additional eight magnetic (inductive, capacitive, magneto-resistive, Hall sensors, AMR and GMR ) series-connected sensors 10 , each of which is installed on the housing 9 of each pneumatic cylinder 1 of the door 2.

A feature of this device is the lack of access by unauthorized persons to the sensors 10 (hidden under the casing 14 of the car 3) of the position of the piston 7 and the relay 12 installed in the control cabinet (not shown).

To generate a signal about closing doors 2, eight standard limit electric switches 4 located above the doors 2, eight magnetic sensors 10 installed on the bodies 9 of the cylinder 1 of the door drive 2, and relay 6 must be activated. If one of the limit electric switches 4 or sensors 10 did not work, circuit 5 does not close, and the signal to relay 12 controls closing all doors 2 does not arrive. The running of the train with open door 2 is prevented.

Claims (1)

A control device for closing pneumatic cylinders of double-leaf sliding doors of a passenger carriage having end electric switches that operate when each pair of leaves is closed; an electric circuit connecting in series all the trailer electric switches of the car, having a relay for controlling the closing of all doors, characterized in that each pneumatic cylinder has a ring magnet mounted on the piston, and on the cylinder body there is a piston position sensor that interacts with the magnet when each is extended until each is fully closed door stock, while all the piston position sensors are connected in series with each other and with the electrical circuit of the limit electric switches, having an additional relay control the closing of all doors, wires laid under the inner lining of the passenger car.