RU2288109C1 - Door interlock of public transport vehicles - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention is designed for locking doors of public transport vehicles, for instance, street cars, at parking. Proposed door interlock contains door opening and closing mechanism in form of drive, rocker, tie-rods, levers, and locking device. Locking device is made in form of interlock strip first end of which is hinge-mounted on axle of turning lever of one of door wings, and other end is provided with oval slot and is installed on axle of rocker and tie-rod of other door wing. With doors in working position, second end of interlock strip is installed in retainer. Said retainer is installed on tie-rod fastening interlock strip and is made of elastic material.

EFFECT: improved reliability and convenience in operation of proposed door interlock.

2 cl, 2 dwg

Description

The invention relates to the field of engineering and is intended to lock the doors of public transport, such as trams in long-term parking.

A device is known that allows you to close the doors of a T-3 tram car when it lags (see "Tram cars", authors M. D. Ivanov et al., "Transport", Moscow, 1977, p. 15), in the form of loops located down on the outside of the middle doorways. The doors are locked with a padlock.

This design is unreliable, because constipation is available for hacking.

The locking device of the ZIU-92B trolleybus is also known (see L.Ya. Kogan, E.E. Koryagina, I.A. Belostotsky "Design and operation of a trolleybus", "Higher School", Moscow, 1978, p. 25, fig. 16), consisting of a housing, a slider with a handle, a cotter pin, washers, springs. The middle and rear doors are closed from the passenger compartment with a locking device located in the casings of the door mechanisms. Locking is carried out by lowering the slide and fixing the door roller in the guides.

The door mechanism is electric with remote control from the driver's cab, mounted in a casing above the doorways and closed by a hatch. The drive consists of a motor connected by a soft coupling to the gearbox. Opening and closing is carried out by means of the rocker arm, rods and levers fixed on the axes of the door leaves.

Locking devices are located in the cabin of the trolley, but are not reliable enough, because when force is applied to the door leaves, the door rollers scroll, the gap between the leaves widens, and therefore, unauthorized entry into the passenger compartment of the trolley bus is possible.

The problem to which the invention is directed, is to increase the reliability and ease of operation of the locking device of the doors of public transport.

The claimed technical result is achieved by the fact that in the mechanism for opening and closing the doors of the vehicle, containing the drive, rocker, traction, levers and locking device:

- the locking device is made in the form of a locking bar, the first end of which is pivotally mounted on the axis of the lever of rotation of one of the door leaves, and the second has an oval groove and is mounted on the axis of the rocker arm and the thrust of the other door leaf;

- in the working position of the vehicle doors, the second end of the locking bar is installed in the latch;

- the latch is mounted on the tie rod of the locking bar;

- the latch is made of elastic material.

The implementation of the locking device in the form of a locking bar, the first end of which is pivotally mounted on the axis of the lever of rotation of one of the door leaves, and the second has an oval groove and is mounted on the axis of the rocker arm and the thrust of the other door leaf, allows you to rigidly lock the traction and levers of the door mechanism when opening.

Installation in the working position of the vehicle of the second end of the locking bar in the latch, located on an adjustable rod, eliminates its arbitrary position during operation of the doors.

The implementation of the latch of elastic material facilitates installation on an adjustable traction and facilitates the fixation of the locking bar.

The essence of the proposed solution is illustrated by drawings, where:

figure 1 is a General view of the mechanism for opening and closing doors and a locking device;

figure 2. - top view in figure 1.

The locking device of the door leaves 1, 2 (Fig. 1) of public transport, for example, a tram, is installed on the mechanism for opening and closing the doors 3, located in the casing 4 (Fig. 2) above the doorways and closed by a hatch (not shown in Fig.). The drive consists of a gear motor 5. Opening and closing is carried out by means of a rocker 6, rods 7 and levers 8, 9, mounted on the axes 10 of the door leaves 1, 2. The locking device of the doors contains a locking bar 11, fixed by the first end pivotally on the axis 12 of the lever 8 and the rod 7 for turning the door leaf 1, and the second end has an oval groove 13 and is mounted on the axis 14 of the rocker arm 6 for attaching the rod 7 of the other door leaf. Shaft 15 - the shaft of the gear motor 5, on which the beam is mounted 6. In the working position of the doors, the second end of the locking plate 11 is installed in the latch 16. The latch 16 is mounted on the adjusting rod 7 of the rotation mechanism of the door leaf 1.2 and is made of elastic material.

Door drive mechanisms are closed by over-door covers 4 of steel sheets 1 mm thick. The casing 4 of the welded structure has a hatch for servicing, adjusting, repairing the mechanism and locking the doors in the closed position in sediment or storage.

The device operates as follows.

When opening and closing the leaves 1, 2 (Fig. 1) of the doors, the torque from the gear motor 5 is transmitted to the beam 6 (Fig. 2). The rods 7 of both leaves 1, 2, making a reciprocating movement, turn the levers 8, 9 and the axis, thereby ensuring the closing and opening of the leaves 1, 2 of the door. The lengths of the rods 7 are adjusted so that the doors open and close completely.

When the tram is lagged or stored, when the doors are completely closed, the locking bar 11 is manually moved from the groove of the retainer 16 to the axis 14 of the rocker arm 6. The oval groove 13 is necessary to compensate for the change in size between the axles of the rocker arm 6 and the lever 8. The doors are locked.

For the working position of the doors, the locking bar 11 is manually transferred to the elastic retainer 16 mounted on the adjustment rod 7.

The casing 4 in any position of the door is locked with a key, which is located at the driver. Access to the locking device is denied.

Claims (2)

1. The locking device of the doors of public transport, containing a mechanism for opening and closing doors in the form of a drive, rocker, rods, levers and a locking device, characterized in that the locking device is made in the form of a locking bar, the first end of which is pivotally mounted on the axis of the rotation lever of one of the door leaf, and the second has an oval groove and is mounted on the axis of the rocker arm and the thrust of the other door leaf, and in the working position of the doors, the second end of the locking bar is installed in the latch. 2. The locking device according to claim 1, characterized in that the latch is mounted on the tie rod of the locking bar and is made of elastic material.

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