CN2438791Y

CN2438791Y - Subway station emergency door unlocking mechanism

Info

Publication number: CN2438791Y
Application number: CN 00247072
Authority: CN
Inventors: 熊建明; 张宏; 陈海辉; 杨丽杰; 严志军; 王慧珍; 彭海龙; 苏武强; 王珩; 廖斌
Original assignee: China Fangda Group Co Ltd
Current assignee: China Fangda Group Co Ltd
Priority date: 2000-08-30
Filing date: 2000-08-30
Publication date: 2001-07-11
Anticipated expiration: 2010-08-30

Abstract

The utility model relates to a subway station emergency door unlocking mechanism which comprises a lock pin, a key unlocking mechanism and a push rod unlocking mechanism, wherein, the key unlocking mechanism comprises a lock seat, a lock shaft and a lock core eccentric wheel; the push rod unlocking mechanism comprises a push rod, a shaft pin, a pin bush, an eccentric wheel, a pressing plate and a slide block; the lock pin is fixed on an upright post. When the utility model is locked, the lock pin extends into a pin hole on the slide block and a cap of the lock pin is buckled with the pressing plate; when the utility model is unlocked, the push rod is pressed down at the side of a track to drive the shaft pin and the eccentric wheel to rotate to support the slide block and the pressing plate upwards so as to make the pressing plate and the cap of the lock pin staggered in order to unlock, and the escape function of the emergency door is satisfied in emergency; or a special key is sheathed on the lock shaft to rotate at the side of a platform to drive the lock core eccentric wheel to rotate to support the slide block and the pressing plate upwards in order to unlock.

Description

Subway platform escape door release mechanism

The utility model relates to a kind of release mechanism that is used for subway platform screen door escape door.

Traditional fireproofing door lock release mechanism general adopt key combined and handle is unblanked, consider the Safety Design requirement of fireproofing door lock, general inside and outside handle, the single tongue structure of adopting, the inner rotation part of handle links to each other with spring with the lock core assembly, the other end of spring is connected with locking bolt or dead bolt, the rotation of handle and lock core assembly causes in the axial direction flexible of spring, thereby lock is opened and closed, and utilizes the elastic force of spring that locking bolt or dead bolt are resetted after unblanking.Escape door in the subway platform screen door is made of doorframe and door body glass etc., in design, require emergent door lock on the column of door track body side, and the passenger who requires in the platform direction can not at will open escape door, have only subway staff available dedicated key to open, satisfy safety requirements to escape door, simultaneously in train rail one side, anyone can open emergent door lock, has realized the escaping function when escape door is in emergency circumstances as fire.Because the release mechanism of escape door has with a certain distance from the lock point, traditional fireproofing door lock release mechanism can not be directly used in the subway platform screen door.

The purpose of this utility model is to provide a kind of release mechanism for the escape door in the subway platform screen door.

The purpose of this utility model is achieved in that the utility model comprises lock pin, key release mechanism and push rod release mechanism, described push rod release mechanism comprises push rod, pivot pin, guide, eccentric wheel, pressing plate and slide block, slide block is positioned at the munnion of doorframe, be provided with pin-and-hole in its outside, lock pin one end is fixed on the column, one end stretches in the pin-and-hole, pressing plate is fixed on the slide block and interlocks with the top of lock pin cap, push rod is installed on the rail side of escape door, fixedly connected with pivot pin in the end, pivot pin is arranged in guide, and guide is fixed on the munnion, eccentric wheel be arranged in slide block the side groove and with coaxial the fixedlying connected of pivot pin of push rod one end; Described key release mechanism comprises lock, lock shaft and lock core eccentric wheel, lock be fixed in the munnion and lockhole towards platform, lock shaft and lock core eccentric wheel be fixed into one and can be in lock coaxial rotation, the cross section of lock shaft is non-circular, and the eccentric rear section of lock core is arranged in the groove of slide block inboard.Releasing process of the present utility model is as follows: press down push rod, drive pivot pin and rotate, be connected in the also rotation thereupon of eccentric wheel on the pivot pin, slide block and pressing plate are up pushed up, pressing plate and lock pin cap are staggered, can open the escape door door lock this moment from rail side; In platform side private key is enclosed within on the lock shaft and rotates, drive the lock core eccentric wheel and rotate, slide block and pressing plate are up pushed up, pressing plate and lock pin cap are staggered, thereby unblank.After unblanking, push rod and internal component reset by the self gravitation effect.

Technique effect of the present utility model is: the utility model adopts the push rod release mechanism in rail side, in platform side the key release mechanism is set, after the locking, can only use the private key release in platform side, satisfied safety requirements to escape door, under the then any state of rail side, can press down push rod and unblank, thus the needs of the satisfied escape of rail side passenger in emergency circumstances.In addition, the utility model is a mechanical release mechanism completely, also can realize unlocking function under powering-off state, and the escape door design of having satisfied subway shield door system is in case of emergency to the requirement of release mechanism.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 has installed the front view of the escape door of release mechanism of the present utility model in platform side.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Fig. 4 is the D-D sectional view of Fig. 2.

Fig. 5 is the E-E sectional view of Fig. 1.

Fig. 6 is the C-C sectional view of Fig. 1.

As shown in Figure 1, release mechanism of the present utility model is installed on the escape door doorframe munnion 1 on one side.As Fig. 1, Fig. 3, Fig. 4 and shown in Figure 5, present embodiment is provided with three lock points up and down, promptly is fixed with three lock pins 3 up and down on column 2, and is provided with the lock pin cap at an end of lock pin 3.

As Fig. 4, Fig. 5 and shown in Figure 6, present embodiment is equipped with the push rod release mechanism on munnion 1, the push rod release mechanism is by push rod 4, pivot pin 5, guide 6, eccentric wheel 7, pressing plate 8, slide block 9 and slide plate 10 are formed, slide block 9 is positioned at munnion 1, be provided with a slide block 9 corresponding to each lock pin 3, slide block 9 connects in aggregates by slide plate 10 by screw up and down, the outside at slide block 9 is provided with pin-and-hole, the perforate of one end on munnion 1 of lock pin 3 stretched in the pin-and-hole, pressing plate 8 is fixed on the slide block 9 and interlocks with the top of lock pin cap, between the bottom of lock pin 3 and pin-and-hole bottom, leave activity space, itself and lock pin cap are staggered when on pressing plate 8, moving up and down.Push rod 4 is positioned at track one side of escape door, its two ends, left and right sides are installed on the munnion 1 on both sides, push rod 4 welds together at two ends and pivot pin 5, pivot pin 5 is arranged in guide 6, guide 6 is fixed on the munnion 1, the wherein pivot pin 5 of an end and eccentric wheel 7 coaxial fixedlying connected, eccentric wheel 7 is arranged in the side groove of slide block 9.At lock-out state, lock pin cap and pressing plate 8 interlock, and escape door is locked, during in case of emergency as fire, at anyone pressed down push rod 4 of train rail one side, emergent door lock is opened, realize the escaping function of escape door, its concrete releasing process is as follows: press down rotating push-rod 4, drive pivot pin 5 and rotate, be connected in the also rotation thereupon of eccentric wheel 7 on the pivot pin 5, slide block 9, slide plate 10 and pressing plate 8 are up pushed up, pressing plate 8 and lock pin cap are staggered, thereby open door lock.When stopping to press push rod 4, pressing plate 8, slide block 9, slide plate 10 are because action of gravity moves down, and pressing plate 8 interlocks again with the lock pin cap, and this moment, escape door was locked again.

As Fig. 2 and shown in Figure 4, present embodiment also is equipped with the key release mechanism on munnion 1, it is made up of lock 11, square lock shaft 12 and lock core eccentric wheel 13, lock 11 be fixed in the munnion 1 and lockhole towards platform as shown in Figure 1, lock shaft 12 and lock core eccentric wheel 13 be one and can be in lock 11 coaxial rotation, the rear section of lock core eccentric wheel 13 is arranged in the groove of slide block 9 inboards.When private key entangled square lock shaft 12 and rotates, lock core eccentric wheel 13 rotated thereupon, and slide block 9 is up pushed up, and pressing plate 8 also moves up, and staggers with lock pin 3 caps, thereby opens door lock.After private key took out, pressing plate 8, slide block 9, slide plate 10 were because action of gravity moves down, and pressing plate 8 interlocks again with the lock pin cap, and this moment, escape door was locked again.Like this, can not at will open escape door, have only subway staff available dedicated key to open the passenger of escape door platform one side.

The cross section of above-mentioned lock shaft 12 also can be that other is non-circular, as triangle, polygon etc., is provided with the non-circular hole of shape unanimity therewith on private key.

The foregoing description is provided with three lock points, and the quantity of lock point can be one, two or several in the utility model, correspondingly is provided with the slide block that quantity equates, counting when lock is that the quantity of slide block is one, has not needed slide plate certainly for the moment.

Claims

1. subway platform escape door release mechanism, comprise lock pin and key release mechanism, it is characterized in that: also comprise the push rod release mechanism, it comprises push rod, pivot pin, guide, eccentric wheel, pressing plate and slide block, slide block is positioned at the munnion of doorframe, be provided with pin-and-hole in its outside, lock pin one end is fixed on the column, one end stretches in the pin-and-hole, and pressing plate is fixed on the slide block and interlocks with the top of lock pin cap, and push rod is installed on the rail side of escape door, fixedly connected with pivot pin in the end, pivot pin is arranged in guide, and guide is fixed on the munnion, eccentric wheel be arranged in slide block the side groove and with coaxial the fixedlying connected of pivot pin of push rod one end; Described key release mechanism comprises lock, lock shaft and lock core eccentric wheel, lock be fixed in the munnion and lockhole towards platform, lock shaft and lock core eccentric wheel be fixed into one and can be in lock coaxial rotation, the cross section of lock shaft is non-circular, and the eccentric rear section of lock core is arranged in the groove of slide block inboard.

2. subway platform escape door release mechanism according to claim 1 is characterized in that: described lock pin is provided with up and down several, correspondingly is provided with the slide block that quantity equates, slide block is fixed together by slide plate up and down.