CN100551808C

CN100551808C - Anti-falling elevator door locking device

Info

Publication number: CN100551808C
Application number: CNB2006100187259A
Authority: CN
Inventors: 张广兴; 张自强; ***
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-07
Filing date: 2006-04-07
Publication date: 2009-10-21
Anticipated expiration: 2026-04-07
Also published as: CN1827514A

Abstract

The invention discloses a kind of fall arrest layer door latch apparatus, on the basis of former elevator door lock, set up hook with safety tong, hook with safety tong push rod, hook with safety tong torsion spring, hook with safety tong bearing pin, hook with safety tong tip-lever support, hook with safety tong and dial plate.The hook with safety tong hole is set on lock body, and has hole at the elevator door link plate respectively, have hole corresponding to layer door hanging plate hole place at the layer door hanging plate track.Hook with safety tong is loaded on the lock body, connects by the hook with safety tong bearing pin, and the hook with safety tong torsion spring is housed on the bearing pin, and the hook with safety tong torsion spring acts on hook with safety tong, and hook with safety tong push rod one end jack-up hook with safety tong, the other end are installed in hook with safety tong and dial in the groove on the plate.Layer door latch apparatus novel structure of the present invention, multiple functional, safe and reliable, the personnel that can effectively prevent outside the Room open layer door with triangular key and crash into the hoistway accident and take place, and may not yet in effectly lock the generation personnel hoistway accident of falling after preventing to unblank with triangular key again and take place; Simple in structure, be suitable for that batch manufacturing, productive costs are low, cost performance is for high.

Description

Anti-falling elevator door locking device

Technical field

The present invention relates to a kind of elevator accessory, relate in particular to a kind of elevator door closing appliance.

Background technology

The shearing accident of falling of elevator door zone is the main type that personnel's injury accident takes place elevator.Account for more than 90% of whole elevator accident according to statistics, and consequence is serious, either dead or wounded.At above-mentioned existing problems " dropping-and shearing-preventing elevator safety door lock controlling system (patent No. ZL02136334.X) " proposed, " dropping-and shearing-preventing elevator safety door lock " (patent No. ZL02265955.2), " a kind of novel dropping-and shearing-preventing elevator safety door lock " (patent No. ZL200420019730.8), realized that elevator door interlocking electrical safety circuit is out of order when opening the door operation, when sending sound and light alarm, stop the elevator operation, prevent that the shearing accident from taking place, realized preventing that personnel open layer door with triangular key outside the Room, car does not crash into the generation of hoistway accident at this layer.But there is the problem that needs on the basis of original door lock of elevator, to increase safety attachment.

Summary of the invention

The objective of the invention is to: overcome the defective and the problem of existing door lock and aforementioned patent, provide a kind of and can replace existing door lock to be used for novel structure on the elevator, safe and reliable, can prevent the novel layer door latch apparatus that falling accident takes place effectively.

The present invention realizes by following scheme: by main pay a door electric safety device break back contact, main door moving contact, pay a door moving contact, primary door latch hook, pay the door lock hook, primary door latch hook roller, triangulation chain push rod, triangulation chain tip-lever support, triangulation chain are dialled plate, triangle lock, primary door latch hook spring, primary door latch body, hook with safety tong, hook with safety tong push rod, hook with safety tong torsion spring, hook with safety tong bearing pin, hook with safety tong tip-lever support, hook with safety tong are dialled plate and constituted.The hook with safety tong hole is set on lock body, and have hole at the relative lock body hook with safety tong of elevator door link plate hole place respectively so that the hook with safety tong action time is passed through, have hole corresponding to layer door hanging plate hole place so that the hook with safety tong action is inserted at the layer door hanging plate track, door lock is lived.Hook with safety tong is loaded on the lock body, connect lock body by the hook with safety tong bearing pin, the hook with safety tong torsion spring is housed on the bearing pin, the hook with safety tong torsion spring acts on hook with safety tong, hook with safety tong push rod one end jack-up hook with safety tong, the other end is installed in hook with safety tong and dials in the groove on the plate, the axle of hook with safety tong push rod is loaded in the hook with safety tong tip-lever support axis hole, so that rotation, the hook with safety tong tip-lever support is fixed on the lock body, and hook with safety tong is dialled plate and is installed on the lock body, can move up and down, its upper side fluting is connected with the hook with safety tong push rod, and the lower end perforate is connected with the triangulation chain push rod.

Triangulation chain tip-lever support of the present invention is provided with a location device, and the triangulation chain push rod is loaded in the triangulation chain ejector pins seat hole, and the triangulation chain tip-lever support is fixed on layer door-plate.

Registration device of the present invention is made up of the steel ball pit on steel ball, steel ball and spring, spring guide securement hole, the triangulation chain push rod, and triangulation chain push rod lower end is loaded on triangulation chain and dials in the board slot hole, and triangulation chain is dialled plate and is loaded on the triangle lock.

Safe structure push rod of the present invention is the bent axle shape.

Layer door hanging plate rail safety dog hole of the present invention is apart from layer door limit 60-110mm.

Layer door latch apparatus novel structure of the present invention, multiple functional, safe and reliable, have following characteristics: the defective that 1, has overcome the layer door lock existence of using on the present elevator, the problem of hoistway does not prevent from may the generation personnel that lock again not yet in effect to fall after triangular key from opening the function of the attached hoistway that falls of layer door personnel and existing triangular key to unblank, the personnel that can effectively prevent outside the Room crash into the hoistway accident with the triangular lamella door and take place, and may not yet in effectly lock the generation personnel hoistway accident of falling after preventing to unblank with triangular key again and take place; 2, can be under the situation that does not change the existing layer door, utilize layer door latch apparatus of the present invention to replace existing door lock to be used for using on the elevator, easy to utilize, the operator is not had specific (special) requirements, simple in structure, be suitable for that batch manufacturing, productive costs are low, cost performance is for high.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a hook with safety tong movement device local structure scheme drawing of the present invention;

Fig. 3 is for hook with safety tong of the present invention is dialled plate triangulation chain push rod, triangulation chain is dialled plate structural representation is set;

Fig. 4 is a triangulation chain push rod positioning device structure scheme drawing of the present invention;

Fig. 5 is a hook with safety tong lock structure scheme drawing of the present invention.

The specific embodiment

Below the present invention is described in detail for the contrast accompanying drawing.

Referring to accompanying

drawing

1,2,3,4 and 5, layer door latch apparatus by main pay a door electric safety device break back contact 7, main door moving contact 8, pay a door moving contact 9, primary door latch hook 10, pay door lock hook 11, primary door latch hook roller 12, triangulation chain push rod 13, triangulation chain tip-lever support 14, triangulation chain are dialled plate 16, triangle lock 17, primary door latch hook spring 18, primary door latch body 19, hook with safety tong 1, bent axle shape hook with safety tong push rod 2, hook with safety tong torsion spring 3, hook with safety tong bearing pin 4, hook with safety tong tip-lever support 5, hook with safety tong are dialled plate 6 and formed.Hook with safety tong hole 29 is set on lock body 19, and have hole 30 at elevator door link plate 20 relative lock body hook with safety tong holes 29 places respectively so that the hook with safety tong action time is passed through, have hole 31 corresponding to layer door hanging plate hole 30 places so that the hook with safety tong action is inserted at layer door hanging plate track 21, door lock is lived; Hook with safety tong 1 is loaded on the lock body 19, connect lock body 19 by hook with safety tong bearing pin 4, hook with safety tong torsion spring 3 is housed on the bearing pin 4, hook with safety tong torsion spring 3 acts on hook with safety tong 1, hook with safety tong push rod 2 one end jack-up hook with safety tongs 1, the other end is installed in hook with safety tong and dials in the groove on the plate 6, the axle of hook with safety tong push rod 2 is loaded in hook with safety tong tip-lever support 5 axis holes, so that rotation, hook with safety tong tip-lever support 5 is fixed on the lock body 19, and hook with safety tong is dialled plate 6 and is installed on the lock body 19, can move up and down, its upper side fluting is connected with hook with safety tong push rod 2, and the lower end perforate is connected with triangulation chain push rod 13.Triangulation chain tip-lever support 14 is provided with a location device 15, and triangulation chain push rod 13 is loaded in the triangulation chain ejector pins seat hole, and triangulation chain tip-lever support 14 is fixed on layer door-plate 27.Registration device 15 is made up of steel ball pit A, the B on steel ball 22, steel ball and spring 23, spring guide securement hole 24, the triangulation chain push rod, triangulation chain push rod 13 lower ends are loaded on triangulation chain and dial in plate 16 slotted eyes, triangulation chain is dialled plate 16 and is loaded on the triangle lock 17, on 17 layers of door-plate 27 of triangle lock.

Principle of work of the present invention is as follows: the switch of layer door was to be finished by the door cutter drive primary door latch hook roller 12 of gate when elevator normally moved, at closing time, gate door cutter drives primary door latch hook roller 12 and makes primary door latch hook 10, layer door hanging plate 20 moves to adapter plate 26 directions, paying door lock hook 11 simultaneously also moves to adapter plate 26 directions with paying door layer door hanging plate 25,

layer door

27,28, close when putting in place, primary door latch hook 10 hooks pays door lock hook 11, to lead, paying layer door 27-28 pins, hook when paying door lock hook 11 when primary door latch hook 10 simultaneously, be loaded on the main door moving contact 8 on the primary door latch hook 10 and the break back contact closure of electric safety device 7; Be loaded on the electric security protector effect of the break back contact closure of paying door moving contact 9 and electric safety device 7 of paying on the door layer door hanging plate 25 when reaching layer door lock and closing.

When opening the door, roller 12 is under the drive of car door cutter, and primary door latch hook 10 lifts, and breaks away to pay door lock hook 11, and layer door opened under the drive of gate, complete layer Men Kaimen action.

During normal the operation, because the steel ball 22 in triangulation chain push rod 13, the registration device 15 is positioned at the A pit of triangulation chain push rod 13, push rod is positioned at the A position, triangulation chain push rod 13 drove hook with safety tongs and dialled plate 6 hook with safety tong push rod 2 is positioned at position with hook with safety tong 1 jack-up this moment, hook with safety tong 1 in insert layer door strap track 21 holes 31, does not influence the normal switch of elevator door.

Insert triangle lock 17 in Room external application triangular key, triangulation chain is dialled plate 16 when opening layer door, drive top on the triangulation chain push rod 13, steel ball 22 in the registration device 15 is fallen in the B pit of push rod 13, push rod is positioned at the B position, this moment, push rod 13 was with primary door latch hook 10 jack-up, break away from and pay door lock hook 11, but make layer door be in open mode, it is up that while triangulation chain push rod 13 drive hook with safety tongs are dialled plate 6, hook with safety tong push rod 2 is positioned at the position that hook with safety tong 1 is put down, hook with safety tong 1 is under the effect of hook with safety tong torsion spring 3 and self gravitation, hook with safety tong 1 by lock body 19 hole 29 and the hole 30 of layer door hanging plate 20 after contact on layer door hanging plate track 21, personnel strike out layer door 27 with the hand outside the Room, 28,

layer door

27,28 when being opened to the 60-110mm opening, in the hole 31 on the hook with safety tong 1 insert layer door strap track 21 of layer door hanging plate 20 motions, with

layer door

27,28 pin, and can not continue to open.

Have only the Room outward swinging door personnel of working as from layer door opening, observe elevator hoistways and confirm that car is after the no danger of this layer, with the triangular key opposite spin, triangulation chain is dialled plate 16, it is descending to drive triangulation chain push rod 13, steel ball 22 in the registration device 15 falls in the A pit on the triangulation chain push rod 13, triangulation chain push rod 13 is positioned at the A position, triangulation chain push rod 13 put down primary door latch hook 10 and (paid door lock hook 11 because of leaving this moment, pin layer door 27 so can not hook mutually, 28) simultaneously triangulation chain push rod 13 drives hook with safety tongs and dials plate 6 hook with safety tong push rod 2 is positioned at position with hook with safety tong 1 jack-up, deviate from the hole 31 of hook with safety tong 1 from layer door hanging plate track 21,

layer door

27,28 releases, personnel can continue with hand layer door 27 outside the Room, 28 open safety enters hoistway, this secondary mode of opening the door, can prevent effectively that personnel open layer door with triangular key outside the Room, the hoistway accident of falling takes place.

Operating personal enter hoistway work intact after, when going out hoistway as long as layer door closed elevator just can normal operation input.

Claims

1, a kind of anti-falling elevator door locking device, by the main door electric safety device break back contact (7) of paying, main door moving contact (8), pay door moving contact (9), primary door latch hook (10), pay door lock hook (11), primary door latch hook roller (12), triangulation chain push rod (13), triangulation chain tip-lever support (14), triangulation chain is dialled plate (16), triangle lock (17), primary door latch hook spring (18), primary door latch body (19) is formed, it is characterized in that: have additional hook with safety tong (1), hook with safety tong push rod (2), hook with safety tong torsion spring (3), hook with safety tong bearing pin (4), hook with safety tong tip-lever support (5), hook with safety tong is dialled plate (6), hook with safety tong hole (29) is set on lock body (19) simultaneously, and respectively elevator door link plate (20) relatively lock body hook with safety tong hole (29) locate to have hole (30) so that pass through during the hook with safety tong action, locate to have hole (31) corresponding to layer door hanging plate hole (30) so that the hook with safety tong action is inserted at layer door hanging plate track (21), door lock is lived; Hook with safety tong (1) is loaded on the lock body (19), connect lock body (19) by hook with safety tong bearing pin (4), hook with safety tong torsion spring (3) is housed on the bearing pin (4), hook with safety tong torsion spring (3) acts on hook with safety tong (1), hook with safety tong push rod (2) one end jack-up hook with safety tongs (1), the other end is installed in hook with safety tong and dials in the groove on the plate (6), the axle of hook with safety tong push rod (2) is loaded in hook with safety tong tip-lever support (5) axis hole, so that rotation, hook with safety tong tip-lever support (5) is fixed on the lock body (19), and hook with safety tong is dialled plate (6) and is installed on the lock body (19), can move up and down, its upper side fluting is connected with hook with safety tong push rod (2), and the lower end perforate is connected with triangulation chain push rod (13).

2, anti-falling elevator door locking device according to claim 1, it is characterized in that: triangulation chain tip-lever support (14) is provided with a location device (15), triangulation chain push rod (13) is loaded in the triangulation chain ejector pins seat hole, and triangulation chain tip-lever support (14) is fixed on layer door-plate (27).

3, anti-falling elevator door locking device according to claim 2, it is characterized in that: registration device (15) is made up of the steel ball pit (A, B) on steel ball (22), steel ball and spring (23), spring guide securement hole (24), the triangulation chain push rod, triangulation chain push rod (13) lower end is loaded on triangulation chain and dials in plate (16) slotted eye, and triangulation chain is dialled plate (16) and is loaded on the triangle lock (17).

4, anti-falling elevator door locking device according to claim 1 and 2 is characterized in that: safe structure push rod (2) is the bent axle shape.