CN2619918Y

CN2619918Y - Elevator safety door lock device

Info

Publication number: CN2619918Y
Application number: CN 03221258
Authority: CN
Inventors: 卢培增
Original assignee: Nanjing Runer Hongxin Science & Technology Co Ltd
Current assignee: Nanjing Runer Hongxin Science & Technology Co Ltd
Priority date: 2003-04-18
Filing date: 2003-04-18
Publication date: 2004-06-09
Anticipated expiration: 2013-04-18

Abstract

The utility model relates to a relatively safe elevator safety door and lock device, which is designed under the circumstance that when the elevator has a fault, the maintainer needs to open a floor door with a triangular key so as to ensure that the maintainer has adequate attention to his lock opening action while opening the floor door. The relatively safe elevator safety door and lock device belongs to the auxiliary device of the elevator which is matched to the building. The relatively safe elevator safety door and lock device comprises a safety lock tongue, a lock hook, a floor door suspension plate, a safety pushing bar and a limiting baffle plate; wherein, the safety lock tongue is made up of a main lock tongue and a minor lock tongue. The safety pushing bar increases the length of the bent part of the original pushing bar, and also passes through the floor door suspension plate. A rectangular shaped iron plate is folded a right angle and then is named as the limiting baffle plate, and the limiting baffle plate is fixedly arranged on the lock hook and the upper ridge at the back part of the floor door suspension plate, as well as matched to the safety pushing bar. The utility model has the advantages of simple structure, low cost and high practicability; furthermore, the utility model has a security and ensuring effect for the maintainer opening the floor door after the elevator had and fault.

Description

The elevator safety door lock assembly

Technical field

The utility model discussion be that elevator is when et out of order, service personnel needs to open layer door with triangular key, for making service personnel when opening layer door, guaranteeing has enough attentions to the present unlocking action of controlling oneself, and a kind of safer elevator safety door lock assembly of design-calculated.The attendant equipment that belongs to the elevator that cooperates with building.

Background technology

As everyone knows, the mechanism that manually opened layer door all arranged on the elevator door, when lift car during not at this layer, service personnel can use elevator to open special-purpose triangular key and open layer door, mainly be used for guaranteeing to enter when elevator breaks down the maintenance of sedan-chair top or checking usefulness, present elevator hand opening device generally is the triangulation chain that a special use is installed on every layer layer door, by triangulation chain drive transfer bar mechanism or link gear layer door lock hook is opened, when opening layer door all is disposable unlatching, be operating personal as long as after with the special-purpose triangular key of elevator layer gate stop lock being thrown off with dead bolt, the elevator door of this layer just can complete opening, if operating personal does not at this moment focus onto this respect, and the wrong hoistway that enters, he probably is strayed into hoistway and casualty accident takes place.

Summary of the invention

The technical solution of the utility model is to improve on the basis of the former mechanical door lock of elevator, increase when a secondary dead bolt, safety push-rod, postive stop baffle reach service personnel with key operated layer door and can not once finish, the secondary action of opening the door need be arranged, provide the opens wide of a safety to observe elevator car position after opening for the first time, overcome in the prior art and the accident that service personnel causes because of carelessness takes place because of only need once finishing unlatching layer door for the person of unblanking.

The utility model door lock of elevator safety device is that it is made up of safety dead bolt, latch hook, layer door hanging plate, safety push-rod, postive stop baffle to the improvement of existing door lock of elevator.Safe dead bolt is made up of two dead bolts of major-minor, and the distance between two dead bolts is 25-50mm.Safety push-rod is with former push rod bent part lengthening 30-50mm; Correspondence position is opened a square hole on former push rod turn of bilge part and layer door hanging plate, makes the push rod bent part of increase pass the square hole of layer door hanging plate, and matches with postive stop baffle.After being converted into the right angle, the square iron plate of one block length is called postive stop baffle, an its right angle face is fixed on the last bank at the layer door hanging plate back side, its another face lower end, right angle and safety push-rod upper end vertical distance L4 are 1-5mm, the size L5 that it and safety push-rod bent part level coincide is 5-20mm, the safety push-rod left side is 20-25mm to the vertical partly horizontal throw L2 on the right side of postive stop baffle, and safety push-rod the right is 5-15mm to the vertical partly horizontal throw L7 on the left side of postive stop baffle.

It is low, practical to the utlity model has cost simple in structure, and service personnel was opened layer door when elevator was had fault the safety control effect.

The drawing explanation

Fig. 1 is the utility model structural representation: 1, fixed support; 2, safe dead bolt; 3, layer door hanging plate; 4, layer every fan; 5, push rod anti-drop device; 6, safety push-rod; 7, triangulation chain; 8, positive stop; 9, lock hook rotating shaft, 10, lock hook; 11, link plate roller; 12, rolling wheel guide rails; 13, layer door gone up bank.

The specific embodiment

The method for making of the utility model elevator safety door lock assembly is such: L1 is the distance between the major-minor dead bolt; L3 is latch hook and dead bolt depth of engagement; L6 is the down suction of push rod upper end and latch hook lower end; L1, L3, L6 life size remain unchanged.At first earlier make safe dead bolt by the shape of (2) among Fig. 1 with rectangular iron plate, promptly on the basis of former dead bolt, increase a secondary dead bolt again and make safe dead bolt, distance is 30mm (distance between former dead bolt and the secondary dead bolt) between two dead bolts, then safe dead bolt is fixed on the support, support is fixed on (being the fixed position of former dead bolt) on the bank.Former push rod bent part is increased 40mm as safety push-rod.Again former push rod bent part and layer door hanging plate correspondence position are opened a square hole, make the former push rod bent part of increase pass the square hole of layer door hanging plate.Do one 30 * 60 rectangular iron plate, and this plate struck out the right angle, make postive stop baffle, with postive stop baffle always edged surface be fixed on lock hook behind near the last bank the layer door hanging plate, its another face lower end, right angle and safety push-rod upper end vertical distance L4 are 2mm, the size L5 that it and safety push-rod bent part level coincide is 20mm, the safety push-rod left side is 20mm to the vertical partly horizontal throw L2 on the right side of postive stop baffle, and safety push-rod the right is 10mm to the vertical partly horizontal throw L7 on the left side of postive stop baffle.

The utility model door lock of elevator safety device, increased postive stop baffle and to the improvement of dead bolt and push rod, new device has increased a process of pausing and confirming when manually opened layer of door, promptly when rotating triangulation chain, triangulation chain effect and push rod, push rod is thrown off latch hook and main dead bolt, finish operational motion for the first time, at this moment layer door stop after can only be opened to safety push-rod and postive stop baffle acts on mutually, at this moment need to pull out triangular key, allow safety push-rod under the effect of gravity or spring, reset, at this moment safety push-rod and postive stop baffle have the gap of L4 (2mm) again, no longer have an effect, at this moment can continue to open layer door, along with latch hook to the moving of opening direction, after latch hook and secondary dead bolt are had an effect, layer door can not be moved unlatching by locking once more, but the pause process be guarantee the opener can not be simply with a breakdown action with regard to complete opening layer door.If having time the action up till now of enough attention diversion is come up, at this moment the opens wide of layer door can design in certain range of sizes, guarantee that at this moment the open operation personnel can not enter hoistway, when the operator confirms to finish in the safe opening width, after having understood his current hazardous situation, if he wants to continue layer door opened, need rotate triangular key once more, can complete opening layer door after making safety push-rod that latch hook is thrown off secondary dead bolt.

Claims

1, door lock of elevator safety device, it is made up of safety dead bolt, latch hook, layer door hanging plate, safety push-rod, postive stop baffle, it is characterized in that: safe dead bolt is made up of two dead bolts of major-minor, and the distance between two dead bolts is 25-50mm.

2, door lock of elevator safety device according to claim 1 is characterized in that: safety push-rod is with former push rod bent part lengthening 30-50mm; Open a square hole in former push rod bent part and layer door hanging plate correspondence position, make the push rod bent part of increase pass the square hole of layer door hanging plate; And match with postive stop baffle.

3, door lock of elevator safety device according to claim 1, it is characterized in that: be called postive stop baffle after the square iron plate of a block length is converted into the right angle, an its right angle face is fixed on the last bank at the layer door hanging plate back side, its another face lower end, right angle and safety push-rod upper end vertical distance L4 are 1-5mm, the size L5 that it and safety push-rod bent part level coincide is 5-20mm, the safety push-rod left side is 20-25mm to the vertical partly horizontal throw L2 on the right side of postive stop baffle, and safety push-rod the right is 5-15mm to the vertical partly horizontal throw L7 on the left side of postive stop baffle.