CN107901920B

CN107901920B - Platform compensation device

Info

Publication number: CN107901920B
Application number: CN201711089195.1A
Authority: CN
Inventors: 张龙; 王玥; 王贵东; 岳晓峰; 高越
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2017-11-08
Filing date: 2017-11-08
Publication date: 2020-03-06
Anticipated expiration: 2037-11-08
Also published as: CN107901920A

Abstract

The utility model provides a novel platform compensation arrangement, including compensation mechanism and footboard, compensation mechanism adopts contact direction formula sliding fit with the footboard, compensation mechanism includes the activity footboard, the linear actuator, the actuating lever, direct current motor, the electromagnetic lock, the signal control box, isolator, wire rope conversion unit, unblock wire rope, locking wire rope, the locking round pin, the mechanism bottom plate, vehicle wire rope, the electromagnetic lock, the signal control box is installed on the mechanism bottom plate, the signal control box is used for receiving the vehicle and opens or the shrink signal for compensation mechanism output, and give the electromagnetic lock through hard-line mode transmission command, realize the mechanical type locking and the unblock function with the activity footboard, direct current motor passes through the cooperation mode of gear grafting and is connected and cooperates with the linear actuator, the linear actuator is installed on the mechanism bottom plate, and be connected with the activity footboard through the connecting pin. The invention saves the operation cost; unequal gaps between the pedals and the platform are completely compensated, and the boarding and disembarking safety of passengers, especially disabled people, is improved; the maintenance is convenient, and the maintenance cost and the maintenance period are reduced.

Description

Platform compensation device

Technical Field

The invention relates to a platform pedal of a railway vehicle, in particular to a platform compensation device for compensating a gap between a platform and the pedal.

Background

With the development of society, urban rail vehicles have become the first choice for people to go out. The safety and comfort of passengers, especially disabled people, getting on and off the vehicle are more and more valued by the vehicle operation units at home and abroad. Due to the restriction of vehicle clearance, unequal intervals exist between the pedals and the platform, and certain influence is caused on the safety and the comfort of passengers, particularly disabled people for getting on and off the bus.

In order to make up for the gap between the pedal and the platform, there are two kinds of platform compensation devices for domestic and foreign city railway vehicles, which are manual type and electric type. The manual type platform compensation device is a transition pedal, when a needed passenger is inconvenient to get on or off the train, a crew places the transition pedal between the platform and the pedal to make up the gap, so that the passenger can get on or off the train conveniently. The device needs to be manually placed and removed, so that the labor cost is increased; the operation cycle is long, and the vehicle operation is influenced. The electric platform compensation device mainly takes a rotary type as a main part, namely a set of rotating mechanism is arranged at the lower part of the pedal, and the movable pedal for compensating the gap extends out through the rotating mechanism to fill the gap between the side door pedal and the platform. The device occupies a large space and has great influence on the strength of a vehicle body and the arrangement of equipment under the vehicle; the extending distance of the movable pedal is not adjustable, and the gap between the platform and the pedal cannot be completely compensated; after the movable pedal extends out, the side door pedal and the movable pedal have larger steps, which brings inconvenience for the disabled who takes the wheelchair to get on or off the vehicle. Therefore, in order to save the operation cost and improve the safety and comfort of passengers, especially the disabled, getting on and off the bus, a novel platform compensation device is urgently needed to overcome the defects of the existing device.

Disclosure of Invention

The invention aims to provide a platform compensation device which is adjustable in expansion, small in occupied space, light in weight, suitable for the passage of a wheelchair for the disabled and convenient to maintain.

In order to achieve the purpose, the invention designs a novel platform compensation device, which comprises a compensation mechanism and a pedal, wherein the compensation mechanism and the pedal are in contact guiding type sliding fit; wherein:

the compensation mechanism comprises a telescopic mechanism of the movable pedal and a locking mechanism of the movable pedal, the telescopic mechanism of the movable pedal comprises the movable pedal, a linear driver, a driving rod, a direct current motor, a signal control box and a mechanism bottom plate, the signal control box and the linear driver are arranged on the mechanism bottom plate, the signal control box is used for receiving expansion or contraction signals output by a vehicle to the compensation mechanism, the direct current motor is connected and matched with the linear driver in a matching mode of gear insertion, and the driving rod of the linear driver is connected with the movable pedal through a connecting pin, so that the telescopic function of the movable pedal is realized;

the locking mechanism of the movable pedal comprises an electromagnetic lock, a lock in-place switch, a close in-place trigger rod and a close in-place switch, the electromagnetic lock is installed on a mechanism bottom plate, an electromagnetic lock pin is connected with the lock in-place switch in a connecting rod mode, the close in-place trigger rod is installed on the movable pedal, when a vehicle outputs an expansion or contraction signal to the compensation device, a signal control box transmits a command to the electromagnetic lock in a hard wire mode after receiving the signal, the electromagnetic lock contracts or expands to achieve mechanical locking and unlocking functions of the movable pedal, the lock in-place switch and the close in-place switch are activated, the signal control box outputs a contraction completion working signal, and the vehicle is started.

In order to prevent the normal operation of the vehicle from being affected when the compensation mechanism breaks down, an isolation mechanism is designed on the back of the movable pedal and comprises an isolation switch, a steel wire rope conversion unit, an unlocking steel wire rope, a locking pin, a vehicle steel wire rope and a connecting pin, the vehicle steel wire rope is connected with the steel wire rope conversion unit, the steel wire rope conversion unit is respectively connected with the unlocking steel wire rope and the locking steel wire rope, the locking steel wire rope is provided with the locking pin, and the unlocking steel wire rope is connected with the.

The invention has the advantages and positive effects that:

(1) the gap between the pedal and the platform is electrically compensated, so that the operation cost is saved;

(2) unequal gaps between the pedals and the platform are completely compensated, and the boarding and disembarking safety of passengers, especially disabled people, is improved;

(3) the requirement of American with disabilitides Act (ADA for short) is met, and the getting-on and getting-off comfortableness of passengers, especially the disabled, is improved;

(4) the maintenance is convenient, and the maintenance cost and the maintenance period are reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a positive axial side of the compensating mechanism;

FIG. 3 is a schematic top view of the compensation mechanism from the rear;

FIG. 4 is a schematic top view of the pedal from the rear;

fig. 5 is a schematic view of the station compensating apparatus shrinking;

fig. 6 is a schematic expanded view of the station compensating device.

Detailed Description

Referring to fig. 1, 2 and 3, the embodiment of the invention comprises a compensation mechanism 1 and a pedal 2, wherein the compensation mechanism and the pedal are in contact guiding type sliding fit.

The compensation mechanism comprises a movable pedal 101, a linear driver 102, a driving rod 103, a direct current motor 104, an electromagnetic lock 105, a signal control box 106, an isolating switch 107, a steel wire rope conversion unit 108, an unlocking steel wire rope 109, a locking steel wire rope 110, a locking pin 111, a mechanism bottom plate 112, a vehicle steel wire rope 113, a gear 114, a connecting pin 115, a compensation mechanism mounting seat 116, a lock in-place switch 117, a close in-place trigger rod 118 and a close in-place switch 119, wherein the electromagnetic lock 105 and the signal control box 106 are mounted on the mechanism bottom plate 112, when a vehicle outputs an expansion or contraction signal to the compensation mechanism, the signal control box 106 receives the signal and transmits a command to the electromagnetic lock 105 in a hard wire mode, and the electromagnetic lock contracts or expands to realize the mechanical locking and unlocking functions of the movable pedal 101. The dc motor 104 is connected and engaged with the linear actuator 102 by means of a gear 114, which is mounted on the mechanism base plate 112 and connected to the movable pedal 101 by means of a connecting pin 115. When the direct current motor receives the command of the signal control box, the gear 114 is driven to rotate, the linear driver 102 converts the rotation motion of the gear into the linear motion of the driving rod inside the linear driver, and the driving rod 103 and the movable pedal 101 adopt the matching mode of the connecting pin 115, so that the movable pedal 101 and the driving rod 103 do linear motion together, and the telescopic function of the movable pedal 101 is realized.

The compensation mechanism is controlled by a vehicle control unit and is driven by a direct current motor 104 to realize the extension and contraction of the movable pedal 101. During the deployment of the movable pedal, when an obstacle is sensed at the upper and front portions thereof, the motor current will exceed a preset value, the dc motor is turned off, and the movable pedal 101 will immediately stop moving without repeated cycles.

Referring to fig. 4, the design of the pedal meets the requirement of the american with Disabilities Act (ADA for short), the requirement that the maximum step size does not exceed 6.4mm and the maximum gradient does not exceed 1:2 is realized, and the safety and the comfort of passengers, particularly the disabled, for getting on and off the vehicle are improved. 6 mount pads 201 in footboard lower part pass through 6 bolts and install in automobile body threshold upper portion, and after two parts installation, 4 nylon guide blocks 202 in footboard lower part and 4 slides 203 that compensation mechanism upper portion reserved are laminated.

The compensating mechanism mounting seat 116 is mounted on the car body underframe through 4 bolts, the 6 mounting seats 201 on the lower part of the pedal are mounted on the upper part of the car body doorsill through 6 bolts, and after the two parts are mounted, the 4 nylon guide blocks 202 on the lower part of the pedal are attached to the 4 slideways 203 reserved on the upper part of the compensating mechanism to realize contact guide type sliding fit. When the movable pedal is in a contraction state, the compensation mechanism plays a role in supporting the pedal; when the movable pedal is unfolded, the guide block at the lower part of the pedal plays a role in guiding the unfolding motion of the movable pedal; when the movable pedal is completely unfolded, the compensation mechanism plays a supporting role for the pedal.

Referring to fig. 2, 3, 5 and 6, after the compensation mechanism is retracted, the pin of the electromagnetic lock 105 is extended to mechanically lock with the compensation mechanism, and at this time, the pin of the electromagnetic lock 105 pulls the lock-in-place switch 117 through a link form, and the lock-in-place switch 117 installed on the mechanism bottom plate is activated. When the movable pedal 101 is completely contracted and closed, the close-in-place trigger rod 118 of the movable pedal 101 activates the close-in-place switch 119 arranged on the mechanism bottom plate, and when the lock-in-place switch 117 and the close-in-place switch 119 are both activated, the compensation mechanism outputs a signal for finishing the contraction work of the compensation mechanism to the vehicle through the signal control box 106, and the vehicle can be started.

When the compensating mechanism breaks down, the device is isolated in order not to influence the normal operation of the vehicle. The vehicle steel wire rope 113 is connected with the steel wire rope conversion unit 108 in a threaded connection mode, the isolation compensation device is divided into two steps, firstly, the vehicle steel wire rope 113 is pulled, the steel wire rope conversion unit 108 transmits force to the unlocking steel wire rope 109 in the compensation mechanism, the steel wire rope extracts a connecting pin 115 between the movable pedal and the driving rod, and therefore the movable pedal 101 is not driven by the linear driver 102 to work; then the vehicle cable 113 is pushed, the cable conversion unit 108 transmits force to the locking cable 110 inside the compensation device, and the extended locking pin 111 of the cable locks the movable pedal 101 mechanically. Through the two steps, the electrical and mechanical isolation of the compensation mechanism is achieved.

The invention can meet the requirement of 15-minute disassembly, and saves the maintenance cost and the maintenance period of the platform compensation device.

Claims

1. A platform compensation device comprises a compensation mechanism and a pedal, wherein the compensation mechanism and the pedal are in contact guiding type sliding fit; wherein:

the locking mechanism of the movable pedal comprises an electromagnetic lock, a lock in-place switch, a close in-place trigger rod and a close in-place switch, the electromagnetic lock is arranged on a mechanism bottom plate, a lock pin of the electromagnetic lock is connected with the lock in-place switch in a connecting rod mode, the close in-place trigger rod is arranged on the movable pedal, when a vehicle outputs an expansion or contraction signal to the compensating device, a signal control box receives the signal and transmits a command to the electromagnetic lock in a hard wire mode, the electromagnetic lock contracts or expands to realize the mechanical locking and unlocking functions of the movable pedal, the lock in-place switch and the close in-place switch are activated, the signal control box outputs a contraction completion working signal, and the vehicle is started;

the back of the movable pedal is provided with an isolation mechanism which comprises an isolation switch, a steel wire rope conversion unit, an unlocking steel wire rope, a locking pin, a vehicle steel wire rope and a connecting pin, wherein the vehicle steel wire rope is connected with the steel wire rope conversion unit, the steel wire rope conversion unit is respectively connected with the unlocking steel wire rope and the locking steel wire rope, the locking steel wire rope is provided with the locking pin, and the unlocking steel wire rope is connected with the connecting pin.